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: Hong Kong

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 <<>> 166.81.36.138
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 62798
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;166.81.36.138.			IN	A

;; AUTHORITY SECTION:
.			302	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022072702 1800 900 604800 86400

;; Query time: 58 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Jul 28 06:27:25 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 138.36.81.166.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 138.36.81.166.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
35.201.171.166 attackspambots
Nov  5 15:07:49 unicornsoft sshd\[18226\]: Invalid user test6 from 35.201.171.166
Nov  5 15:07:49 unicornsoft sshd\[18226\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=35.201.171.166
Nov  5 15:07:51 unicornsoft sshd\[18226\]: Failed password for invalid user test6 from 35.201.171.166 port 46108 ssh2
2019-11-05 23:22:52
54.38.192.96 attack
Nov  5 15:34:12 SilenceServices sshd[17755]: Failed password for root from 54.38.192.96 port 37612 ssh2
Nov  5 15:38:03 SilenceServices sshd[18842]: Failed password for root from 54.38.192.96 port 46360 ssh2
2019-11-05 23:02:00
200.98.136.23 attackspam
port scan and connect, tcp 1433 (ms-sql-s)
2019-11-05 23:03:02
82.81.241.25 attack
Automatic report - Port Scan Attack
2019-11-05 22:49:17
180.179.120.70 attack
Nov  5 04:37:00 web9 sshd\[23780\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.179.120.70  user=root
Nov  5 04:37:02 web9 sshd\[23780\]: Failed password for root from 180.179.120.70 port 35515 ssh2
Nov  5 04:42:39 web9 sshd\[24507\]: Invalid user dgsec from 180.179.120.70
Nov  5 04:42:39 web9 sshd\[24507\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.179.120.70
Nov  5 04:42:41 web9 sshd\[24507\]: Failed password for invalid user dgsec from 180.179.120.70 port 54816 ssh2
2019-11-05 23:00:43
182.61.36.38 attack
Nov  5 15:38:07 master sshd[28434]: Failed password for invalid user zy from 182.61.36.38 port 59824 ssh2
Nov  5 16:00:14 master sshd[28767]: Failed password for root from 182.61.36.38 port 53278 ssh2
Nov  5 16:06:26 master sshd[28779]: Failed password for root from 182.61.36.38 port 60160 ssh2
Nov  5 16:12:25 master sshd[28793]: Did not receive identification string from 182.61.36.38
Nov  5 16:19:29 master sshd[28814]: Failed password for invalid user juanda from 182.61.36.38 port 45664 ssh2
Nov  5 16:31:26 master sshd[29137]: Did not receive identification string from 182.61.36.38
Nov  5 16:37:56 master sshd[29152]: Failed password for root from 182.61.36.38 port 38068 ssh2
2019-11-05 22:47:45
76.73.206.93 attack
Automatic report - Banned IP Access
2019-11-05 22:49:36
36.155.10.19 attack
Nov  5 15:41:40 ArkNodeAT sshd\[16231\]: Invalid user admin from 36.155.10.19
Nov  5 15:41:40 ArkNodeAT sshd\[16231\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.155.10.19
Nov  5 15:41:41 ArkNodeAT sshd\[16231\]: Failed password for invalid user admin from 36.155.10.19 port 54052 ssh2
2019-11-05 22:48:28
5.142.51.81 attack
Lines containing failures of 5.142.51.81
Nov  5 15:32:10 shared10 sshd[32491]: Invalid user admin from 5.142.51.81 port 46714
Nov  5 15:32:10 shared10 sshd[32491]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.142.51.81
Nov  5 15:32:12 shared10 sshd[32491]: Failed password for invalid user admin from 5.142.51.81 port 46714 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=5.142.51.81
2019-11-05 22:50:47
222.186.175.148 attack
Nov  5 10:17:23 ny01 sshd[28452]: Failed password for root from 222.186.175.148 port 12084 ssh2
Nov  5 10:17:40 ny01 sshd[28452]: Failed password for root from 222.186.175.148 port 12084 ssh2
Nov  5 10:17:40 ny01 sshd[28452]: error: maximum authentication attempts exceeded for root from 222.186.175.148 port 12084 ssh2 [preauth]
2019-11-05 23:23:38
185.53.88.76 attackspambots
\[2019-11-05 10:05:54\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-11-05T10:05:54.467-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="9441603976936",SessionID="0x7fdf2c0eb718",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.53.88.76/57817",ACLName="no_extension_match"
\[2019-11-05 10:08:03\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-11-05T10:08:03.807-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="011441603976936",SessionID="0x7fdf2c4c1948",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.53.88.76/53183",ACLName="no_extension_match"
\[2019-11-05 10:10:06\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-11-05T10:10:06.530-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="9011441603976936",SessionID="0x7fdf2c7dcb28",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.53.88.76/54638",ACLName="no_extensi
2019-11-05 23:17:09
149.156.155.88 attackspam
2019-11-05T14:41:59.749553abusebot-8.cloudsearch.cf sshd\[24629\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=pyrtek.mech.pk.edu.pl  user=root
2019-11-05 22:46:07
168.243.232.149 attackspambots
SSH Brute Force, server-1 sshd[13617]: Failed password for root from 168.243.232.149 port 56423 ssh2
2019-11-05 23:17:55
5.160.33.118 attackspam
SPAM Delivery Attempt
2019-11-05 23:06:01
211.159.152.252 attack
SSH Brute Force, server-1 sshd[13262]: Failed password for invalid user admin2 from 211.159.152.252 port 12053 ssh2
2019-11-05 23:16:39

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