lfd: (smtpauth) Failed SMTP AUTH login from 2001:ee0:4181:7455:4a7b:6bff:fef5:d537 (Unknown): 5 in the last 3600 secs - Thu Dec 27 14:36:44 2018

May  7 13:33:35 mercury wordpress(www.learnargentinianspanish.com)[25907]: XML-RPC authentication failure for josh from 171.22.254.103
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Fail2Ban Ban Triggered
HTTP Exploit Attempt

Jul 11 23:31:27 mercury auth[27279]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=josh@learnargentinianspanish.com rhost=197.45.13.178
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Sep 10 02:16:57 hanapaa sshd\[27529\]: Invalid user sftpuser from 193.150.109.152
Sep 10 02:16:57 hanapaa sshd\[27529\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.150.109.152
Sep 10 02:17:00 hanapaa sshd\[27529\]: Failed password for invalid user sftpuser from 193.150.109.152 port 12298 ssh2
Sep 10 02:22:45 hanapaa sshd\[28039\]: Invalid user testuser from 193.150.109.152
Sep 10 02:22:45 hanapaa sshd\[28039\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.150.109.152

May  7 13:58:01 mercury wordpress(www.learnargentinianspanish.com)[31542]: XML-RPC authentication failure for josh from 171.22.254.192
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Sep 10 14:12:55 ns41 sshd[15074]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.195.162.71

2019-09-10T13:30:39.686699vfs-server-01 sshd\[20196\]: Invalid user admin from 117.0.35.153 port 55948
2019-09-10T13:30:41.563030vfs-server-01 sshd\[20199\]: Invalid user admin from 117.0.35.153 port 61738
2019-09-10T13:30:43.563360vfs-server-01 sshd\[20204\]: Invalid user admin from 117.0.35.153 port 50676

Jul 30 09:27:37 mercury auth[31347]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=sales@lukegirvin.co.uk rhost=200.69.79.29
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Sep  8 06:07:42 mercury kernel: [UFW ALLOW] IN=eth0 OUT= MAC=f2:3c:91:bc:4d:f8:84:78:ac:5a:1a:41:08:00 SRC=159.253.28.197 DST=109.74.200.221 LEN=36 TOS=0x00 PREC=0x00 TTL=56 ID=0 DF PROTO=UDP SPT=37040 DPT=123 LEN=16 
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Sep 10 13:46:12 core sshd[10265]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=153.36.236.35  user=root
Sep 10 13:46:13 core sshd[10265]: Failed password for root from 153.36.236.35 port 47432 ssh2
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Jun 30 21:15:08 mercury smtpd[1186]: 46f2155b989ea795 smtp event=failed-command address=213.47.155.107 host=213-47-155-107.static.upcbusiness.at command="RCPT to:" result="550 Invalid recipient"
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Aug 22 16:56:01 mercury smtpd[4691]: b2830fbe388b314a smtp event=bad-input address=223.233.107.21 host=abts-north-dynamic-21.107.233.223.airtelbroadband.in result="500 5.5.1 Invalid command: Pipelining not supported"
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Sep 10 02:02:15 web1 sshd\[21468\]: Invalid user proxyuser from 189.163.208.217
Sep 10 02:02:15 web1 sshd\[21468\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.163.208.217
Sep 10 02:02:17 web1 sshd\[21468\]: Failed password for invalid user proxyuser from 189.163.208.217 port 35756 ssh2
Sep 10 02:08:41 web1 sshd\[22091\]: Invalid user radio from 189.163.208.217
Sep 10 02:08:41 web1 sshd\[22091\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.163.208.217

2019-08-10T05:51:00.733Z CLOSE host=113.186.41.195 port=49540 fd=6 time=50.006 bytes=70
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Aug  7 11:24:39 mercury smtpd[1187]: 17a8ca03b15a9286 smtp event=failed-command address=23.249.167.164 host=23.249.167.164 command="RCPT to:" result="550 Invalid recipient"
...