linux 防止攻击的配置:

hosts.deny

内容如下:

#
# hosts.deny    This file contains access rules which are used to
#       deny connections to network services that either use
#       the tcp_wrappers library or that have been
#       started through a tcp_wrappers-enabled xinetd.
#
#       The rules in this file can also be set up in
#       /etc/hosts.allow with a 'deny' option instead.
#
#       See 'man 5 hosts_options' and 'man 5 hosts_access'
#       for information on rule syntax.
#       See 'man tcpd' for information on tcp_wrappers
#
sshd:120.25.212.
sshd:120.25.212.
sshd:113.102.171.
sshd:113.116.213.
sshd:119.139.67.
#sshd:123.59.55.
sshd:223.5.17.
sshd:120.25.212.
sshd:1.85.21.
sshd:91.184.23.
sshd:183.131.175.
sshd:59.56.76.
sshd:59.36.97.
sshd:14.17.64.
sshd:106.122.249.
sshd:122.228.245.
sshd:60.10.2.sshd:79.174.70.
sshd:216.45.110.
sshd:58.217.255.
sshd:114.215.132.
sshd:218.205.169.
sshd:103.224.166.
sshd:113.108.21.
sshd:66.240.213.
sshd:114.215.132.
sshd:134.219.148.
sshd:91.218.231.
sshd:113.240.250.
sshd:113.68.209.
sshd:69.71.66.
sshd:219.134.55.
sshd:119.164.254.
sshd:159.226.92.
sshd:97.126.196.
sshd:185.130.5.
sshd:59.47.0.
sshd:58.242.245.
sshd:191.5.95.
sshd:113.92.245.
sshd:89.248.172.
# sshd:123.56.184.
sshd:85.172.36.
# sshd:117.255.235.
sshd:177.86.2.
sshd:177.21.63.
# sshd:117.255.209.
sshd:90.230.28.
sshd:118.193.156.
sshd:169.54.244.
sshd:185.35.62.
sshd:58.61.50.
sshd:116.10.52.
sshd:169.54.244.
sshd:185.35.62.
sshd:58.61.50.
sshd:116.10.52.
sshd:119.41.226.
sshd:108.84.48.
sshd:107.155.66.
sshd:141.212.122.
sshd:138.185.149.
sshd:23.21.156.
sshd:65.98.40.
sshd:94.255.224.
sshd:95.173.184.
sshd:193.36.35.
#sshd:212.224.123.
sshd:101.201.232.
sshd:112.74.176.
sshd:129.41.232.
sshd:129.41.232.
sshd:81.27.85.
sshd:178.239.177.
sshd:107.6.130.
sshd:208.116.37.
sshd:107.6.130.
sshd:124.16.173.
sshd:59.47.76.
# sshd:117.80.209.
sshd:121.15.49.
sshd:221.203.142.
# sshd:123.59.146.
sshd:210.192.100.
sshd:98.210.146.
sshd:94.50.4.
sshd:120.24.81.
sshd:113.90.230.
sshd:120.24.81.

更新如下:

以下 ip 全是垃圾 ip

#
# hosts.deny    This file contains access rules which are used to
#       deny connections to network services that either use
#       the tcp_wrappers library or that have been
#       started through a tcp_wrappers-enabled xinetd.
#
#       The rules in this file can also be set up in
#       /etc/hosts.allow with a 'deny' option instead.
#
#       See 'man 5 hosts_options' and 'man 5 hosts_access'
#       for information on rule syntax.
#       See 'man tcpd' for information on tcp_wrapperssshd:120.25.212.
sshd:120.25.212.
sshd:113.102.171.
sshd:113.116.213.
sshd:119.139.67.
sshd:223.5.17.
sshd:120.25.212.
sshd:1.85.21.
sshd:91.184.23.
sshd:183.131.175.
sshd:59.56.76.
sshd:59.36.97.
sshd:14.17.64.
sshd:106.122.249.
sshd:122.228.245.
sshd:60.10.2.sshd:79.174.70.
sshd:216.45.110.
sshd:58.217.255.
sshd:114.215.132.
sshd:218.205.169.
sshd:103.224.166.
sshd:113.108.21.
sshd:66.240.213.
sshd:114.215.132.
sshd:134.219.148.
sshd:91.218.231.
sshd:113.240.250.
sshd:113.68.209.
sshd:69.71.66.
sshd:219.134.55.
sshd:119.164.254.
sshd:159.226.92.
sshd:97.126.196.
sshd:185.130.5.
sshd:59.47.0.
sshd:58.242.245.
sshd:191.5.95.
sshd:113.92.245.
sshd:89.248.172.
sshd:85.172.36.
sshd:177.86.2.
sshd:177.21.63.
sshd:90.230.28.
sshd:118.193.156.
sshd:169.54.244.
sshd:185.35.62.
sshd:58.61.50.
sshd:116.10.52.
sshd:169.54.244.
sshd:185.35.62.
sshd:58.61.50.
sshd:116.10.52.
sshd:119.41.226.
sshd:108.84.48.
sshd:107.155.66.
sshd:141.212.122.
sshd:138.185.149.
sshd:23.21.156.
sshd:65.98.40.
sshd:94.255.224.
sshd:95.173.184.
sshd:193.36.35.
sshd:101.201.232.
sshd:112.74.176.
sshd:129.41.232.
sshd:129.41.232.
sshd:81.27.85.
sshd:178.239.177.
sshd:107.6.130.
sshd:208.116.37.
sshd:107.6.130.
sshd:124.16.173.
sshd:59.47.76.
sshd:121.15.49.
sshd:221.203.142.
sshd:210.192.100.
sshd:98.210.146.
sshd:94.50.4.
sshd:120.24.81.
sshd:113.90.230.
sshd:120.24.81.
sshd:112.74.23.
sshd:120.25.144.
sshd:18.85.59.
sshd:217.95.127.
sshd:189.47.179.
sshd:39.110.149.
sshd:67.222.139.
sshd:77.174.80.
sshd:218.7.221.
sshd:121.42.0.
sshd:120.26.78.
sshd:188.18.23.
sshd:115.28.93.
sshd:223.100.11.
sshd:218.87.109.
sshd:115.28.243.
sshd:203.174.140.
sshd:70.77.145.
sshd:121.40.100.
sshd:62.24.112.
sshd:120.25.103.
sshd:123.57.229.
sshd:190.8.50.
sshd:66.96.206.
sshd:120.77.24.
sshd:46.223.36.
sshd:89.163.134.
sshd:115.29.108.
sshd:79.150.202.
sshd:125.62.22.
sshd:192.241.182.
sshd:82.113.72.
sshd:166.111.7.
sshd:216.104.196.
sshd:223.68.132.
sshd:123.56.145.
sshd:115.28.240.
sshd:89.163.134.
sshd:109.74.248.
sshd:104.197.46.
sshd:43.241.208.
sshd:121.42.177.
sshd:121.41.108.
sshd:112.74.68.
sshd:43.250.44.
sshd:207.190.196.
sshd:121.41.121.
sshd:1.82.243.
sshd:73.186.113.
sshd:138.118.7.
sshd:107.184.57.
sshd:120.26.106.
sshd:123.56.4.
sshd:112.74.113.
sshd:89.34.24.
sshd:113.90.175
sshd:139.196.150
sshd:101.200.158.
sshd:123.57.4.
sshd:139.196.150.
sshd:115.28.26.
sshd:101.200.32.
sshd:115.28.176.
sshd: 5.26.125.223
sshd: 14.152.59.9
sshd: 164.132.187.60
sshd: 101.200.158.220
sshd: 139.196.150.20
sshd: 115.28.26.72
sshd: 115.28.176.154
sshd: 115.28.140.155
sshd: 101.200.32.61
sshd: 123.57.220.183
sshd: 123.57.163.206
sshd: 89.34.24.160
sshd: 121.42.210.61
sshd: 123.57.4.140sshd: 123.57.250.51
sshd: 140.205.225.184
sshd: 70.1.55.21
sshd: 139.196.173.11
sshd: 115.28.111.192
sshd: 120.26.85.133
sshd: 123.57.43.67
sshd: 123.57.217.199
sshd: 140.205.225.187
sshd: 114.215.255.23
sshd: 58.127.252.155
sshd: 188.19.206.126
sshd: 159.226.71.101
sshd: 124.16.71.20
sshd: 124.16.71.22
sshd: 202.146.80.178
sshd: 123.118.213.166
sshd: 123.118.216.224
sshd: 114.245.36.241
sshd: 222.129.38.115
sshd: 222.129.51.91
sshd: 140.205.201.31
sshd: 86.125.24.85
sshd: 120.26.202.239
sshd: 180.249.109.125
sshd: 112.74.36.202
sshd: 139.196.43.154
sshd: 140.205.201.40
sshd: 139.162.73.19
sshd: 203.146.40.168
sshd: 209.255.222.142
sshd: 186.178.175.183
sshd: 140.205.225.188
sshd: 67.205.139.92
sshd: 87.3.229.5
sshd: 140.205.201.37
sshd: 140.205.201.30
sshd: 123.57.70.124
sshd: 58.30.48.211
sshd: 139.196.13.60
sshd: 203.151.21.247
sshd: 140.205.201.39
sshd: 140.205.225.185
sshd: 139.224.196.86
sshd: 123.57.233.76
sshd: 123.57.2.76
sshd: 123.57.59.33
sshd: 140.205.201.38
sshd: 114.215.239.201
sshd: 101.200.78.64
sshd: 101.200.132.204
sshd: 91.11.199.6
sshd: 181.113.191.20
sshd: 178.186.20.243
sshd: 140.205.225.186
sshd: 190.152.197.107
sshd: 52.19.93.208
sshd: 31.181.161.19
sshd: 101.201.68.145
sshd: 139.224.223.223
sshd: 140.205.201
sshd: 62.212.130.196
sshd: 120.76.54.136
sshd: 120.25.197.98
sshd: 123.57.67.230
sshd: 50.60.153.98
sshd: 140.205.201.42
sshd: 114.215.253.127
sshd: 212.83.128.41
sshd: 123.57.183.41
sshd: 5.189.162.107
sshd: 118.123.119.124
sshd: 123.57.243.99
sshd: 109.196.180.174
sshd: 114.219.19.240
sshd: 121.199.70.200
sshd: 31.173.226.66
sshd: 223.81.27.109
sshd: 120.24.69.184
sshd: 79.33.178.159
sshd: 103.24.176.110
sshd: 123.56.233.113
sshd: 171.61.145.7
sshd: 60.173.184.182sshd: 183.131.83.175
sshd: 115.236.0.243
sshd: 112.74.58.137
sshd: 123.56.233.103
sshd: 140.205.201.32
sshd: 140.205.201.33
sshd: 123.207.16.241
sshd: 61.160.211.141
sshd: 202.170.80.40
sshd: 195.154.57.248
sshd: 186.57.10.17
sshd: 218.63.123.243
sshd: 123.31.34.130
sshd: 112.74.112.143
sshd: 45.63.99.90
sshd: 5.141.132.239
sshd: 140.255.178.41
sshd: 49.4.143.237
sshd: 31.163.1.172
sshd: 46.63.22.190
sshd: 112.74.180.42
sshd: 189.90.219.123
sshd: 58.208.228
sshd: 58.208.228.84
sshd: 116.31.123.60
sshd: 140.205.201.41
sshd: 59.96.101.62
sshd: 101.200.42.194
sshd: 120.27.52.105
sshd: 46.48.253.116
sshd: 101.201.115.10
sshd: 120.76.98.218
sshd: 212.129.29.20
sshd: 79.133.155.139
sshd: 123.31.34.31
sshd: 186.133.197.224
sshd: 125.212.211.202
sshd: 140.205.201.43
sshd: 120.132.55.105
sshd: 123.207.233.112
sshd: 59.183.113.232
sshd: 182.44.25.122
sshd: 191.84.93.83
sshd: 222.186.44.19
sshd: 139.162.122.110
sshd: 108.61.126.204
sshd: 151.53.181.79
sshd: 94.50.158.217
sshd: 186.57.21.144
sshd: 94.62.0.54
sshd: 120.25.98.83
sshd: 117.21.224.127
sshd: 139.196.13.63
sshd: 162.243.171.119
sshd: 120.25.61.75
sshd: 123.57.183.61
sshd: 125.88.187.43
sshd: 94.51.130.246
sshd: 121.40.34.54
sshd: 167.160.182.3
sshd: 152.204.30.201
sshd: 139.196.188.21
sshd: 37.21.92.147
sshd: 94.78.224.70
sshd: 222.186.51.138
sshd: 213.111.32.39
sshd: 149.35.13
sshd: 123.57.184.64
sshd: 149.35.13.137
sshd: 140.205.201.36
sshd: 140.205.201.34
sshd: 212.83.134.168
sshd: 41.237.1.129
sshd: 123.56.65.139
sshd: 140.205.225.183
sshd: 122.231.173.241
sshd: 123.56.96.206
sshd: 91.224.161.71
sshd: 222.187.224.76
sshd: 183.129.160.229
sshd: 203.150.54.59
sshd: 112.207.224.217
sshd: 159.226.34.63
sshd: 35.162.173.219
sshd: 202.109.143.77
sshd: 23.253.159.118
sshd: 195.154.50.61
sshd: 121.42.152.49
sshd: 14.185.157.168
sshd: 163.172.219.77
sshd: 210.77.2.254
sshd: 220.162.247.195
sshd: 163.172.204.238
sshd: 162.243.68.172
sshd: 109.235.70.74
sshd: 45.55.84.154
sshd: 101.200.150.105
sshd: 123.57.66.127
sshd: 124.114.183.
sshd: 120.24.218.139
sshd: 120.25.102.16
sshd: 62.210.189.248
sshd: 121.42.150.86
sshd: 120.24.251.13
sshd: 101.201.149.88
sshd: 62.48.142.153
sshd: 114.215.138.30
sshd: 18.85.59.34
sshd: 114.215.190.221
sshd: 112.90.72.2
sshd: 121.42.0.36
sshd: 121.42.0.37
sshd: 120.55.194.140
sshd: 121.42.0.86
sshd: 106.184.3.122
sshd: 120.25.144.134
sshd: 112.74.23.152
sshd: 123.56.4.238
sshd: 120.24.156.51
sshd: 121.42.0.83
sshd: 121.42.0.82
sshd: 120.69.220.5
sshd: 121.42.0.87
sshd: 96.50.185.81
sshd: 121.42.0.88
sshd: 204.210.205.152
sshd: 121.42.0.19
sshd: 67.222.139.227
sshd: 120.26.78.76
sshd: 121.42.0.16
sshd: 123.57.84.196
sshd: 123.103.9.9
sshd: 124.114.183.6
sshd: 115.112.66.194
sshd: 69.12.65.102
sshd: 212.83.149.82
sshd: 92.237.77.164
sshd: 124.17.88.2
sshd: 171.212.141.155
sshd: 69.12.65.101
sshd: 218.3.140.74
sshd: 218.87.138.210
sshd: 91.224.160.203
sshd: 140.205.201.44
sshd: 200.55.224.230
sshd: 212.5.157.135
sshd: 200.59.46.180
sshd: 212.50.239.218
sshd: 123.66.35.53
sshd: 59.93.167.187
sshd: 220.126.190.14
sshd: 59.110.48.26
sshd: 113.122.42.87
sshd: 5.154.240.143
sshd: 171.61.157.15
sshd: 202.109.143.15
sshd: 212.83.177.228
sshd: 47.89.180.222
sshd: 182.101.225.82
sshd: 140.205.201.45
sshd: 41.102.13.56
sshd: 220.191.15.175
sshd: 182.18.72.101
sshd: 37.114.62.115
sshd: 60.205.210.125
sshd: 217.128.65.238
sshd: 122.144.200.133
sshd: 47.88.102.23
sshd: 103.44.145.36
sshd: 81.171.12.132
sshd: 193.201.224.210
sshd: 115.28.42.203
sshd: 112.124.29.16
sshd: 101.201.82.179
sshd: 121.200.49.114
sshd: 112.74.37.184
sshd: 123.31.34.165
sshd: 199.217.118.45
sshd: 110.19.204.18
sshd: 52.200.176.100
sshd: 120.25.221.227
sshd: 212.83.150.29
sshd: 113.28.55.187
sshd: 139.196.143.158
sshd: 195.3.144.213
sshd: 101.200.160.48
sshd: 120.77.214.141
sshd: 123.57.246.34
sshd: 120.76.247.107
sshd: 80.241.223.175
sshd: 123.57.46.89
sshd: 120.26.85.119
sshd: 60.191.38.77
sshd: 112.74.54.79
sshd: 114.215.29.141
sshd: 120.77.36.130
sshd: 140.205.201.46
sshd: 113.108.127.187
sshd: 153.99.48.57
sshd: 35.154.150.76
sshd: 153.99.49.170
sshd: 123.57.49.163
sshd: 123.57.151.239
sshd: 111.121.193.223
sshd: 123.57.210.25
sshd: 106.14.236.59
sshd: 104.199.17.217
sshd: 189.113.129.126
sshd: 45.119.125.22
sshd: 176.123.27.28
sshd: 52.48.249.16
sshd: 139.196.18.95
sshd: 115.28.59.5
sshd: 90.125.236.131
sshd: 140.205.201.35
sshd: 106.14.72.174
sshd: 180.76.189.148
sshd: 121.41.29.130
sshd: 123.57.83.228
sshd: 157.52.165.11
sshd: 212.83.133.230
sshd: 212.83.141.81
sshd: 177.125.243.163
sshd: 5.35.252.222
sshd: 123.56.163.141
sshd: 5.8.10.202
sshd: 163.172.116.185
sshd: 119.193.140.217
sshd: 120.27.240.44
sshd: 202.109.143.114
sshd: 90.182.179.196
sshd: 50.62.147.76
sshd: 77.87.132.23
sshd: 116.62.104.112
sshd: 123.31.34.190
sshd: 180.97.81.71
sshd: 139.196.9.81
sshd: 140.205.201.47
sshd: 178.33.49.94
sshd: 117.18.79.201
sshd: 101.201.239.216
sshd: 199.38.243.13
sshd: 111.73.45.188
sshd: 115.92.245.18
sshd: 47.52.32.223
sshd: 123.57.73.49
sshd: 121.43.167.241
sshd: 121.42.247.16
sshd: 119.254.98.166
sshd: 120.24.171.149
sshd: 123.57.172.159
sshd: 123.57.213.175
sshd: 153.99.182.31
sshd: 120.55.115.226
sshd: 154.42.65.131
sshd: 119.147.115.37
sshd: 121.42.247.84
sshd: 111.73.46.224
sshd: 218.2.108.2
sshd: 123.57.80.140
sshd: 218.93.208.99
sshd: 115.239.248.137
sshd: 125.88.146.142
sshd: 125.88.146.104
sshd: 59.56.110.159
sshd: 125.88.182.181
sshd: 119.147.139.153
sshd: 125.88.183.166
sshd: 111.73.46.89
sshd: 101.200.149.0
sshd: 47.90.92.26
sshd: 123.56.65.175
sshd: 121.196.206.64
sshd: 212.83.136.67
sshd: 90.21.132.108
sshd: 120.77.156.234
sshd: 93.199.248.194
sshd: 47.93.90.175
sshd: 114.55.34.109
sshd: 23.248.219.85
sshd: 114.55.175.55
sshd: 14.134.243.85
sshd: 220.163.44.181
sshd: 120.77.155.205
sshd: 106.75.25.245
sshd: 118.190.15.31
sshd: 123.31.34.218
sshd: 118.193.154.98
sshd: 118.89.220.120

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