{"id":45770,"date":"2024-10-07T01:45:12","date_gmt":"2024-10-06T17:45:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/45770\/"},"modified":"2024-11-14T10:35:47","modified_gmt":"2024-11-14T02:35:47","slug":"linux-%e4%b8%8b%e6%93%8d%e4%bd%9c-pcap-%e6%96%87%e4%bb%b6%e5%85%b7%e9%ab%94%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/45770\/","title":{"rendered":"Linux \u4e0b\u64cd\u4f5c pcap \u6587\u4ef6\u5177\u9ad4\u65b9\u6cd5"},"content":{"rendered":"<h1 id=\"linux-%e4%b8%8b%e6%93%8d%e4%bd%9c-pcap-%e6%96%87%e4%bb%b6%e5%85%b7%e9%ab%94%e6%96%b9%e6%b3%95-QfMaBOIUNz\">Linux \u4e0b\u64cd\u4f5c pcap \u6587\u4ef6\u5177\u9ad4\u65b9\u6cd5<\/h1>\n<p>\u5728\u7db2\u7d61\u5206\u6790\u548c\u6545\u969c\u6392\u9664\u4e2d\uff0cpcap \u6587\u4ef6\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u6578\u64da\u683c\u5f0f\uff0c\u901a\u5e38\u7528\u65bc\u6355\u7372\u548c\u5b58\u5132\u7db2\u7d61\u6d41\u91cf\u3002\u9019\u4e9b\u6587\u4ef6\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u5de5\u5177\u9032\u884c\u5206\u6790\uff0c\u7279\u5225\u662f\u5728 Linux \u74b0\u5883\u4e2d\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 Linux \u7cfb\u7d71\u4e0b\u64cd\u4f5c pcap \u6587\u4ef6\uff0c\u5305\u62ec\u6355\u7372\u3001\u5206\u6790\u548c\u8f49\u63db\u7b49\u5177\u9ad4\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"1-%e6%8d%95%e7%8d%b2-pcap-%e6%96%87%e4%bb%b6-QfMaBOIUNz\">1. \u6355\u7372 pcap \u6587\u4ef6<\/h2>\n<p>\u5728 Linux \u4e2d\uff0c\u6700\u5e38\u7528\u7684\u6355\u7372\u5de5\u5177\u662f <code>tcpdump<\/code>\u3002\u9019\u662f\u4e00\u500b\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4f86\u6355\u7372\u7db2\u7d61\u6d41\u91cf\u4e26\u5c07\u5176\u4fdd\u5b58\u70ba pcap \u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 <code>tcpdump<\/code> \u6355\u7372\u6d41\u91cf\u7684\u57fa\u672c\u547d\u4ee4\uff1a<\/p>\n<pre><code>sudo tcpdump -i eth0 -w capture.pcap<\/code><\/pre>\n<p>\u5728\u9019\u500b\u547d\u4ee4\u4e2d\uff0c<code>-i eth0<\/code> \u6307\u5b9a\u4e86\u8981\u76e3\u807d\u7684\u7db2\u7d61\u63a5\u53e3\uff0c<code>-w capture.pcap<\/code> \u5247\u6307\u5b9a\u4e86\u8f38\u51fa\u6587\u4ef6\u7684\u540d\u7a31\u3002\u6355\u7372\u904e\u7a0b\u4e2d\uff0c<code>tcpdump<\/code> \u5c07\u6703\u6301\u7e8c\u904b\u884c\uff0c\u76f4\u5230\u7528\u6236\u624b\u52d5\u505c\u6b62\uff08\u901a\u5e38\u662f\u6309 <code>Ctrl+C<\/code>\uff09\u3002<\/p>\n<h2 id=\"2-%e5%88%86%e6%9e%90-pcap-%e6%96%87%e4%bb%b6-QfMaBOIUNz\">2. \u5206\u6790 pcap \u6587\u4ef6<\/h2>\n<p>\u6355\u7372\u5230\u7684 pcap \u6587\u4ef6\u53ef\u4ee5\u4f7f\u7528\u591a\u7a2e\u5de5\u5177\u9032\u884c\u5206\u6790\uff0c\u5176\u4e2d\u6700\u6d41\u884c\u7684\u662f <code>Wireshark<\/code> \u548c <code>tshark<\/code>\u3002<code>Wireshark<\/code> \u662f\u4e00\u500b\u5716\u5f62\u754c\u9762\u7684\u7db2\u7d61\u5354\u8b70\u5206\u6790\u5de5\u5177\uff0c\u800c <code>tshark<\/code> \u5247\u662f\u5176\u547d\u4ee4\u884c\u7248\u672c\u3002<\/p>\n<h3 id=\"2-1-%e4%bd%bf%e7%94%a8-wireshark-QfMaBOIUNz\">2.1 \u4f7f\u7528 Wireshark<\/h3>\n<p>\u8981\u4f7f\u7528 Wireshark \u5206\u6790 pcap \u6587\u4ef6\uff0c\u9996\u5148\u9700\u8981\u5b89\u88dd\u5b83\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u5728 Ubuntu \u4e0a\u5b89\u88dd\uff1a<\/p>\n<pre><code>sudo apt-get install wireshark<\/code><\/pre>\n<p>\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u555f\u52d5 Wireshark\uff0c\u7136\u5f8c\u9078\u64c7 <code>File<\/code> &gt; <code>Open<\/code>\uff0c\u9078\u64c7\u8981\u5206\u6790\u7684 pcap \u6587\u4ef6\u3002Wireshark \u5c07\u986f\u793a\u6355\u7372\u7684\u6578\u64da\u5305\uff0c\u4e26\u63d0\u4f9b\u8a73\u7d30\u7684\u5354\u8b70\u5206\u6790\u3002<\/p>\n<h3 id=\"2-2-%e4%bd%bf%e7%94%a8-tshark-QfMaBOIUNz\">2.2 \u4f7f\u7528 tshark<\/h3>\n<p>\u5982\u679c\u60a8\u66f4\u559c\u6b61\u547d\u4ee4\u884c\u754c\u9762\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>tshark<\/code> \u4f86\u5206\u6790 pcap \u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u547d\u4ee4\uff1a<\/p>\n<pre><code>tshark -r capture.pcap<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u5c07\u986f\u793a pcap \u6587\u4ef6\u4e2d\u7684\u6240\u6709\u6578\u64da\u5305\u3002\u60a8\u9084\u53ef\u4ee5\u4f7f\u7528 <code>-Y<\/code> \u53c3\u6578\u4f86\u904e\u6ffe\u7279\u5b9a\u7684\u5354\u8b70\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>tshark -r capture.pcap -Y http<\/code><\/pre>\n<p>\u9019\u5c07\u50c5\u986f\u793a HTTP \u6578\u64da\u5305\u3002<\/p>\n<h2 id=\"3-%e8%bd%89%e6%8f%9b-pcap-%e6%96%87%e4%bb%b6-QfMaBOIUNz\">3. \u8f49\u63db pcap \u6587\u4ef6<\/h2>\n<p>\u6709\u6642\u5019\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u5c07 pcap \u6587\u4ef6\u8f49\u63db\u70ba\u5176\u4ed6\u683c\u5f0f\uff0c\u4f8b\u5982 CSV \u6216 JSON\u3002\u53ef\u4ee5\u4f7f\u7528 <code>editcap<\/code> \u5de5\u5177\u4f86\u5b8c\u6210\u9019\u4e00\u4efb\u52d9\u3002\u4ee5\u4e0b\u662f\u5c07 pcap \u6587\u4ef6\u8f49\u63db\u70ba CSV \u683c\u5f0f\u7684\u547d\u4ee4\uff1a<\/p>\n<pre><code>editcap -T csv capture.pcap output.csv<\/code><\/pre>\n<p>\u9019\u5c07\u751f\u6210\u4e00\u500b\u540d\u70ba <code>output.csv<\/code> \u7684\u6587\u4ef6\uff0c\u5176\u4e2d\u5305\u542b pcap \u6587\u4ef6\u4e2d\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"4-%e5%b0%8f%e7%b5%90-QfMaBOIUNz\">4. \u5c0f\u7d50<\/h2>\n<p>\u5728 Linux \u74b0\u5883\u4e2d\u64cd\u4f5c pcap \u6587\u4ef6\u662f\u4e00\u500b\u91cd\u8981\u7684\u6280\u80fd\uff0c\u7121\u8ad6\u662f\u9032\u884c\u7db2\u7d61\u6545\u969c\u6392\u9664\u9084\u662f\u5b89\u5168\u5206\u6790\u3002\u901a\u904e\u4f7f\u7528 <code>tcpdump<\/code> \u6355\u7372\u6d41\u91cf\uff0c\u5229\u7528 <code>Wireshark<\/code> \u6216 <code>tshark<\/code> \u9032\u884c\u5206\u6790\uff0c\u4ee5\u53ca\u4f7f\u7528 <code>editcap<\/code> \u9032\u884c\u683c\u5f0f\u8f49\u63db\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u5206\u6790\u7db2\u7d61\u6578\u64da\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u9032\u884c\u7db2\u7d61\u5206\u6790\u6216\u5176\u4ed6\u61c9\u7528\uff0c\u8acb\u8003\u616e\u6211\u5011\u7684\u670d\u52d9\u3002\u6211\u5011\u63d0\u4f9b\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\uff0c\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5728 Linux \u4e0b\u64cd\u4f5c pcap \u6587\u4ef6\u7684\u5177\u9ad4\u65b9\u6cd5\uff0c\u5b78\u7fd2\u5982\u4f55\u6355\u7372\u3001\u5206\u6790\u548c\u8655\u7406\u7db2\u7d61\u6578\u64da\u5305\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-45770","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/45770","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=45770"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/45770\/revisions"}],"predecessor-version":[{"id":45771,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/45770\/revisions\/45771"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=45770"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=45770"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=45770"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}