{"id":51017,"date":"2024-12-03T09:31:50","date_gmt":"2024-12-03T01:31:50","guid":{"rendered":"https:\/\/fwq.ai\/blog\/51017\/"},"modified":"2024-12-03T09:31:50","modified_gmt":"2024-12-03T01:31:50","slug":"linux%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%89%e5%85%a8%e6%80%a7%e7%9a%84%e7%a7%98%e8%af%80%ef%bc%9a%e7%b2%be%e9%80%9a%e8%bf%99%e4%ba%9b%e5%bf%85%e5%a4%87%e5%91%bd%e4%bb%a4-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/51017\/","title":{"rendered":"Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u79d8\u8bc0\uff1a\u7cbe\u901a\u8fd9\u4e9b\u5fc5\u5907\u547d\u4ee4"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u79d8\u8bc0\uff1a\u7cbe\u901a\u8fd9\u4e9b\u5fc5\u5907\u547d\u4ee4<\/h1>\n<p>\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aLinux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u79d8\u8bc0\uff1a\u7cbe\u901a\u8fd9\u4e9b\u5fc5\u5907\u547d\u4ee4\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n<p>Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u79d8\u8bc0\uff1a\u7cbe\u901a\u8fd9\u4e9b\u5fc5\u5907\u547d\u4ee4<\/p>\n<p>\u6458\u8981\uff1a\u4fdd\u62a4Linux\u670d\u52a1\u5668\u7684\u5b89\u5168\u9700\u8981\u4e00\u4e2a\u7efc\u5408\u7684\u65b9\u6cd5\uff0c\u5176\u4e2d\u719f\u7ec3\u4f7f\u7528\u4e00\u4e9b\u5fc5\u5907\u547d\u4ee4\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u51e0\u4e2a\u5e38\u7528\u7684Linux\u547d\u4ee4\uff0c\u5e76\u63d0\u4f9b\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u7ba1\u7406\u5458\u63d0\u5347\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002<\/p>\n<ol>\n<li>\u9632\u706b\u5899 (Firewall)<br \/>\u9632\u706b\u5899\u662f\u4fdd\u62a4\u670d\u52a1\u5668\u5b89\u5168\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u3002\u5728Linux\u4e2d\uff0c\u4f7f\u7528iptables\u547d\u4ee4\u6765\u914d\u7f6e\u9632\u706b\u5899\u89c4\u5219\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u7528\u7684iptables\u547d\u4ee4\u548c\u5176\u793a\u4f8b\uff1a<\/li>\n<\/ol>\n<p>1.1 \u542f\u7528\u9632\u706b\u5899<\/p>\n<pre>sudo systemctl start iptables<\/pre>\n<p>1.2 \u6dfb\u52a0\u89c4\u5219<\/p>\n<pre>sudo iptables -A INPUT -p tcp --dport 22 -j ACCEPT\nsudo iptables -A INPUT -p tcp --dport 80 -j ACCEPT\nsudo iptables -A INPUT -p tcp --dport 443 -j ACCEPT\nsudo iptables -A INPUT -j DROP<\/pre>\n<p>1.3 \u67e5\u770b\u9632\u706b\u5899\u89c4\u5219<\/p>\n<pre>sudo iptables -L -n<\/pre>\n<ol>\n<li>SSH\u767b\u5f55\u7ba1\u7406<br \/>SSH\u662f\u7ba1\u7406\u5458\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u8fdb\u884c\u8fdc\u7a0b\u767b\u5f55\u7684\u5e38\u7528\u5de5\u5177\uff0c\u540c\u65f6\u4e5f\u662f\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u4e00\u4e2a\u5173\u952e\u70b9\u3002\u4ee5\u4e0b\u662f\u51e0\u4e2a\u4fdd\u62a4SSH\u5b89\u5168\u7684\u65b9\u6cd5\uff1a<\/li>\n<\/ol>\n<p>2.1 \u7981\u7528root\u7528\u6237\u8fdc\u7a0b\u767b\u5f55<\/p>\n<pre>sudo nano \/etc\/ssh\/sshd_config\nPermitRootLogin no<\/pre>\n<p>2.2 \u4f7f\u7528\u5bc6\u94a5\u5bf9\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1<\/p>\n<pre>ssh-keygen -t rsa<\/pre>\n<p>2.3 \u66f4\u6539SSH\u7aef\u53e3<\/p>\n<pre>sudo nano \/etc\/ssh\/sshd_config\nPort 2222<\/pre>\n<ol>\n<li>\u7ec6\u7c92\u5ea6\u7684\u6587\u4ef6\u6743\u9650\u63a7\u5236<br \/>\u6b63\u786e\u914d\u7f6e\u6587\u4ef6\u6743\u9650\u53ef\u4ee5\u9632\u6b62\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u548c\u4fee\u6539\u3002\u4ee5\u4e0b\u662f\u51e0\u4e2a\u5e38\u7528\u7684\u547d\u4ee4\uff1a<\/li>\n<\/ol>\n<p>3.1 \u66f4\u6539\u6587\u4ef6\u6743\u9650<\/p>\n<pre>chmod 600 file.txt  # \u53ea\u6709\u6240\u6709\u8005\u62e5\u6709\u8bfb\u5199\u6743\u9650\nchmod 644 file.txt  # \u6240\u6709\u8005\u62e5\u6709\u8bfb\u5199\u6743\u9650\uff0c\u5176\u4ed6\u7528\u6237\u53ea\u8bfb\u6743\u9650\nchmod +x script.sh  # \u6dfb\u52a0\u53ef\u6267\u884c\u6743\u9650<\/pre>\n<p>3.2 \u66f4\u6539\u6587\u4ef6\u6240\u6709\u8005<\/p>\n<pre>sudo chown username:groupname file.txt<\/pre>\n<ol>\n<li>\u8f6f\u4ef6\u5305\u7ba1\u7406<br \/>\u53ca\u65f6\u66f4\u65b0\u8f6f\u4ef6\u5305\u662f\u4fdd\u6301\u670d\u52a1\u5668\u5b89\u5168\u7684\u5173\u952e\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528apt\u547d\u4ee4\u6765\u7ba1\u7406\u8f6f\u4ef6\u5305\u7684\u793a\u4f8b\uff1a<\/li>\n<\/ol>\n<p>4.1 \u66f4\u65b0\u8f6f\u4ef6\u5305\u5217\u8868<\/p>\n<pre>sudo apt update<\/pre>\n<p>4.2 \u5347\u7ea7\u6240\u6709\u5df2\u5b89\u88c5\u7684\u8f6f\u4ef6\u5305<\/p>\n<pre>sudo apt upgrade<\/pre>\n<p>4.3 \u641c\u7d22\u7279\u5b9a\u8f6f\u4ef6\u5305<\/p>\n<pre>apt search package_name<\/pre>\n<ol>\n<li>\u65e5\u5fd7\u7ba1\u7406<br \/>\u65e5\u5fd7\u6587\u4ef6\u8bb0\u5f55\u4e86\u7cfb\u7edf\u7684\u5404\u79cd\u6d3b\u52a8\uff0c\u5305\u62ec\u5b89\u5168\u76f8\u5173\u7684\u4fe1\u606f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\uff1a<\/li>\n<\/ol>\n<p>5.1 \u67e5\u770b\u7cfb\u7edf\u65e5\u5fd7<\/p>\n<pre>tail -f \/var\/log\/syslog<\/pre>\n<p>5.2 \u67e5\u770b\u767b\u5f55\u65e5\u5fd7<\/p>\n<pre>tail -f \/var\/log\/auth.log<\/pre>\n<p>5.3 \u67e5\u770b\u9519\u8bef\u65e5\u5fd7<\/p>\n<pre>tail -f \/var\/log\/nginx\/error.log<\/pre>\n<p>\u7efc\u4e0a\u6240\u8ff0\uff0c\u719f\u7ec3\u4f7f\u7528\u8fd9\u4e9b\u5fc5\u5907\u547d\u4ee4\u662f\u4fdd\u62a4Linux\u670d\u52a1\u5668\u5b89\u5168\u7684\u5173\u952e\u3002\u7ba1\u7406\u5458\u5e94\u8be5\u5b9a\u671f\u66f4\u65b0\u8f6f\u4ef6\u5305\u3001\u914d\u7f6e\u9632\u706b\u5899\u89c4\u5219\u3001\u9650\u5236SSH\u8bbf\u95ee\uff0c\u5e76\u6b63\u786e\u8bbe\u7f6e\u6587\u4ef6\u6743\u9650\u3002\u540c\u65f6\uff0c\u5b9a\u671f\u5ba1\u6838\u7cfb\u7edf\u548c\u767b\u5f55\u65e5\u5fd7\uff0c\u4ee5\u53ca\u5176\u4ed6\u5b89\u5168\u76f8\u5173\u7684\u8bb0\u5f55\u4e5f\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u901a\u8fc7\u638c\u63e1\u8fd9\u4e9b\u77e5\u8bc6\uff0c\u7ba1\u7406\u5458\u5c06\u80fd\u66f4\u597d\u5730\u4fdd\u62a4\u670d\u52a1\u5668\u7684\u5b89\u5168\uff0c\u5e76\u63d0\u9ad8\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aLinux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u79d8\u8bc0\uff1a\u7cbe\u901a\u8fd9\u4e9b\u5fc5\u5907\u547d\u4ee4\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6587\u7ae0\u77e5\u8bc6\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   \u9ad8\u6269\u5c55\u6027\u67b6\u6784\uff1aGo WaitGroup\u4e0e\u5fae\u670d\u52a1\u7684\u65e0\u7f1d\u5bf9\u63a5\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u79d8\u8bc0\uff1a\u7cbe\u901a\u8fd9\u4e9b\u5fc5\u5907\u547d\u4ee4 \u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aLinux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u79d8\u8bc0\uff1a\u7cbe\u901a\u8fd9\u4e9b\u5fc5\u5907\u547d\u4ee4\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002 Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u79d8\u8bc0\uff1a\u7cbe\u901a\u8fd9\u4e9b\u5fc5\u5907\u547d\u4ee4 \u6458\u8981\uff1a\u4fdd\u62a4Linux\u670d\u52a1\u5668\u7684\u5b89\u5168\u9700\u8981\u4e00\u4e2a\u7efc\u5408\u7684\u65b9\u6cd5\uff0c\u5176\u4e2d\u719f\u7ec3\u4f7f\u7528\u4e00\u4e9b\u5fc5\u5907\u547d\u4ee4\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u51e0\u4e2a\u5e38\u7528\u7684Linux\u547d\u4ee4\uff0c\u5e76\u63d0\u4f9b\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u7ba1\u7406\u5458\u63d0\u5347\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002 \u9632\u706b\u5899 (Firewall)\u9632\u706b\u5899\u662f\u4fdd\u62a4\u670d\u52a1\u5668\u5b89\u5168\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u3002\u5728Linux\u4e2d\uff0c\u4f7f\u7528iptables\u547d\u4ee4\u6765\u914d\u7f6e\u9632\u706b\u5899\u89c4\u5219\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u7528\u7684iptables\u547d\u4ee4\u548c\u5176\u793a\u4f8b\uff1a 1.1 \u542f\u7528\u9632\u706b\u5899 sudo systemctl start iptables 1.2 \u6dfb\u52a0\u89c4\u5219 sudo iptables -A INPUT -p tcp &#8211;dport 22 -j ACCEPT sudo iptables -A INPUT -p tcp &#8211;dport 80 -j ACCEPT sudo iptables -A INPUT -p tcp &#8211;dport 443 -j ACCEPT sudo iptables -A INPUT -j DROP 1.3 \u67e5\u770b\u9632\u706b\u5899\u89c4\u5219 sudo iptables -L [&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-51017","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/51017","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=51017"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/51017\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=51017"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=51017"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=51017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}