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: ChinaNet Neimeng Province Network

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
Type Details Datetime
attackspambots
Unauthorized connection attempt detected from IP address 121.57.12.42 to port 8081
2019-12-31 06:45:55
Comments on same subnet:
IP Type Details Datetime
121.57.12.151 attackbotsspam
Unauthorized connection attempt detected from IP address 121.57.12.151 to port 8118 [J]
2020-03-02 16:44:02
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 121.57.12.42
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 5983
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			434	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019123001 1800 900 604800 86400

;; Query time: 50 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Dec 31 06:45:52 CST 2019
;; MSG SIZE  rcvd: 116
Host info
Host 42.12.57.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 42.12.57.121.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
103.215.80.171 attack
Automatic report - Port Scan
2019-10-10 05:39:53
183.154.91.109 attack
Honeypot attack, port: 23, PTR: PTR record not found
2019-10-10 05:46:39
159.203.13.141 attack
Oct  9 09:57:24 wbs sshd\[6215\]: Invalid user Virgin@123 from 159.203.13.141
Oct  9 09:57:24 wbs sshd\[6215\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.13.141
Oct  9 09:57:25 wbs sshd\[6215\]: Failed password for invalid user Virgin@123 from 159.203.13.141 port 46754 ssh2
Oct  9 10:01:45 wbs sshd\[6627\]: Invalid user Liberty@2017 from 159.203.13.141
Oct  9 10:01:45 wbs sshd\[6627\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.13.141
2019-10-10 05:55:14
222.186.175.169 attackbotsspam
Oct  9 23:45:03 ovpn sshd\[25259\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.169  user=root
Oct  9 23:45:04 ovpn sshd\[25259\]: Failed password for root from 222.186.175.169 port 2338 ssh2
Oct  9 23:45:09 ovpn sshd\[25259\]: Failed password for root from 222.186.175.169 port 2338 ssh2
Oct  9 23:45:13 ovpn sshd\[25259\]: Failed password for root from 222.186.175.169 port 2338 ssh2
Oct  9 23:45:29 ovpn sshd\[25404\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.169  user=root
2019-10-10 05:51:08
134.209.97.228 attack
Oct 10 03:53:30 webhost01 sshd[18780]: Failed password for root from 134.209.97.228 port 57838 ssh2
...
2019-10-10 05:39:31
180.97.220.3 attack
" "
2019-10-10 05:37:24
164.77.119.18 attackspam
Oct  9 18:03:57 plusreed sshd[22288]: Invalid user Oscar123 from 164.77.119.18
...
2019-10-10 06:05:14
221.213.120.107 attack
Honeypot attack, port: 23, PTR: PTR record not found
2019-10-10 06:13:38
106.13.106.234 attackbots
Oct  9 23:48:40 markkoudstaal sshd[8510]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.106.234
Oct  9 23:48:42 markkoudstaal sshd[8510]: Failed password for invalid user !@#$%QWERT from 106.13.106.234 port 37514 ssh2
Oct  9 23:52:38 markkoudstaal sshd[8879]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.106.234
2019-10-10 06:06:05
81.22.45.190 attack
10/09/2019-23:39:19.124405 81.22.45.190 Protocol: 6 ET DROP Dshield Block Listed Source group 1
2019-10-10 05:44:51
37.147.197.209 attack
Honeypot attack, port: 23, PTR: 37-147-197-209.broadband.corbina.ru.
2019-10-10 05:37:42
103.111.219.2 attackspam
Honeypot attack, port: 445, PTR: PTR record not found
2019-10-10 06:09:28
195.9.17.194 attackbots
Honeypot attack, port: 5555, PTR: PTR record not found
2019-10-10 06:07:56
104.140.188.50 attackbots
Honeypot attack, port: 23, PTR: f5bf5e2.rederatural.com.
2019-10-10 06:03:00
59.55.37.204 attackspam
Lines containing failures of 59.55.37.204


........
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https://www.blocklist.de/en/view.html?ip=59.55.37.204
2019-10-10 05:38:45

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