{"id":655686,"date":"2025-11-18T20:56:55","date_gmt":"2025-11-18T12:56:55","guid":{"rendered":"http:\/\/puo.cn\/?p=655686"},"modified":"2025-11-18T21:02:18","modified_gmt":"2025-11-18T13:02:18","slug":"vps%e5%88%b0%e6%89%8b%e5%90%8e%e8%a6%81%e5%81%9a%e7%9a%84-n-%e9%a1%b9%e4%bc%98%e5%8c%96","status":"publish","type":"post","link":"http:\/\/puo.cn\/?p=655686","title":{"rendered":"VPS\u5230\u624b\u540e\u8981\u505a\u7684 N \u9879\u4f18\u5316"},"content":{"rendered":"

\u524d\u8a00<\/strong><\/h2>\n

\u521a\u62ff\u5230\u4e00\u53f0\u5fc3\u4eeaVPS\u670d\u52a1\u5668\uff0c\u662f\u4e0d\u662f\u5174\u594b\uff1f\u5174\u594b\u8fc7\u540e\uff0c\u6211\u603b\u7ed3\u4e86\u4e00\u4e9b\u4f18\u5316\u9879\u76ee\uff0c\u6309\u7167\u8fd9\u4e2a\u6d41\u7a0b\u64cd\u4f5c\uff0c\u4f60\u7684\u670d\u52a1\u5668\u5c31\u80fd\u4ece”\u88f8\u673a”\u53d8\u6210\u6027\u80fd\u5f3a\u52b2\u3001\u5b89\u5168\u53ef\u9760\u3002<\/p>\n

\u5f00\u59cb\u4f18\u5316\u4e4b\u65c5<\/strong><\/h2>\n

1\ufe0f\u20e3 \u6362\u6e90\u52a0\u901f<\/strong><\/h3>\n

\u64cd\u4f5c\u6b65\u9aa4<\/strong><\/h4>\n

\u9996\u5148\u5907\u4efd\u4e00\u4e0b\u539f\u59cb\u914d\u7f6e\uff0c\u8fd9\u662f\u597d\u4e60\u60ef\uff1a<\/p>\n

\n
# \u5907\u4efd\u539f\u59cb\u6e90\u914d\u7f6e\uff08\u4e07\u4e00\u51fa\u95ee\u9898\u8fd8\u80fd\u6062\u590d\uff09<\/span>\r\ncp \/etc\/apt\/sources.list \/etc\/apt\/sources.list.backup<\/span>\r\n\r\n# \u5b89\u88c5HTTPS\u8bc1\u4e66\u652f\u6301<\/span>\r\napt-get install -y ca-certificates<\/span>\r\n\r\n# \u83b7\u53d6\u7cfb\u7edf\u7248\u672c\u4ee3\u53f7<\/span>\r\nCODENAME=$(lsb_release -cs)<\/span>\r\n<\/code><\/pre>\n
shellscript<\/div>\n
 <\/p>\n<\/div>\n
\u6211\u63a8\u8350\u51e0\u4e2a\u7a33\u5b9a\u7684\u6e90\uff0c\u6309\u4f60\u7684\u7f51\u7edc\u73af\u5883\u9009\u62e9\uff1a<\/p>\n
\u56fd\u5185\u6e90\uff08\u63a8\u8350\u56fd\u5185\u7528\u6237\uff09<\/strong>\uff1a<\/p>\n
    \n
  • \u963f\u91cc\u4e91\u6e90<\/strong>\uff1a\u901f\u5ea6\u5feb\uff0c\u7a33\u5b9a\u6027\u597d\uff0c\u63a8\u8350<\/li>\n
  • \u4e2d\u79d1\u5927\u6e90<\/strong>\uff1a\u6559\u80b2\u7f51\u7528\u6237\u9996\u9009<\/li>\n
  • \u6e05\u534e\u6e90<\/strong>\uff1a\u8001\u724c\u7a33\u5b9a\u6e90<\/li>\n<\/ul>\n
    \u56fd\u5916\u6e90\uff08\u63a8\u8350\u6d77\u5916\u7528\u6237\uff09<\/strong>\uff1a<\/p>\n
      \n
    • \u5b98\u65b9\u6e90<\/strong>\uff1a\u6700\u7a33\u5b9a\uff0c\u4f46\u901f\u5ea6\u53ef\u80fd\u8f83\u6162<\/li>\n
    • \u9999\u6e2f\u6e90<\/strong>\uff1a\u4e9a\u6d32\u5730\u533a\u8bbf\u95ee\u8f83\u5feb<\/li>\n
    • \u65e5\u672c\u6e90<\/strong>\uff1a\u4e1c\u4e9a\u5730\u533a\u8bbf\u95ee\u8f83\u5feb<\/li>\n<\/ul>\n
      \u914d\u7f6e\u56fd\u5185\u6e90\uff08\u63a8\u8350\u56fd\u5185\u7528\u6237\uff09<\/strong><\/h4>\n
      \n
      cat > \/etc\/apt\/sources.list <<EOF<\/span>\r\ndeb http:\/\/mirrors.aliyun.com\/debian\/ ${CODENAME} main contrib non-free non-free-firmware<\/span>\r\ndeb-src http:\/\/mirrors.aliyun.com\/debian\/ ${CODENAME} main contrib non-free non-free-firmware<\/span>\r\ndeb http:\/\/mirrors.aliyun.com\/debian-security ${CODENAME}-security main contrib non-free non-free-firmware<\/span>\r\ndeb-src http:\/\/mirrors.aliyun.com\/debian-security ${CODENAME}-security main contrib non-free non-free-firmware<\/span>\r\ndeb http:\/\/mirrors.aliyun.com\/debian\/ ${CODENAME}-updates main contrib non-free non-free-firmware<\/span>\r\ndeb-src http:\/\/mirrors.aliyun.com\/debian\/ ${CODENAME}-updates main contrib non-free non-free-firmware<\/span>\r\nEOF<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u914d\u7f6e\u56fd\u5916\u6e90\uff08\u63a8\u8350\u6d77\u5916\u7528\u6237\uff09<\/strong><\/h4>\n
      \n
      cat > \/etc\/apt\/sources.list <<EOF<\/span>\r\ndeb https:\/\/deb.debian.org\/debian\/ ${CODENAME} main contrib non-free non-free-firmware<\/span>\r\ndeb-src https:\/\/deb.debian.org\/debian\/ ${CODENAME} main contrib non-free non-free-firmware<\/span>\r\ndeb https:\/\/deb.debian.org\/debian-security ${CODENAME}-security main contrib non-free non-free-firmware<\/span>\r\ndeb-src https:\/\/deb.debian.org\/debian-security ${CODENAME}-security main contrib non-free non-free-firmware<\/span>\r\ndeb https:\/\/deb.debian.org\/debian\/ ${CODENAME}-updates main contrib non-free non-free-firmware<\/span>\r\ndeb-src https:\/\/deb.debian.org\/debian\/ ${CODENAME}-updates main contrib non-free non-free-firmware<\/span>\r\nEOF<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u914d\u7f6e\u5b8c\u6210\u540e\uff0c\u66f4\u65b0\u4e00\u4e0b\u8f6f\u4ef6\u5305\u5217\u8868\uff1a<\/p>\n
      \n
      apt update<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u5982\u679c\u770b\u5230”Get:1″\u8fd9\u6837\u7684\u8f93\u51fa\uff0c\u8bf4\u660e\u6362\u6e90\u6210\u529f\u4e86\uff01\u901f\u5ea6\u5e94\u8be5\u6bd4\u4e4b\u524d\u5feb\u5f88\u591a\u3002<\/p>\n
      2\ufe0f\u20e3 \u8d26\u6237\u5b89\u5168<\/strong><\/h3>\n
      \u8bbe\u7f6e\u5f3a\u5bc6\u7801<\/strong><\/h4>\n
      \u9996\u5148\u7ed9root\u8bbe\u7f6e\u4e00\u4e2a\u5f3a\u5bc6\u7801\uff0c\u522b\u7528123456\u8fd9\u79cd\u5f31\u5bc6\u7801\uff1a<\/p>\n
      \n
      # \u8bbe\u7f6eroot\u5bc6\u7801\uff08\u8bf7\u66ff\u6362\u4e3a\u4f60\u7684\u5f3a\u5bc6\u7801\uff09<\/span>\r\necho \"root:YourStrongPassword123!\" | chpasswd<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u5bc6\u7801\u8981\u6c42<\/strong>\uff1a\u81f3\u5c118\u4f4d\uff0c\u5305\u542b\u5927\u5c0f\u5199\u5b57\u6bcd\u3001\u6570\u5b57\u548c\u7279\u6b8a\u5b57\u7b26\u3002<\/p>\n
      \u521b\u5efa\u666e\u901a\u7528\u6237<\/strong><\/h4>\n
      \u76f4\u63a5\u7528root\u64cd\u4f5c\u662f\u5f88\u5371\u9669\u7684\uff0c\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u666e\u901a\u7528\u6237\uff1a<\/p>\n
      \n
      # \u521b\u5efa\u7528\u6237\uff08\u66ff\u6362username\u4e3a\u4f60\u7684\u7528\u6237\u540d\uff09<\/span>\r\nuseradd -m -s \/bin\/bash username<\/span>\r\n\r\n# \u8bbe\u7f6e\u7528\u6237\u5bc6\u7801<\/span>\r\necho \"username:UserPassword123!\" | chpasswd<\/span>\r\n\r\n# \u7ed9\u7528\u6237sudo\u6743\u9650<\/span>\r\nusermod -aG sudo username<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u8fd9\u6837\u4ee5\u540e\u5c31\u53ef\u4ee5\u7528\u666e\u901a\u7528\u6237\u767b\u5f55\uff0c\u9700\u8981\u7ba1\u7406\u5458\u6743\u9650\u65f6\u7528sudo\u3002<\/p>\n
      \u914d\u7f6eSSH\u5bc6\u94a5\u8ba4\u8bc1<\/strong><\/h4>\n
      \u5bc6\u7801\u767b\u5f55\u867d\u7136\u65b9\u4fbf\uff0c\u4f46SSH\u5bc6\u94a5\u66f4\u5b89\u5168\u3002\u5982\u679c\u4f60\u6709SSH\u5bc6\u94a5\uff0c\u53ef\u4ee5\u8fd9\u6837\u914d\u7f6e\uff1a<\/p>\n
      \n
      # \u521b\u5efaSSH\u76ee\u5f55<\/span>\r\nmkdir -p \/root\/.ssh<\/span>\r\nchmod 700 \/root\/.ssh<\/span>\r\n\r\n# \u6dfb\u52a0\u4f60\u7684\u516c\u94a5\uff08\u8bf7\u66ff\u6362\u4e3a\u4f60\u7684\u5b9e\u9645\u516c\u94a5\uff09<\/span>\r\necho \"\u4f60\u7684SSH\u516c\u94a5\u5185\u5bb9\" > \/root\/.ssh\/authorized_keys<\/span>\r\n\r\n# \u8bbe\u7f6e\u6b63\u786e\u7684\u6743\u9650<\/span>\r\nchmod 600 \/root\/.ssh\/authorized_keys<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u914d\u7f6eSSH\u5bc6\u94a5\u8ba4\u8bc1\u540e\u7684sshd_config\u4fee\u6539<\/strong><\/h4>\n
      \u914d\u7f6e\u5b8cSSH\u5bc6\u94a5\u540e\uff0c\u9700\u8981\u4fee\u6539SSH\u914d\u7f6e\u4ee5\u542f\u7528\u5bc6\u94a5\u8ba4\u8bc1\uff1a<\/p>\n
      \n
      # \u4fee\u6539SSH\u914d\u7f6e\u4ee5\u652f\u6301\u5bc6\u94a5\u8ba4\u8bc1<\/span>\r\nsed -i 's\/^#*PubkeyAuthentication.*\/PubkeyAuthentication yes\/' \/etc\/ssh\/sshd_config<\/span>\r\nsed -i 's\/^#*PasswordAuthentication.*\/PasswordAuthentication yes\/' \/etc\/ssh\/sshd_config<\/span>\r\nsed -i 's\/^#*PermitRootLogin.*\/PermitRootLogin prohibit-password\/' \/etc\/ssh\/sshd_config<\/span>\r\n\r\n# \u786e\u4fdd\u914d\u7f6e\u751f\u6548<\/span>\r\nsystemctl restart ssh<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      3\ufe0f\u20e3 SSH\u5b89\u5168\u52a0\u56fa –<\/strong><\/h3>\n
      SSH\u662f\u670d\u52a1\u5668\u7684\u5165\u53e3\uff0c\u5fc5\u987b\u52a0\u5f3a\u9632\u62a4\uff01<\/p>\n
      \u4fee\u6539SSH\u7aef\u53e3<\/strong><\/h4>\n
      \u9ed8\u8ba4\u768422\u7aef\u53e3\u5c31\u50cf\u5728\u95e8\u4e0a\u8d34\u4e86”\u8bf7\u8fdb”\u7684\u724c\u5b50\uff0c\u6211\u4eec\u6362\u4e2a\u7aef\u53e3\uff1a<\/p>\n
      \n
      # \u5907\u4efdSSH\u914d\u7f6e\uff08\u597d\u4e60\u60ef\uff09<\/span>\r\ncp \/etc\/ssh\/sshd_config \/etc\/ssh\/sshd_config.backup<\/span>\r\n\r\n# \u4fee\u6539SSH\u7aef\u53e3\u4e3a54321\uff08\u4f60\u53ef\u4ee5\u9009\u62e9\u5176\u4ed6\u7aef\u53e3\uff09<\/span>\r\nsed -i 's\/^#*Port .*\/Port 54321\/' \/etc\/ssh\/sshd_config<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u5f3a\u5316SSH\u5b89\u5168\u8bbe\u7f6e<\/strong><\/h4>\n
      \u73b0\u5728\u7ed9SSH\u52a0\u51e0\u9053\u9501\uff1a<\/p>\n
      \n
      # \u914d\u7f6eSSH\u5b89\u5168\u53c2\u6570<\/span>\r\ncat >> \/etc\/ssh\/sshd_config <<EOF<\/span>\r\n\r\n# \u5b89\u5168\u914d\u7f6e<\/span>\r\nPasswordAuthentication yes<\/span>\r\nChallengeResponseAuthentication no<\/span>\r\nPermitRootLogin prohibit-password<\/span>\r\nPubkeyAuthentication yes<\/span>\r\n\r\n# \u767b\u5f55\u9650\u901f\uff08\u9632\u6b62\u66b4\u529b\u7834\u89e3\uff09<\/span>\r\nLoginGraceTime 30<\/span>\r\nMaxAuthTries 3<\/span>\r\n\r\n# \u5b89\u5168\u6a2a\u5e45<\/span>\r\nBanner \/etc\/issue.net<\/span>\r\nEOF<\/span>\r\n\r\n# \u521b\u5efa\u5b89\u5168\u6a2a\u5e45\uff08\u5413\u552c\u4e00\u4e0b\u4e0d\u6000\u597d\u610f\u7684\u4eba\uff09<\/span>\r\necho \"Unauthorized access to this server is prohibited.\" > \/etc\/issue.net<\/span>\r\n\r\n# \u91cd\u542fSSH\u670d\u52a1<\/span>\r\nsystemctl restart ssh<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u6ce8\u610f<\/strong>\uff1a\u4fee\u6539SSH\u7aef\u53e3\u540e\uff0c\u8bb0\u5f97\u7528\u65b0\u7aef\u53e3\u8fde\u63a5\uff1assh -p 54321 root@your-server-ip<\/code><\/p>\n
      4\ufe0f\u20e3 \u9632\u706b\u5899\u914d\u7f6e<\/strong><\/h3>\n
      \u5b89\u88c5nftables<\/strong><\/h4>\n
      \u9ed8\u8ba4\u7684ufw\u9632\u706b\u5899\u529f\u80fd\u6709\u9650\uff0c\u6211\u4eec\u6362\u6210\u66f4\u5f3a\u5927\u7684nftables\uff1a<\/p>\n
      \n
      # \u5378\u8f7dufw\uff08\u5982\u679c\u5b58\u5728\uff09<\/span>\r\nif command -v ufw >\/dev\/null 2>&1; then<\/span>\r\n    ufw --force reset<\/span>\r\n    ufw disable<\/span>\r\n    apt-get purge -y ufw<\/span>\r\nfi<\/span>\r\n\r\n# \u5b89\u88c5nftables<\/span>\r\napt-get install -y nftables<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u914d\u7f6e\u57fa\u7840\u9632\u706b\u5899\u89c4\u5219<\/strong><\/h4>\n
      \u73b0\u5728\u914d\u7f6e\u9632\u706b\u5899\u89c4\u5219\uff0c\u53ea\u5141\u8bb8\u5fc5\u8981\u7684\u6d41\u91cf\u901a\u8fc7\uff1a<\/p>\n
      \n
      # \u521b\u5efanftables\u914d\u7f6e\u6587\u4ef6<\/span>\r\ncat > \/etc\/nftables.conf <<EOF<\/span>\r\n#!\/usr\/sbin\/nft -f<\/span>\r\n\r\nflush ruleset<\/span>\r\n\r\ntable inet filter {<\/span>\r\n    chain input {<\/span>\r\n        type filter hook input priority 0;<\/span>\r\n        policy drop;<\/span>\r\n\r\n        # \u5141\u8bb8\u672c\u5730\u56de\u73af\uff08\u672c\u673a\u8bbf\u95ee\uff09<\/span>\r\n        iif lo accept<\/span>\r\n\r\n        # \u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u8fde\u63a5\uff08\u56de\u590d\u5305\uff09<\/span>\r\n        ct state established,related accept<\/span>\r\n\r\n        # \u5f00\u653eSSH\u7aef\u53e3\uff08\u8bb0\u5f97\u6539\u6210\u4f60\u7684\u7aef\u53e3\uff09<\/span>\r\n        tcp dport 54321 accept<\/span>\r\n        udp dport 54321 accept<\/span>\r\n    }<\/span>\r\n    chain forward {<\/span>\r\n        type filter hook forward priority 0;<\/span>\r\n        policy drop;<\/span>\r\n    }<\/span>\r\n    chain output {<\/span>\r\n        type filter hook output priority 0;<\/span>\r\n        policy accept;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\n# \u6d41\u91cf\u76d1\u63a7\u8868\uff08\u7528\u4e8e\u7edf\u8ba1\uff09<\/span>\r\ntable inet mangle {<\/span>\r\n    chain prerouting {<\/span>\r\n        type filter hook prerouting priority mangle;<\/span>\r\n        policy accept;<\/span>\r\n    }<\/span>\r\n    chain output {<\/span>\r\n        type route hook output priority mangle;<\/span>\r\n        policy accept;<\/span>\r\n    }<\/span>\r\n    chain input {<\/span>\r\n        type filter hook input priority mangle;<\/span>\r\n        policy accept;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\nEOF<\/span>\r\n\r\n# \u542f\u7528\u5e76\u542f\u52a8nftables<\/span>\r\nsystemctl enable nftables<\/span>\r\nsystemctl restart nftables<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u9632\u706b\u5899\u914d\u7f6e\u5b8c\u6210\uff01\u73b0\u5728\u53ea\u6709SSH\u7aef\u53e3\u662f\u5f00\u653e\u7684\uff0c\u5176\u4ed6\u7aef\u53e3\u90fd\u88ab\u5c4f\u853d\u4e86\u3002<\/p>\n
      5\ufe0f\u20e3 \u7cfb\u7edf\u6027\u80fd\u4f18\u5316 – \u8ba9\u670d\u52a1\u5668\u8dd1\u5f97\u66f4\u5feb<\/strong><\/h3>\n
      \u7cfb\u7edf\u53c2\u6570\u8c03\u4f18<\/strong><\/h4>\n
      \n
      # \u521b\u5efa\u7cfb\u7edf\u53c2\u6570\u914d\u7f6e\u6587\u4ef6<\/span>\r\ncat > \/etc\/sysctl.d\/99-custom.conf <<EOF<\/span>\r\n# \u7f51\u7edc\u6027\u80fd\u4f18\u5316<\/span>\r\nnet.ipv4.tcp_congestion_control = bbr<\/span>\r\nnet.core.default_qdisc = fq<\/span>\r\nnet.core.rmem_max = 33554432<\/span>\r\nnet.core.wmem_max = 33554432<\/span>\r\nnet.core.somaxconn = 4096<\/span>\r\nnet.ipv4.tcp_max_syn_backlog = 4096<\/span>\r\nnet.ipv4.tcp_rmem = 4096 1048576 33554432<\/span>\r\nnet.ipv4.tcp_wmem = 4096 1048576 33554432<\/span>\r\nnet.ipv4.tcp_window_scaling = 1<\/span>\r\nnet.ipv4.tcp_adv_win_scale = 1<\/span>\r\nnet.ipv4.tcp_fastopen = 3<\/span>\r\nnet.ipv4.ip_forward = 1<\/span>\r\nnet.ipv6.conf.all.forwarding = 1<\/span>\r\nnet.ipv4.tcp_timestamps = 1<\/span>\r\nnet.ipv4.tcp_sack = 1<\/span>\r\nkernel.panic = 1<\/span>\r\nvm.swappiness = 3<\/span>\r\nEOF<\/span>\r\n\r\n# \u5e94\u7528\u7cfb\u7edf\u53c2\u6570<\/span>\r\nsysctl --system<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u865a\u62df\u5185\u5b58\u914d\u7f6e<\/strong><\/h4>\n
      \u5c0f\u5185\u5b58\u670d\u52a1\u5668\u5fc5\u5907\uff01\u5f53\u7269\u7406\u5185\u5b58\u4e0d\u591f\u65f6\uff0c\u7cfb\u7edf\u4f1a\u4f7f\u7528\u865a\u62df\u5185\u5b58\uff1a<\/p>\n
      \n
      # \u521b\u5efaswap\u6587\u4ef6\uff08\u6839\u636e\u670d\u52a1\u5668\u5185\u5b58\u5927\u5c0f\u8c03\u6574\uff09<\/span>\r\nSWAP_SIZE=2G  # \u5efa\u8bae\u4e3a\u7269\u7406\u5185\u5b58\u76841-2\u500d<\/span>\r\n\r\n# \u521b\u5efaswap\u6587\u4ef6<\/span>\r\nfallocate -l $SWAP_SIZE \/swapfile<\/span>\r\n\r\n# \u8bbe\u7f6e\u6743\u9650<\/span>\r\nchmod 600 \/swapfile<\/span>\r\n\r\n# \u683c\u5f0f\u5316swap\u6587\u4ef6<\/span>\r\nmkswap \/swapfile<\/span>\r\n\r\n# \u542f\u7528swap<\/span>\r\nswapon \/swapfile<\/span>\r\n\r\n# \u6dfb\u52a0\u5230fstab\u5b9e\u73b0\u5f00\u673a\u81ea\u52a8\u6302\u8f7d<\/span>\r\necho \"\/swapfile none swap sw 0 0\" >> \/etc\/fstab<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u5c0f\u8d34\u58eb<\/strong>\uff1a\u5982\u679c\u4f60\u7684\u670d\u52a1\u5668\u5185\u5b58\u5927\u4e8e4GB\uff0c\u53ef\u4ee5\u4e0d\u7528\u914d\u7f6eswap\uff0c\u6216\u8005\u914d\u7f6e1GB\u5c31\u591f\u4e86\u3002<\/p>\n
      6\ufe0f\u20e3 \u65f6\u95f4\u540c\u6b65 – \u8ba9\u670d\u52a1\u5668\u65f6\u95f4\u51c6\u786e<\/strong><\/h3>\n
      \u670d\u52a1\u5668\u65f6\u95f4\u4e0d\u51c6\u786e\u4f1a\u5bfc\u81f4\u5f88\u591a\u95ee\u9898\uff0c\u6bd4\u5982\u65e5\u5fd7\u65f6\u95f4\u9519\u4e71\u3001\u8bc1\u4e66\u9a8c\u8bc1\u5931\u8d25\u7b49\u3002<\/p>\n
      \u8bbe\u7f6e\u65f6\u533a<\/strong><\/h4>\n
      \n
      # \u8bbe\u7f6e\u4e3a\u4e0a\u6d77\u65f6\u533a\uff08\u56fd\u5185\u7528\u6237\uff09<\/span>\r\ntimedatectl set-timezone Asia\/Shanghai<\/span>\r\n\r\n# \u9a8c\u8bc1\u65f6\u533a\u8bbe\u7f6e<\/span>\r\ntimedatectl<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u914d\u7f6eNTP\u65f6\u95f4\u540c\u6b65<\/strong><\/h4>\n
      \u56fd\u5185\u7528\u6237\u63a8\u8350<\/strong>\uff1a<\/p>\n
      \n
      # \u5b89\u88c5\u65f6\u95f4\u540c\u6b65\u670d\u52a1<\/span>\r\napt-get install -y systemd-timesyncd<\/span>\r\n\r\n# \u914d\u7f6e\u56fd\u5185NTP\u670d\u52a1\u5668<\/span>\r\ncat > \/etc\/systemd\/timesyncd.conf <<EOF<\/span>\r\n[Time]<\/span>\r\nNTP=ntp.aliyun.com ntp.ntsc.ac.cn time1.cloud.tencent.com cn.pool.ntp.org<\/span>\r\nFallbackNTP=ntp1.aliyun.com ntp2.aliyun.com time2.cloud.tencent.com<\/span>\r\nEOF<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u6d77\u5916\u7528\u6237\u63a8\u8350<\/strong>\uff1a<\/p>\n
      \n
      # \u914d\u7f6e\u56fd\u9645NTP\u670d\u52a1\u5668<\/span>\r\ncat > \/etc\/systemd\/timesyncd.conf <<EOF<\/span>\r\n[Time]<\/span>\r\nNTP=pool.ntp.org time1.google.com time.apple.com time.cloudflare.com time.windows.com<\/span>\r\nFallbackNTP=0.debian.pool.ntp.org 1.debian.pool.ntp.org 2.debian.pool.ntp.org<\/span>\r\nEOF<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u542f\u7528\u65f6\u95f4\u540c\u6b65<\/strong>\uff1a<\/p>\n
      \n
      # \u542f\u7528\u5e76\u542f\u52a8\u65f6\u95f4\u540c\u6b65\u670d\u52a1<\/span>\r\nsystemctl unmask systemd-timesyncd.service<\/span>\r\nsystemctl enable systemd-timesyncd.service<\/span>\r\nsystemctl restart systemd-timesyncd.service<\/span>\r\ntimedatectl set-ntp yes<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      7\ufe0f\u20e3 \u5b89\u5168\u52a0\u56fa – \u7ed9\u670d\u52a1\u5668\u7a7f\u4e0a\u9632\u5f39\u8863<\/strong><\/h3>\n
      \u5b89\u88c5Fail2Ban\u9632\u66b4\u529b\u7834\u89e3<\/strong><\/h4>\n
      Fail2Ban\u5c31\u50cf\u4e00\u4e2a\u667a\u80fd\u95e8\u536b\uff0c\u53d1\u73b0\u6709\u4eba\u5c1d\u8bd5\u66b4\u529b\u7834\u89e3\u5c31\u81ea\u52a8\u5c01IP\uff1a<\/p>\n
      \n
      # \u5b89\u88c5Fail2Ban<\/span>\r\napt-get install -y fail2ban<\/span>\r\n\r\n# \u914d\u7f6eSSH\u4fdd\u62a4<\/span>\r\ncat > \/etc\/fail2ban\/jail.d\/sshd.local <<EOF<\/span>\r\n[sshd]<\/span>\r\nenabled = true<\/span>\r\nport = 54321<\/span>\r\nfilter = sshd<\/span>\r\nlogpath = \/var\/log\/auth.log<\/span>\r\nmaxretry = 5<\/span>\r\nfindtime = 10m<\/span>\r\nbantime = 30m<\/span>\r\nbackend = systemd<\/span>\r\nEOF<\/span>\r\n\r\n# \u542f\u52a8Fail2Ban<\/span>\r\nsystemctl enable --now fail2ban<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u6548\u679c<\/strong>\uff1a\u5982\u679c\u6709\u4eba5\u6b21\u5bc6\u7801\u9519\u8bef\uff0cIP\u4f1a\u88ab\u5c0130\u5206\u949f\u3002<\/p>\n
      \u914d\u7f6e\u81ea\u52a8\u5b89\u5168\u66f4\u65b0<\/strong><\/h4>\n
      \u8ba9\u7cfb\u7edf\u81ea\u52a8\u5b89\u88c5\u5b89\u5168\u8865\u4e01\uff0c\u7701\u5fc3\u53c8\u5b89\u5168\uff1a<\/p>\n
      \n
      # \u5b89\u88c5\u81ea\u52a8\u66f4\u65b0\u5de5\u5177<\/span>\r\napt-get install -y unattended-upgrades<\/span>\r\n\r\n# \u914d\u7f6e\u81ea\u52a8\u66f4\u65b0<\/span>\r\ndpkg-reconfigure -plow unattended-upgrades<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      ICMP Ping\u63a7\u5236\uff08\u53ef\u9009\uff09<\/strong><\/h4>\n
      \u5982\u679c\u4f60\u4e0d\u60f3\u8ba9\u522b\u4ebaping\u4f60\u7684\u670d\u52a1\u5668\uff1a<\/p>\n
      \n
      # \u7981\u7528Ping\uff08\u53ef\u9009\uff09<\/span>\r\ncat > \/etc\/sysctl.d\/99-vpsbox-icmp.conf <<EOF<\/span>\r\nnet.ipv4.icmp_echo_ignore_all = 1<\/span>\r\nEOF<\/span>\r\n\r\n# \u5e94\u7528\u8bbe\u7f6e<\/span>\r\nsysctl -w net.ipv4.icmp_echo_ignore_all=1<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u6ce8\u610f<\/strong>\uff1a\u7981\u7528ping\u540e\uff0c\u4f60\u81ea\u5df1\u4e5fping\u4e0d\u4e86\u5916\u7f51\u4e86\uff0c\u4f46\u4e0d\u4f1a\u5f71\u54cd\u6b63\u5e38\u7f51\u7edc\u4f7f\u7528\u3002<\/p>\n
      8\ufe0f\u20e3 \u7cfb\u7edf\u6e05\u7406<\/strong><\/h3>\n
      \n
      # \u6e05\u7406\u8f6f\u4ef6\u5305\u7f13\u5b58<\/span>\r\napt-get clean<\/span>\r\napt-get autoremove -y<\/span>\r\napt-get autoclean<\/span>\r\n\r\n# \u6e05\u7406\u65e5\u5fd7\u6587\u4ef6<\/span>\r\nfind \/var\/log -type f -name \"*.gz\" -delete<\/span>\r\nfind \/var\/log -type f -name \"*.old\" -delete<\/span>\r\nfind \/var\/log -type f -name \"*.1\" -delete<\/span>\r\njournalctl --vacuum-time=7d<\/span>\r\n\r\n# \u6e05\u7406\u4e34\u65f6\u6587\u4ef6<\/span>\r\nfind \/tmp -type f -atime +7 -delete<\/span>\r\nfind \/var\/tmp -type f -atime +7 -delete<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \ud83c\udf89 \u9a8c\u8bc1\u4e00\u4e0b<\/strong><\/h2>\n
      \u68c0\u67e5SSH\u8fde\u63a5<\/strong><\/h3>\n
      \n
      # \u4f7f\u7528\u65b0\u7aef\u53e3\u6d4b\u8bd5SSH\u8fde\u63a5<\/span>\r\nssh -p 54321 root@your-server-ip<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u68c0\u67e5\u9632\u706b\u5899\u72b6\u6001<\/strong><\/h3>\n
      \n
      # \u67e5\u770bnftables\u89c4\u5219<\/span>\r\nnft list ruleset<\/span>\r\n\r\n# \u68c0\u67e5\u9632\u706b\u5899\u670d\u52a1\u72b6\u6001<\/span>\r\nsystemctl status nftables<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u68c0\u67e5\u7cfb\u7edf\u72b6\u6001<\/strong><\/h3>\n
      \n
      # \u67e5\u770b\u7cfb\u7edf\u8d44\u6e90\u4f7f\u7528<\/span>\r\nfree -h<\/span>\r\ndf -h<\/span>\r\nuptime<\/span>\r\n\r\n# \u67e5\u770b\u7f51\u7edc\u8fde\u63a5<\/span>\r\nss -tuln<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u68c0\u67e5\u5b89\u5168\u914d\u7f6e<\/strong><\/h3>\n
      \n
      # \u67e5\u770bFail2Ban\u72b6\u6001<\/span>\r\nfail2ban-client status<\/span>\r\n\r\n# \u67e5\u770bSSH\u914d\u7f6e<\/span>\r\nsshd -T | grep -E \"port|password|permitroot\"<\/span>\r\n<\/code><\/pre>\n
      shellscript<\/div>\n
       <\/p>\n<\/div>\n
      \u26a0\ufe0f \u91cd\u8981\u63d0\u9192<\/strong><\/h2>\n
        \n
      1. \u5907\u4efd\u914d\u7f6e<\/strong>\uff1a\u4fee\u6539\u524d\u4e00\u5b9a\u8981\u5907\u4efd\uff0c\u8fd9\u662f\u8840\u7684\u6559\u8bad\uff01<\/li>\n
      2. \u6d4b\u8bd5\u8fde\u63a5<\/strong>\uff1a\u6539SSH\u7aef\u53e3\u540e\uff0c\u8bb0\u5f97\u7528\u65b0\u7aef\u53e3\u8fde\u63a5<\/li>\n
      3. \u9632\u706b\u5899\u89c4\u5219<\/strong>\uff1a\u65b0\u5f00\u670d\u52a1\u7aef\u53e3\u65f6\uff0c\u8bb0\u5f97\u5728\u9632\u706b\u5899\u4e2d\u5f00\u653e<\/li>\n
      4. \u5b9a\u671f\u66f4\u65b0<\/strong>\uff1a\u6bcf\u5468\u6267\u884c\u00a0apt update && apt upgrade<\/code><\/li>\n
      5. \u76d1\u63a7\u65e5\u5fd7<\/strong>\uff1a\u5b9a\u671f\u68c0\u67e5\u65e5\u5fd7\uff0c\u53d1\u73b0\u95ee\u9898\u53ca\u65f6\u5904\u7406<\/li>\n<\/ol>\n
        \ud83d\udd27 \u65e5\u5e38\u7ef4\u62a4\u5efa\u8bae<\/strong><\/h2>\n
          \n
        1. \u6bcf\u5468\u66f4\u65b0<\/strong>\uff1aapt update && apt upgrade<\/code><\/li>\n
        2. \u76d1\u63a7\u8d44\u6e90<\/strong>\uff1a\u7528\u00a0htop<\/code>\u3001iotop<\/code>\u00a0\u76d1\u63a7\u7cfb\u7edf\u72b6\u6001<\/li>\n
        3. \u6e05\u7406\u65e5\u5fd7<\/strong>\uff1a\u5b9a\u671f\u6e05\u7406\u65e5\u5fd7\u6587\u4ef6\uff0c\u907f\u514d\u78c1\u76d8\u6ee1<\/li>\n
        4. \u5b89\u5168\u68c0\u67e5<\/strong>\uff1a\u5b9a\u671f\u68c0\u67e5\u7528\u6237\u6743\u9650\u548cSSH\u5bc6\u94a5<\/li>\n
        5. \u5907\u4efd\u6570\u636e<\/strong>\uff1a\u91cd\u8981\u6570\u636e\u4e00\u5b9a\u8981\u5b9a\u671f\u5907\u4efd<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"
          \u524d\u8a00 \u521a\u62ff\u5230\u4e00\u53f0\u5fc3\u4eeaVPS\u670d\u52a1\u5668\uff0c\u662f\u4e0d\u662f\u5174\u594b\uff1f\u5174\u594b\u8fc7\u540e\uff0c\u6211\u603b\u7ed3\u4e86\u4e00\u4e9b\u4f18\u5316\u9879\u76ee\uff0c\u6309\u7167\u8fd9\u4e2a\u6d41\u7a0b\u64cd\u4f5c\uff0c\u4f60\u7684\u670d\u52a1\u5668\u5c31\u80fd\u4ece”\u88f8\u673a”\u53d8\u6210\u6027\u80fd\u5f3a\u52b2\u3001\u5b89\u5168\u53ef\u9760\u3002 \u5f00\u59cb\u4f18\u5316\u4e4b\u65c5 1\ufe0f\u20e3 \u6362\u6e90\u52a0\u901f \u64cd\u4f5c\u6b65\u9aa4 \u9996\u5148\u5907\u4efd\u4e00\u4e0b\u539f\u59cb\u914d\u7f6e\uff0c\u8fd9\u662f\u597d…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[128],"tags":[949,950,847],"topic":[],"class_list":["post-655686","post","type-post","status-publish","format-standard","hentry","category-128","tag-apt","tag-etc","tag-vps"],"_links":{"self":[{"href":"http:\/\/puo.cn\/index.php?rest_route=\/wp\/v2\/posts\/655686","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/puo.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/puo.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/puo.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/puo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=655686"}],"version-history":[{"count":2,"href":"http:\/\/puo.cn\/index.php?rest_route=\/wp\/v2\/posts\/655686\/revisions"}],"predecessor-version":[{"id":655688,"href":"http:\/\/puo.cn\/index.php?rest_route=\/wp\/v2\/posts\/655686\/revisions\/655688"}],"wp:attachment":[{"href":"http:\/\/puo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=655686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/puo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=655686"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/puo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=655686"},{"taxonomy":"topic","embeddable":true,"href":"http:\/\/puo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftopic&post=655686"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}