{"id":15560,"date":"2024-11-18T13:06:34","date_gmt":"2024-11-18T05:06:34","guid":{"rendered":"https:\/\/fwq.ai\/blog\/15560\/"},"modified":"2024-11-18T13:06:34","modified_gmt":"2024-11-18T05:06:34","slug":"%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3linux%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%b8%8a%e7%9a%84ssh%e8%bf%9e%e6%8e%a5%e4%b8%ad%e6%96%ad%e5%92%8c%e6%8b%92%e7%bb%9d%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/15560\/","title":{"rendered":"\u5982\u4f55\u89e3\u51b3Linux\u670d\u52a1\u5668\u4e0a\u7684SSH\u8fde\u63a5\u4e2d\u65ad\u548c\u62d2\u7edd\u95ee\u9898"},"content":{"rendered":"

\u5982\u4f55\u89e3\u51b3linux\u670d\u52a1\u5668\u4e0a\u7684ssh\u8fde\u63a5\u4e2d\u65ad\u548c\u62d2\u7edd\u95ee\u9898<\/p>\n

\u5728\u65e5\u5e38\u7684\u8fd0\u7ef4\u5de5\u4f5c\u4e2d\uff0c\u4f7f\u7528SSH\uff08Secure Shell\uff09\u8fdb\u884c\u8fdc\u7a0b\u8fde\u63a5\u662f\u975e\u5e38\u5e38\u89c1\u7684\u64cd\u4f5c\u3002\u5c3d\u7ba1SSH\u662f\u4e00\u79cd\u5b89\u5168\u53ef\u9760\u7684\u534f\u8bae\uff0c\u4f46\u6709\u65f6\u4ecd\u7136\u4f1a\u9047\u5230\u8fde\u63a5\u4e2d\u65ad\u548c\u62d2\u7edd\u7684\u95ee\u9898\u3002\u8fd9\u4e9b\u95ee\u9898\u53ef\u80fd\u7531\u4e8e\u5404\u79cd\u539f\u56e0\u5f15\u8d77\uff0c\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u89c1\u7684\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n

    \n
  1. \u68c0\u67e5\u7f51\u7edc\u8fde\u63a5
    \u9996\u5148\uff0c\u786e\u8ba4\u670d\u52a1\u5668\u548c\u672c\u5730\u673a\u5668\u4e4b\u95f4\u7684\u7f51\u7edc\u8fde\u63a5\u662f\u5426\u6b63\u5e38\u3002\u53ef\u4ee5\u901a\u8fc7ping\u547d\u4ee4\u6765\u6d4b\u8bd5\u670d\u52a1\u5668\u7684\u53ef\u8fbe\u6027\u3002\u5982\u679c\u670d\u52a1\u5668\u65e0\u6cd5ping\u901a\uff0c\u5219\u8bf4\u660e\u7f51\u7edc\u8fde\u63a5\u5b58\u5728\u95ee\u9898\uff0c\u53ef\u4ee5\u68c0\u67e5\u670d\u52a1\u5668\u4e0e\u8def\u7531\u5668\u4e4b\u95f4\u7684\u8fde\u63a5\uff0c\u6216\u8054\u7cfb\u7f51\u7edc\u7ba1\u7406\u5458\u89e3\u51b3\u7f51\u7edc\u95ee\u9898\u3002<\/li>\n
  2. \n

    \u68c0\u67e5SSH\u670d\u52a1\u662f\u5426\u8fd0\u884c
    SSH\u8fde\u63a5\u95ee\u9898\u53ef\u80fd\u662f\u7531\u4e8eSSH\u670d\u52a1\u6ca1\u6709\u6b63\u5e38\u8fd0\u884c\u6240\u81f4\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5SSH\u670d\u52a1\u7684\u72b6\u6001\uff1a<\/p>\n

    systemctl status sshd<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5982\u679cSSH\u670d\u52a1\u672a\u8fd0\u884c\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u542f\u52a8\u5b83\uff1a<\/p>\n
    systemctl start sshd<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/li>\n
  3. \u68c0\u67e5SSH\u914d\u7f6e\u6587\u4ef6
    SSH\u8fde\u63a5\u95ee\u9898\u8fd8\u53ef\u80fd\u4e0e\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684\u9519\u8bef\u8bbe\u7f6e\u76f8\u5173\u3002\u53ef\u4ee5\u4f7f\u7528\u6587\u672c\u7f16\u8f91\u5668\u6253\u5f00SSH\u914d\u7f6e\u6587\u4ef6\u8fdb\u884c\u68c0\u67e5\u3002\u5728\u5927\u591a\u6570Linux\u53d1\u884c\u7248\u4e0a\uff0cSSH\u914d\u7f6e\u6587\u4ef6\u4f4d\u4e8e\/etc\/ssh\/sshd_config\u3002\u786e\u4fdd\u4ee5\u4e0b\u8bbe\u7f6e\u6b63\u786e\uff1a<\/li>\n
  4. Port\u8bbe\u7f6e\u4e3a\u6b63\u786e\u7684\u7aef\u53e3\u53f7\uff0c\u9ed8\u8ba4\u4e3a22\u3002<\/li>\n
  5. PermitRootLogin\u8bbe\u7f6e\u4e3ayes\uff0c\u5141\u8bb8root\u7528\u6237\u767b\u5f55\uff08\u5982\u679c\u5fc5\u8981\uff09\u3002<\/li>\n
  6. AllowUsers\u8bbe\u7f6e\u4e3a\u6b63\u786e\u7684\u5141\u8bb8\u767b\u5f55\u7684\u7528\u6237\u5217\u8868\u3002<\/li>\n<\/ol>\n
    \u5982\u679c\u4fee\u6539\u4e86\u914d\u7f6e\u6587\u4ef6\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u91cd\u542fSSH\u670d\u52a1\u4ee5\u4f7f\u914d\u7f6e\u751f\u6548\uff1a<\/p>\n
    systemctl restart sshd<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \n
    1. \n
      \u9632\u706b\u5899\u8bbe\u7f6e
      \u9632\u706b\u5899\u53ef\u80fd\u4f1a\u963b\u6b62SSH\u8fde\u63a5\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5\u9632\u706b\u5899\u7684\u72b6\u6001\uff1a<\/p>\n
      systemctl status firewalld<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u5982\u679c\u9632\u706b\u5899\u6b63\u5728\u8fd0\u884c\uff0c\u5219\u9700\u8981\u5141\u8bb8SSH\u6d41\u91cf\u901a\u8fc7\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5f00\u542fSSH\u670d\u52a1\u7684\u7aef\u53e3\uff1a<\/p>\n
      firewall-cmd --permanent --add-service=ssh\nfirewall-cmd --reload<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u8bf7\u6ce8\u610f\uff0c\u5177\u4f53\u7684\u9632\u706b\u5899\u547d\u4ee4\u53ef\u80fd\u56e0\u4e0d\u540c\u7684Linux\u53d1\u884c\u7248\u800c\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<\/li>\n
    2. \u68c0\u67e5SSH\u5bc6\u94a5
      SSH\u8fde\u63a5\u95ee\u9898\u8fd8\u53ef\u80fd\u4e0e\u5bc6\u94a5\u6709\u5173\u3002\u5728\u672c\u5730\u673a\u5668\u4e0a\uff0c\u9700\u8981\u4f7f\u7528\u5408\u9002\u7684\u79c1\u94a5\u6765\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u3002\u786e\u4fdd\u79c1\u94a5\u662f\u5426\u6b63\u786e\uff0c\u5e76\u4e14\u4e0e\u670d\u52a1\u5668\u4e0a\u7684\u516c\u94a5\u5339\u914d\u3002\u5982\u679c\u79c1\u94a5\u635f\u574f\u6216\u4e22\u5931\uff0c\u53ef\u4ee5\u91cd\u65b0\u751f\u6210SSH\u5bc6\u94a5\u5bf9\uff0c\u5e76\u5c06\u516c\u94a5\u590d\u5236\u5230\u670d\u52a1\u5668\u4e0a\u3002<\/li>\n
    3. \n
      \u68c0\u67e5\u767b\u5f55\u6743\u9650
      SSH\u8fde\u63a5\u95ee\u9898\u8fd8\u53ef\u80fd\u4e0e\u767b\u5f55\u6743\u9650\u6709\u5173\u3002\u786e\u4fdd\u672c\u5730\u673a\u5668\u4e0a\u7684\u7528\u6237\u5177\u6709\u6b63\u786e\u7684\u767b\u5f55\u6743\u9650\u3002\u53ef\u4ee5\u5728\u670d\u52a1\u5668\u4e0a\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u7528\u6237\u7684\u767b\u5f55\u6743\u9650\uff1a<\/p>\n
      cat \/etc\/passwd | grep username<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u786e\u4fdd\u7528\u6237\u7684\u767b\u5f55Shell\u8bbe\u7f6e\u4e3a\u53ef\u6267\u884c\u7684Shell\uff0c\u5982\/bin\/bash\u3002<\/p>\n<\/li>\n
    4. \n
      \u68c0\u67e5\u670d\u52a1\u5668\u8d1f\u8f7d
      \u670d\u52a1\u5668\u8d1f\u8f7d\u8fc7\u9ad8\u53ef\u80fd\u5bfc\u81f4SSH\u8fde\u63a5\u88ab\u62d2\u7edd\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u670d\u52a1\u5668\u8d1f\u8f7d\uff1a<\/p>\n
      uptime<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u5982\u679c\u8d1f\u8f7d\u8fc7\u9ad8\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u4f7f\u7528\u4e00\u4e9b\u9002\u5f53\u7684\u65b9\u6cd5\u6765\u51cf\u8f7b\u8d1f\u8f7d\uff0c\u5982\u505c\u6b62\u4e00\u4e9b\u5360\u7528CPU\u8d44\u6e90\u8f83\u591a\u7684\u8fdb\u7a0b\u3002<\/p>\n<\/li>\n<\/ol>\n
      \u603b\u7ed3\uff1a
      \u5728\u89e3\u51b3Linux\u670d\u52a1\u5668\u4e0a\u7684SSH\u8fde\u63a5\u4e2d\u65ad\u548c\u62d2\u7edd\u95ee\u9898\u65f6\uff0c\u9996\u5148\u9700\u8981\u68c0\u67e5\u7f51\u7edc\u8fde\u63a5\u548cSSH\u670d\u52a1\u72b6\u6001\u3002\u540c\u65f6\uff0c\u8fd8\u5e94\u68c0\u67e5SSH\u914d\u7f6e\u6587\u4ef6\u3001\u9632\u706b\u5899\u8bbe\u7f6e\u3001SSH\u5bc6\u94a5\u3001\u767b\u5f55\u6743\u9650\u4ee5\u53ca\u670d\u52a1\u5668\u8d1f\u8f7d\u7b49\u56e0\u7d20\uff0c\u786e\u4fdd\u8fd9\u4e9b\u8bbe\u7f6e\u90fd\u7b26\u5408\u8981\u6c42\u3002\u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u5feb\u5730\u89e3\u51b3SSH\u8fde\u63a5\u95ee\u9898\uff0c\u4ece\u800c\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n
      \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u89e3\u51b3Linux\u670d\u52a1\u5668\u4e0a\u7684SSH\u8fde\u63a5\u4e2d\u65ad\u548c\u62d2\u7edd\u95ee\u9898\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":"
      \u5982\u4f55\u89e3\u51b3linux\u670d\u52a1\u5668\u4e0a\u7684ssh\u8fde\u63a5\u4e2d\u65ad\u548c\u62d2\u7edd\u95ee\u9898 \u5728\u65e5\u5e38\u7684\u8fd0\u7ef4\u5de5\u4f5c\u4e2d\uff0c\u4f7f\u7528SSH\uff08Secure Shell\uff09\u8fdb\u884c\u8fdc\u7a0b\u8fde\u63a5\u662f\u975e\u5e38\u5e38\u89c1\u7684\u64cd\u4f5c\u3002\u5c3d\u7ba1SSH\u662f\u4e00\u79cd\u5b89\u5168\u53ef\u9760\u7684\u534f\u8bae\uff0c\u4f46\u6709\u65f6\u4ecd\u7136\u4f1a\u9047\u5230\u8fde\u63a5\u4e2d\u65ad\u548c\u62d2\u7edd\u7684\u95ee\u9898\u3002\u8fd9\u4e9b\u95ee\u9898\u53ef\u80fd\u7531\u4e8e\u5404\u79cd\u539f\u56e0\u5f15\u8d77\uff0c\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u89c1\u7684\u89e3\u51b3\u65b9\u6cd5\u3002 \u68c0\u67e5\u7f51\u7edc\u8fde\u63a5\u9996\u5148\uff0c\u786e\u8ba4\u670d\u52a1\u5668\u548c\u672c\u5730\u673a\u5668\u4e4b\u95f4\u7684\u7f51\u7edc\u8fde\u63a5\u662f\u5426\u6b63\u5e38\u3002\u53ef\u4ee5\u901a\u8fc7ping\u547d\u4ee4\u6765\u6d4b\u8bd5\u670d\u52a1\u5668\u7684\u53ef\u8fbe\u6027\u3002\u5982\u679c\u670d\u52a1\u5668\u65e0\u6cd5ping\u901a\uff0c\u5219\u8bf4\u660e\u7f51\u7edc\u8fde\u63a5\u5b58\u5728\u95ee\u9898\uff0c\u53ef\u4ee5\u68c0\u67e5\u670d\u52a1\u5668\u4e0e\u8def\u7531\u5668\u4e4b\u95f4\u7684\u8fde\u63a5\uff0c\u6216\u8054\u7cfb\u7f51\u7edc\u7ba1\u7406\u5458\u89e3\u51b3\u7f51\u7edc\u95ee\u9898\u3002 \u68c0\u67e5SSH\u670d\u52a1\u662f\u5426\u8fd0\u884cSSH\u8fde\u63a5\u95ee\u9898\u53ef\u80fd\u662f\u7531\u4e8eSSH\u670d\u52a1\u6ca1\u6709\u6b63\u5e38\u8fd0\u884c\u6240\u81f4\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5SSH\u670d\u52a1\u7684\u72b6\u6001\uff1a systemctl status sshd \u767b\u5f55\u540e\u590d\u5236 \u5982\u679cSSH\u670d\u52a1\u672a\u8fd0\u884c\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u542f\u52a8\u5b83\uff1a systemctl start sshd \u767b\u5f55\u540e\u590d\u5236 \u68c0\u67e5SSH\u914d\u7f6e\u6587\u4ef6SSH\u8fde\u63a5\u95ee\u9898\u8fd8\u53ef\u80fd\u4e0e\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684\u9519\u8bef\u8bbe\u7f6e\u76f8\u5173\u3002\u53ef\u4ee5\u4f7f\u7528\u6587\u672c\u7f16\u8f91\u5668\u6253\u5f00SSH\u914d\u7f6e\u6587\u4ef6\u8fdb\u884c\u68c0\u67e5\u3002\u5728\u5927\u591a\u6570Linux\u53d1\u884c\u7248\u4e0a\uff0cSSH\u914d\u7f6e\u6587\u4ef6\u4f4d\u4e8e\/etc\/ssh\/sshd_config\u3002\u786e\u4fdd\u4ee5\u4e0b\u8bbe\u7f6e\u6b63\u786e\uff1a Port\u8bbe\u7f6e\u4e3a\u6b63\u786e\u7684\u7aef\u53e3\u53f7\uff0c\u9ed8\u8ba4\u4e3a22\u3002 PermitRootLogin\u8bbe\u7f6e\u4e3ayes\uff0c\u5141\u8bb8root\u7528\u6237\u767b\u5f55\uff08\u5982\u679c\u5fc5\u8981\uff09\u3002 AllowUsers\u8bbe\u7f6e\u4e3a\u6b63\u786e\u7684\u5141\u8bb8\u767b\u5f55\u7684\u7528\u6237\u5217\u8868\u3002 \u5982\u679c\u4fee\u6539\u4e86\u914d\u7f6e\u6587\u4ef6\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u91cd\u542fSSH\u670d\u52a1\u4ee5\u4f7f\u914d\u7f6e\u751f\u6548\uff1a systemctl restart sshd \u767b\u5f55\u540e\u590d\u5236 \u9632\u706b\u5899\u8bbe\u7f6e\u9632\u706b\u5899\u53ef\u80fd\u4f1a\u963b\u6b62SSH\u8fde\u63a5\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5\u9632\u706b\u5899\u7684\u72b6\u6001\uff1a systemctl status firewalld \u767b\u5f55\u540e\u590d\u5236 \u5982\u679c\u9632\u706b\u5899\u6b63\u5728\u8fd0\u884c\uff0c\u5219\u9700\u8981\u5141\u8bb8SSH\u6d41\u91cf\u901a\u8fc7\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5f00\u542fSSH\u670d\u52a1\u7684\u7aef\u53e3\uff1a firewall-cmd –permanent –add-service=ssh firewall-cmd –reload \u767b\u5f55\u540e\u590d\u5236 \u8bf7\u6ce8\u610f\uff0c\u5177\u4f53\u7684\u9632\u706b\u5899\u547d\u4ee4\u53ef\u80fd\u56e0\u4e0d\u540c\u7684Linux\u53d1\u884c\u7248\u800c\u6709\u6240\u4e0d\u540c\u3002 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