{"id":5367,"date":"2023-02-15T13:25:31","date_gmt":"2023-02-15T07:55:31","guid":{"rendered":"https:\/\/trysiteprice.com\/blog\/?p=5367"},"modified":"2023-02-15T13:25:31","modified_gmt":"2023-02-15T07:55:31","slug":"tcpdump-monitor-all-eth1-traffic-except-my-own-ssh-session","status":"publish","type":"post","link":"https:\/\/trysiteprice.com\/blog\/tcpdump-monitor-all-eth1-traffic-except-my-own-ssh-session\/","title":{"rendered":"tcpdump: Monitor ALL eth1 Traffic Except My Own SSH Session"},"content":{"rendered":"<p>To monitor all traffic on eth1 except for your own SSH session using <code>tcpdump<\/code>, you can use the following command:<\/p>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre hljs language-css\">sudo tcpdump -<span class=\"hljs-selector-tag\">i<\/span> eth1 not port <span class=\"hljs-number\">22<\/span> and not <span class=\"hljs-attribute\">src<\/span> &lt;your IP <span class=\"hljs-selector-tag\">address<\/span>&gt; and not dst &lt;your IP <span class=\"hljs-selector-tag\">address<\/span>&gt;<br \/>\n<\/code><\/div>\n<\/div>\n<p>Here&#8217;s what each part of the command does:<\/p>\n<ul>\n<li><code>sudo tcpdump<\/code>: Run <code>tcpdump<\/code> with superuser privileges.<\/li>\n<li><code>-i eth1<\/code>: Monitor traffic on the <code>eth1<\/code> interface.<\/li>\n<li><code>not port 22<\/code>: Exclude traffic to and from port 22, which is used by SSH.<\/li>\n<li><code>not src &lt;your IP address&gt;<\/code>: Exclude traffic with your own IP address as the source.<\/li>\n<li><code>not dst &lt;your IP address&gt;<\/code>: Exclude traffic with your own IP address as the destination.<\/li>\n<\/ul>\n<p>Replace <code>&lt;your IP address&gt;<\/code> with the IP address of the machine you&#8217;re connecting from via SSH. This will exclude traffic to and from your SSH session from the output.<\/p>\n<p>With this command, you will see all traffic on the <code>eth1<\/code> interface except your own SSH session. The output will show the source and destination addresses, the protocol used, and any payload data. You can also add other filtering criteria, such as specific protocols or port ranges, using the <code>tcpdump<\/code> command options.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>To monitor all traffic on eth1 except for your own SSH session using tcpdump, you can use the following command: sudo tcpdump -i eth1 not port 22 and not src &lt;your IP address&gt; and not dst &lt;your IP address&gt; Here&#8217;s what each part of the command does: sudo tcpdump: Run tcpdump with superuser privileges. -i &#8230; <a title=\"tcpdump: Monitor ALL eth1 Traffic Except My Own SSH Session\" class=\"read-more\" href=\"https:\/\/trysiteprice.com\/blog\/tcpdump-monitor-all-eth1-traffic-except-my-own-ssh-session\/\" aria-label=\"Read more about tcpdump: Monitor ALL eth1 Traffic Except My Own SSH Session\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5367","post","type-post","status-publish","format-standard","hentry","category-best-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>tcpdump: Monitor ALL eth1 Traffic Except My Own SSH Session - TrySitePrice<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/trysiteprice.com\/blog\/tcpdump-monitor-all-eth1-traffic-except-my-own-ssh-session\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"tcpdump: Monitor ALL eth1 Traffic Except My Own SSH Session - TrySitePrice\" \/>\n<meta property=\"og:description\" content=\"To monitor all traffic on eth1 except for your own SSH session using tcpdump, you can use the following command: sudo tcpdump -i eth1 not port 22 and not src &lt;your IP address&gt; and not dst &lt;your IP address&gt; Here&#8217;s what each part of the command does: sudo tcpdump: Run tcpdump with superuser privileges. -i ... 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