Must be a valid IPv4 or IPv6 ip address, e.g. 127.0.0.1 or 2001:DB8:0:0:8:800:200C:417A
Basic Info

City: unknown

Region: unknown

Country: China

Internet Service Provider: Tencent Cloud Computing (Beijing) Co. Ltd.

Hostname: unknown

Organization: unknown

Usage Type: Data Center/Web Hosting/Transit

Comments:
Type Details Datetime
attack
Aug 27 20:32:35 lcdev sshd\[25614\]: Invalid user ross from 139.155.156.55
Aug 27 20:32:35 lcdev sshd\[25614\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.155.156.55
Aug 27 20:32:38 lcdev sshd\[25614\]: Failed password for invalid user ross from 139.155.156.55 port 42792 ssh2
Aug 27 20:38:50 lcdev sshd\[26258\]: Invalid user yamaguchi from 139.155.156.55
Aug 27 20:38:50 lcdev sshd\[26258\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.155.156.55
2019-08-28 14:55:34
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 139.155.156.55
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 35284
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;139.155.156.55.			IN	A

;; AUTHORITY SECTION:
.			3600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019082800 1800 900 604800 86400

;; Query time: 4 msec
;; SERVER: 67.207.67.2#53(67.207.67.2)
;; WHEN: Wed Aug 28 14:55:18 CST 2019
;; MSG SIZE  rcvd: 118
Host info
Host 55.156.155.139.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		67.207.67.2
Address:	67.207.67.2#53

** server can't find 55.156.155.139.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
132.232.41.170 attackspambots
Jun  4 07:10:30 ny01 sshd[27289]: Failed password for root from 132.232.41.170 port 38795 ssh2
Jun  4 07:11:40 ny01 sshd[27435]: Failed password for root from 132.232.41.170 port 44456 ssh2
2020-06-04 19:40:18
157.230.216.233 attackbotsspam
2020-06-04T13:42:45.0235841240 sshd\[4005\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.216.233  user=root
2020-06-04T13:42:46.5444031240 sshd\[4005\]: Failed password for root from 157.230.216.233 port 59734 ssh2
2020-06-04T13:47:10.8237751240 sshd\[4221\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.216.233  user=root
...
2020-06-04 19:51:22
114.25.151.43 attackspam
Unauthorized connection attempt from IP address 114.25.151.43 on Port 445(SMB)
2020-06-04 20:01:48
117.5.87.8 attackspam
Unauthorized connection attempt from IP address 117.5.87.8 on Port 445(SMB)
2020-06-04 19:48:12
114.67.72.229 attack
SSH invalid-user multiple login try
2020-06-04 20:16:01
60.29.31.98 attack
$f2bV_matches
2020-06-04 20:19:48
113.175.240.101 attack
Unauthorized connection attempt from IP address 113.175.240.101 on Port 445(SMB)
2020-06-04 19:43:16
74.82.47.54 attack
firewall-block, port(s): 50075/tcp
2020-06-04 20:13:52
213.137.179.203 attack
Jun  4 14:03:16 inter-technics sshd[7688]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.137.179.203  user=root
Jun  4 14:03:18 inter-technics sshd[7688]: Failed password for root from 213.137.179.203 port 52458 ssh2
Jun  4 14:06:42 inter-technics sshd[7945]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.137.179.203  user=root
Jun  4 14:06:43 inter-technics sshd[7945]: Failed password for root from 213.137.179.203 port 37593 ssh2
Jun  4 14:10:00 inter-technics sshd[8189]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.137.179.203  user=root
Jun  4 14:10:02 inter-technics sshd[8189]: Failed password for root from 213.137.179.203 port 4761 ssh2
...
2020-06-04 20:13:32
45.251.231.37 attackbots
Automatic report - Port Scan Attack
2020-06-04 20:10:50
106.12.88.95 attackbots
Jun  4 12:01:42 game-panel sshd[14081]: Failed password for root from 106.12.88.95 port 49962 ssh2
Jun  4 12:05:46 game-panel sshd[14291]: Failed password for root from 106.12.88.95 port 41212 ssh2
2020-06-04 20:12:19
106.75.53.49 attackbotsspam
2020-06-04T10:21:29.444983v22018076590370373 sshd[21116]: Failed password for root from 106.75.53.49 port 52676 ssh2
2020-06-04T10:24:50.501017v22018076590370373 sshd[24176]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.75.53.49  user=root
2020-06-04T10:24:52.791413v22018076590370373 sshd[24176]: Failed password for root from 106.75.53.49 port 44392 ssh2
2020-06-04T10:28:05.243998v22018076590370373 sshd[30211]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.75.53.49  user=root
2020-06-04T10:28:06.966948v22018076590370373 sshd[30211]: Failed password for root from 106.75.53.49 port 36110 ssh2
...
2020-06-04 19:48:36
187.72.51.130 attackbotsspam
Unauthorized connection attempt from IP address 187.72.51.130 on Port 445(SMB)
2020-06-04 20:08:27
1.2.230.16 attack
Unauthorized connection attempt from IP address 1.2.230.16 on Port 445(SMB)
2020-06-04 19:58:39
220.163.107.130 attack
Jun  4 10:58:45 ns382633 sshd\[26135\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=220.163.107.130  user=root
Jun  4 10:58:47 ns382633 sshd\[26135\]: Failed password for root from 220.163.107.130 port 65298 ssh2
Jun  4 11:16:26 ns382633 sshd\[29401\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=220.163.107.130  user=root
Jun  4 11:16:28 ns382633 sshd\[29401\]: Failed password for root from 220.163.107.130 port 30531 ssh2
Jun  4 11:19:11 ns382633 sshd\[29680\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=220.163.107.130  user=root
2020-06-04 19:53:07

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