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: Switzerland

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 <<>> 57.3.52.81
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4833
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;57.3.52.81.			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 11:27:31 CST 2025
;; MSG SIZE  rcvd: 103
Host info
Host 81.52.3.57.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 81.52.3.57.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
64.227.97.195 attack
Fail2Ban Ban Triggered
2020-08-03 08:20:47
118.27.33.234 attack
Aug  2 18:44:48 firewall sshd[15471]: Failed password for root from 118.27.33.234 port 37946 ssh2
Aug  2 18:49:09 firewall sshd[17873]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.27.33.234  user=root
Aug  2 18:49:11 firewall sshd[17873]: Failed password for root from 118.27.33.234 port 51394 ssh2
...
2020-08-03 08:11:46
2a01:4f8:192:8108::2 attackspam
20 attempts against mh-misbehave-ban on cedar
2020-08-03 08:23:15
43.226.41.171 attackbotsspam
Aug  3 05:47:47 itv-usvr-01 sshd[23839]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=43.226.41.171  user=root
Aug  3 05:47:48 itv-usvr-01 sshd[23839]: Failed password for root from 43.226.41.171 port 52196 ssh2
Aug  3 05:53:02 itv-usvr-01 sshd[24072]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=43.226.41.171  user=root
Aug  3 05:53:04 itv-usvr-01 sshd[24072]: Failed password for root from 43.226.41.171 port 36200 ssh2
2020-08-03 08:09:52
211.208.225.110 attackbots
SSH bruteforce
2020-08-03 08:06:01
51.103.27.114 attack
Aug  2 22:16:50 efa2 sshd[1992]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.103.27.114  user=r.r
Aug  2 22:16:52 efa2 sshd[1992]: Failed password for r.r from 51.103.27.114 port 56512 ssh2
Aug  2 22:17:01 efa2 sshd[1994]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.103.27.114  user=r.r
Aug  2 22:17:03 efa2 sshd[1994]: Failed password for r.r from 51.103.27.114 port 34976 ssh2
Aug  2 22:17:11 efa2 sshd[2115]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.103.27.114  user=r.r

........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=51.103.27.114
2020-08-03 08:26:18
115.85.80.96 attackspambots
Aug  3 05:59:02 our-server-hostname postfix/smtpd[18716]: connect from unknown[115.85.80.96]
Aug x@x
Aug  3 05:59:06 our-server-hostname postfix/smtpd[18716]: disconnect from unknown[115.85.80.96]
Aug  3 05:59:45 our-server-hostname postfix/smtpd[15593]: connect from unknown[115.85.80.96]
Aug x@x
Aug  3 05:59:49 our-server-hostname postfix/smtpd[15593]: disconnect from unknown[115.85.80.96]
Aug  3 05:59:52 our-server-hostname postfix/smtpd[19177]: connect from unknown[115.85.80.96]
Aug x@x
Aug  3 05:59:55 our-server-hostname postfix/smtpd[19177]: disconnect from unknown[115.85.80.96]
Aug  3 06:01:41 our-server-hostname postfix/smtpd[18732]: connect from unknown[115.85.80.96]
Aug x@x
Aug  3 06:01:44 our-server-hostname postfix/smtpd[18732]: disconnect from unknown[115.85.80.96]
Aug  3 06:01:56 our-server-hostname postfix/smtpd[19178]: connect from unknown[115.85.80.96]
Aug x@x
Aug  3 06:01:59 our-server-hostname postfix/smtpd[19178]: disconnect from unknown[115.85.80.96]........
-------------------------------
2020-08-03 08:04:57
185.97.116.165 attack
SSH invalid-user multiple login try
2020-08-03 08:29:10
213.193.44.13 attackspambots
Aug  2 19:49:15 ws19vmsma01 sshd[19882]: Failed password for root from 213.193.44.13 port 41968 ssh2
Aug  2 20:29:26 ws19vmsma01 sshd[207311]: Failed password for root from 213.193.44.13 port 41726 ssh2
...
2020-08-03 08:31:54
222.90.31.226 attack
Scanned 3 times in the last 24 hours on port 22
2020-08-03 08:21:39
134.175.170.87 attackbotsspam
Aug  2 15:42:48 cumulus sshd[1542]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.175.170.87  user=r.r
Aug  2 15:42:50 cumulus sshd[1542]: Failed password for r.r from 134.175.170.87 port 45114 ssh2
Aug  2 15:42:51 cumulus sshd[1542]: Received disconnect from 134.175.170.87 port 45114:11: Bye Bye [preauth]
Aug  2 15:42:51 cumulus sshd[1542]: Disconnected from 134.175.170.87 port 45114 [preauth]
Aug  2 15:49:35 cumulus sshd[2314]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.175.170.87  user=r.r
Aug  2 15:49:37 cumulus sshd[2314]: Failed password for r.r from 134.175.170.87 port 37822 ssh2
Aug  2 15:49:38 cumulus sshd[2314]: Received disconnect from 134.175.170.87 port 37822:11: Bye Bye [preauth]
Aug  2 15:49:38 cumulus sshd[2314]: Disconnected from 134.175.170.87 port 37822 [preauth]
Aug  2 15:53:51 cumulus sshd[2712]: pam_unix(sshd:auth): authentication failure; logname= uid=0 ........
-------------------------------
2020-08-03 08:10:05
210.178.94.227 attackbots
Aug  3 01:06:40 kh-dev-server sshd[5906]: Failed password for root from 210.178.94.227 port 38938 ssh2
...
2020-08-03 07:55:25
200.54.150.18 attack
Aug  2 15:47:01 mockhub sshd[1345]: Failed password for root from 200.54.150.18 port 44574 ssh2
...
2020-08-03 08:01:02
58.87.114.13 attackspambots
Aug  3 02:02:26 OPSO sshd\[31498\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.87.114.13  user=root
Aug  3 02:02:28 OPSO sshd\[31498\]: Failed password for root from 58.87.114.13 port 45268 ssh2
Aug  3 02:06:58 OPSO sshd\[32750\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.87.114.13  user=root
Aug  3 02:07:00 OPSO sshd\[32750\]: Failed password for root from 58.87.114.13 port 46126 ssh2
Aug  3 02:11:23 OPSO sshd\[1181\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.87.114.13  user=root
2020-08-03 08:27:06
3.85.23.148 attackspambots
Port Scan detected!
...
2020-08-03 08:03:09

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