trying on port 5060

Unauthorised access (Oct  5) SRC=175.18.155.59 LEN=40 TTL=49 ID=2706 TCP DPT=8080 WINDOW=5020 SYN

2019-10-05T18:41:16.510123enmeeting.mahidol.ac.th sshd\[30997\]: User root from 159.65.144.233 not allowed because not listed in AllowUsers
2019-10-05T18:41:16.638508enmeeting.mahidol.ac.th sshd\[30997\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.144.233  user=root
2019-10-05T18:41:18.314238enmeeting.mahidol.ac.th sshd\[30997\]: Failed password for invalid user root from 159.65.144.233 port 27605 ssh2
...

postfix

Oct  4 19:25:27 friendsofhawaii sshd\[8221\]: Invalid user Vitoria_123 from 13.95.30.27
Oct  4 19:25:27 friendsofhawaii sshd\[8221\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=13.95.30.27
Oct  4 19:25:30 friendsofhawaii sshd\[8221\]: Failed password for invalid user Vitoria_123 from 13.95.30.27 port 39822 ssh2
Oct  4 19:30:25 friendsofhawaii sshd\[8640\]: Invalid user Angela@123 from 13.95.30.27
Oct  4 19:30:25 friendsofhawaii sshd\[8640\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=13.95.30.27

Oct  5 13:36:59 legacy sshd[8029]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.34.212
Oct  5 13:37:01 legacy sshd[8029]: Failed password for invalid user Admin111 from 106.13.34.212 port 42682 ssh2
Oct  5 13:41:40 legacy sshd[8094]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.34.212
...

Automatic report - Port Scan Attack

detected by Fail2Ban

\[2019-10-05 13:01:58\] NOTICE\[2943\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '185.117.118.187:50567' \(callid: 1035153056-1549587098-304471644\) - Failed to authenticate
\[2019-10-05 13:01:58\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-10-05T13:01:58.170+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="1035153056-1549587098-304471644",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/185.117.118.187/50567",Challenge="1570273318/7788d9d95b4d09c5c11a868ba7bfbbc5",Response="ad513b68881ad16966129809cfcde536",ExpectedResponse=""
\[2019-10-05 13:01:58\] NOTICE\[32542\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '185.117.118.187:50567' \(callid: 1035153056-1549587098-304471644\) - Failed to authenticate
\[2019-10-05 13:01:58\] SECURITY\[1715\] res_security_log.c: SecurityEvent="Challenge

Oct  5 07:55:46 xtremcommunity sshd\[203806\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.42.4  user=root
Oct  5 07:55:48 xtremcommunity sshd\[203806\]: Failed password for root from 222.186.42.4 port 62528 ssh2
Oct  5 07:55:52 xtremcommunity sshd\[203806\]: Failed password for root from 222.186.42.4 port 62528 ssh2
Oct  5 07:55:57 xtremcommunity sshd\[203806\]: Failed password for root from 222.186.42.4 port 62528 ssh2
Oct  5 07:56:02 xtremcommunity sshd\[203806\]: Failed password for root from 222.186.42.4 port 62528 ssh2
...

Oct  5 11:33:20 web8 sshd\[6456\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.112.108.98  user=root
Oct  5 11:33:22 web8 sshd\[6456\]: Failed password for root from 212.112.108.98 port 49568 ssh2
Oct  5 11:37:35 web8 sshd\[8522\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.112.108.98  user=root
Oct  5 11:37:37 web8 sshd\[8522\]: Failed password for root from 212.112.108.98 port 33566 ssh2
Oct  5 11:41:47 web8 sshd\[10491\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.112.108.98  user=root

Oct  4 22:18:08 tdfoods sshd\[21871\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=125.ip-92-222-71.eu  user=root
Oct  4 22:18:09 tdfoods sshd\[21871\]: Failed password for root from 92.222.71.125 port 58692 ssh2
Oct  4 22:22:12 tdfoods sshd\[22176\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=125.ip-92-222-71.eu  user=root
Oct  4 22:22:15 tdfoods sshd\[22176\]: Failed password for root from 92.222.71.125 port 41708 ssh2
Oct  4 22:26:09 tdfoods sshd\[22499\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=125.ip-92-222-71.eu  user=root

Oct  4 18:26:17 kapalua sshd\[18448\]: Invalid user Frog2017 from 106.75.157.9
Oct  4 18:26:17 kapalua sshd\[18448\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.75.157.9
Oct  4 18:26:18 kapalua sshd\[18448\]: Failed password for invalid user Frog2017 from 106.75.157.9 port 54466 ssh2
Oct  4 18:30:21 kapalua sshd\[18847\]: Invalid user 123Play from 106.75.157.9
Oct  4 18:30:21 kapalua sshd\[18847\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.75.157.9

Unauthorised access (Oct  5) SRC=119.155.40.30 LEN=48 TOS=0x10 PREC=0x40 TTL=113 ID=31945 DF TCP DPT=445 WINDOW=8192 SYN

Oct  5 13:41:16 MK-Soft-VM6 sshd[9326]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.122.216 
Oct  5 13:41:18 MK-Soft-VM6 sshd[9326]: Failed password for invalid user Q!w2E#r4T%y6 from 51.68.122.216 port 56614 ssh2
...