Here is the body of a host.deny file from my current host:
# /etc/hosts.deny: list of hosts that are _not_ allowed to access the system. # See the manual pages hosts_access(5), hosts_options(5) # # # Example: ALL: some.host.name, .some.domain # ALL EXCEPT in.fingerd: other.host.name, .other.domain # # If you're going to protect the portmapper use the name "portmap" for the # daemon name. Remember that you can only use the keyword "ALL" and IP # addresses (NOT host or domain names) for the portmapper. See portmap(8) # for further information. # # The PARANOID wildcard matches any host whose name does not match its # address. You may wish to enable this to ensure any programs that don't # validate looked up hostnames still leave understandable logs. In past # versions of Debian this has been the default. # in.talkd: ALL in.ntalkd: ALL # # Alltime-Blacklist: ALL: 190.152.99.19 # Hosts from blacklist 1 with 604800 seconds penalty ALL: 223.5.23.55 ALL: 223.4.208.56 ALL: 223.223.156.8 ALL: 223.223.156.6 ALL: 223.223.156.4 ALL: 223.204.241.96 ALL: 223.204.226.90 ALL: 223.204.110.97 ALL: 222.73.219.158 ALL: 222.73.182.218 ALL: 222.73.182.187 ALL: 222.68.193.150 ALL: 222.66.166.249 ALL: 222.37.135.2 ALL: 222.33.40.139 ALL: 222.240.161.179 ALL: 222.234.2.49 ALL: 222.223.155.105 ALL: 222.211.93.82 ALL: 222.211.93.81 ALL: 222.211.88.108 ALL: 222.211.74.82 ALL: 222.173.194.34 ALL: 222.128.48.222 ALL: 221.7.214.98 ALL: 221.234.43.137 ALL: 221.207.12.159 ALL: 221.11.63.186 ALL: 220.225.237.146 ALL: 220.194.48.231 ALL: 220.194.201.208 ALL: 220.164.144.135 ALL: 220.161.148.178 ALL: 219.237.194.114 ALL: 219.160.169.15 ALL: 219.148.203.3 ALL: 219.146.225.147 ALL: 219.131.173.42 ALL: 219.121.208.158 ALL: 218.94.149.83 ALL: 218.94.104.189 ALL: 218.75.139.58 ALL: 218.75.139.24 ALL: 218.73.94.248 ALL: 218.70.66.134 ALL: 218.65.103.253 ALL: 218.48.98.43 ALL: 218.28.0.215 ALL: 218.26.89.179 ALL: 218.206.27.9 ALL: 218.206.166.195 ALL: 218.16.120.141 ALL: 218.108.249.44 ALL: 218.108.236.120 ALL: 218.108.232.20 ALL: 218.108.224.80 ALL: 218.104.145.18 ALL: 217.98.80.5 ALL: 217.160.16.156 ALL: 217.16.95.54 ALL: 217.146.76.238 ALL: 217.125.104.154 ALL: 216.245.197.212 ALL: 216.196.227.196 ALL: 216.19.223.55 ALL: 213.80.127.210 ALL: 213.215.191.170 ALL: 213.178.202.137 ALL: 213.135.245.254 ALL: 212.92.194.5 ALL: 212.81.215.74 ALL: 212.235.9.44 ALL: 212.235.9.35 ALL: 212.2.195.181 ALL: 212.115.229.66 ALL: 211.99.208.25 ALL: 211.71.30.130 ALL: 211.71.233.2 ALL: 211.66.184.87 ALL: 211.63.15.201 ALL: 211.55.69.169 ALL: 211.38.137.44 ALL: 211.242.211.15 ALL: 211.236.233.8 ALL: 211.227.67.205 ALL: 211.160.32.186 ALL: 211.157.105.225 ALL: 211.155.230.219 ALL: 211.137.33.74 ALL: 210.86.128.177 ALL: 210.7.76.130 ALL: 210.42.159.37 ALL: 210.211.101.112 ALL: 210.205.55.227 ALL: 210.202.82.186 ALL: 210.19.13.203 ALL: 210.16.202.1 ALL: 210.152.157.58 ALL: 210.14.71.201 ALL: 210.13.73.30 ALL: 209.23.244.211 ALL: 209.172.35.210 ALL: 208.76.52.4 ALL: 207.47.36.57 ALL: 203.177.51.186 ALL: 203.172.248.253 ALL: 203.169.195.31 ALL: 203.121.182.199 ALL: 203.110.169.60 ALL: 202.99.121.226 ALL: 202.87.40.143 ALL: 202.71.254.95 ALL: 202.29.52.5 ALL: 202.29.18.82 ALL: 202.28.64.1 ALL: 202.215.127.195 ALL: 202.173.157.13 ALL: 202.157.133.22 ALL: 202.153.43.25 ALL: 202.142.20.239 ALL: 202.137.23.131 ALL: 202.129.207.83 ALL: 202.125.47.222 ALL: 202.118.250.186 ALL: 202.109.10.204 ALL: 202.106.127.96 ALL: 202.103.36.43 ALL: 202.100.241.61 ALL: 201.96.126.213 ALL: 201.91.93.178 ALL: 201.87.122.48 ALL: 201.64.234.10 ALL: 201.38.214.15 ALL: 201.34.136.18 ALL: 201.234.196.50 ALL: 201.199.101.47 ALL: 201.144.232.194 ALL: 201.117.252.13 ALL: 200.93.164.53 ALL: 200.90.39.28 ALL: 200.87.122.155 ALL: 200.8.213.1 ALL: 200.50.183.1 ALL: 200.36.249.22 ALL: 200.223.180.102 ALL: 200.187.175.38 ALL: 200.178.253.47 ALL: 200.14.42.206 ALL: 200.124.229.30 ALL: 200.119.7.142 ALL: 200.113.185.227 ALL: 200.111.177.117 ALL: 199.127.98.22 ALL: 198.12.67.76 ALL: 196.43.72.5 ALL: 196.201.225.94 ALL: 195.69.226.71 ALL: 195.244.62.103 ALL: 195.189.209.66 ALL: 194.44.211.194 ALL: 193.204.74.251 ALL: 193.109.53.148 ALL: 192.38.116.244 ALL: 192.115.235.246 ALL: 190.85.97.186 ALL: 190.4.52.205 ALL: 190.207.232.146 ALL: 190.161.170.235 ALL: 190.146.69.104 ALL: 190.146.68.247 ALL: 190.144.42.98 ALL: 190.14.37.163 ALL: 190.128.128.178 ALL: 190.120.227.237 ALL: 190.0.18.82 ALL: 189.69.51.221 ALL: 189.26.115.174 ALL: 189.145.110.15 ALL: 188.168.215.48 ALL: 188.138.45.85 ALL: 187.162.1.77 ALL: 187.130.28.113 ALL: 183.62.232.94 ALL: 183.62.232.93 ALL: 183.62.232.92 ALL: 183.61.135.241 ALL: 183.61.135.240 ALL: 183.61.135.238 ALL: 183.61.135.235 ALL: 183.61.135.231 ALL: 183.61.135.226 ALL: 182.87.196.131 ALL: 182.19.15.145 ALL: 180.210.207.106 ALL: 180.186.74.94 ALL: 180.149.241.84 ALL: 178.248.89.138 ALL: 178.175.136.42 ALL: 177.69.238.15 ALL: 177.5.114.130 ALL: 176.53.57.52 ALL: 176.227.203.74 ALL: 175.22.0.34 ALL: 175.184.20.235 ALL: 175.102.0.181 ALL: 174.143.255.162 ALL: 174.143.168.211 ALL: 174.132.254.178 ALL: 173.55.227.54 ALL: 173.255.226.174 ALL: 173.224.210.22 ALL: 173.204.172.34 ALL: 173.203.238.229 ALL: 173.203.238.203 ALL: 173.203.214.207 ALL: 173.15.79.203 ALL: 167.206.74.237 ALL: 159.253.5.97 ALL: 159.226.128.227 ALL: 153.128.18.113 ALL: 144.16.79.68 ALL: 133.242.138.78 ALL: 132.205.28.150 ALL: 129.35.214.155 ALL: 129.33.194.186 ALL: 129.137.2.60 ALL: 125.67.234.53 ALL: 125.210.40.19 ALL: 124.224.178.154 ALL: 124.202.129.124 ALL: 124.127.184.98 ALL: 123.51.206.51 ALL: 123.30.191.236 ALL: 123.127.160.102 ALL: 122.225.107.98 ALL: 122.215.107.190 ALL: 122.200.53.66 ALL: 122.166.234.149 ALL: 122.164.50.180 ALL: 122.160.184.171 ALL: 122.155.222.4 ALL: 122.131.233.63 ALL: 121.78.149.18 ALL: 121.67.41.143 ALL: 121.157.1.238 ALL: 121.11.76.34 ALL: 121.11.153.242 ALL: 121.0.136.13 ALL: 120.90.170.140 ALL: 120.90.169.83 ALL: 120.89.36.15 ALL: 119.8.186.102 ALL: 119.42.84.43 ALL: 119.42.83.4 ALL: 119.254.7.71 ALL: 119.130.192.95 ALL: 119.130.192.162 ALL: 118.46.149.245 ALL: 118.145.17.47 ALL: 118.102.181.4 ALL: 117.6.130.134 ALL: 117.24.18.252 ALL: 117.21.182.50 ALL: 117.103.32.252 ALL: 116.90.83.104 ALL: 116.52.2.140 ALL: 116.36.214.82 ALL: 116.255.149.179 ALL: 116.228.164.3 ALL: 116.204.98.226 ALL: 115.47.10.201 ALL: 115.248.142.84 ALL: 115.238.101.39 ALL: 114.80.94.55 ALL: 114.75.149.164 ALL: 114.36.149.90 ALL: 114.251.150.133 ALL: 114.247.46.67 ALL: 114.112.50.35 ALL: 114.112.176.16 ALL: 113.64.79.241 ALL: 113.59.34.15 ALL: 113.28.246.227 ALL: 113.28.167.8 ALL: 113.195.227.200 ALL: 112.95.232.134 ALL: 112.125.120.138 ALL: 111.92.237.209 ALL: 111.74.82.33 ALL: 111.68.125.122 ALL: 111.177.125.15 ALL: 110.77.228.102 ALL: 110.77.192.17 ALL: 110.75.188.6 ALL: 109.69.220.71 ALL: 109.29.27.144 ALL: 109.233.94.19 ALL: 109.111.217.147 ALL: 109.111.188.26 ALL: 108.171.248.186 ALL: 101.71.249.172 ALL: 101.44.1.134 ALL: 96.57.129.92 ALL: 95.76.160.130 ALL: 95.55.210.118 ALL: 95.156.204.6 ALL: 95.130.12.19 ALL: 95.107.178.42 ALL: 95.0.62.149 ALL: 94.127.95.58 ALL: 94.102.74.20 ALL: 93.95.59.34 ALL: 93.73.226.38 ALL: 93.104.218.70 ALL: 92.60.28.165 ALL: 92.153.250.72 ALL: 91.232.208.36 ALL: 91.224.136.4 ALL: 91.205.10.19 ALL: 91.203.205.232 ALL: 91.201.214.151 ALL: 91.199.58.35 ALL: 91.196.120.66 ALL: 91.195.249.132 ALL: 91.185.6.67 ALL: 91.134.40.244 ALL: 91.121.12.19 ALL: 89.253.243.165 ALL: 89.253.239.150 ALL: 89.140.136.75 ALL: 89.129.246.135 ALL: 88.191.95.179 ALL: 88.191.25.153 ALL: 88.190.47.146 ALL: 87.98.208.160 ALL: 87.251.215.19 ALL: 87.247.105.148 ALL: 87.226.251.125 ALL: 87.215.133.109 ALL: 87.194.180.28 ALL: 87.118.100.103 ALL: 87.116.87.247 ALL: 87.111.1.191 ALL: 87.104.147.195 ALL: 87.103.113.156 ALL: 86.72.188.80 ALL: 86.111.5.40 ALL: 86.111.5.39 ALL: 86.111.5.38 ALL: 85.40.63.178 ALL: 85.26.186.168 ALL: 85.25.143.79 ALL: 85.25.120.42 ALL: 85.214.97.135 ALL: 85.214.77.101 ALL: 85.214.158.28 ALL: 85.214.136.169 ALL: 85.214.132.252 ALL: 85.214.132.221 ALL: 85.214.112.247 ALL: 85.214.108.67 ALL: 85.158.209.197 ALL: 85.131.247.119 ALL: 85.115.100.144 ALL: 85.114.130.83 ALL: 84.55.112.13 ALL: 84.52.113.88 ALL: 84.38.66.250 ALL: 84.237.20.90 ALL: 84.167.32.174 ALL: 84.167.30.234 ALL: 83.233.34.145 ALL: 83.18.167.138 ALL: 83.170.83.174 ALL: 83.16.67.98 ALL: 83.132.104.248 ALL: 82.137.200.10 ALL: 81.30.169.94 ALL: 81.24.80.245 ALL: 81.15.149.42 ALL: 79.7.85.17 ALL: 79.48.182.11 ALL: 79.218.46.190 ALL: 79.137.225.2 ALL: 79.121.25.203 ALL: 78.90.36.14 ALL: 78.46.204.83 ALL: 78.41.88.54 ALL: 78.137.28.163 ALL: 77.92.142.204 ALL: 77.76.109.119 ALL: 77.76.109.118 ALL: 77.235.62.187 ALL: 77.235.58.143 ALL: 77.192.48.185 ALL: 77.192.48.160 ALL: 77.120.19.189 ALL: 76.12.185.151 ALL: 75.149.192.2 ALL: 74.94.156.75 ALL: 74.93.92.173 ALL: 74.56.151.159 ALL: 72.54.20.41 ALL: 70.66.195.188 ALL: 70.54.247.51 ALL: 70.43.86.34 ALL: 70.38.31.38 ALL: 70.168.200.143 ALL: 70.164.206.66 ALL: 69.39.66.94 ALL: 69.10.135.148 ALL: 67.23.27.66 ALL: 67.207.142.198 ALL: 66.135.60.140 ALL: 64.81.38.212 ALL: 64.65.42.10 ALL: 64.65.133.134 ALL: 64.34.165.42 ALL: 64.191.21.190 ALL: 64.15.152.15 ALL: 63.150.23.37 ALL: 62.183.85.225 ALL: 62.141.42.80 ALL: 61.90.47.52 ALL: 61.244.48.106 ALL: 61.19.244.254 ALL: 61.185.71.34 ALL: 61.177.119.226 ALL: 61.160.245.219 ALL: 61.155.152.242 ALL: 61.155.106.209 ALL: 61.142.106.34 ALL: 61.130.248.202 ALL: 60.31.197.146 ALL: 60.191.232.54 ALL: 60.174.198.14 ALL: 60.170.80.198 ALL: 60.13.74.23 ALL: 60.10.6.185 ALL: 59.66.101.112 ALL: 59.53.51.178 ALL: 59.50.113.102 ALL: 59.46.172.67 ALL: 59.44.157.74 ALL: 59.40.185.208 ALL: 59.173.18.101 ALL: 59.162.166.211 ALL: 59.162.166.210 ALL: 59.148.253.57 ALL: 59.108.122.132 ALL: 58.97.56.137 ALL: 58.8.32.113 ALL: 58.68.229.18 ALL: 58.54.254.115 ALL: 58.251.164.66 ALL: 58.233.219.99 ALL: 58.221.37.16 ALL: 58.215.56.110 ALL: 58.1.224.3 ALL: 50.59.209.20 ALL: 50.22.249.204 ALL: 50.194.198.77 ALL: 49.212.178.75 ALL: 49.123.105.11 ALL: 46.4.85.14 ALL: 46.4.50.140 ALL: 46.38.162.47 ALL: 46.29.250.191 ALL: 46.182.83.78 ALL: 42.62.18.199 ALL: 42.121.119.119 ALL: 41.79.88.99 ALL: 41.250.251.67 ALL: 41.0.35.98 ALL: 37.221.160.52 ALL: 36.232.198.246 ALL: 31.210.120.31 ALL: 27.17.53.69 ALL: 27.159.200.234 ALL: 14.96.104.7 ALL: 14.42.151.165 ALL: 14.31.15.76 ALL: 12.152.56.50 ALL: 5.9.148.37 ALL: 5.61.36.121 ALL: 5.175.136.89 ALL: 1.82.184.25 ALL: 1.82.184.24 ALL: 1.82.184.23 ALL: 1.234.62.122 ALL: 1.234.45.87 # # Hosts from blacklist 2 with 3600 seconds penalty ALL: 212.2.195.181 ALL: 203.141.150.153 ALL: 190.146.68.247 ALL: 46.126.1.127