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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 157.21.81.211
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 31033
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;157.21.81.211.			IN	A

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

;; Query time: 32 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 07 06:38:15 CST 2025
;; MSG SIZE  rcvd: 106
Host info
Host 211.81.21.157.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 211.81.21.157.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
31.179.144.190 attackspambots
Sep 21 15:23:38 home sshd[2726]: Invalid user admin from 31.179.144.190 port 33035
Sep 21 15:23:38 home sshd[2726]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=31.179.144.190
Sep 21 15:23:38 home sshd[2726]: Invalid user admin from 31.179.144.190 port 33035
Sep 21 15:23:40 home sshd[2726]: Failed password for invalid user admin from 31.179.144.190 port 33035 ssh2
Sep 21 15:44:45 home sshd[2792]: Invalid user recepcao from 31.179.144.190 port 34790
Sep 21 15:44:45 home sshd[2792]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=31.179.144.190
Sep 21 15:44:45 home sshd[2792]: Invalid user recepcao from 31.179.144.190 port 34790
Sep 21 15:44:47 home sshd[2792]: Failed password for invalid user recepcao from 31.179.144.190 port 34790 ssh2
Sep 21 15:48:38 home sshd[2800]: Invalid user user01 from 31.179.144.190 port 55440
Sep 21 15:48:38 home sshd[2800]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh rus
2019-09-22 07:00:52
74.63.255.138 attack
\[2019-09-21 18:57:59\] NOTICE\[2270\] chan_sip.c: Registration from '"104" \' failed for '74.63.255.138:5417' - Wrong password
\[2019-09-21 18:57:59\] SECURITY\[2283\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-21T18:57:59.746-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="104",SessionID="0x7fcd8c1615d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/74.63.255.138/5417",Challenge="12e9a994",ReceivedChallenge="12e9a994",ReceivedHash="f622ae21f4a2bc49f1a062e61c5da4ba"
\[2019-09-21 18:57:59\] NOTICE\[2270\] chan_sip.c: Registration from '"104" \' failed for '74.63.255.138:5417' - Wrong password
\[2019-09-21 18:57:59\] SECURITY\[2283\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-21T18:57:59.846-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="104",SessionID="0x7fcd8c297358",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/74.6
2019-09-22 07:06:40
45.55.80.186 attackspambots
Triggered by Fail2Ban at Vostok web server
2019-09-22 07:04:37
177.69.237.49 attack
Sep 21 12:42:50 php1 sshd\[29198\]: Invalid user clerezza from 177.69.237.49
Sep 21 12:42:50 php1 sshd\[29198\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.69.237.49
Sep 21 12:42:52 php1 sshd\[29198\]: Failed password for invalid user clerezza from 177.69.237.49 port 55830 ssh2
Sep 21 12:48:02 php1 sshd\[29670\]: Invalid user tomcat from 177.69.237.49
Sep 21 12:48:02 php1 sshd\[29670\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.69.237.49
2019-09-22 07:00:05
182.61.43.47 attack
Sep 21 18:51:22 ny01 sshd[11163]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.43.47
Sep 21 18:51:24 ny01 sshd[11163]: Failed password for invalid user orangepi from 182.61.43.47 port 35854 ssh2
Sep 21 18:56:12 ny01 sshd[12344]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.43.47
2019-09-22 07:08:48
128.199.224.73 attack
Sep 22 00:22:05 DAAP sshd[6897]: Invalid user gmodserver from 128.199.224.73 port 52545
Sep 22 00:22:05 DAAP sshd[6897]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.224.73
Sep 22 00:22:05 DAAP sshd[6897]: Invalid user gmodserver from 128.199.224.73 port 52545
Sep 22 00:22:07 DAAP sshd[6897]: Failed password for invalid user gmodserver from 128.199.224.73 port 52545 ssh2
Sep 22 00:27:40 DAAP sshd[6990]: Invalid user wildfly from 128.199.224.73 port 48155
...
2019-09-22 06:55:25
197.96.136.91 attackbots
Sep 21 23:44:07 vps691689 sshd[29195]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=197.96.136.91
Sep 21 23:44:09 vps691689 sshd[29195]: Failed password for invalid user tristan from 197.96.136.91 port 39757 ssh2
Sep 21 23:49:24 vps691689 sshd[29314]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=197.96.136.91
...
2019-09-22 07:16:12
51.91.37.17 attack
This IP was base64-encrypted a suspicious executable: https://www.virustotal.com/gui/file/500f89b76501ff246b9441bf80ef0d2dc91f810460f5645581c087cffaa2383d/
2019-09-22 07:02:35
45.141.84.19 attackspam
scan z
2019-09-22 07:09:36
112.64.137.178 attack
Sep 21 23:34:10 [snip] sshd[26835]: Invalid user nexus from 112.64.137.178 port 1888
Sep 21 23:34:10 [snip] sshd[26835]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.64.137.178
Sep 21 23:34:12 [snip] sshd[26835]: Failed password for invalid user nexus from 112.64.137.178 port 1888 ssh2[...]
2019-09-22 06:56:33
111.230.29.17 attackbots
Sep 21 23:33:38 srv206 sshd[9562]: Invalid user password from 111.230.29.17
...
2019-09-22 07:20:00
222.186.31.136 attack
Sep 21 18:47:55 plusreed sshd[358]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.31.136  user=root
Sep 21 18:47:57 plusreed sshd[358]: Failed password for root from 222.186.31.136 port 11751 ssh2
...
2019-09-22 07:06:58
77.92.125.16 attack
47 failed attempt(s) in the last 24h
2019-09-22 06:59:20
220.163.107.130 attackspam
Sep 21 23:17:33 game-panel sshd[30262]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=220.163.107.130
Sep 21 23:17:35 game-panel sshd[30262]: Failed password for invalid user fish from 220.163.107.130 port 48374 ssh2
Sep 21 23:19:54 game-panel sshd[30327]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=220.163.107.130
2019-09-22 07:26:59
198.108.67.82 attack
09/21/2019-17:34:08.077348 198.108.67.82 Protocol: 6 ET DROP Dshield Block Listed Source group 1
2019-09-22 06:58:02

Recently Reported IPs

248.242.134.86 126.105.79.61 201.246.31.196 119.22.41.46
125.90.157.112 91.38.100.179 248.54.204.205 15.121.181.234
233.148.19.92 215.68.169.9 37.235.12.102 175.52.126.150
128.239.217.152 246.198.115.66 96.193.219.8 22.97.208.78
137.91.61.88 163.159.170.224 4.145.180.249 242.37.17.90