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Dec 10 20:07:08 tdfoods sshd\[21536\]: Invalid user 1234 from 91.121.7.155
Dec 10 20:07:08 tdfoods sshd\[21536\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ns37845.ip-91-121-7.eu
Dec 10 20:07:10 tdfoods sshd\[21536\]: Failed password for invalid user 1234 from 91.121.7.155 port 51211 ssh2
Dec 10 20:12:21 tdfoods sshd\[22154\]: Invalid user password from 91.121.7.155
Dec 10 20:12:21 tdfoods sshd\[22154\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ns37845.ip-91-121-7.eu

Dec 11 06:23:15 hcbbdb sshd\[19678\]: Invalid user marriet from 191.243.143.170
Dec 11 06:23:15 hcbbdb sshd\[19678\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.243.143.170
Dec 11 06:23:16 hcbbdb sshd\[19678\]: Failed password for invalid user marriet from 191.243.143.170 port 37264 ssh2
Dec 11 06:30:36 hcbbdb sshd\[21309\]: Invalid user woodline from 191.243.143.170
Dec 11 06:30:36 hcbbdb sshd\[21309\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.243.143.170

Dec 11 06:37:00 localhost sshd\[25666\]: Invalid user mazlina from 146.148.105.126 port 54768
Dec 11 06:37:00 localhost sshd\[25666\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=146.148.105.126
Dec 11 06:37:02 localhost sshd\[25666\]: Failed password for invalid user mazlina from 146.148.105.126 port 54768 ssh2

fail2ban

Dec 11 07:33:59 server sshd\[25693\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.204.11.222  user=root
Dec 11 07:34:01 server sshd\[25693\]: Failed password for root from 129.204.11.222 port 47236 ssh2
Dec 11 07:46:38 server sshd\[29527\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.204.11.222  user=root
Dec 11 07:46:40 server sshd\[29527\]: Failed password for root from 129.204.11.222 port 59341 ssh2
Dec 11 07:54:25 server sshd\[31577\]: Invalid user ulrica from 129.204.11.222
...

2019-12-11T06:30:40.100216abusebot-5.cloudsearch.cf sshd\[5523\]: Invalid user codd from 206.189.114.0 port 48388

2019-12-11 06:08:18,900 fail2ban.actions: WARNING [ssh] Ban 210.74.11.97

Invalid user castis from 219.141.176.186 port 33802

Unauthorized connection attempt detected from IP address 59.97.22.37 to port 445

$f2bV_matches

F2B jail: sshd. Time: 2019-12-11 07:07:14, Reported by: VKReport

Dec 11 07:36:07 mail sshd[19105]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.108.215 
Dec 11 07:36:09 mail sshd[19105]: Failed password for invalid user byrud from 182.61.108.215 port 36472 ssh2
Dec 11 07:42:02 mail sshd[20086]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.108.215

Unauthorized connection attempt detected from IP address 197.45.68.53 to port 445

Dec 11 07:30:31 mail kernel: [1065576.034056] [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3d:86:ee:00:08:e3:ff:fd:90:08:00 SRC=221.0.16.63 DST=91.205.173.180 LEN=60 TOS=0x00 PREC=0x00 TTL=48 ID=10016 DF PROTO=TCP SPT=54978 DPT=8081 WINDOW=14100 RES=0x00 SYN URGP=0 
Dec 11 07:30:32 mail kernel: [1065577.036995] [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3d:86:ee:00:08:e3:ff:fd:90:08:00 SRC=221.0.16.63 DST=91.205.173.180 LEN=60 TOS=0x00 PREC=0x00 TTL=48 ID=10017 DF PROTO=TCP SPT=54978 DPT=8081 WINDOW=14100 RES=0x00 SYN URGP=0 
Dec 11 07:30:34 mail kernel: [1065579.307818] [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3d:86:ee:00:08:e3:ff:fd:90:08:00 SRC=221.0.16.63 DST=91.205.173.180 LEN=60 TOS=0x00 PREC=0x00 TTL=48 ID=19519 DF PROTO=TCP SPT=34564 DPT=81 WINDOW=14100 RES=0x00 SYN URGP=0

2019-12-10T23:53:14.351050homeassistant sshd[6260]: Failed password for invalid user reifers from 61.50.123.182 port 54108 ssh2
2019-12-11T04:54:22.928213homeassistant sshd[14968]: Invalid user marcar from 61.50.123.182 port 53522
2019-12-11T04:54:22.934847homeassistant sshd[14968]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=61.50.123.182
...