- 세상의 모든 계산기 자유(질문) 게시판 일반 ()
클라우드 서버 sshd 포트 열어뒀더니... 많이 들어오는군요.
지금의 세모계 서버를 열어둔 건 아니고,
다른 서버 테스트용으로 하나 만들어서 열어만 둔 거 있는데
어떻게 알고 또 귀신같이 들러붙네요.
fail2ban 돌려봤더니 이틀만에 ban list에 149개 등록
Status for the jail: sshd
|- Filter
| |- Currently failed: 11
| |- Total failed: 463
| `- Journal matches: _SYSTEMD_UNIT=sshd.service + _COMM=sshd
`- Actions
|- Currently banned: 149
|- Total banned: 149
`- Banned IP list: 60.199.224.55 43.134.121.65 103.248.60.70 41.111.234.136 34.66.72.251 24.199.113.111 14.6.81.179 159.89.168.110 5.250.188.211 103.26.136.173 14.225.213.232 45.89.233.214 128.199.150.58 60.199.224.2 202.157.176.210 151.80.61.151 161.35.121.67 167.86.81.130 69.49.246.187 95.167.225.76 43.134.185.197 51.222.106.104 138.68.161.220 118.194.230.250 190.129.60.125 149.129.67.202 138.84.41.218 115.160.146.86 162.241.126.244 72.167.44.240 57.128.172.114 159.89.154.119 201.48.76.244 43.134.103.193 103.143.72.165 104.248.36.106 125.20.16.22 43.135.129.247 52.233.80.34 114.34.106.146 118.70.48.219 154.92.16.94 136.232.203.134 14.63.221.137 159.65.161.118 136.232.98.230 141.94.246.192 179.33.186.151 177.85.247.230 143.198.145.136 103.98.4.35 128.199.214.193 161.35.231.77 24.199.103.14 122.155.0.205 183.110.116.65 181.188.159.138 64.23.206.49 106.51.1.72 186.121.205.29 61.222.211.114 43.224.48.86 128.199.73.168 87.201.127.149 49.51.228.223 89.183.192.60 95.90.242.212 82.142.13.233 129.226.212.125 181.212.81.228 51.79.27.107 213.225.14.135 154.72.194.207 45.238.232.3 182.57.16.58 27.112.78.50 73.135.38.134 74.249.18.64 210.17.230.213 103.94.113.2 45.156.23.56 103.69.220.19 213.215.140.6 45.175.157.53 34.139.17.74 190.181.15.3 195.133.2.209 41.138.54.13 101.47.5.97 64.227.174.243 190.111.252.40 206.189.22.29 103.187.147.32 185.6.9.159 78.187.21.105 181.174.224.99 65.49.196.227 61.84.35.21 212.49.70.200 36.92.214.178 123.30.98.134 51.79.144.105 104.168.22.62 123.58.214.42 178.128.84.59 27.71.25.96 123.58.214.129 43.157.183.148 103.187.146.162 128.199.5.115 105.174.43.194 201.249.204.178 118.91.162.78 180.225.174.116 138.197.168.82 143.198.209.18 103.90.67.83 147.45.77.165 27.254.192.185 203.12.203.114 34.142.110.144 206.189.45.206 2.189.175.19 37.58.18.216 186.124.22.55 157.245.151.195 45.119.81.249 103.130.215.82 59.103.120.51 69.49.247.85 134.122.8.241 51.68.126.207 103.199.145.82 178.62.194.205 178.32.172.153 139.255.87.220 213.149.166.200 103.53.28.93 103.154.123.19 104.250.56.198 165.227.118.246 95.174.102.56 185.141.132.26 103.84.236.242 134.209.162.179 104.168.30.102 142.44.162.161 134.209.181.159 121.141.64.213
역시 sshd 포트는 특정 IP만 접근할 수 있게 막아두는게 최선인 듯 합니다.
댓글6
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세상의모든계산기
집에 공유기 방화벽 기록을 봤더니... 여기도 장난 아니네요.
10/12/2024 10:08:03 Ping Of Death from 183.61.109.222 to 공유기 droped
10/12/2024 10:09:43 Ping Of Death from 74.3.163.37 to 공유기 droped
10/12/2024 10:57:08 Ping Of Death from 132.145.22.18 to 공유기 droped
10/12/2024 10:59:48 Ping Of Death from 43.128.69.194 to 공유기 droped
10/12/2024 11:29:57 Ping Of Death from 58.144.142.140 to 공유기 droped
10/12/2024 11:33:46 Ping Of Death from 43.130.90.69 to 공유기 droped
10/12/2024 11:44:17 Ping Of Death from 35.172.109.225 to 공유기 droped
10/12/2024 12:17:51 Ping Of Death from 50.116.23.150 to 공유기 droped
10/12/2024 12:25:30 Ping Of Death from 101.66.161.106 to 공유기 droped
10/12/2024 12:27:32 Ping Of Death from 170.39.225.162 to 공유기 droped
10/12/2024 13:02:06 Ping Of Death from 52.81.237.148 to 공유기 droped
10/12/2024 13:40:30 Ping Of Death from 194.195.122.95 to 공유기 droped
10/12/2024 14:02:32 Ping Of Death from 54.225.49.201 to 공유기 droped
10/12/2024 14:23:30 Ping Of Death from 76.8.60.71 to 공유기 droped
10/12/2024 14:32:22 Ping Of Death from 71.136.112.66 to 공유기 droped
10/12/2024 14:35:32 Ping Of Death from 162.62.58.193 to 공유기 droped
10/12/2024 14:51:52 Ping Of Death from 119.147.86.35 to 공유기 droped
10/12/2024 15:54:58 Ping Of Death from 43.156.12.125 to 공유기 droped
10/12/2024 16:00:30 Ping Of Death from 60.188.112.159 to 공유기 droped
10/12/2024 16:09:13 Ping Of Death from 52.81.253.27 to 공유기 droped
10/12/2024 16:12:17 Ping Of Death from 113.200.63.216 to 공유기 droped
10/12/2024 16:34:37 Ping Of Death from 163.47.21.77 to 공유기 droped
10/12/2024 17:10:21 Ping Of Death from 61.240.29.164 to 공유기 droped
10/12/2024 17:13:34 Ping Of Death from 172.104.45.135 to 공유기 droped
10/12/2024 17:31:04 Ping Of Death from 101.71.134.164 to 공유기 droped
10/12/2024 18:06:27 Ping Of Death from 38.180.77.40 to 공유기 droped
10/12/2024 18:46:54 Ping Of Death from 43.128.69.194 to 공유기 droped
10/12/2024 19:08:21 Ping Of Death from 107.20.15.252 to 공유기 droped
10/12/2024 19:24:12 Ping Of Death from 54.88.147.30 to 공유기 droped
10/12/2024 19:39:58 Ping Of Death from 35.213.11.235 to 공유기 droped
10/12/2024 19:40:37 Ping Of Death from 170.39.225.147 to 공유기 droped
10/12/2024 19:50:27 Ping Of Death from 52.80.238.175 to 공유기 droped
10/12/2024 19:52:55 Ping Of Death from 113.57.9.146 to 공유기 droped
10/12/2024 20:02:46 Ping Of Death from 223.15.244.251 to 공유기 droped
10/12/2024 20:48:15 Ping Of Death from 185.157.232.103 to 공유기 droped
10/12/2024 20:51:33 Ping Of Death from 123.184.59.71 to 공유기 droped
10/12/2024 21:02:43 Ping Of Death from 49.72.213.128 to 공유기 droped
10/12/2024 21:17:21 Ping Of Death from 204.216.214.162 to 공유기 droped
10/12/2024 21:26:21 Ping Of Death from 112.95.75.94 to 공유기 droped
10/12/2024 21:32:22 Ping Of Death from 54.225.49.201 to 공유기 droped
10/12/2024 21:55:41 Ping Of Death from 125.76.82.92 to 공유기 droped
10/12/2024 21:56:09 Ping Of Death from 52.81.237.148 to 공유기 droped
10/12/2024 21:59:36 Ping Of Death from 39.175.5.126 to 공유기 droped
10/12/2024 22:04:45 Ping Of Death from 162.62.58.193 to 공유기 droped
10/12/2024 22:06:44 Ping Of Death from 129.151.234.14 to 공유기 droped
10/12/2024 22:06:57 Ping Of Death from 170.106.14.53 to 공유기 droped
10/12/2024 22:16:29 Syn flood From IP 78.135.100.167 port 2829 to IP 공유기 port 22 droped
10/12/2024 22:16:29 Null Scan from IP 78.135.100.167 port 2829 to IP 공유기 port 22 droped
10/12/2024 22:16:36 Syn flood From IP 188.132.189.27 port 16993 to IP 공유기 port 22 droped
10/12/2024 22:16:36 Null Scan from IP 188.132.189.27 port 16993 to IP 공유기 port 22 droped
10/12/2024 22:16:42 Syn flood From IP 185.73.202.178 port 7037 to IP 공유기 port 22 droped
10/12/2024 22:16:42 Null Scan from IP 185.73.202.178 port 7037 to IP 공유기 port 22 droped
10/12/2024 22:16:47 Syn flood From IP 188.132.191.15 port 13855 to IP 공유기 port 22 droped
10/12/2024 22:16:47 Null Scan from IP 188.132.191.15 port 13855 to IP 공유기 port 22 droped
10/12/2024 22:16:51 Syn flood From IP 212.64.201.144 port 5479 to IP 공유기 port 22 droped
10/12/2024 22:16:51 Null Scan from IP 212.64.201.144 port 5479 to IP 공유기 port 22 droped
10/12/2024 22:16:53 Syn flood From IP 188.132.236.53 port 31509 to IP 공유기 port 22 droped
10/12/2024 22:16:53 Null Scan from IP 188.132.236.53 port 31509 to IP 공유기 port 22 droped
10/12/2024 22:16:53 Syn flood From IP 185.73.201.250 port 12893 to IP 공유기 port 22 droped
10/12/2024 22:16:53 Null Scan from IP 185.73.201.250 port 12893 to IP 공유기 port 22 droped
10/12/2024 22:16:54 Syn flood From IP 185.73.200.91 port 10059 to IP 공유기 port 22 droped
10/12/2024 22:16:54 Null Scan from IP 185.73.200.91 port 10059 to IP 공유기 port 22 droped
10/12/2024 22:16:56 Syn flood From IP 212.64.202.222 port 28481 to IP 공유기 port 22 droped
10/12/2024 22:16:56 Null Scan from IP 212.64.202.222 port 28481 to IP 공유기 port 22 droped
10/12/2024 22:17:03 Syn flood From IP 185.165.77.192 port 31945 to IP 공유기 port 22 droped
10/12/2024 22:17:03 Null Scan from IP 185.165.77.192 port 31945 to IP 공유기 port 22 droped
10/12/2024 22:17:10 Syn flood From IP 188.132.249.212 port 28785 to IP 공유기 port 22 droped
10/12/2024 22:17:10 Null Scan from IP 188.132.249.212 port 28785 to IP 공유기 port 22 droped
10/12/2024 22:17:16 Syn flood From IP 212.64.217.193 port 22689 to IP 공유기 port 22 droped
10/12/2024 22:17:16 Null Scan from IP 212.64.217.193 port 22689 to IP 공유기 port 22 droped
10/12/2024 22:17:16 Syn flood From IP 188.132.190.59 port 32187 to IP 공유기 port 22 droped
10/12/2024 22:17:16 Null Scan from IP 188.132.190.59 port 32187 to IP 공유기 port 22 droped
10/12/2024 22:17:22 Syn flood From IP 194.177.14.200 port 17363 to IP 공유기 port 22 droped
10/12/2024 22:17:22 Null Scan from IP 194.177.14.200 port 17363 to IP 공유기 port 22 droped
10/12/2024 22:17:24 Syn flood From IP 185.17.113.195 port 12861 to IP 공유기 port 22 droped
10/12/2024 22:17:24 Null Scan from IP 185.17.113.195 port 12861 to IP 공유기 port 22 droped
10/12/2024 22:17:29 Syn flood From IP 212.68.55.229 port 479 to IP 공유기 port 22 droped
10/12/2024 22:17:29 Null Scan from IP 212.68.55.229 port 479 to IP 공유기 port 22 droped
10/12/2024 22:17:33 Syn flood From IP 212.64.216.143 port 16719 to IP 공유기 port 22 droped
10/12/2024 22:17:33 Null Scan from IP 212.64.216.143 port 16719 to IP 공유기 port 22 droped
10/12/2024 22:17:38 Syn flood From IP 212.68.35.148 port 633 to IP 공유기 port 22 droped
10/12/2024 22:17:38 Null Scan from IP 212.68.35.148 port 633 to IP 공유기 port 22 droped
10/12/2024 22:17:40 Syn flood From IP 212.68.60.16 port 4167 to IP 공유기 port 22 droped
10/12/2024 22:17:40 Null Scan from IP 212.68.60.16 port 4167 to IP 공유기 port 22 droped
10/12/2024 22:17:41 Syn flood From IP 185.17.112.51 port 13305 to IP 공유기 port 22 droped
10/12/2024 22:17:41 Null Scan from IP 185.17.112.51 port 13305 to IP 공유기 port 22 droped
10/12/2024 22:17:45 Syn flood From IP 185.17.114.218 port 27459 to IP 공유기 port 22 droped
10/12/2024 22:17:45 Null Scan from IP 185.17.114.218 port 27459 to IP 공유기 port 22 droped
10/12/2024 22:18:02 Ping Of Death from 71.136.112.66 to 공유기 droped
10/12/2024 22:18:16 Syn flood From IP 212.64.218.160 port 9335 to IP 공유기 port 22 droped
10/12/2024 22:18:16 Null Scan from IP 212.64.218.160 port 9335 to IP 공유기 port 22 droped
10/12/2024 23:12:43 Ping Of Death from 102.213.6.54 to 공유기 droped
10/13/2024 00:15:42 Ping Of Death from 36.250.73.3 to 공유기 droped
10/13/2024 00:19:49 Ping Of Death from 43.156.12.125 to 공유기 droped
10/13/2024 00:24:18 Ping Of Death from 170.80.110.63 to 공유기 droped
10/13/2024 00:24:56 Ping Of Death from 43.157.82.161 to 공유기 droped
10/13/2024 00:31:59 Ping Of Death from 113.57.9.146 to 공유기 droped
10/13/2024 00:34:06 Ping Of Death from 107.155.21.87 to 공유기 droped
10/13/2024 00:55:32 Ping Of Death from 35.172.109.225 to 공유기 droped
10/13/2024 01:25:02 Ping Of Death from 129.226.145.164 to 공유기 droped
10/13/2024 01:26:22 Ping Of Death from 23.133.64.100 to 공유기 droped
10/13/2024 02:00:41 Ping Of Death from 218.98.6.201 to 공유기 droped
10/13/2024 02:01:00 Ping Of Death from 45.116.14.27 to 공유기 droped
10/13/2024 02:03:58 Ping Of Death from 45.131.71.130 to 공유기 droped
10/13/2024 02:20:10 Ping Of Death from 120.246.123.50 to 공유기 droped
10/13/2024 02:25:11 Ping Of Death from 43.128.69.194 to 공유기 droped
10/13/2024 02:56:18 Ping Of Death from 81.70.59.196 to 공유기 droped
10/13/2024 03:06:05 Ping Of Death from 54.88.147.30 to 공유기 droped
10/13/2024 03:22:41 Ping Of Death from 185.94.111.1 to 공유기 droped
10/13/2024 03:46:50 Ping Of Death from 119.188.182.153 to 공유기 droped
10/13/2024 04:03:02 Ping Of Death from 112.81.91.191 to 공유기 droped
10/13/2024 04:16:48 Ping Of Death from 83.243.123.42 to 공유기 droped
10/13/2024 04:26:46 Ping Of Death from 52.81.253.27 to 공유기 droped
10/13/2024 04:31:28 Ping Of Death from 46.197.151.252 to 공유기 droped
10/13/2024 04:44:35 Ping Of Death from 44.223.77.145 to 공유기 droped
10/13/2024 04:46:27 Ping Of Death from 82.117.252.121 to 공유기 droped
10/13/2024 04:48:09 Ping Of Death from 61.147.171.2 to 공유기 droped
10/13/2024 04:54:17 Ping Of Death from 172.104.94.121 to 공유기 droped
10/13/2024 05:29:15 Ping Of Death from 107.20.15.252 to 공유기 droped
10/13/2024 05:38:35 Ping Of Death from 45.205.128.35 to 공유기 droped
10/13/2024 05:42:39 Ping Of Death from 43.130.90.69 to 공유기 droped
10/13/2024 05:45:36 Ping Of Death from 119.188.182.154 to 공유기 droped
10/13/2024 05:52:47 Ping Of Death from 222.175.101.108 to 공유기 droped
10/13/2024 05:53:48 Ping Of Death from 38.54.114.144 to 공유기 droped
10/13/2024 06:03:50 Ping Of Death from 117.144.213.77 to 공유기 droped
10/13/2024 06:21:56 Ping Of Death from 111.6.188.167 to 공유기 droped
10/13/2024 06:25:25 Ping Of Death from 154.213.184.3 to 공유기 droped
10/13/2024 06:46:30 Ping Of Death from 37.221.111.109 to 공유기 droped
10/13/2024 06:49:35 Ping Of Death from 43.156.12.125 to 공유기 droped
10/13/2024 06:56:27 Ping Of Death from 194.156.155.240 to 공유기 droped
10/13/2024 07:24:58 Ping Of Death from 43.192.8.195 to 공유기 droped
10/13/2024 07:39:32 Ping Of Death from 118.113.198.159 to 공유기 droped
10/13/2024 07:53:38 Ping Of Death from 54.222.204.141 to 공유기 droped
10/13/2024 08:00:06 Ping Of Death from 34.246.194.243 to 공유기 droped
10/13/2024 08:01:50 Ping Of Death from 219.151.22.113 to 공유기 droped
10/13/2024 08:03:50 Ping Of Death from 154.213.184.3 to 공유기 droped
10/13/2024 08:10:21 Ping Of Death from 185.237.185.78 to 공유기 droped
10/13/2024 08:17:06 Ping Of Death from 195.123.211.33 to 공유기 droped
10/13/2024 08:22:53 Ping Of Death from 103.127.124.47 to 공유기 droped
10/13/2024 08:25:56 Ping Of Death from 101.6.8.174 to 공유기 droped
10/13/2024 08:39:48 Ping Of Death from 116.142.242.181 to 공유기 droped
10/13/2024 09:03:03 Ping Of Death from 27.148.249.65 to 공유기 droped
10/13/2024 09:03:32 Ping Of Death from 208.115.230.98 to 공유기 droped
10/13/2024 09:09:18 Ping Of Death from 170.39.227.143 to 공유기 droped
10/13/2024 09:21:47 Ping Of Death from 52.200.19.184 to 공유기 droped
10/13/2024 09:23:51 Ping Of Death from 170.106.14.53 to 공유기 droped
10/13/2024 09:27:10 Ping Of Death from 52.80.238.175 to 공유기 droped
10/13/2024 09:30:59 Ping Of Death from 43.156.12.125 to 공유기 droped
10/13/2024 09:47:48 Ping Of Death from 91.148.134.214 to 공유기 droped
10/13/2024 09:54:43 Ping Of Death from 59.80.30.244 to 공유기 droped
10/13/2024 10:15:41 Ping Of Death from 103.199.18.125 to 공유기 droped
10/13/2024 10:26:05 Ping Of Death from 102.213.6.53 to 공유기 droped
10/13/2024 10:32:06 Ping Of Death from 54.225.49.201 to 공유기 droped
10/13/2024 10:33:10 Ping Of Death from 71.136.112.66 to 공유기 droped
10/13/2024 11:05:44 Ping Of Death from 61.147.171.3 to 공유기 droped
10/13/2024 11:06:26 Ping Of Death from 107.155.46.37 to 공유기 droped
10/13/2024 11:14:04 Ping Of Death from 89.31.122.134 to 공유기 droped
10/13/2024 11:15:30 Ping Of Death from 38.54.38.58 to 공유기 droped
10/13/2024 11:23:57 Ping Of Death from 36.99.169.39 to 공유기 droped
10/13/2024 11:54:01 Syn flood From IP 45.148.10.81 port 27769 to IP 공유기 port 53 droped
10/13/2024 11:54:01 Vecna Scan from IP 45.148.10.81 port 27769 to IP 공유기 port 53 droped
10/13/2024 12:40:00 Ping Of Death from 52.81.237.148 to 공유기 droped
10/13/2024 12:48:52 Ping Of Death from 13.114.34.80 to 공유기 droped
10/13/2024 12:50:36 Ping Of Death from 162.62.58.193 to 공유기 droped
10/13/2024 12:54:46 Ping Of Death from 35.172.109.225 to 공유기 droped
10/13/2024 12:57:26 Ping Of Death from 27.159.66.79 to 공유기 droped
10/13/2024 13:01:27 Ping Of Death from 195.49.210.25 to 공유기 droped
10/13/2024 13:01:36 Ping Of Death from 208.115.216.193 to 공유기 droped
10/13/2024 13:16:00 Ping Of Death from 43.128.69.194 to 공유기 droped
세상의모든계산기 님의 최근 댓글
고장남 - POST 진입 실패, 모니터 안나옴 직접 사용할 일이 없어져서, 고향집에 가져다 놓고 어댑터만 꼽아 두었습니다. 마지막으로 켠 것은 25년 6월쯤이 아니었을까 싶습니다. (이상증상은 없었구요) 이번 추석에 가서 켜 보니까, 화면이 아예 안나오더라구요. 집에 가져와서 분해해 살펴보니까 - 어댑터 12V는 정상 - 어댑터 꼽으면 바로 POWER 는 켜집니다. ㄴ POWER ON -> Fan 돌아감 + 파워 LED 들어옴 + NVME에 LED 들어옴 ㄴ HDMI 1, 2 신호 전혀 안들어옴 (모니터 2대 확인) ㄴ 키보드에 LED 안들어옴 (USB 5V 가 안들어오는 듯 함) - 옆구리 버튼은 작동하지 않습니다. 길게 눌러도 꺼지지 않음. 하나씩 제거하면서 변수를 제거해 봤는데, 뭘 해도 상태가 똑같습니다. 보드쪽에 문제가 생긴 것 같습니다. 2025 10.14 다항식 나눗셈 (가장 정석적인 방법) (피제수, 나뉠 식) r1*r3 를 (제수, 나누는 식) r1+r3 로 직접 나누며, 여기서 r1을 변수로 취급합니다. 1. 몫 구하기: r1*r3 (나뉠 식)의 최고차항을 r1+r3 (나누는 식)의 최고차항 r1로 나눕니다. (r1*r3) / r1 = r3 <-- 이것이 몫(Quotient)이 됩니다. 2. 나머지 구하기: (원래 분자) - (몫 × 분모) 를 계산합니다. (r1*r3) - (r3 × (r1+r3)) = r1*r3 - (r1*r3 + r3^2) = -r3^2 <-- 이것이 나머지(Remainder)가 됩니다. 3. 결과 조합: 최종 결과는 `몫 + (나머지 / 나누는 식)` 형태로 씁니다. r3 + (-r3^2 / (r1+r3)) \[ \begin{array}{l} \phantom{r_1+r_3 \overline{) r_1 r_3}} r_3 \\ r_1+r_3 \overline{) \begin{array}[t]{@{}r@{}} r_1 r_3 \phantom{+r_3^2} \\ - (r_1 r_3 + r_3^2) \\ \hline -r_3^2 \\ \end{array}} \end{array} \] 2025 10.14 부분적 과정으로 분자(변수의 곱)를 다른 변수로 치환할 수 있다면 (r1*r3=a, r2*r4=b) 다항식에서도 강제 나눗셈 과정을 막을 수 있겠습니다만, 원래의 식에 적용시킬 수는 없어 의미가 없겠습니다. 2025 10.14 (r1*r3) / (r1+r3) 에서 원래라면 분자(r1*r3)에서 하나의 변수를 선택하여 그것을 기준으로 분모를 나누고 몫과 나머지로 분리하여 표현하는 것이 기본 원칙입니다만, 결과가 단항인 분수식일 경우 분자가 두 변수의 곱으로 표현되더라도 그것이 더 간단한 표현인 것으로 보고 그대로 두는 듯 합니다. 하지만 마지막 예시에서 보이는 것처럼 +1만 붙는 간단한 형식일지라도 다항식이 되는 순간 원래의 기본 원칙대로 대수의 나눗셈(r1*r3를 (r1+r3)로 나눔)이 강제 진행되어버리고 이를 막을 수 없는 듯 합니다. 2025 10.14 낮에 TV에서 영화 '말모이' 해주더라구요. 그래서 한번 물어 봤습니다. 2025 10.10