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: United States of America (the)

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 <<>> 21.19.53.81
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 847
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;21.19.53.81.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025020901 1800 900 604800 86400

;; Query time: 9 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon Feb 10 11:36:35 CST 2025
;; MSG SIZE  rcvd: 104
Host info
Host 81.53.19.21.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 81.53.19.21.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
110.9.80.195 attackbotsspam
Brute force SMTP login attempted.
...
2020-04-01 08:05:34
148.77.14.106 attackspambots
Mar 31 19:36:43 NPSTNNYC01T sshd[11499]: Failed password for root from 148.77.14.106 port 65443 ssh2
Mar 31 19:42:40 NPSTNNYC01T sshd[11869]: Failed password for root from 148.77.14.106 port 6527 ssh2
...
2020-04-01 07:47:56
45.56.78.64 attackspam
Fail2Ban Ban Triggered
2020-04-01 07:54:09
111.101.138.126 attackbotsspam
Brute force SMTP login attempted.
...
2020-04-01 07:57:09
111.10.24.147 attackspambots
Brute force SMTP login attempted.
...
2020-04-01 08:00:46
110.93.200.118 attackbots
Apr  1 01:38:19 OPSO sshd\[14775\]: Invalid user avi123 from 110.93.200.118 port 4506
Apr  1 01:38:19 OPSO sshd\[14775\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.93.200.118
Apr  1 01:38:21 OPSO sshd\[14775\]: Failed password for invalid user avi123 from 110.93.200.118 port 4506 ssh2
Apr  1 01:44:52 OPSO sshd\[15770\]: Invalid user abc12345\^\&\* from 110.93.200.118 port 8336
Apr  1 01:44:52 OPSO sshd\[15770\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.93.200.118
2020-04-01 08:02:44
111.10.43.244 attackbots
Brute force SMTP login attempted.
...
2020-04-01 07:58:27
120.70.103.40 attackbotsspam
Apr  1 01:11:06 markkoudstaal sshd[10151]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.70.103.40
Apr  1 01:11:09 markkoudstaal sshd[10151]: Failed password for invalid user qinwenwang from 120.70.103.40 port 32932 ssh2
Apr  1 01:15:16 markkoudstaal sshd[10748]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.70.103.40
2020-04-01 08:14:00
111.132.0.178 attackspambots
Brute force SMTP login attempted.
...
2020-04-01 07:43:34
111.11.195.104 attackspam
Brute force SMTP login attempted.
...
2020-04-01 07:53:53
103.45.106.55 attack
$f2bV_matches
2020-04-01 07:50:43
188.131.180.15 attackspambots
Mar 31 23:17:36 xeon sshd[35542]: Failed password for root from 188.131.180.15 port 37020 ssh2
2020-04-01 07:46:18
45.142.195.2 attackspambots
Rude login attack (1747 tries in 1d)
2020-04-01 07:59:23
190.128.171.250 attackbotsspam
Apr  1 01:34:39 markkoudstaal sshd[13549]: Failed password for root from 190.128.171.250 port 41258 ssh2
Apr  1 01:39:22 markkoudstaal sshd[14325]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.128.171.250
Apr  1 01:39:24 markkoudstaal sshd[14325]: Failed password for invalid user www from 190.128.171.250 port 55296 ssh2
2020-04-01 08:02:14
118.186.2.18 attackspambots
Apr  1 00:39:02 meumeu sshd[22043]: Failed password for root from 118.186.2.18 port 34032 ssh2
Apr  1 00:42:38 meumeu sshd[22589]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.186.2.18 
Apr  1 00:42:40 meumeu sshd[22589]: Failed password for invalid user usu\341rio from 118.186.2.18 port 59358 ssh2
...
2020-04-01 08:17:04

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