开放注册一天之后，出现了50多个机器注册的账户（不妨称为“马甲”——实际上，这些用户可能会在评论区发广告）。画面实在太美。
于是根据日志在前端加入了IP封禁，又在登录界面加入了 SI Captcha 验证码，结果在半天之内还是出现了不到10个马甲帐号。我觉得可能是WP的注册机制存在漏洞。不论如何，我又手动加入了个注册验证，不知有没有用。
不过还好，我刚刚才把网站的验证邮件发送功能配置完。也就是说，在此之前注册的所有用户无法完成激活，所以无法发表评论。
然而不知过几天会不会带来更多的广告……
参考资料
- Nginx Block And Deny IP Address OR Network Subnets
- 分享我的 WordPress 垃圾评论 IP 封禁列表
- Stop Forum Spam >> Downloads
以及，以下是我目前使用的黑名单。由于篇幅太长，因此我把它折叠起来了。
deny 104.144.7.21;
deny 108.62.155.42;
deny 136.0.96.223;
deny 151.236.26.153;
deny 172.85.101.222;
deny 172.85.102.158;
deny 172.85.103.242;
deny 173.208.12.81;
deny 176.9.167.166;
deny 185.45.13.132;
deny 188.215.22.18;
deny 188.215.22.22;
deny 195.154.168.130;
deny 205.164.30.186;
# US
deny 205.164.30.36;
deny 23.19.127.54;
deny 23.19.153.176;
deny 23.19.155.170;
deny 23.19.188.152;
deny 23.19.188.184;
deny 23.229.9.24;
deny 23.250.11.122;
deny 23.250.34.48;
deny 23.27.21.19;
deny 37.203.212.118;
deny 45.59.22.174;
deny 45.59.22.220;
deny 45.59.22.41;
deny 45.59.27.160;
deny 45.59.27.36;
deny 45.59.29.93;
deny 46.102.99.253;
deny 46.246.126.146;
deny 5.175.129.136;
deny 5.175.177.218;
deny 94.242.239.81;
deny 94.249.240.45;
# http://cnzhx.net/blog/share-wp-spammers-ip-blacklist/;
deny 1.161.134.251;
deny 1.161.136.215;
deny 1.161.137.60;
deny 1.161.139.145;
deny 1.161.139.158;
deny 1.161.140.56;
deny 1.161.143.15;
deny 1.161.143.140;
deny 1.161.143.163;
deny 1.161.148.244;
deny 1.161.149.162;
deny 12.104.222.17;
deny 14.139.60.213;
deny 15.185.99.30;
deny 23.19.30.0/24;
deny 23.19.68.66;
deny 23.19.127.240;
deny 23.19.152.113;
deny 23.19.229.249;
deny 23.19.229.209;
deny 24.20.149.202;
deny 24.140.47.166;
deny 24.217.35.18;
deny 27.2.0.47;
deny 27.155.43.142;
deny 27.155.122.206;
deny 27.156.97.149;
deny 27.159.0.0/16;
deny 31.3.225.169;
deny 31.184.238.23;
deny 31.184.238.34;
deny 31.187.9.225;
deny 31.214.170.0/24;
deny 31.214.169.0/24;
deny 31.214.133.0/24;
deny 31.214.144.0/24;
deny 31.214.201.251;
deny 31.214.145.239;
deny 31.214.145.236;
deny 37.220.1.114;
deny 37.220.7.250;
deny 37.220.8.82;
deny 37.220.8.122;
deny 41.158.128.190;
deny 41.162.18.35;
deny 41.190.16.17;
deny 42.83.47.5;
# Russian
deny 46.17.96.0/24;
deny 46.17.97.0/24;
deny 46.17.98.0/24;
deny 46.17.99.0/24;
deny 46.17.100.0/24;
deny 46.17.101.107;
deny 46.21.144.176;
deny 46.49.81.17;
deny 46.51.224.252;
deny 46.73.151.11;
deny 46.73.181.4;
deny 46.73.181.109;
deny 46.73.192.36;
deny 46.98.143.96;
deny 46.105.30.42;
deny 46.119.116.4;
deny 46.200.252.147;
deny 46.201.88.22;
deny 46.246.72.201;
deny 46.251.228.99;
deny 46.251.228.224;
deny 46.251.237.178;
deny 46.253.195.122;
deny 49.212.38.134;
deny 49.212.56.71;
deny 50.16.220.94;
deny 50.17.72.168;
deny 59.57.14.76;
deny 50.57.28.248;
deny 50.57.134.15;
deny 58.16.145.71;
deny 58.56.31.117;
deny 58.56.31.123;
deny 58.68.138.200;
deny 58.119.6.196;
deny 58.246.200.114;
deny 59.44.204.198;
deny 59.56.19.86;
deny 59.57.14.70;
deny 59.57.14.91;
deny 59.57.14.121;
deny 59.57.14.123;
deny 59.57.15.89;
deny 59.58.154.113;
deny 59.58.155.150;
deny 59.58.156.78;
deny 59.60.123.88;
deny 59.106.177.23;
deny 59.108.29.183;
deny 59.125.82.23;
deny 60.172.190.163;
deny 60.184.56.41;
deny 60.184.56.84;
deny 60.184.56.241;
deny 60.184.58.17;
deny 60.184.58.119;
deny 60.184.58.236;
deny 60.184.59.9;
deny 60.184.59.209;
deny 60.184.61.3;
deny 60.184.61.43;
deny 60.184.62.67;
deny 60.184.62.157;
deny 60.184.63.26;
deny 61.7.214.42;
deny 61.54.26.44;
deny 61.93.130.39;
deny 61.146.255.137;
deny 61.164.87.130;
deny 61.190.28.166;
deny 61.191.188.177;
deny 62.149.25.80;
deny 66.199.151.206;
deny 66.219.22.151;
deny 67.23.164.15;
deny 67.158.63.124;
deny 67.181.57.251;
deny 67.228.53.122;
deny 68.192.223.159;
deny 69.163.96.2;
deny 69.197.136.84;
deny 69.249.228.179;
deny 69.252.120.90;
deny 70.38.90.214;
deny 70.145.154.212;
deny 71.249.165.73;
deny 72.64.146.73;
deny 72.89.149.175;
deny 74.121.191.74;
deny 74.221.211.129;
deny 74.221.215.204;
deny 75.69.240.240;
deny 75.101.153.212;
deny 75.101.166.8;
deny 75.147.206.177;
deny 76.74.239.152;
deny 76.164.222.35;
deny 76.164.223.77;
deny 77.65.48.239;
deny 77.245.155.29;
deny 77.247.181.163;
deny 77.247.181.165;
deny 78.47.36.187;
deny 78.133.124.146;
deny 79.160.210.36;
deny 79.170.50.0/24;
deny 80.90.151.1;
deny 80.194.50.116;
deny 80.243.181.34;
deny 80.243.191.66;
deny 80.243.191.114;
deny 80.243.191.178;
deny 80.251.133.163;
deny 80.251.133.165;
deny 81.0.104.238;
deny 81.0.254.172;
deny 81.94.192.121;
deny 82.193.117.23;
deny 82.151.208.91;
deny 82.195.232.218;
deny 82.200.55.142;
deny 82.206.136.75;
deny 83.26.95.222;
deny 83.149.126.37;
deny 83.170.100.116;
deny 83.170.113.110;
deny 83.234.218.182;
deny 84.14.203.110;
deny 84.237.33.3;
deny 84.241.38.158;
deny 84.246.226.180;
deny 85.18.238.10;
deny 85.25.95.90;
deny 85.92.159.84;
deny 85.13.128.127;
deny 85.18.238.10;
deny 85.186.176.127;
deny 85.195.138.32;
deny 85.195.138.33;
deny 85.222.91.43;
deny 85.249.47.182;
deny 88.255.54.12;
deny 86.120.31.185;
deny 87.98.177.156;
deny 88.81.213.46;
deny 88.131.67.22;
deny 88.190.24.155;
deny 88.190.26.186;
deny 88.190.33.224;
deny 88.190.241.42;
deny 89.162.67.22;
deny 89.169.1.30;
deny 89.223.34.67;
deny 89.252.58.37;
deny 91.93.132.210;
deny 91.121.66.28;
deny 91.121.156.106;
deny 91.124.1.24;
deny 91.124.155.92;
deny 91.124.250.173;
deny 91.137.155.2;
deny 91.201.64.4;
deny 91.201.64.8;
deny 91.205.248.207;
deny 91.207.6.94;
deny 91.207.7.254;
deny 91.207.8.34;
deny 91.210.106.252;
deny 91.212.226.136;
deny 91.217.178.0/24;
deny 91.224.246.73;
deny 91.224.246.130;
deny 91.224.247.82;
deny 91.237.249.63;
deny 92.113.45.159;
deny 92.243.22.79;
deny 93.78.214.219;
deny 93.95.99.178;
deny 93.166.121.107;
deny 93.182.135.139;
deny 93.182.156.14;
deny 93.182.159.33;
deny 94.24.200.48;
deny 94.41.108.214;
deny 94.181.162.46;
deny 94.181.169.82;
deny 94.228.35.219;
deny 95.31.20.162;
deny 95.31.214.137;
deny 95.31.216.41;
deny 95.65.27.202;
deny 95.211.10.151;
deny 95.211.45.66;
deny 96.44.189.177;
deny 101.255.12.26;
deny 107.22.199.240;
deny 103.22.164.200;
deny 107.20.161.197;
deny 107.22.219.19;
deny 108.62.16.171;
deny 108.62.16.158;
deny 108.62.202.217;
deny 108.171.243.0/24;
deny 109.73.70.98;
deny 109.73.70.114;
deny 109.73.76.45;
deny 109.73.78.98;
deny 109.127.5.38;
deny 109.163.230.189;
deny 109.200.6.202;
deny 109.200.11.251;
deny 109.23.0.0/16;
deny 110.77.193.249;
deny 110.85.4.99;
deny 110.85.72.216;
deny 110.85.75.64;
deny 110.85.100.17;
deny 110.85.104.75;
deny 110.85.106.82;
deny 110.85.106.154;
deny 110.86.165.182;
deny 110.137.253.236;
deny 110.180.86.212;
deny 110.164.3.0/24;
deny 111.85.238.53;
deny 111.85.238.60;
deny 111.85.239.126;
deny 111.85.239.235;
deny 111.93.83.146;
deny 112.101.64.208;
deny 112.197.8.50;
deny 113.34.75.69;
deny 113.53.252.131;
deny 113.84.72.117;
deny 113.106.194.221;
deny 114.255.217.10;
# 貌似是国内地址
deny 115.201.82.19;
deny 115.201.82.128;
deny 115.201.89.40;
deny 115.203.141.148;
deny 115.207.130.249;
deny 115.207.133.86;
deny 115.207.134.19;
deny 115.207.136.195;
deny 115.207.136.142;
deny 115.207.141.17;
deny 115.207.141.55;
deny 115.208.0.0/16;
deny 115.238.232.209;
deny 117.21.225.66;
deny 117.26.107.22;
deny 117.26.118.176;
deny 117.27.138.41;
deny 117.27.138.68;
deny 117.27.138.176;
deny 117.79.235.90;
deny 117.89.213.121;
deny 118.1.75.217;
deny 118.97.69.148;
deny 118.97.209.218;
deny 118.103.35.50;
deny 118.132.86.80;
deny 118.174.132.234;
deny 119.57.77.163;
deny 119.62.128.172;
deny 119.75.23.81;
deny 119.235.54.29;
deny 120.33.244.181;
deny 120.37.208.27;
deny 120.37.210.86;
deny 120.37.210.92;
deny 120.43.4.116;
deny 120.43.7.123;
deny 120.43.21.52;
deny 120.68.104.162;
deny 120.84.15.72;
deny 120.136.26.194;
deny 121.33.190.167;
deny 121.205.90.97;
deny 121.205.247.79;
deny 121.205.248.0/24;
deny 121.243.47.242;
deny 122.142.201.5;
deny 122.142.218.171;
deny 122.155.0.135;
deny 122.194.11.208;
deny 122.205.95.14;
deny 122.225.68.113;
deny 122.225.68.125;
deny 122.226.113.54;
deny 122.252.183.60;
deny 123.62.6.58;
deny 123.65.108.44;
deny 123.97.97.33;
deny 123.97.108.133;
deny 123.97.127.82;
deny 123.127.98.130;
deny 125.21.51.53;
deny 125.88.75.139;
deny 125.89.161.189;
deny 125.91.93.166;
deny 128.204.201.97;
deny 128.204.207.82;
deny 134.255.240.0/24;
deny 173.236.43.2;
deny 140.98.210.233;
deny 141.105.65.156;
deny 142.169.1.233;
deny 146.219.19.160;
deny 146.0.73.231;
deny 146.0.74.103;
deny 146.185.23.179;
deny 149.3.138.34;
deny 164.77.196.78;
deny 164.151.130.232;
deny 168.143.89.90;
deny 168.187.42.100;
deny 173.0.50.204;
deny 173.81.70.126;
deny 173.203.199.45;
deny 173.208.47.47;
deny 173.208.48.237;
deny 173.208.70.198;
deny 173.213.83.0/24;
deny 173.213.90.171;
deny 173.213.113.254;
deny 173.230.133.35;
deny 173.234.19.68;
deny 173.234.165.105;
deny 173.234.177.32;
deny 173.234.183.101;
deny 173.242.124.212;
deny 173.245.71.115;
deny 173.254.216.68;
deny 174.36.133.45;
deny 175.42.90.101;
deny 175.44.30.13;
deny 175.139.208.117;
deny 176.8.88.41;
deny 176.8.90.7;
deny 176.31.18.156;
deny 176.31.103.65;
deny 176.31.248.146;
deny 176.61.140.28;
deny 176.61.140.134;
deny 176.61.141.66;
deny 176.61.143.58;
deny 176.65.164.111;
deny 176.227.198.139;
deny 177.19.134.66;
deny 178.33.53.246;
deny 178.63.199.249;
deny 178.73.221.224;
deny 178.137.82.160;
deny 178.137.160.135;
deny 178.137.160.169;
deny 178.238.232.244;
deny 178.238.232.234;
deny 178.239.58.152;
deny 180.106.75.190;
deny 180.149.53.35;
deny 180.246.115.138;
deny 182.40.72.159;
deny 182.50.8.213;
deny 182.50.64.84;
deny 182.50.64.80;
deny 182.163.72.148;
deny 183.16.202.238;
deny 183.82.97.111;
deny 184.72.217.6;
deny 184.82.226.212;
deny 184.106.139.135;
deny 184.168.67.209;
deny 184.173.123.109;
deny 186.200.55.90;
deny 186.238.48.8;
deny 187.1.172.142;
deny 187.58.200.162;
deny 187.115.172.82;
deny 187.141.81.182;
deny 188.92.75.82;
deny 188.92.75.244;
deny 188.94.163.68;
deny 188.143.232.31;
deny 188.143.232.113;
deny 188.143.232.210;
deny 188.163.69.48;
deny 188.165.90.231;
deny 188.227.162.130;
deny 188.227.166.154;
deny 188.227.177.2;
deny 188.227.181.211;
deny 188.227.183.164;
deny 188.241.127.40;
deny 189.17.169.186;
deny 189.71.188.212;
deny 189.115.141.126;
deny 189.125.212.71;
deny 190.82.105.114;
deny 190.124.251.136;
deny 190.202.87.134;
deny 192.162.100.69;
deny 193.34.144.193;
deny 193.105.210.84;
deny 193.107.16.32;
deny 193.169.86.33;
deny 194.36.161.212;
deny 194.126.14.101;
deny 194.126.21.204;
deny 194.170.28.241;
deny 195.2.240.99;
deny 195.62.25.247;
deny 195.62.25.248;
deny 195.62.25.249;
deny 195.62.25.253;
deny 195.62.25.252;
deny 195.95.210.219;
deny 195.138.88.105;
deny 195.162.69.199;
deny 196.200.80.4;
deny 198.143.138.138;
deny 199.15.118.0/24;
deny 199.15.234.0/24;
deny 199.19.109.13;
deny 199.30.88.151;
deny 199.83.95.205;
deny 199.119.225.29;
deny 199.168.142.166;
deny 200.26.114.230;
deny 200.51.203.200;
deny 200.88.126.20;
deny 200.113.109.74;
deny 200.141.202.162;
deny 200.247.169.179;
deny 200.251.58.190;
deny 201.7.143.34;
deny 201.33.37.6;
deny 201.90.8.115;
deny 202.98.123.126;
deny 202.105.113.132;
deny 202.107.44.108;
deny 202.248.222.8;
deny 203.140.68.134;
deny 203.142.66.199;
deny 203.186.131.38;
deny 204.188.241.226;
deny 204.236.213.168;
deny 205.213.195.70;
deny 206.53.155.87;
deny 208.71.175.223;
deny 208.87.35.195;
deny 208.91.129.157;
deny 208.91.129.217;
deny 210.101.131.231;
deny 210.158.6.201;
deny 210.164.226.243;
deny 210.177.210.61;
deny 211.100.47.147;
deny 212.0.71.195;
deny 212.26.44.100;
deny 212.45.5.172;
deny 212.85.1.28;
deny 212.111.208.2;
deny 212.138.47.15;
deny 212.156.98.206;
deny 213.27.232.210;
deny 213.52.195.238;
deny 213.79.94.21;
deny 213.159.241.41;
deny 213.159.241.60;
deny 213.171.204.157;
deny 213.218.138.20;
deny 213.246.36.90;
deny 213.251.169.115;
deny 216.24.199.58;
deny 216.59.18.23;
deny 216.144.244.146;
deny 216.221.193.246;
deny 216.245.198.202;
deny 217.21.116.18;
deny 217.172.180.18;
deny 217.218.230.71;
deny 218.6.8.19;
deny 218.6.12.0/24;
deny 218.6.15.112;
deny 218.6.16.226;
deny 218.9.55.116;
deny 218.66.250.106;
deny 218.83.175.129;
deny 218.91.151.54;
deny 218.208.97.226;
deny 218.244.180.196;
deny 218.66.250.106;
deny 219.122.38.109;
deny 219.142.12.54;
deny 220.100.93.250;
deny 220.113.9.169;
deny 220.161.150.70;
deny 220.161.150.114;
deny 220.161.150.130;
deny 220.161.154.134;
deny 220.243.7.126;
deny 220.255.2.85;
deny 221.130.162.48;
deny 221.130.162.51;
deny 221.172.79.191;
deny 221.194.177.167;
deny 221.194.179.34;
deny 221.225.215.141;
deny 222.45.72.124;
deny 222.50.56.52;
deny 222.77.224.9;
deny 222.77.224.88;
deny 222.77.226.82;
deny 222.77.227.232;
deny 222.77.228.212;
deny 222.80.22.26;
deny 222.80.24.171;
deny 222.171.60.156;
deny 222.200.180.67;
deny 222.222.38.2;
deny 223.19.105.185;