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: Incheon

Region: Incheon Metropolitan City

Country: South Korea

Internet Service Provider: unknown

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
No discussion about this IP yet. Click above link to make one.
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 121.142.112.139
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 31834
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;121.142.112.139.		IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025021300 1800 900 604800 86400

;; Query time: 43 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 13 14:42:49 CST 2025
;; MSG SIZE  rcvd: 108
Host info
Host 139.112.142.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 139.112.142.121.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
178.128.81.60 attack
SSH Brute Force, server-1 sshd[22099]: Failed password for invalid user galluzzi from 178.128.81.60 port 35698 ssh2
2019-12-06 21:52:34
104.248.121.67 attack
Dec  6 08:55:59 root sshd[11222]: Failed password for root from 104.248.121.67 port 52984 ssh2
Dec  6 09:01:54 root sshd[11335]: Failed password for root from 104.248.121.67 port 57624 ssh2
Dec  6 09:07:37 root sshd[11476]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.248.121.67 
...
2019-12-06 21:31:44
206.81.8.14 attack
2019-12-06T13:49:18.818473stark.klein-stark.info sshd\[6057\]: Invalid user guest from 206.81.8.14 port 53330
2019-12-06T13:49:18.823884stark.klein-stark.info sshd\[6057\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=206.81.8.14
2019-12-06T13:49:20.895977stark.klein-stark.info sshd\[6057\]: Failed password for invalid user guest from 206.81.8.14 port 53330 ssh2
...
2019-12-06 21:42:20
222.186.175.167 attackspambots
Dec  6 14:53:21 dedicated sshd[5267]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.167  user=root
Dec  6 14:53:23 dedicated sshd[5267]: Failed password for root from 222.186.175.167 port 33024 ssh2
2019-12-06 21:55:01
223.150.172.58 attackspambots
FTP Brute Force
2019-12-06 21:33:39
149.129.212.221 attackspambots
Dec  6 12:27:34 areeb-Workstation sshd[24468]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=149.129.212.221 
Dec  6 12:27:35 areeb-Workstation sshd[24468]: Failed password for invalid user rpc from 149.129.212.221 port 8390 ssh2
...
2019-12-06 21:35:08
114.253.240.253 attack
Dec  6 06:52:34 mail1 sshd[9707]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=114.253.240.253  user=uucp
Dec  6 06:52:36 mail1 sshd[9707]: Failed password for uucp from 114.253.240.253 port 34156 ssh2
Dec  6 06:52:37 mail1 sshd[9707]: Received disconnect from 114.253.240.253 port 34156:11: Bye Bye [preauth]
Dec  6 06:52:37 mail1 sshd[9707]: Disconnected from 114.253.240.253 port 34156 [preauth]
Dec  6 07:18:04 mail1 sshd[11228]: Invalid user slayer from 114.253.240.253 port 46108
Dec  6 07:18:04 mail1 sshd[11228]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=114.253.240.253
Dec  6 07:18:05 mail1 sshd[11228]: Failed password for invalid user slayer from 114.253.240.253 port 46108 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=114.253.240.253
2019-12-06 21:47:09
185.176.27.254 attackbotsspam
12/06/2019-08:44:04.581819 185.176.27.254 Protocol: 6 ET SCAN NMAP -sS window 1024
2019-12-06 21:48:06
122.139.176.232 attackspambots
Scanning
2019-12-06 21:43:43
103.55.91.51 attackspam
Dec  6 14:25:24 microserver sshd[36894]: Invalid user server from 103.55.91.51 port 51238
Dec  6 14:25:24 microserver sshd[36894]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.55.91.51
Dec  6 14:25:26 microserver sshd[36894]: Failed password for invalid user server from 103.55.91.51 port 51238 ssh2
Dec  6 14:35:21 microserver sshd[38445]: Invalid user chkoreff from 103.55.91.51 port 53832
Dec  6 14:35:21 microserver sshd[38445]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.55.91.51
Dec  6 14:49:45 microserver sshd[40394]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.55.91.51  user=root
Dec  6 14:49:47 microserver sshd[40394]: Failed password for root from 103.55.91.51 port 45410 ssh2
Dec  6 14:56:35 microserver sshd[41675]: Invalid user dovecot from 103.55.91.51 port 55312
Dec  6 14:56:35 microserver sshd[41675]: pam_unix(sshd:auth): authentication failure; logname= uid=
2019-12-06 21:24:03
165.227.225.195 attackbotsspam
2019-12-06 08:42:24,647 fail2ban.actions: WARNING [ssh] Ban 165.227.225.195
2019-12-06 21:19:16
187.190.236.88 attackbotsspam
Dec  5 22:21:50 wbs sshd\[3293\]: Invalid user lansupport from 187.190.236.88
Dec  5 22:21:50 wbs sshd\[3293\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=fixed-187-190-236-88.totalplay.net
Dec  5 22:21:52 wbs sshd\[3293\]: Failed password for invalid user lansupport from 187.190.236.88 port 40014 ssh2
Dec  5 22:28:06 wbs sshd\[3861\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=fixed-187-190-236-88.totalplay.net  user=root
Dec  5 22:28:08 wbs sshd\[3861\]: Failed password for root from 187.190.236.88 port 49200 ssh2
2019-12-06 21:17:37
36.26.204.23 attackspam
Dec  6 01:11:35 esmtp postfix/smtpd[28121]: lost connection after AUTH from unknown[36.26.204.23]
Dec  6 01:11:36 esmtp postfix/smtpd[28080]: lost connection after AUTH from unknown[36.26.204.23]
Dec  6 01:11:38 esmtp postfix/smtpd[28213]: lost connection after AUTH from unknown[36.26.204.23]
Dec  6 01:11:39 esmtp postfix/smtpd[28121]: lost connection after AUTH from unknown[36.26.204.23]
Dec  6 01:11:42 esmtp postfix/smtpd[28227]: lost connection after AUTH from unknown[36.26.204.23]

........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=36.26.204.23
2019-12-06 21:23:20
1.1.229.98 attackspam
Telnetd brute force attack detected by fail2ban
2019-12-06 21:36:18
218.4.163.146 attackbots
Dec  6 14:25:47 nextcloud sshd\[20975\]: Invalid user FUWUQInet! from 218.4.163.146
Dec  6 14:25:47 nextcloud sshd\[20975\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.4.163.146
Dec  6 14:25:49 nextcloud sshd\[20975\]: Failed password for invalid user FUWUQInet! from 218.4.163.146 port 56610 ssh2
...
2019-12-06 21:33:59

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