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 <<>> 121.157.55.126
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 41890
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;121.157.55.126.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025020201 1800 900 604800 86400

;; Query time: 12 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon Feb 03 12:33:08 CST 2025
;; MSG SIZE  rcvd: 107
Host info
Host 126.55.157.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 126.55.157.121.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
103.253.146.142 attack
1601724353 - 10/03/2020 13:25:53 Host: 103.253.146.142/103.253.146.142 Port: 540 TCP Blocked
2020-10-03 21:17:44
157.230.245.91 attackspam
Invalid user switch from 157.230.245.91 port 43234
2020-10-03 21:02:36
170.239.226.27 attack
Oct  2 16:26:59 josie sshd[27931]: Did not receive identification string from 170.239.226.27
Oct  2 16:26:59 josie sshd[27930]: Did not receive identification string from 170.239.226.27
Oct  2 16:26:59 josie sshd[27932]: Did not receive identification string from 170.239.226.27
Oct  2 16:26:59 josie sshd[27933]: Did not receive identification string from 170.239.226.27
Oct  2 16:27:04 josie sshd[27961]: Invalid user admina from 170.239.226.27
Oct  2 16:27:04 josie sshd[27959]: Invalid user admina from 170.239.226.27
Oct  2 16:27:04 josie sshd[27956]: Invalid user admina from 170.239.226.27
Oct  2 16:27:04 josie sshd[27958]: Invalid user admina from 170.239.226.27
Oct  2 16:27:04 josie sshd[27961]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=170.239.226.27 
Oct  2 16:27:04 josie sshd[27959]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=170.239.226.27 
Oct  2 16:27:04 josie sshd[27956]:........
-------------------------------
2020-10-03 20:50:04
175.137.104.57 attack
Lines containing failures of 175.137.104.57 (max 1000)
Oct  2 22:27:37 srv sshd[98150]: Connection closed by 175.137.104.57 port 61298
Oct  2 22:27:40 srv sshd[98151]: Invalid user 666666 from 175.137.104.57 port 61479
Oct  2 22:27:40 srv sshd[98151]: Connection closed by invalid user 666666 175.137.104.57 port 61479 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=175.137.104.57
2020-10-03 20:55:42
61.155.2.142 attackspam
Invalid user cedric from 61.155.2.142 port 41089
2020-10-03 20:58:15
71.6.232.8 attackspam
 TCP (SYN) 71.6.232.8:44996 -> port 2379, len 44
2020-10-03 22:01:23
83.239.38.2 attackspambots
Oct  3 06:55:47 plex-server sshd[2747404]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=83.239.38.2 
Oct  3 06:55:47 plex-server sshd[2747404]: Invalid user test1 from 83.239.38.2 port 51854
Oct  3 06:55:50 plex-server sshd[2747404]: Failed password for invalid user test1 from 83.239.38.2 port 51854 ssh2
Oct  3 06:59:48 plex-server sshd[2749041]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=83.239.38.2  user=root
Oct  3 06:59:51 plex-server sshd[2749041]: Failed password for root from 83.239.38.2 port 59256 ssh2
...
2020-10-03 20:54:21
2.58.230.41 attackbots
2020-10-03T18:23:59.216273hostname sshd[60059]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=2.58.230.41  user=root
2020-10-03T18:24:01.527634hostname sshd[60059]: Failed password for root from 2.58.230.41 port 48274 ssh2
...
2020-10-03 21:55:23
159.65.154.48 attack
[N3.H3.VM3] Port Scanner Detected Blocked by UFW
2020-10-03 21:55:53
114.67.254.244 attackbotsspam
Invalid user galaxy from 114.67.254.244 port 46920
2020-10-03 20:44:03
83.97.20.35 attack
IP was detected trying to Brute-Force SSH, FTP, Web Apps, Port-Scan or Hacking.
2020-10-03 22:00:50
49.88.112.65 attack
Oct  3 13:46:48 email sshd\[8402\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.65  user=root
Oct  3 13:46:50 email sshd\[8402\]: Failed password for root from 49.88.112.65 port 46663 ssh2
Oct  3 13:49:34 email sshd\[8860\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.65  user=root
Oct  3 13:49:36 email sshd\[8860\]: Failed password for root from 49.88.112.65 port 20484 ssh2
Oct  3 13:50:21 email sshd\[8998\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.65  user=root
...
2020-10-03 21:56:32
190.167.244.87 attack
Lines containing failures of 190.167.244.87
Oct  2 22:27:15 shared04 sshd[2191]: Did not receive identification string from 190.167.244.87 port 3192
Oct  2 22:27:17 shared04 sshd[2195]: Invalid user user1 from 190.167.244.87 port 3994
Oct  2 22:27:17 shared04 sshd[2195]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.167.244.87
Oct  2 22:27:19 shared04 sshd[2195]: Failed password for invalid user user1 from 190.167.244.87 port 3994 ssh2
Oct  2 22:27:20 shared04 sshd[2195]: Connection closed by invalid user user1 190.167.244.87 port 3994 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=190.167.244.87
2020-10-03 20:53:20
89.233.112.6 attackspambots
 TCP (SYN) 89.233.112.6:58236 -> port 23, len 44
2020-10-03 20:48:21
191.23.113.164 attack
Oct  2 22:34:06 mx01 sshd[15750]: reveeclipse mapping checking getaddrinfo for 191-23-113-164.user.vivozap.com.br [191.23.113.164] failed - POSSIBLE BREAK-IN ATTEMPT!
Oct  2 22:34:06 mx01 sshd[15750]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.23.113.164  user=r.r
Oct  2 22:34:08 mx01 sshd[15750]: Failed password for r.r from 191.23.113.164 port 53720 ssh2
Oct  2 22:34:08 mx01 sshd[15750]: Received disconnect from 191.23.113.164: 11: Bye Bye [preauth]
Oct  2 22:34:10 mx01 sshd[15754]: reveeclipse mapping checking getaddrinfo for 191-23-113-164.user.vivozap.com.br [191.23.113.164] failed - POSSIBLE BREAK-IN ATTEMPT!
Oct  2 22:34:11 mx01 sshd[15754]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.23.113.164  user=r.r
Oct  2 22:34:12 mx01 sshd[15754]: Failed password for r.r from 191.23.113.164 port 53804 ssh2
Oct  2 22:34:12 mx01 sshd[15754]: Received disconnect from 191.23.113.1........
-------------------------------
2020-10-03 21:10:38

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