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 (Republic of)

Internet Service Provider: KT Corporation

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 <<>> 121.173.142.4
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 61103
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			136	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020060500 1800 900 604800 86400

;; Query time: 116 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Jun 05 15:52:42 CST 2020
;; MSG SIZE  rcvd: 117
Host info
Host 4.142.173.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 4.142.173.121.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
222.186.175.23 attackspambots
Jun  1 09:18:48 plusreed sshd[4062]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.23  user=root
Jun  1 09:18:50 plusreed sshd[4062]: Failed password for root from 222.186.175.23 port 19760 ssh2
...
2020-06-01 21:20:22
222.186.169.192 attack
2020-06-01T13:19:28.971650dmca.cloudsearch.cf sshd[18646]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.169.192  user=root
2020-06-01T13:19:31.496985dmca.cloudsearch.cf sshd[18646]: Failed password for root from 222.186.169.192 port 32286 ssh2
2020-06-01T13:19:34.449013dmca.cloudsearch.cf sshd[18646]: Failed password for root from 222.186.169.192 port 32286 ssh2
2020-06-01T13:19:28.971650dmca.cloudsearch.cf sshd[18646]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.169.192  user=root
2020-06-01T13:19:31.496985dmca.cloudsearch.cf sshd[18646]: Failed password for root from 222.186.169.192 port 32286 ssh2
2020-06-01T13:19:34.449013dmca.cloudsearch.cf sshd[18646]: Failed password for root from 222.186.169.192 port 32286 ssh2
2020-06-01T13:19:28.971650dmca.cloudsearch.cf sshd[18646]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.169.192  user
...
2020-06-01 21:21:00
180.76.166.238 attackspambots
Jun  1 15:10:26 server sshd[62535]: Failed password for root from 180.76.166.238 port 40350 ssh2
Jun  1 15:14:07 server sshd[65201]: Failed password for root from 180.76.166.238 port 55684 ssh2
Jun  1 15:17:28 server sshd[2732]: Failed password for root from 180.76.166.238 port 42786 ssh2
2020-06-01 21:21:41
64.227.5.37 attackbots
Jun  1 11:59:02 vlre-nyc-1 sshd\[11493\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.227.5.37  user=root
Jun  1 11:59:04 vlre-nyc-1 sshd\[11493\]: Failed password for root from 64.227.5.37 port 44172 ssh2
Jun  1 12:04:06 vlre-nyc-1 sshd\[11689\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.227.5.37  user=root
Jun  1 12:04:08 vlre-nyc-1 sshd\[11689\]: Failed password for root from 64.227.5.37 port 49954 ssh2
Jun  1 12:09:00 vlre-nyc-1 sshd\[11859\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.227.5.37  user=root
...
2020-06-01 21:13:23
106.12.195.99 attackspam
Jun  1 12:07:25 localhost sshd\[16899\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.195.99  user=root
Jun  1 12:07:27 localhost sshd\[16899\]: Failed password for root from 106.12.195.99 port 48294 ssh2
Jun  1 12:10:36 localhost sshd\[16949\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.195.99  user=root
...
2020-06-01 21:03:20
110.52.145.241 attackbots
(ftpd) Failed FTP login from 110.52.145.241 (CN/China/-): 10 in the last 3600 secs
2020-06-01 21:17:28
201.158.2.118 attack
Jun  1 14:05:36 vpn01 sshd[10624]: Failed password for root from 201.158.2.118 port 48235 ssh2
...
2020-06-01 20:57:02
24.38.95.46 attackbotsspam
Jun  1 13:58:39 ourumov-web sshd\[14617\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=24.38.95.46  user=root
Jun  1 13:58:41 ourumov-web sshd\[14617\]: Failed password for root from 24.38.95.46 port 22607 ssh2
Jun  1 14:09:18 ourumov-web sshd\[15406\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=24.38.95.46  user=root
...
2020-06-01 20:57:50
107.182.189.89 attackbots
Jun  1 02:23:28 web9 sshd\[21371\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.182.189.89  user=root
Jun  1 02:23:30 web9 sshd\[21371\]: Failed password for root from 107.182.189.89 port 43050 ssh2
Jun  1 02:28:13 web9 sshd\[22055\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.182.189.89  user=root
Jun  1 02:28:15 web9 sshd\[22055\]: Failed password for root from 107.182.189.89 port 47162 ssh2
Jun  1 02:33:05 web9 sshd\[22791\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.182.189.89  user=root
2020-06-01 20:49:53
222.186.173.154 attackspambots
Jun  1 14:50:56 legacy sshd[10090]: Failed password for root from 222.186.173.154 port 3262 ssh2
Jun  1 14:50:59 legacy sshd[10090]: Failed password for root from 222.186.173.154 port 3262 ssh2
Jun  1 14:51:08 legacy sshd[10090]: Failed password for root from 222.186.173.154 port 3262 ssh2
Jun  1 14:51:08 legacy sshd[10090]: error: maximum authentication attempts exceeded for root from 222.186.173.154 port 3262 ssh2 [preauth]
...
2020-06-01 20:59:36
201.158.20.70 attackspambots
Fail2Ban Ban Triggered
2020-06-01 20:47:08
185.230.44.10 attackbotsspam
From: "Combat Earplugs"  185.230.44.117 - phishing redirect mospromtec.com
2020-06-01 20:52:46
101.100.129.171 attackbotsspam
2019-07-08 00:17:37 1hkFTU-0004DI-8a SMTP connection from \(101-100-129-171.myrepublic.co.nz\) \[101.100.129.171\]:11514 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-07-08 00:17:45 1hkFTc-0004DR-1S SMTP connection from \(101-100-129-171.myrepublic.co.nz\) \[101.100.129.171\]:11498 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-07-08 00:17:52 1hkFTi-0004DV-IC SMTP connection from \(101-100-129-171.myrepublic.co.nz\) \[101.100.129.171\]:11570 I=\[193.107.88.166\]:25 closed by DROP in ACL
...
2020-06-01 21:11:27
117.50.43.236 attackbots
Jun  1 14:44:16 mout sshd[16190]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=117.50.43.236  user=root
Jun  1 14:44:18 mout sshd[16190]: Failed password for root from 117.50.43.236 port 60338 ssh2
2020-06-01 20:48:14
115.84.76.223 attackspam
Dovecot Invalid User Login Attempt.
2020-06-01 21:02:12

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