\nPort 2222
\nPasswordAuthentication no
\nPermitRootLogin no
\nAllowUsers admin maintainer
\nMaxAuthTries 3
\nLoginGraceTime 60
\n<\/code><\/p>\n

\u5728\/etc\/ssh\/sshd_config\u6587\u4ef6\u4e2d\u5e94\u7528\u8fd9\u4e9b\u914d\u7f6e\u5e76\u91cd\u542fSSH\u670d\u52a1\uff1a<\/p>\n


\nsudo systemctl restart sshd
\n<\/code><\/p>\n

4. \u5b9e\u65bd\u5f00\u6e90\u5b89\u5168\u5de5\u5177<\/strong><\/h2>\n

\u5229\u7528\u8fd9\u4e9b\u7ecf\u8fc7\u5b9e\u6218\u68c0\u9a8c\u7684\u5de5\u5177\u6765\u53d1\u6325\u793e\u533a\u9a71\u52a8\u7684\u5b89\u5168\u89e3\u51b3\u65b9\u6848\u7684\u529b\u91cf\uff1a<\/p>\n

\n
• Fail2ban\u5b9e\u65bd\n
  \n
  • \u914d\u7f6e\u81ea\u5b9a\u4e49\u76d1\u72f1\u89c4\u5219<\/li>\n
  • \u8bbe\u7f6e\u9002\u5f53\u7684\u5c01\u7981\u65f6\u95f4\u548c\u67e5\u627e\u65f6\u95f4\u53c2\u6570<\/li>\n
  • \u4e3b\u52a8\u76d1\u63a7\u8eab\u4efd\u9a8c\u8bc1\u65e5\u5fd7<\/li>\n<\/ul>\n<\/li>\n
  • ClamAV\u9632\u75c5\u6bd2\n
    \n
    • \u5b89\u6392\u6bcf\u65e5\u7cfb\u7edf\u626b\u63cf<\/li>\n
    • \u914d\u7f6e\u5b9e\u65f6\u6587\u4ef6\u7cfb\u7edf\u76d1\u63a7<\/li>\n
    • \u8bbe\u7f6e\u68c0\u6d4b\u5230\u5a01\u80c1\u65f6\u7684\u7535\u5b50\u90ae\u4ef6\u901a\u77e5<\/li>\n<\/ul>\n<\/li>\n
    • ModSecurity WAF\n
      \n
      • \u542f\u7528OWASP ModSecurity\u6838\u5fc3\u89c4\u5219\u96c6<\/li>\n
      • \u5b9e\u65bd\u9488\u5bf9\u7279\u5b9a\u5a01\u80c1\u7684\u81ea\u5b9a\u4e49\u89c4\u5219<\/li>\n
      • \u76d1\u63a7\u8bef\u62a5\u5e76\u76f8\u5e94\u8c03\u6574<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

        
\n[sshd]
\nenabled = true
\nport = 2222
\nfilter = sshd
\nlogpath = \/var\/log\/auth.log
\nmaxretry = 3
\nbantime = 3600
\nfindtime = 600
\n<\/code><\/p>\n

        5. \u7cfb\u7edf\u76d1\u63a7\u548c\u65e5\u5fd7\u5206\u6790<\/strong><\/h2>\n

        \u4f7f\u7528\u514d\u8d39\u5de5\u5177\u5b9e\u65bd\u5f3a\u5927\u7684\u76d1\u63a7\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n

        \n
        • \u914d\u7f6eNetdata\u8fdb\u884c\u5b9e\u65f6\u6027\u80fd\u76d1\u63a7<\/li>\n
        • \u8bbe\u7f6eGrafana\u548cInfluxDB\u8fdb\u884c\u6307\u6807\u53ef\u89c6\u5316<\/li>\n
        • \u5b9e\u65bdELK Stack\uff08Elasticsearch, Logstash, Kibana\uff09\u8fdb\u884c\u65e5\u5fd7\u7ba1\u7406<\/li>\n<\/ul>\n

          
\n# \u5b89\u88c5Netdata
\nbash <(curl -Ss https:\/\/my-netdata.io\/kickstart.sh)\n\n# \u914d\u7f6e\u65e5\u5fd7\u8f6e\u8f6c\ncat > \/etc\/logrotate.d\/custom-logs << EOF\n\/var\/log\/custom\/*.log {\n weekly\n rotate 12\n compress\n delaycompress\n missingok\n notifempty\n}\nEOF\n<\/code><\/p>\n

          6. \u5e94\u6025\u54cd\u5e94\u548c\u5907\u4efd\u7b56\u7565<\/strong><\/h2>\n

          \u4f7f\u7528\u539f\u751fLinux\u5de5\u5177\u5b9e\u65bd\u96f6\u6210\u672c\u707e\u96be\u6062\u590d\u8ba1\u5212\uff1a<\/p>\n

          \n
          • \u4f7f\u7528rsync\u521b\u5efa\u81ea\u52a8\u5907\u4efd\u811a\u672c<\/li>\n
          • \u5b9e\u65bd\u589e\u91cf\u5907\u4efd\u7b56\u7565<\/li>\n
          • \u914d\u7f6e\u5f02\u5730\u5907\u4efd\u540c\u6b65<\/li>\n<\/ul>\n

            
\n#!\/bin\/bash
\nBACKUP_DIR=\"\/backup\"
\nTIMESTAMP=$(date +%Y%m%d_%H%M%S)
\nrsync -aAXv --delete --exclude={\"\/dev\/*\",\"\/proc\/*\",\"\/sys\/*\",\"\/tmp\/*\",\"\/run\/*\",\"\/mnt\/*\",\"\/media\/*\",\"\/lost+found\"} \/ $BACKUP_DIR\/system_$TIMESTAMP\/
\nfind $BACKUP_DIR -type d -mtime +7 -exec rm -rf {} \\;
\n<\/code><\/p>\n

            \u5b9e\u65bd\u7b56\u7565\u548c\u6700\u4f73\u5b9e\u8df5<\/strong><\/h2>\n

            \u9075\u5faa\u4ee5\u4e0b\u7cfb\u7edf\u65b9\u6cd5\u6765\u5b9e\u65bd\u8fd9\u4e9b\u5b89\u5168\u63aa\u65bd\uff1a<\/p>\n

            \n
            • \u521d\u59cb\u8bc4\u4f30\n
              \n
              • \u4f7f\u7528Lynis\u8fd0\u884c\u5b89\u5168\u5ba1\u8ba1<\/li>\n
              • \u8bb0\u5f55\u5f53\u524d\u5b89\u5168\u72b6\u51b5<\/li>\n
              • \u8bc6\u522b\u5173\u952e\u8d44\u4ea7\u548c\u670d\u52a1<\/li>\n<\/ul>\n<\/li>\n
              • \u5206\u9636\u6bb5\u5b9e\u65bd\n
                \n
                • \u4ece\u57fa\u672c\u52a0\u56fa\u63aa\u65bd\u5f00\u59cb<\/li>\n
                • \u9010\u6b65\u5b9e\u65bd\u9ad8\u7ea7\u5b89\u5168\u5de5\u5177<\/li>\n
                • \u76d1\u63a7\u7cfb\u7edf\u6027\u80fd\u5f71\u54cd<\/li>\n<\/ul>\n<\/li>\n
                • \u6d4b\u8bd5\u548c\u9a8c\u8bc1\n
                  \n
                  • \u8fdb\u884c\u6e17\u900f\u6d4b\u8bd5<\/li>\n
                  • \u9a8c\u8bc1\u5b89\u5168\u63aa\u65bd\u6709\u6548\u6027<\/li>\n
                  • \u8bb0\u5f55\u548c\u8c03\u6574\u914d\u7f6e<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                    \u76d1\u63a7\u548c\u7ef4\u62a4\u8ba1\u5212<\/strong><\/h2>\n

                    
\n\u6bcf\u65e5\u4efb\u52a1\uff1a
\n- \u68c0\u67e5\u7cfb\u7edf\u65e5\u5fd7
\n- \u76d1\u63a7\u5931\u8d25\u7684\u767b\u5f55\u5c1d\u8bd5
\n- \u9a8c\u8bc1\u5907\u4efd\u5b8c\u6210\u60c5\u51b5<\/p>\n

                    \u6bcf\u5468\u4efb\u52a1\uff1a
\n- \u5ba1\u67e5\u5b89\u5168\u8b66\u62a5
\n- \u66f4\u65b0\u5a01\u80c1\u7b7e\u540d
\n- \u6d4b\u8bd5\u5907\u4efd\u6062\u590d<\/p>\n

                    \u6bcf\u6708\u4efb\u52a1\uff1a
\n- \u5b8c\u6574\u7684\u7cfb\u7edf\u5b89\u5168\u5ba1\u8ba1
\n- \u66f4\u65b0\u6587\u6863
\n- \u5ba1\u67e5\u8bbf\u95ee\u63a7\u5236
\n<\/code><\/p>\n

                    \u7ef4\u62a4\u5f3a\u5927\u7684\u65e5\u672c\u670d\u52a1\u5668\u5b89\u5168\u6027\u5e76\u4e0d\u4e00\u5b9a\u9700\u8981\u5927\u91cf\u7684\u8d44\u91d1\u6295\u5165\u3002\u901a\u8fc7\u5b9e\u65bd\u8fd9\u4e9b\u5177\u6709\u6210\u672c\u6548\u76ca\u7684\u63aa\u65bd\u5e76\u9075\u5faa\u9002\u5f53\u7684\u5b89\u5168\u534f\u8bae\uff0c\u60a8\u53ef\u4ee5\u663e\u8457\u589e\u5f3a\u670d\u52a1\u5668\u7684\u5b89\u5168\u72b6\u51b5\u3002\u8bf7\u8bb0\u4f4f\u5b9a\u671f\u5ba1\u67e5\u548c\u66f4\u65b0\u8fd9\u4e9b\u5b89\u5168\u63aa\u65bd\uff0c\u56e0\u4e3a\u65b0\u7684\u5a01\u80c1\u4e0d\u65ad\u51fa\u73b0\uff0c\u5b89\u5168\u6700\u4f73\u5b9e\u8df5\u4e5f\u5728\u4e0d\u65ad\u53d1\u5c55\u3002<\/p>\n

                    \u4e3a\u4e86\u6700\u4f73\u4fdd\u62a4\u60a8\u7684\u65e5\u672c\u670d\u52a1\u5668\u79df\u7528\u57fa\u7840\u8bbe\u65bd\uff0c\u5c06\u8fd9\u4e9b\u5b89\u5168\u63aa\u65bd\u4e0e\u5b9a\u671f\u5b89\u5168\u5ba1\u8ba1\u76f8\u7ed3\u5408\uff0c\u5e76\u53ca\u65f6\u4e86\u89e3\u65b0\u51fa\u73b0\u7684\u5a01\u80c1\u3002\u8003\u8651\u9010\u6b65\u5b9e\u65bd\u8fd9\u4e9b\u89e3\u51b3\u65b9\u6848\uff0c\u4ee5\u786e\u4fdd\u7cfb\u7edf\u7a33\u5b9a\u6027\u5e76\u4fdd\u6301\u6301\u7eed\u7684\u670d\u52a1\u53ef\u7528\u6027\u3002<\/p>\n

                    \n

                    \u6280\u672f\u5b9e\u65bd\u6ce8\u610f\u4e8b\u9879\uff1a<\/h3>\n

                    \n
                    • \u6240\u6709\u547d\u4ee4\u5e94\u9996\u5148\u5728\u5f00\u53d1\u73af\u5883\u4e2d\u6d4b\u8bd5<\/li>\n
                    • \u7ef4\u62a4\u6240\u6709\u5b89\u5168\u914d\u7f6e\u7684\u8be6\u7ec6\u6587\u6863<\/li>\n
                    • \u5728\u8fdb\u884c\u91cd\u5927\u5b89\u5168\u66f4\u6539\u524d\u521b\u5efa\u8fd8\u539f\u70b9<\/li>\n
                    • \u5728\u6bcf\u6b21\u5b9e\u65bd\u540e\u76d1\u63a7\u7cfb\u7edf\u6027\u80fd\u6307\u6807<\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

                      \u5728\u5feb\u901f\u53d1\u5c55\u7684\u670d\u52a1\u5668\u5b89\u5168\u9886\u57df\u4e2d\uff0c\u4fdd\u62a4\u65e5\u672c\u670d\u52a1\u5668\u79df\u7528\u57fa\u7840\u8bbe\u65bd\u5e76\u4e0d\u603b\u662f\u9700\u8981\u5927\u91cf\u7684\u8d44\u91d1\u6295\u5165\u3002\u867d\u7136\u590d\u6742\u7684\u5b89\u5168\u89e3\u51b3\u65b9\u6848\u901a\u5e38\u4ef7\u683c\u4e0d\u83f2\uff0c\u4f46\u7cfb\u7edf\u7ba1\u7406\u5458\u53ef\u4ee5\u5b9e\u65bd\u8bb8\u591a\u6709\u6548\u7684\u63aa\u65bd\uff0c\u800c\u65e0\u9700\u6295\u5165\u5927\u91cf\u8d44\u91d1\u3002\u672c\u7efc\u5408\u6307\u5357\u63a2\u8ba8\u4e86\u516d\u79cd\u7ecf\u8fc7\u5b9e\u6218\u68c0\u9a8c\u7684\u65b9\u6cd5\uff0c\u5728\u4fdd\u6301\u6210\u672c\u6548\u76ca\u7684\u540c\u65f6\u589e\u5f3a\u670d\u52a1\u5668\u5b89\u5168\u6027\u3002 1. \u57fa\u672c\u7cfb\u7edf\u66f4\u65b0\u548c\u8865\u4e01\u7ba1\u7406 \u670d\u52a1\u5668\u5b89\u5168\u7684\u57fa\u7840\u59cb\u4e8e\u9002\u5f53\u7684\u7cfb\u7edf\u7ef4\u62a4\u3002\u5b9a\u671f\u66f4\u65b0\u662f\u62b5\u5fa1\u5df2\u77e5\u6f0f\u6d1e\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u3002 \u4f7f\u7528’unattended-upgrades’\u8f6f\u4ef6\u5305\u542f\u7528\u81ea\u52a8\u5b89\u5168\u66f4\u65b0 \u5728\u4f4e\u6d41\u91cf\u671f\u95f4\u5b9e\u65bd\u667a\u80fd\u66f4\u65b0\u8c03\u5ea6 \u4e3a\u5173\u952e\u5b89\u5168\u8865\u4e01\u521b\u5efa\u4f18\u5148\u7ea7\u66f4\u65b0\u7b56\u7565 sudo apt-get install unattended-upgrades sudo dpkg-reconfigure unattended-upgrades 2. \u9ad8\u7ea7\u9632\u706b\u5899\u914d\u7f6e\u4f18\u5316 \u6b63\u786e\u914d\u7f6e\u7684\u9632\u706b\u5899\u4ecd\u7136\u662f\u6700\u5177\u6210\u672c\u6548\u76ca\u7684\u5b89\u5168\u63aa\u65bd\u4e4b\u4e00\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u6700\u5927\u5316\u5176\u6f5c\u529b\uff1a \u5b9e\u65bd\u5e26\u6709\u72b6\u6001\u5305\u68c0\u67e5\u7684\u4e25\u683ciptables\u89c4\u5219 \u4e3a\u654f\u611f\u670d\u52a1\u914d\u7f6e\u7aef\u53e3\u6572\u95e8 \u8bbe\u7f6e\u901f\u7387\u9650\u5236\u4ee5\u9632\u6b62DDoS\u653b\u51fb iptables -A INPUT -p tcp –dport 22 -m state –state NEW -m recent –set iptables -A INPUT -p tcp –dport 22 -m state –state NEW -m recent –update –seconds 60 –hitcount 4 -j DROP 3. […]<\/p>\n

                      Read More…<\/a><\/p>\n","protected":false},"author":2,"featured_media":27433,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8117],"tags":[8913,8914,8230,3744,2597],"class_list":["post-27440","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-japan-dedicated-server-sc","tag-budget-security-measures-sc","tag-linux-hardening-sc","tag-japan-server-security-sc","tag-firewall-configuration-sc","tag-server-protection-sc"],"acf":[],"yoast_head":"\n