![\"ethtool\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3059\u308b\uff01\"](\"https:\/\/lab4ict.com\/system\/wp-content\/uploads\/2021\/02\/fi_linux_01-150x150.png\")
<\/div>ethtool\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3059\u308b\uff01<\/div>
ethtool\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\nIP\u30a2\u30c9\u30ec\u30b9\u306e\u8a2d\u5b9a\u3092\u884c\u3046\uff01<\/h2>\n
IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a2d\u5b9a\u3092\u884c\u3046\uff01<\/h2>\n![\"Linux\u3067IP\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3059\u308b\uff01\uff08nmtui\uff09\"](\"data:image\/gif;base64,R0lGODdhAQABAPAAAN3d3QAAACwAAAAAAQABAAACAkQBADs=\")
<\/div>Linux\u3067IP\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3059\u308b\uff01\uff08nmtui\uff09<\/div>Linux\u3067\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067nmtui\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001IP\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067IP\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3059\u308b\uff01\uff08nmcui\uff09<\/div>Linux\u3067\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067nmcui\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001IP\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3059\u308b\uff01\uff08ip\uff0fss\uff09<\/div>Linux\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b3\u30de\u30f3\u30c9\u306f\u3001net-tools\u30d1\u30c3\u30b1\u30fc\u30b8\u304b\u3089iproute2\u306b\u79fb\u884c\u304c\u9032\u3093\u3067\u3044\u307e\u3059\u3002\u672c\u7a3f\u3067\u306f\u3001iproute2\u306eip\u3068ss\u30b3\u30de\u30f3\u30c9\u306e\u4f7f\u7528\u65b9\u6cd5\u3092\u307e\u3068\u3081\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01<\/h2>\n<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08ping\uff09<\/div>ping\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08nc\uff09<\/div>nc\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08curl\uff09<\/div>curl\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002telnet\u30b3\u30de\u30f3\u30c9\u306e\u5909\u308f\u308a\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08tracepath\uff09<\/div>tracepath\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u306e\u30eb\u30fc\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002...<\/div><\/a><\/div>\nDNS\u3067\u540d\u524d\u89e3\u6c7a\u3092\u884c\u3046\uff01<\/h2>\n<\/div>Linux\u3067DNS\u306e\u540d\u524d\u89e3\u6c7a\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08nslookup\uff09<\/div>nslookup\u30b3\u30de\u30f3\u30c9\u3067\u3001DNS\u306e\u540d\u524d\u89e3\u6c7a\u306e\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067DNS\u306e\u540d\u524d\u89e3\u6c7a\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08dig\uff09<\/div>nslookup\u30b3\u30de\u30f3\u30c9\u3067\u3001DNS\u306e\u540d\u524d\u89e3\u6c7a\u306e\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\nNTP\u3067\u6642\u523b\u540c\u671f\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u3067\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08Chrony\uff09<\/div>Linux\u3067\u3001Chrony\u3092\u4f7f\u7528\u3057\u3066\u6642\u523b\u540c\u671f\u3092\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u3001\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002...<\/div><\/a><\/div>\n\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08curl\uff09<\/div>curl\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08wget\uff09<\/div>wget\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h2>\nTcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u8868\u793a\u5f62\u5f0f\u306e\u6307\u5b9a\uff09<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>Tcpdump\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u306a\u304c\u3089\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\nTShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002TShark\u306f\u3001Wireshark\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\uff08CUI\uff09\u7248\u3067\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08RHEL 8\uff09<\/div>RHEL 8\u306bWireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>WireShark\u306b\u4ed8\u5c5e\u3059\u308bTShark\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u3092\u6271\u3046\uff01<\/h2>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08iwconfig\uff09<\/div>Linux\u3067\u3001iwconfg\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3059\u308b\uff01\uff08iwlist\uff09<\/div>Linux\u3067\u3001iwlist\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n
<\/div>Linux\u3067IP\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3059\u308b\uff01\uff08nmtui\uff09<\/div>
Linux\u3067\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067nmtui\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001IP\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>Linux\u3067IP\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3059\u308b\uff01\uff08nmcui\uff09<\/div>
Linux\u3067\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067nmcui\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001IP\u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b\uff01<\/h2>\n
\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3059\u308b\uff01\uff08ip\uff0fss\uff09<\/div>Linux\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b3\u30de\u30f3\u30c9\u306f\u3001net-tools\u30d1\u30c3\u30b1\u30fc\u30b8\u304b\u3089iproute2\u306b\u79fb\u884c\u304c\u9032\u3093\u3067\u3044\u307e\u3059\u3002\u672c\u7a3f\u3067\u306f\u3001iproute2\u306eip\u3068ss\u30b3\u30de\u30f3\u30c9\u306e\u4f7f\u7528\u65b9\u6cd5\u3092\u307e\u3068\u3081\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01<\/h2>\n<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08ping\uff09<\/div>ping\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08nc\uff09<\/div>nc\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08curl\uff09<\/div>curl\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002telnet\u30b3\u30de\u30f3\u30c9\u306e\u5909\u308f\u308a\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08tracepath\uff09<\/div>tracepath\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u306e\u30eb\u30fc\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002...<\/div><\/a><\/div>\nDNS\u3067\u540d\u524d\u89e3\u6c7a\u3092\u884c\u3046\uff01<\/h2>\n<\/div>Linux\u3067DNS\u306e\u540d\u524d\u89e3\u6c7a\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08nslookup\uff09<\/div>nslookup\u30b3\u30de\u30f3\u30c9\u3067\u3001DNS\u306e\u540d\u524d\u89e3\u6c7a\u306e\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067DNS\u306e\u540d\u524d\u89e3\u6c7a\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08dig\uff09<\/div>nslookup\u30b3\u30de\u30f3\u30c9\u3067\u3001DNS\u306e\u540d\u524d\u89e3\u6c7a\u306e\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\nNTP\u3067\u6642\u523b\u540c\u671f\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u3067\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08Chrony\uff09<\/div>Linux\u3067\u3001Chrony\u3092\u4f7f\u7528\u3057\u3066\u6642\u523b\u540c\u671f\u3092\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u3001\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002...<\/div><\/a><\/div>\n\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08curl\uff09<\/div>curl\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08wget\uff09<\/div>wget\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h2>\nTcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u8868\u793a\u5f62\u5f0f\u306e\u6307\u5b9a\uff09<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>Tcpdump\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u306a\u304c\u3089\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\nTShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002TShark\u306f\u3001Wireshark\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\uff08CUI\uff09\u7248\u3067\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08RHEL 8\uff09<\/div>RHEL 8\u306bWireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>WireShark\u306b\u4ed8\u5c5e\u3059\u308bTShark\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u3092\u6271\u3046\uff01<\/h2>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08iwconfig\uff09<\/div>Linux\u3067\u3001iwconfg\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3059\u308b\uff01\uff08iwlist\uff09<\/div>Linux\u3067\u3001iwlist\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n
<\/div>Linux\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3059\u308b\uff01\uff08ip\uff0fss\uff09<\/div>
Linux\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b3\u30de\u30f3\u30c9\u306f\u3001net-tools\u30d1\u30c3\u30b1\u30fc\u30b8\u304b\u3089iproute2\u306b\u79fb\u884c\u304c\u9032\u3093\u3067\u3044\u307e\u3059\u3002\u672c\u7a3f\u3067\u306f\u3001iproute2\u306eip\u3068ss\u30b3\u30de\u30f3\u30c9\u306e\u4f7f\u7528\u65b9\u6cd5\u3092\u307e\u3068\u3081\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01<\/h2>\n
\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01<\/h2>\n<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08ping\uff09<\/div>ping\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08nc\uff09<\/div>nc\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08curl\uff09<\/div>curl\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002telnet\u30b3\u30de\u30f3\u30c9\u306e\u5909\u308f\u308a\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08tracepath\uff09<\/div>tracepath\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u306e\u30eb\u30fc\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002...<\/div><\/a><\/div>\nDNS\u3067\u540d\u524d\u89e3\u6c7a\u3092\u884c\u3046\uff01<\/h2>\n<\/div>Linux\u3067DNS\u306e\u540d\u524d\u89e3\u6c7a\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08nslookup\uff09<\/div>nslookup\u30b3\u30de\u30f3\u30c9\u3067\u3001DNS\u306e\u540d\u524d\u89e3\u6c7a\u306e\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067DNS\u306e\u540d\u524d\u89e3\u6c7a\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08dig\uff09<\/div>nslookup\u30b3\u30de\u30f3\u30c9\u3067\u3001DNS\u306e\u540d\u524d\u89e3\u6c7a\u306e\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\nNTP\u3067\u6642\u523b\u540c\u671f\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u3067\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08Chrony\uff09<\/div>Linux\u3067\u3001Chrony\u3092\u4f7f\u7528\u3057\u3066\u6642\u523b\u540c\u671f\u3092\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u3001\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002...<\/div><\/a><\/div>\n\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08curl\uff09<\/div>curl\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08wget\uff09<\/div>wget\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h2>\nTcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u8868\u793a\u5f62\u5f0f\u306e\u6307\u5b9a\uff09<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>Tcpdump\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u306a\u304c\u3089\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\nTShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002TShark\u306f\u3001Wireshark\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\uff08CUI\uff09\u7248\u3067\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08RHEL 8\uff09<\/div>RHEL 8\u306bWireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>WireShark\u306b\u4ed8\u5c5e\u3059\u308bTShark\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u3092\u6271\u3046\uff01<\/h2>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08iwconfig\uff09<\/div>Linux\u3067\u3001iwconfg\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3059\u308b\uff01\uff08iwlist\uff09<\/div>Linux\u3067\u3001iwlist\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n
<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08ping\uff09<\/div>
ping\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08nc\uff09<\/div>
nc\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08curl\uff09<\/div>
curl\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002telnet\u30b3\u30de\u30f3\u30c9\u306e\u5909\u308f\u308a\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>Linux\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3046\uff01\uff08tracepath\uff09<\/div>
tracepath\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u306e\u30eb\u30fc\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002...<\/div><\/a><\/div>\nDNS\u3067\u540d\u524d\u89e3\u6c7a\u3092\u884c\u3046\uff01<\/h2>\n
DNS\u3067\u540d\u524d\u89e3\u6c7a\u3092\u884c\u3046\uff01<\/h2>\n<\/div>Linux\u3067DNS\u306e\u540d\u524d\u89e3\u6c7a\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08nslookup\uff09<\/div>nslookup\u30b3\u30de\u30f3\u30c9\u3067\u3001DNS\u306e\u540d\u524d\u89e3\u6c7a\u306e\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067DNS\u306e\u540d\u524d\u89e3\u6c7a\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08dig\uff09<\/div>nslookup\u30b3\u30de\u30f3\u30c9\u3067\u3001DNS\u306e\u540d\u524d\u89e3\u6c7a\u306e\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\nNTP\u3067\u6642\u523b\u540c\u671f\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u3067\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08Chrony\uff09<\/div>Linux\u3067\u3001Chrony\u3092\u4f7f\u7528\u3057\u3066\u6642\u523b\u540c\u671f\u3092\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u3001\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002...<\/div><\/a><\/div>\n\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08curl\uff09<\/div>curl\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08wget\uff09<\/div>wget\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h2>\nTcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u8868\u793a\u5f62\u5f0f\u306e\u6307\u5b9a\uff09<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>Tcpdump\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u306a\u304c\u3089\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\nTShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002TShark\u306f\u3001Wireshark\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\uff08CUI\uff09\u7248\u3067\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08RHEL 8\uff09<\/div>RHEL 8\u306bWireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>WireShark\u306b\u4ed8\u5c5e\u3059\u308bTShark\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u3092\u6271\u3046\uff01<\/h2>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08iwconfig\uff09<\/div>Linux\u3067\u3001iwconfg\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3059\u308b\uff01\uff08iwlist\uff09<\/div>Linux\u3067\u3001iwlist\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n
<\/div>Linux\u3067DNS\u306e\u540d\u524d\u89e3\u6c7a\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08nslookup\uff09<\/div>
nslookup\u30b3\u30de\u30f3\u30c9\u3067\u3001DNS\u306e\u540d\u524d\u89e3\u6c7a\u306e\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>Linux\u3067DNS\u306e\u540d\u524d\u89e3\u6c7a\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08dig\uff09<\/div>
nslookup\u30b3\u30de\u30f3\u30c9\u3067\u3001DNS\u306e\u540d\u524d\u89e3\u6c7a\u306e\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002...<\/div><\/a><\/div>\nNTP\u3067\u6642\u523b\u540c\u671f\u3059\u308b\uff01<\/h2>\n
NTP\u3067\u6642\u523b\u540c\u671f\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u3067\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08Chrony\uff09<\/div>Linux\u3067\u3001Chrony\u3092\u4f7f\u7528\u3057\u3066\u6642\u523b\u540c\u671f\u3092\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u3001\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002...<\/div><\/a><\/div>\n\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08curl\uff09<\/div>curl\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08wget\uff09<\/div>wget\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h2>\nTcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u8868\u793a\u5f62\u5f0f\u306e\u6307\u5b9a\uff09<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>Tcpdump\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u306a\u304c\u3089\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\nTShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002TShark\u306f\u3001Wireshark\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\uff08CUI\uff09\u7248\u3067\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08RHEL 8\uff09<\/div>RHEL 8\u306bWireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>WireShark\u306b\u4ed8\u5c5e\u3059\u308bTShark\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u3092\u6271\u3046\uff01<\/h2>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08iwconfig\uff09<\/div>Linux\u3067\u3001iwconfg\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3059\u308b\uff01\uff08iwlist\uff09<\/div>Linux\u3067\u3001iwlist\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n
<\/div>Linux\u3067\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08Chrony\uff09<\/div>
Linux\u3067\u3001Chrony\u3092\u4f7f\u7528\u3057\u3066\u6642\u523b\u540c\u671f\u3092\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u3001\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002...<\/div><\/a><\/div>\n\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01<\/h2>\n
\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01<\/h2>\n<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08curl\uff09<\/div>curl\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08wget\uff09<\/div>wget\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h2>\nTcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u8868\u793a\u5f62\u5f0f\u306e\u6307\u5b9a\uff09<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>Tcpdump\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u306a\u304c\u3089\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\nTShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002TShark\u306f\u3001Wireshark\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\uff08CUI\uff09\u7248\u3067\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08RHEL 8\uff09<\/div>RHEL 8\u306bWireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>WireShark\u306b\u4ed8\u5c5e\u3059\u308bTShark\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u3092\u6271\u3046\uff01<\/h2>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08iwconfig\uff09<\/div>Linux\u3067\u3001iwconfg\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3059\u308b\uff01\uff08iwlist\uff09<\/div>Linux\u3067\u3001iwlist\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n
<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08curl\uff09<\/div>
curl\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>Linux\u3067HTTP\uff0fHTTPS\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\uff01\uff08wget\uff09<\/div>
wget\u30b3\u30de\u30f3\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h2>\n
\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h2>\nTcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u8868\u793a\u5f62\u5f0f\u306e\u6307\u5b9a\uff09<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>Tcpdump\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u306a\u304c\u3089\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\nTShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002TShark\u306f\u3001Wireshark\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\uff08CUI\uff09\u7248\u3067\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08RHEL 8\uff09<\/div>RHEL 8\u306bWireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>WireShark\u306b\u4ed8\u5c5e\u3059\u308bTShark\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u3092\u6271\u3046\uff01<\/h2>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08iwconfig\uff09<\/div>Linux\u3067\u3001iwconfg\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3059\u308b\uff01\uff08iwlist\uff09<\/div>Linux\u3067\u3001iwlist\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n
<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u8868\u793a\u5f62\u5f0f\u306e\u6307\u5b9a\uff09<\/div>
Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>
Tcpdump\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u306a\u304c\u3089\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>Tcpdump\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>
TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\nTShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n
TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01<\/h3>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>Ubuntu Desktop 22.04\u306b\u3001TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002TShark\u306f\u3001Wireshark\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\uff08CUI\uff09\u7248\u3067\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08RHEL 8\uff09<\/div>RHEL 8\u306bWireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>WireShark\u306b\u4ed8\u5c5e\u3059\u308bTShark\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u3092\u6271\u3046\uff01<\/h2>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08iwconfig\uff09<\/div>Linux\u3067\u3001iwconfg\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3059\u308b\uff01\uff08iwlist\uff09<\/div>Linux\u3067\u3001iwlist\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n
<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>
Ubuntu Desktop 22.04\u306b\u3001Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08Ubuntu Desktop 22.04\uff09<\/div>
Ubuntu Desktop 22.04\u306b\u3001TShark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002TShark\u306f\u3001Wireshark\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\uff08CUI\uff09\u7248\u3067\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>Wireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\uff01\uff08RHEL 8\uff09<\/div>
RHEL 8\u306bWireshark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff09<\/div>
WireShark\u306b\u4ed8\u5c5e\u3059\u308bTShark\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\uff01\uff08\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\uff09<\/div>
TShark\u3067\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u5185\u5bb9\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u3092\u6271\u3046\uff01<\/h2>\n
\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u3092\u6271\u3046\uff01<\/h2>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08iwconfig\uff09<\/div>Linux\u3067\u3001iwconfg\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3059\u308b\uff01\uff08iwlist\uff09<\/div>Linux\u3067\u3001iwlist\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n
<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3059\u308b\uff01\uff08iwconfig\uff09<\/div>
Linux\u3067\u3001iwconfg\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n<\/div>
<\/div>Linux\u3067\u7121\u7ddaLAN\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3059\u308b\uff01\uff08iwlist\uff09<\/div>
Linux\u3067\u3001iwlist\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u89a7\u8868\u793a\u3057\u307e\u3059\u3002...<\/div><\/a><\/div>\n