{"id":16938,"date":"2024-11-18T09:46:12","date_gmt":"2024-11-18T01:46:12","guid":{"rendered":"https:\/\/fwq.ai\/blog\/16938\/"},"modified":"2024-11-18T09:46:12","modified_gmt":"2024-11-18T01:46:12","slug":"%e5%8a%a0%e5%9b%balinux%e6%9c%8d%e5%8a%a1%e5%99%a8%ef%bc%9a%e8%bf%90%e7%94%a8%e5%91%bd%e4%bb%a4%e8%a1%8c%e5%b7%a5%e5%85%b7%e6%8f%90%e9%ab%98%e5%ae%89%e5%85%a8%e6%80%a7","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/16938\/","title":{"rendered":"\u52a0\u56faLinux\u670d\u52a1\u5668\uff1a\u8fd0\u7528\u547d\u4ee4\u884c\u5de5\u5177\u63d0\u9ad8\u5b89\u5168\u6027"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/164\/169422301753772.jpg\" class=\"aligncenter\" title=\"\u52a0\u56faLinux\u670d\u52a1\u5668\uff1a\u8fd0\u7528\u547d\u4ee4\u884c\u5de5\u5177\u63d0\u9ad8\u5b89\u5168\u6027\u63d2\u56fe\" alt=\"\u52a0\u56faLinux\u670d\u52a1\u5668\uff1a\u8fd0\u7528\u547d\u4ee4\u884c\u5de5\u5177\u63d0\u9ad8\u5b89\u5168\u6027\u63d2\u56fe\" \/><\/p>\n<p>\u52a0\u56faLinux\u670d\u52a1\u5668\uff1a\u8fd0\u7528\u547d\u4ee4\u884c\u5de5\u5177\u63d0\u9ad8\u5b89\u5168\u6027<\/p>\n<p>\u6982\u8ff0\uff1a<br \/>\u5728\u5f53\u4eca\u7684\u7f51\u7edc\u73af\u5883\u4e0b\uff0c\u670d\u52a1\u5668\u5b89\u5168\u6027\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u4e3a\u4e86\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u6076\u610f\u653b\u51fb\u548c\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\uff0c\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u6765\u52a0\u56faLinux\u670d\u52a1\u5668\u662f\u4e00\u4e2a\u5fc5\u8981\u7684\u6b65\u9aa4\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u4f7f\u7528\u65b9\u6cd5\u548c\u793a\u4f8b\u4ee3\u7801\uff0c\u5e2e\u52a9\u60a8\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002<\/p>\n<p>SSH\u52a0\u5bc6\u4f20\u8f93\uff1a<br \/>SSH\uff08Secure Shell\uff09\u662f\u4e00\u79cd\u52a0\u5bc6\u7684\u7f51\u7edc\u534f\u8bae\uff0c\u7528\u4e8e\u8fdc\u7a0b\u767b\u5f55\u548c\u6267\u884c\u547d\u4ee4\u3002\u901a\u8fc7\u4f7f\u7528SSH\uff0c\u53ef\u4ee5\u9632\u6b62\u6076\u610f\u7528\u6237\u622a\u53d6\u548c\u7a83\u542c\u4f20\u8f93\u4e2d\u7684\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528SSH\u751f\u6210\u548c\u4f7f\u7528\u5bc6\u94a5\u5bf9\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<ol>\n<li>\n<p>\u751f\u6210SSH\u5bc6\u94a5\u5bf9\uff1a<\/p>\n<pre>ssh-keygen -t rsa -b 4096<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\n<p>\u5c06\u516c\u94a5\u590d\u5236\u5230\u8fdc\u7a0b\u670d\u52a1\u5668\uff1a<\/p>\n<pre>ssh-copy-id \u7528\u6237\u540d@IP\u5730\u5740<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\n<p>\u7981\u7528\u5bc6\u7801\u767b\u5f55\uff08\u53ef\u9009\uff09\uff1a<\/p>\n<pre>sudo vi \/etc\/ssh\/sshd_config<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<\/ol>\n<p>\u627e\u5230#PasswordAuthentication yes\u8fd9\u4e00\u884c\uff0c\u5c06\u5176\u6539\u4e3aPasswordAuthentication no\uff0c\u7136\u540e\u4fdd\u5b58\u5e76\u9000\u51fa\u3002<\/p>\n<ol>\n<li>\n<p>\u91cd\u65b0\u542f\u52a8SSH\u670d\u52a1\uff1a<\/p>\n<pre>sudo systemctl restart sshd<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<\/ol>\n<p>\u9632\u706b\u5899\u8bbe\u7f6e\uff1a<br \/>\u9632\u706b\u5899\u662f\u4e00\u79cd\u7f51\u7edc\u5b89\u5168\u8bbe\u5907\uff0c\u7528\u4e8e\u76d1\u63a7\u548c\u63a7\u5236\u7f51\u7edc\u4e0a\u7684\u6570\u636e\u6d41\u3002\u4f7f\u7528\u9632\u706b\u5899\u53ef\u4ee5\u9650\u5236\u670d\u52a1\u5668\u4e0a\u7684\u5165\u7ad9\u548c\u51fa\u7ad9\u6d41\u91cf\uff0c\u63d0\u4f9b\u5bf9\u6076\u610f\u653b\u51fb\u7684\u4fdd\u62a4\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528iptables\u547d\u4ee4\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<ol>\n<li>\n<p>\u5b89\u88c5iptables\uff1a<\/p>\n<pre>sudo apt-get install iptables<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\n<p>\u521b\u5efa\u65b0\u7684\u9632\u706b\u5899\u89c4\u5219\u6587\u4ef6\uff1a<\/p>\n<pre>sudo touch \/etc\/iptables.rules\nsudo vi \/etc\/iptables.rules<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<\/ol>\n<p>\u5728\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u89c4\u5219\uff1a<\/p>\n<pre>*filter\n# \u9ed8\u8ba4\u7b56\u7565\n:INPUT DROP [0:0]\n:FORWARD DROP [0:0]\n:OUTPUT ACCEPT [0:0]\n\n# \u5141\u8bb8\u672c\u5730\u56de\u73af\u63a5\u53e3\u7684\u8bbf\u95ee\n-A INPUT -i lo -j ACCEPT\n\n# \u5141\u8bb8\u5df2\u7ecf\u5efa\u7acb\u7684\u3001\u76f8\u5173\u7684\u8fde\u63a5\u8fdb\u5165\n-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT\n\n# \u5141\u8bb8SSH\u8fde\u63a5\n-A INPUT -p tcp --dport 22 -j ACCEPT\n\n# \u5141\u8bb8\u5176\u4ed6\u5fc5\u8981\u7684\u7aef\u53e3\n# -A INPUT -p tcp --dport 80 -j ACCEPT\n# -A INPUT -p tcp --dport 443 -j ACCEPT\n\n# \u5141\u8bb8ICMP (Ping)\u8bf7\u6c42\n-A INPUT -p icmp --icmp-type echo-request -j ACCEPT\n\n# \u5141\u8bb8\u9650\u5236\u7684IP\u5730\u5740\u8303\u56f4\n-A INPUT -s \u5141\u8bb8\u8fde\u63a5\u7684IP\u5730\u5740\/\u5b50\u7f51\u63a9\u7801 -j ACCEPT\n\n# \u5141\u8bb8\u67d0\u4e2aIP\u5730\u5740\u8303\u56f4\u7684\u8bbf\u95ee\n# -A INPUT -s \u5141\u8bb8\u8fde\u63a5\u7684IP\u5730\u5740\/\u5b50\u7f51\u63a9\u7801 -j ACCEPT\n\n# \u62d2\u7edd\u6240\u6709\u5176\u4ed6\u5165\u7ad9\u6d41\u91cf\n-A INPUT -j DROP\n\nCOMMIT<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\n<p>\u52a0\u8f7d\u9632\u706b\u5899\u89c4\u5219\u5e76\u8bbe\u7f6e\u5f00\u673a\u542f\u52a8\uff1a<\/p>\n<pre>sudo iptables-restore <\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<\/ol>\n<p>\u5728\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<pre>#!\/bin\/sh\n\/sbin\/iptables-restore &lt;ol start=\"4\"&gt;&lt;li&gt;\n&lt;p&gt;\u91cd\u542f\u670d\u52a1\u5668\u4ee5\u5e94\u7528\u65b0\u7684\u9632\u706b\u5899\u89c4\u5219\uff1a&lt;\/p&gt;\n&lt;pre class=\"brush:bash;toolbar:false;\"&gt;sudo reboot<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u65e5\u5fd7\u548c\u76d1\u89c6\uff1a<br \/>\u65e5\u5fd7\u8bb0\u5f55\u548c\u76d1\u89c6\u662f\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002\u901a\u8fc7\u5b9a\u671f\u5ba1\u67e5\u670d\u52a1\u5668\u65e5\u5fd7\uff0c\u53ef\u4ee5\u53d1\u73b0\u5f02\u5e38\u6d3b\u52a8\u5e76\u91c7\u53d6\u76f8\u5e94\u63aa\u65bd\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u5e38\u7528\u7684\u65e5\u5fd7\u8bb0\u5f55\u548c\u76d1\u89c6\u5de5\u5177\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<ol>\n<li>\n<p>\u67e5\u770b\u7cfb\u7edf\u65e5\u5fd7\uff1a<\/p>\n<pre>sudo tail -f \/var\/log\/syslog<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\n<p>\u67e5\u770b\u6388\u6743\u7528\u6237\u65e5\u5fd7\uff1a<\/p>\n<pre>sudo tail -f \/var\/log\/auth.log<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\n<p>\u76d1\u89c6\u7f51\u7edc\u8fde\u63a5\uff1a<\/p>\n<pre>sudo apt-get install nethogs\nsudo nethogs<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\n<p>\u76d1\u89c6\u7cfb\u7edf\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff1a<\/p>\n<pre>sudo apt-get install htop\nsudo htop<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<\/ol>\n<p>\u603b\u7ed3\uff1a<br \/>\u901a\u8fc7\u4f7f\u7528\u4ee5\u4e0a\u547d\u4ee4\u884c\u5de5\u5177\u548c\u793a\u4f8b\u4ee3\u7801\uff0c\u60a8\u53ef\u4ee5\u589e\u5f3aLinux\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002\u4ece\u751f\u6210SSH\u5bc6\u94a5\u5bf9\u548c\u7981\u7528\u5bc6\u7801\u767b\u5f55\u5230\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219\u548c\u76d1\u89c6\u670d\u52a1\u5668\u65e5\u5fd7\uff0c\u8fd9\u4e9b\u6b65\u9aa4\u53ef\u4ee5\u5e2e\u52a9\u60a8\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u6076\u610f\u653b\u51fb\u548c\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u3002\u5728\u8fd0\u7ef4\u670d\u52a1\u5668\u65f6\uff0c\u8bf7\u52a1\u5fc5\u5b9a\u671f\u5ba1\u67e5\u670d\u52a1\u5668\u65e5\u5fd7\u5e76\u76d1\u89c6\u7cfb\u7edf\u8d44\u6e90\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u4ee5\u786e\u4fdd\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u52a0\u56faLinux\u670d\u52a1\u5668\uff1a\u8fd0\u7528\u547d\u4ee4\u884c\u5de5\u5177\u63d0\u9ad8\u5b89\u5168\u6027\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u52a0\u56faLinux\u670d\u52a1\u5668\uff1a\u8fd0\u7528\u547d\u4ee4\u884c\u5de5\u5177\u63d0\u9ad8\u5b89\u5168\u6027 \u6982\u8ff0\uff1a\u5728\u5f53\u4eca\u7684\u7f51\u7edc\u73af\u5883\u4e0b\uff0c\u670d\u52a1\u5668\u5b89\u5168\u6027\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u4e3a\u4e86\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u6076\u610f\u653b\u51fb\u548c\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\uff0c\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u6765\u52a0\u56faLinux\u670d\u52a1\u5668\u662f\u4e00\u4e2a\u5fc5\u8981\u7684\u6b65\u9aa4\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u4f7f\u7528\u65b9\u6cd5\u548c\u793a\u4f8b\u4ee3\u7801\uff0c\u5e2e\u52a9\u60a8\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002 SSH\u52a0\u5bc6\u4f20\u8f93\uff1aSSH\uff08Secure Shell\uff09\u662f\u4e00\u79cd\u52a0\u5bc6\u7684\u7f51\u7edc\u534f\u8bae\uff0c\u7528\u4e8e\u8fdc\u7a0b\u767b\u5f55\u548c\u6267\u884c\u547d\u4ee4\u3002\u901a\u8fc7\u4f7f\u7528SSH\uff0c\u53ef\u4ee5\u9632\u6b62\u6076\u610f\u7528\u6237\u622a\u53d6\u548c\u7a83\u542c\u4f20\u8f93\u4e2d\u7684\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528SSH\u751f\u6210\u548c\u4f7f\u7528\u5bc6\u94a5\u5bf9\u7684\u793a\u4f8b\u4ee3\u7801\uff1a \u751f\u6210SSH\u5bc6\u94a5\u5bf9\uff1a ssh-keygen -t rsa -b 4096 \u767b\u5f55\u540e\u590d\u5236 \u5c06\u516c\u94a5\u590d\u5236\u5230\u8fdc\u7a0b\u670d\u52a1\u5668\uff1a ssh-copy-id \u7528\u6237\u540d@IP\u5730\u5740 \u767b\u5f55\u540e\u590d\u5236 \u7981\u7528\u5bc6\u7801\u767b\u5f55\uff08\u53ef\u9009\uff09\uff1a sudo vi \/etc\/ssh\/sshd_config \u767b\u5f55\u540e\u590d\u5236 \u627e\u5230#PasswordAuthentication yes\u8fd9\u4e00\u884c\uff0c\u5c06\u5176\u6539\u4e3aPasswordAuthentication no\uff0c\u7136\u540e\u4fdd\u5b58\u5e76\u9000\u51fa\u3002 \u91cd\u65b0\u542f\u52a8SSH\u670d\u52a1\uff1a sudo systemctl restart sshd \u767b\u5f55\u540e\u590d\u5236 \u9632\u706b\u5899\u8bbe\u7f6e\uff1a\u9632\u706b\u5899\u662f\u4e00\u79cd\u7f51\u7edc\u5b89\u5168\u8bbe\u5907\uff0c\u7528\u4e8e\u76d1\u63a7\u548c\u63a7\u5236\u7f51\u7edc\u4e0a\u7684\u6570\u636e\u6d41\u3002\u4f7f\u7528\u9632\u706b\u5899\u53ef\u4ee5\u9650\u5236\u670d\u52a1\u5668\u4e0a\u7684\u5165\u7ad9\u548c\u51fa\u7ad9\u6d41\u91cf\uff0c\u63d0\u4f9b\u5bf9\u6076\u610f\u653b\u51fb\u7684\u4fdd\u62a4\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528iptables\u547d\u4ee4\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219\u7684\u793a\u4f8b\u4ee3\u7801\uff1a \u5b89\u88c5iptables\uff1a sudo apt-get install iptables \u767b\u5f55\u540e\u590d\u5236 \u521b\u5efa\u65b0\u7684\u9632\u706b\u5899\u89c4\u5219\u6587\u4ef6\uff1a sudo touch \/etc\/iptables.rules sudo vi \/etc\/iptables.rules \u767b\u5f55\u540e\u590d\u5236 \u5728\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u89c4\u5219\uff1a *filter # \u9ed8\u8ba4\u7b56\u7565 :INPUT DROP [0:0] :FORWARD DROP [0:0] :OUTPUT [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-16938","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/16938","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=16938"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/16938\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=16938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=16938"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=16938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}