{"id":16924,"date":"2024-11-18T16:23:21","date_gmt":"2024-11-18T08:23:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/16924\/"},"modified":"2024-11-18T16:23:21","modified_gmt":"2024-11-18T08:23:21","slug":"%e6%9e%84%e5%bb%ba%e5%ae%89%e5%85%a8%e7%9a%84%e8%bf%9c%e7%a8%8b%e8%ae%bf%e9%97%ae%ef%bc%9a%e4%bf%9d%e6%8a%a4%e6%82%a8%e7%9a%84linux%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/16924\/","title":{"rendered":"\u6784\u5efa\u5b89\u5168\u7684\u8fdc\u7a0b\u8bbf\u95ee\uff1a\u4fdd\u62a4\u60a8\u7684Linux\u670d\u52a1\u5668"},"content":{"rendered":"

\"\u6784\u5efa\u5b89\u5168\u7684\u8fdc\u7a0b\u8bbf\u95ee\uff1a\u4fdd\u62a4\u60a8\u7684Linux\u670d\u52a1\u5668\u63d2\u56fe\"<\/p>\n

\u6784\u5efa\u5b89\u5168\u7684\u8fdc\u7a0b\u8bbf\u95ee\uff1a\u4fdd\u62a4\u60a8\u7684Linux\u670d\u52a1\u5668<\/p>\n

\u968f\u7740\u4e92\u8054\u7f51\u7684\u53d1\u5c55\uff0c\u8fdc\u7a0b\u8bbf\u95ee\u5df2\u7ecf\u6210\u4e3a\u7ba1\u7406\u670d\u52a1\u5668\u7684\u5e38\u89c1\u65b9\u5f0f\u3002\u7136\u800c\uff0c\u8fdc\u7a0b\u8bbf\u95ee\u4e5f\u5c06\u670d\u52a1\u5668\u66b4\u9732\u5728\u5404\u79cd\u6f5c\u5728\u7684\u5b89\u5168\u5a01\u80c1\u4e0b\u3002\u4e3a\u4e86\u4fdd\u62a4\u60a8\u7684Linux\u670d\u52a1\u5668\u4e0d\u53d7\u9ed1\u5ba2\u653b\u51fb\uff0c\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u57fa\u672c\u7684\u5b89\u5168\u63aa\u65bd\u548c\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

    \n
  1. \u4f7f\u7528SSH\u5bc6\u94a5\u8ba4\u8bc1
    SSH\uff08Secure Shell\uff09\u662f\u4e00\u79cd\u52a0\u5bc6\u7684\u8fdc\u7a0b\u767b\u5f55\u534f\u8bae\uff0c\u5b83\u53ef\u4ee5\u5b89\u5168\u5730\u8fdc\u7a0b\u8fde\u63a5\u5230\u670d\u52a1\u5668\u3002\u4e0e\u4f20\u7edf\u7684\u7528\u6237\u540d\/\u5bc6\u7801\u767b\u5f55\u65b9\u5f0f\u76f8\u6bd4\uff0cSSH\u5bc6\u94a5\u8ba4\u8bc1\u66f4\u4e3a\u5b89\u5168\u3002\u4ee5\u4e0b\u662f\u751f\u6210\u548c\u4f7f\u7528SSH\u5bc6\u94a5\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
    # \u751f\u6210SSH\u5bc6\u94a5\nssh-keygen -t rsa -b 4096\n\n# \u5c06\u516c\u94a5\u590d\u5236\u5230\u670d\u52a1\u5668\nssh-copy-id username@servername\n\n# \u7981\u7528\u5bc6\u7801\u767b\u5f55\nsudo nano \/etc\/ssh\/sshd_config\n\u5c06 PasswordAuthentication \u8bbe\u7f6e\u4e3a no<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \n
    1. \u4f7f\u7528\u9632\u706b\u5899
      \u9632\u706b\u5899\u53ef\u4ee5\u5e2e\u52a9\u8fc7\u6ee4\u548c\u963b\u6b62\u672a\u7ecf\u6388\u6743\u7684\u8fde\u63a5\u3002\u901a\u8fc7\u8bbe\u7f6e\u9002\u5f53\u7684\u89c4\u5219\uff0c\u53ef\u4ee5\u9650\u5236\u5bf9\u7279\u5b9a\u7aef\u53e3\u548cIP\u5730\u5740\u7684\u8bbf\u95ee\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528iptables\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
      # \u5141\u8bb8\u6240\u6709\u672c\u5730\u8fde\u63a5\niptables -A INPUT -i lo -j ACCEPT\n\n# \u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u8fde\u63a5\niptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT\n\n# \u5141\u8bb8SSH\u8fde\u63a5\niptables -A INPUT -p tcp --dport 22 -j ACCEPT\n\n# \u5176\u4ed6\u6240\u6709\u8fde\u63a5\u5747\u62d2\u7edd\niptables -A INPUT -j DROP\n\n# \u4fdd\u5b58\u89c4\u5219\u5e76\u542f\u7528\u9632\u706b\u5899\niptables-save &gt; \/etc\/iptables.rules<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
        \n
      1. \u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u548c\u8f6f\u4ef6
        \u4fdd\u6301\u7cfb\u7edf\u548c\u8f6f\u4ef6\u7684\u6700\u65b0\u7248\u672c\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3a\u66f4\u65b0\u901a\u5e38\u5305\u542b\u5b89\u5168\u8865\u4e01\u3002\u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u548c\u8f6f\u4ef6\u53ef\u4ee5\u51cf\u5c11\u88ab\u5df2\u77e5\u6f0f\u6d1e\u653b\u51fb\u7684\u98ce\u9669\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528apt-get\u66f4\u65b0\u7cfb\u7edf\u548c\u8f6f\u4ef6\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
        # \u66f4\u65b0\u8f6f\u4ef6\u5305\u5217\u8868\nsudo apt-get update\n\n# \u6267\u884c\u7cfb\u7edf\u66f4\u65b0\nsudo apt-get upgrade\n\n# \u5b9a\u671f\u6267\u884c\u66f4\u65b0\u4efb\u52a1\nsudo crontab -e\n\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff0c\u6bcf\u5468\u81ea\u52a8\u6267\u884c\u66f4\u65b0\uff1a\n0 0 * * 0 apt-get update &amp;&amp; apt-get upgrade -y<\/pre>\n
          \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
          \n
        1. \u4f7f\u7528\u975e\u6807\u51c6\u7aef\u53e3
          \u9ed8\u8ba4\u7684SSH\u7aef\u53e3\u662f22\uff0c\u8fd9\u662f\u9ed1\u5ba2\u6700\u5e38\u5c1d\u8bd5\u653b\u51fb\u7684\u7aef\u53e3\u4e4b\u4e00\u3002\u901a\u8fc7\u4f7f\u7528\u975e\u6807\u51c6\u7aef\u53e3\uff08\u59822222\uff09\u6765\u66ff\u4ee3\u9ed8\u8ba4\u7aef\u53e3\uff0c\u53ef\u4ee5\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u51cf\u5c11\u88ab\u626b\u63cf\u5230\u548c\u653b\u51fb\u7684\u98ce\u9669\u3002\u4ee5\u4e0b\u662f\u4fee\u6539SSH\u7aef\u53e3\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
          # \u7f16\u8f91SSH\u914d\u7f6e\u6587\u4ef6\nsudo nano \/etc\/ssh\/sshd_config\n\n# \u5c06\u7aef\u53e3\u53f7\u4fee\u6539\u4e3a\u975e\u9ed8\u8ba4\u7aef\u53e3\n\u5c06 Port 22 \u6539\u4e3a Port 2222\n\n# \u91cd\u542fSSH\u670d\u52a1\nsudo service ssh restart<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
            \n
          1. \u914d\u7f6e\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf
            \u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\uff08IDS\uff09\u53ef\u4ee5\u76d1\u63a7\u670d\u52a1\u5668\u4e0a\u7684\u7f51\u7edc\u6d41\u91cf\u548c\u7cfb\u7edf\u6d3b\u52a8\uff0c\u5e76\u8b66\u544a\u60a8\u5173\u4e8e\u53ef\u7591\u6216\u6076\u610f\u6d3b\u52a8\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Snort\u914d\u7f6eIDS\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
            # \u5b89\u88c5Snort\nsudo apt-get install snort\n\n# \u914d\u7f6e\u7f51\u7edc\u63a5\u53e3\nsudo ifconfig eth0 promisc\n\n# \u542f\u52a8Snort\nsudo snort -i eth0 -c \/etc\/snort\/snort.conf<\/pre>\n
              \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
            \u5728\u914d\u7f6e\u8fdc\u7a0b\u8bbf\u95ee\u65f6\uff0c\u8bf7\u7262\u8bb0\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002\u5408\u7406\u8bbe\u7f6e\u8bbf\u95ee\u6743\u9650\u3001\u4f7f\u7528\u5f3a\u5bc6\u7801\u3001\u5b9a\u671f\u5907\u4efd\u6570\u636e\u548c\u76d1\u63a7\u670d\u52a1\u5668\u8fd0\u884c\u72b6\u6001\u7b49\u90fd\u662f\u91cd\u8981\u7684\u5b89\u5168\u5b9e\u8df5\u3002<\/p>\n
            \u603b\u7ed3\uff1a<\/p>\n
            \u672c\u6587\u4ecb\u7ecd\u4e86\u4e00\u4e9b\u4fdd\u62a4Linux\u670d\u52a1\u5668\u8fdc\u7a0b\u8bbf\u95ee\u5b89\u5168\u7684\u57fa\u672c\u63aa\u65bd\u548c\u4ee3\u7801\u793a\u4f8b\u3002\u4f7f\u7528SSH\u5bc6\u94a5\u8ba4\u8bc1\u3001\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219\u3001\u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u548c\u8f6f\u4ef6\u3001\u4f7f\u7528\u975e\u6807\u51c6\u7aef\u53e3\u548c\u914d\u7f6e\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\u7b49\u63aa\u65bd\u53ef\u4ee5\u6709\u6548\u51cf\u5c11\u670d\u52a1\u5668\u88ab\u653b\u51fb\u7684\u98ce\u9669\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u8fdb\u884c\u9002\u5f53\u8c03\u6574\u548c\u5b8c\u5584\u3002\u901a\u8fc7\u6784\u5efa\u5b89\u5168\u7684\u8fdc\u7a0b\u8bbf\u95ee\u73af\u5883\uff0c\u60a8\u53ef\u4ee5\u66f4\u597d\u5730\u4fdd\u62a4\u60a8\u7684Linux\u670d\u52a1\u5668\u514d\u53d7\u9ed1\u5ba2\u653b\u51fb\u3002<\/p>\n
            \u4ee5\u4e0a\u5c31\u662f\u6784\u5efa\u5b89\u5168\u7684\u8fdc\u7a0b\u8bbf\u95ee\uff1a\u4fdd\u62a4\u60a8\u7684Linux\u670d\u52a1\u5668\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":"
            \u6784\u5efa\u5b89\u5168\u7684\u8fdc\u7a0b\u8bbf\u95ee\uff1a\u4fdd\u62a4\u60a8\u7684Linux\u670d\u52a1\u5668 \u968f\u7740\u4e92\u8054\u7f51\u7684\u53d1\u5c55\uff0c\u8fdc\u7a0b\u8bbf\u95ee\u5df2\u7ecf\u6210\u4e3a\u7ba1\u7406\u670d\u52a1\u5668\u7684\u5e38\u89c1\u65b9\u5f0f\u3002\u7136\u800c\uff0c\u8fdc\u7a0b\u8bbf\u95ee\u4e5f\u5c06\u670d\u52a1\u5668\u66b4\u9732\u5728\u5404\u79cd\u6f5c\u5728\u7684\u5b89\u5168\u5a01\u80c1\u4e0b\u3002\u4e3a\u4e86\u4fdd\u62a4\u60a8\u7684Linux\u670d\u52a1\u5668\u4e0d\u53d7\u9ed1\u5ba2\u653b\u51fb\uff0c\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u57fa\u672c\u7684\u5b89\u5168\u63aa\u65bd\u548c\u4ee3\u7801\u793a\u4f8b\u3002 \u4f7f\u7528SSH\u5bc6\u94a5\u8ba4\u8bc1SSH\uff08Secure Shell\uff09\u662f\u4e00\u79cd\u52a0\u5bc6\u7684\u8fdc\u7a0b\u767b\u5f55\u534f\u8bae\uff0c\u5b83\u53ef\u4ee5\u5b89\u5168\u5730\u8fdc\u7a0b\u8fde\u63a5\u5230\u670d\u52a1\u5668\u3002\u4e0e\u4f20\u7edf\u7684\u7528\u6237\u540d\/\u5bc6\u7801\u767b\u5f55\u65b9\u5f0f\u76f8\u6bd4\uff0cSSH\u5bc6\u94a5\u8ba4\u8bc1\u66f4\u4e3a\u5b89\u5168\u3002\u4ee5\u4e0b\u662f\u751f\u6210\u548c\u4f7f\u7528SSH\u5bc6\u94a5\u7684\u793a\u4f8b\u4ee3\u7801\uff1a # \u751f\u6210SSH\u5bc6\u94a5 ssh-keygen -t rsa -b 4096 # \u5c06\u516c\u94a5\u590d\u5236\u5230\u670d\u52a1\u5668 ssh-copy-id username@servername # \u7981\u7528\u5bc6\u7801\u767b\u5f55 sudo nano \/etc\/ssh\/sshd_config \u5c06 PasswordAuthentication \u8bbe\u7f6e\u4e3a no \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u9632\u706b\u5899\u9632\u706b\u5899\u53ef\u4ee5\u5e2e\u52a9\u8fc7\u6ee4\u548c\u963b\u6b62\u672a\u7ecf\u6388\u6743\u7684\u8fde\u63a5\u3002\u901a\u8fc7\u8bbe\u7f6e\u9002\u5f53\u7684\u89c4\u5219\uff0c\u53ef\u4ee5\u9650\u5236\u5bf9\u7279\u5b9a\u7aef\u53e3\u548cIP\u5730\u5740\u7684\u8bbf\u95ee\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528iptables\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219\u7684\u793a\u4f8b\u4ee3\u7801\uff1a # \u5141\u8bb8\u6240\u6709\u672c\u5730\u8fde\u63a5 iptables -A INPUT -i lo -j ACCEPT # \u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u8fde\u63a5 iptables -A INPUT -m state –state RELATED,ESTABLISHED -j ACCEPT # \u5141\u8bb8SSH\u8fde\u63a5 iptables -A INPUT -p tcp –dport 22 […]<\/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-16924","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/16924","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=16924"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/16924\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=16924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=16924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=16924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}