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: Korea (the Republic of)

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 <<>> 121.138.51.121
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4198
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;121.138.51.121.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025020602 1800 900 604800 86400

;; Query time: 35 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 07 07:11:37 CST 2025
;; MSG SIZE  rcvd: 107
Host info
Host 121.51.138.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 121.51.138.121.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
117.33.137.19 attackbotsspam
"$f2bV_matches"
2020-08-03 19:59:41
51.195.28.120 attack
 TCP (SYN) 51.195.28.120:43672 -> port 22, len 44
2020-08-03 19:26:46
112.85.42.104 attackspambots
2020-08-03T14:56:51.081325lavrinenko.info sshd[4752]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.104  user=root
2020-08-03T14:56:53.321622lavrinenko.info sshd[4752]: Failed password for root from 112.85.42.104 port 53497 ssh2
2020-08-03T14:56:51.081325lavrinenko.info sshd[4752]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.104  user=root
2020-08-03T14:56:53.321622lavrinenko.info sshd[4752]: Failed password for root from 112.85.42.104 port 53497 ssh2
2020-08-03T14:56:57.483444lavrinenko.info sshd[4752]: Failed password for root from 112.85.42.104 port 53497 ssh2
...
2020-08-03 20:00:01
116.236.200.254 attack
Aug  3 13:43:30 PorscheCustomer sshd[27690]: Failed password for root from 116.236.200.254 port 35802 ssh2
Aug  3 13:46:10 PorscheCustomer sshd[27749]: Failed password for root from 116.236.200.254 port 49220 ssh2
...
2020-08-03 19:55:54
173.212.219.207 attackbotsspam
1596428639 - 08/03/2020 06:23:59 Host: 173.212.219.207/173.212.219.207 Port: 69 UDP Blocked
...
2020-08-03 19:29:12
180.95.183.214 attack
 TCP (SYN) 180.95.183.214:59031 -> port 19563, len 44
2020-08-03 19:17:20
62.234.164.238 attack
$f2bV_matches
2020-08-03 19:44:47
1.6.103.18 attackspambots
Aug  3 10:52:34 *** sshd[7909]: User root from 1.6.103.18 not allowed because not listed in AllowUsers
2020-08-03 19:45:39
103.125.218.203 attack
Sending spam emails with phishing URL inside the emails.
2020-08-03 19:49:20
113.161.79.191 attack
reported through recidive - multiple failed attempts(SSH)
2020-08-03 19:50:25
132.145.159.137 attackspambots
2020-08-03T05:55:12.2521331495-001 sshd[9527]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.145.159.137  user=root
2020-08-03T05:55:14.1321261495-001 sshd[9527]: Failed password for root from 132.145.159.137 port 51892 ssh2
2020-08-03T05:59:05.1854791495-001 sshd[9687]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.145.159.137  user=root
2020-08-03T05:59:06.3832851495-001 sshd[9687]: Failed password for root from 132.145.159.137 port 36574 ssh2
2020-08-03T06:03:01.2841091495-001 sshd[9889]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.145.159.137  user=root
2020-08-03T06:03:03.2144351495-001 sshd[9889]: Failed password for root from 132.145.159.137 port 49494 ssh2
...
2020-08-03 19:46:05
187.214.76.109 attackspambots
Automatic report - Port Scan Attack
2020-08-03 19:41:23
89.90.209.252 attack
SSH auth scanning - multiple failed logins
2020-08-03 19:58:14
158.140.173.212 attackbotsspam
Dovecot Invalid User Login Attempt.
2020-08-03 19:17:40
179.181.21.112 attackspambots
"XSS Attack Detected via libinjection - Matched Data: XSS data found within ARGS_NAMES:
2020-08-03 19:51:47

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