{"id":758,"date":"2012-04-16T15:39:34","date_gmt":"2012-04-16T22:39:34","guid":{"rendered":"http:\/\/yan.lalife.net\/?p=758"},"modified":"2026-01-20T05:07:43","modified_gmt":"2026-01-20T05:07:43","slug":"linux-network-command-tcpdump","status":"publish","type":"post","link":"http:\/\/www.lalife.net\/?p=758","title":{"rendered":"Linux Network command &#8211;tcpdump"},"content":{"rendered":"<p>Examples:<\/p>\n<p>Show details of packets<br \/>\n#tcpdump -nnvvXS<\/p>\n<p><strong>tcpdump<\/strong><\/p>\n<p>show specific type of connection<br \/>\n#tcpdump icmp\/tcp\/udp<\/p>\n<p>Add more options with source\/destination IP\/port, write to file<br \/>\ntcpdump -nnvvXS src 1.2.3.4 and port 3306 -w \/tmp\/test.pcap<\/p>\n<p>Read tcpdump log from the file<br \/>\ntcpdump -qns -0 A -r \/tmp\/test.pcap<\/p>\n<p>tcpick -C -yP -r \/tmp\/test.pcap<\/p>\n<p><strong>ngrep<\/strong><br \/>\nngrep -d any -W byline dst 1.2.3.4 > \/tmp\/test.pcap<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Examples: Show details of packets #tcpdump -nnvvXS tcpdump show specific type of connection #tcpdump icmp\/tcp\/udp Add more options with source\/destination IP\/port, write to file tcpdump -nnvvXS src 1.2.3.4 and port 3306 -w \/tmp\/test.pcap Read tcpdump log from the file tcpdump &hellip; <a href=\"http:\/\/www.lalife.net\/?p=758\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,20],"tags":[],"class_list":["post-758","post","type-post","status-publish","format-standard","hentry","category-linux-command","category-network"],"_links":{"self":[{"href":"http:\/\/www.lalife.net\/index.php?rest_route=\/wp\/v2\/posts\/758","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.lalife.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.lalife.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.lalife.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.lalife.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=758"}],"version-history":[{"count":1,"href":"http:\/\/www.lalife.net\/index.php?rest_route=\/wp\/v2\/posts\/758\/revisions"}],"predecessor-version":[{"id":1879,"href":"http:\/\/www.lalife.net\/index.php?rest_route=\/wp\/v2\/posts\/758\/revisions\/1879"}],"wp:attachment":[{"href":"http:\/\/www.lalife.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.lalife.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=758"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.lalife.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}