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: Prague

Region: Prague - the Capital (Praha - hlavni mesto)

Country: Czechia

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 <<>> 81.0.243.12
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 10321
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;81.0.243.12.			IN	A

;; AUTHORITY SECTION:
.			29	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025022001 1800 900 604800 86400

;; Query time: 13 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 21 08:16:28 CST 2025
;; MSG SIZE  rcvd: 104
Host info
12.243.0.81.in-addr.arpa domain name pointer unassigned-81-0-243-012.casablanca.cz.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
12.243.0.81.in-addr.arpa	name = unassigned-81-0-243-012.casablanca.cz.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
149.56.183.202 attackbots
2020-04-01 13:32:05,266 fail2ban.actions: WARNING [ssh] Ban 149.56.183.202
2020-04-01 19:32:51
207.154.206.212 attackbots
Apr  1 16:17:37 gw1 sshd[7370]: Failed password for root from 207.154.206.212 port 34022 ssh2
...
2020-04-01 19:33:24
194.5.52.17 attackspambots
Unauthorized access to hidden resource
2020-04-01 19:16:58
101.71.2.165 attackspambots
Apr  1 04:54:40 server1 sshd\[19351\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.71.2.165  user=root
Apr  1 04:54:42 server1 sshd\[19351\]: Failed password for root from 101.71.2.165 port 34802 ssh2
Apr  1 04:57:49 server1 sshd\[20741\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.71.2.165  user=root
Apr  1 04:57:51 server1 sshd\[20741\]: Failed password for root from 101.71.2.165 port 34803 ssh2
Apr  1 05:00:56 server1 sshd\[21723\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.71.2.165  user=root
...
2020-04-01 19:03:37
172.245.225.245 attackspambots
Apr  1 13:01:02 host sshd[25344]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=172.245.225.245  user=root
Apr  1 13:01:04 host sshd[25344]: Failed password for root from 172.245.225.245 port 35068 ssh2
...
2020-04-01 19:20:46
159.203.73.181 attackbots
Mar 31 15:47:59 server sshd\[11916\]: Failed password for invalid user wuyudi from 159.203.73.181 port 44596 ssh2
Apr  1 12:02:15 server sshd\[19441\]: Invalid user test from 159.203.73.181
Apr  1 12:02:15 server sshd\[19441\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=joinlincoln.org 
Apr  1 12:02:17 server sshd\[19441\]: Failed password for invalid user test from 159.203.73.181 port 44238 ssh2
Apr  1 12:04:34 server sshd\[19801\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=joinlincoln.org  user=root
...
2020-04-01 19:36:32
106.12.131.36 attack
Apr  1 06:38:15 *** sshd[10718]: Invalid user zoe from 106.12.131.36
2020-04-01 19:15:55
137.74.173.182 attackspam
Apr  1 07:06:07 NPSTNNYC01T sshd[19276]: Failed password for root from 137.74.173.182 port 33076 ssh2
Apr  1 07:09:47 NPSTNNYC01T sshd[19529]: Failed password for root from 137.74.173.182 port 44788 ssh2
...
2020-04-01 19:15:18
157.245.158.214 attackspambots
Apr  1 12:52:12 vmd26974 sshd[2787]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.245.158.214
Apr  1 12:52:14 vmd26974 sshd[2787]: Failed password for invalid user ns from 157.245.158.214 port 42110 ssh2
...
2020-04-01 19:39:05
188.165.148.25 attackbotsspam
Apr  1 12:38:32 raspberrypi sshd[28766]: Failed password for root from 188.165.148.25 port 40994 ssh2
2020-04-01 18:59:45
51.77.192.208 attackbotsspam
51.77.192.208 - - [01/Apr/2020:06:47:22 +0300] "POST /wp-login.php HTTP/1.1" 200 2790 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
2020-04-01 19:03:54
134.209.194.217 attackbotsspam
Apr  1 12:53:09 legacy sshd[19541]: Failed password for root from 134.209.194.217 port 57016 ssh2
Apr  1 12:57:48 legacy sshd[19635]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.209.194.217
Apr  1 12:57:49 legacy sshd[19635]: Failed password for invalid user test from 134.209.194.217 port 41006 ssh2
...
2020-04-01 18:58:46
223.220.251.232 attackspam
Apr  1 10:47:13 srv01 sshd[28419]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.220.251.232  user=root
Apr  1 10:47:15 srv01 sshd[28419]: Failed password for root from 223.220.251.232 port 40762 ssh2
Apr  1 10:49:54 srv01 sshd[28598]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.220.251.232  user=root
Apr  1 10:49:56 srv01 sshd[28598]: Failed password for root from 223.220.251.232 port 56369 ssh2
Apr  1 10:52:44 srv01 sshd[28840]: Invalid user chengm from 223.220.251.232 port 43771
...
2020-04-01 19:23:46
49.233.180.151 attackspam
SSH Brute Force
2020-04-01 19:13:57
162.243.130.16 attackspam
port scan and connect, tcp 443 (https)
2020-04-01 19:02:21

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