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

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 <<>> 21.81.42.123
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 11953
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;21.81.42.123.			IN	A

;; AUTHORITY SECTION:
.			237	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2024092900 1800 900 604800 86400

;; Query time: 21 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Sep 29 21:29:19 CST 2024
;; MSG SIZE  rcvd: 105
Host info
Host 123.42.81.21.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 123.42.81.21.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
59.172.6.244 attackbotsspam
May  3 23:42:34 server sshd[24573]: Failed password for invalid user bot from 59.172.6.244 port 36463 ssh2
May  3 23:46:06 server sshd[24994]: Failed password for root from 59.172.6.244 port 60154 ssh2
May  3 23:53:11 server sshd[25340]: Failed password for root from 59.172.6.244 port 51072 ssh2
2020-05-04 06:55:48
140.143.249.246 attackbots
May  4 00:45:12 server sshd[7401]: Failed password for invalid user test2 from 140.143.249.246 port 49502 ssh2
May  4 00:48:22 server sshd[7595]: Failed password for invalid user investor from 140.143.249.246 port 42820 ssh2
May  4 00:51:33 server sshd[7868]: Failed password for invalid user duran from 140.143.249.246 port 36132 ssh2
2020-05-04 07:21:31
37.49.226.213 attack
Automatic report - SSH Brute-Force Attack
2020-05-04 07:12:53
77.247.108.77 attack
05/03/2020-16:37:21.848720 77.247.108.77 Protocol: 6 ET CINS Active Threat Intelligence Poor Reputation IP group 75
2020-05-04 07:22:20
121.201.74.154 attackspam
May  4 00:07:51 piServer sshd[29733]: Failed password for root from 121.201.74.154 port 42562 ssh2
May  4 00:10:54 piServer sshd[30095]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.201.74.154 
May  4 00:10:57 piServer sshd[30095]: Failed password for invalid user hostmaster from 121.201.74.154 port 59332 ssh2
...
2020-05-04 07:17:57
222.186.175.163 attackbotsspam
May  4 01:07:11 legacy sshd[14238]: Failed password for root from 222.186.175.163 port 44278 ssh2
May  4 01:07:22 legacy sshd[14238]: Failed password for root from 222.186.175.163 port 44278 ssh2
May  4 01:07:25 legacy sshd[14238]: Failed password for root from 222.186.175.163 port 44278 ssh2
May  4 01:07:25 legacy sshd[14238]: error: maximum authentication attempts exceeded for root from 222.186.175.163 port 44278 ssh2 [preauth]
...
2020-05-04 07:13:29
35.244.25.124 attack
May  4 00:14:06 server sshd[49403]: Failed password for invalid user shoutcast from 35.244.25.124 port 38072 ssh2
May  4 00:19:32 server sshd[53402]: Failed password for root from 35.244.25.124 port 39424 ssh2
May  4 00:24:43 server sshd[57295]: Failed password for invalid user mozart from 35.244.25.124 port 40774 ssh2
2020-05-04 07:24:45
117.50.2.38 attackspambots
sshd jail - ssh hack attempt
2020-05-04 06:52:16
45.119.215.68 attackbots
May  3 20:31:45 powerpi2 sshd[23844]: Failed password for invalid user ncs from 45.119.215.68 port 37092 ssh2
May  3 20:38:04 powerpi2 sshd[24154]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.119.215.68  user=root
May  3 20:38:06 powerpi2 sshd[24154]: Failed password for root from 45.119.215.68 port 59900 ssh2
...
2020-05-04 06:52:30
106.13.203.171 attackbotsspam
SASL PLAIN auth failed: ruser=...
2020-05-04 07:00:35
51.254.141.18 attackbots
2020-05-03T22:49:08.354944shield sshd\[15319\]: Invalid user dgv from 51.254.141.18 port 42040
2020-05-03T22:49:08.359308shield sshd\[15319\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=mail.smarteo.it
2020-05-03T22:49:10.637050shield sshd\[15319\]: Failed password for invalid user dgv from 51.254.141.18 port 42040 ssh2
2020-05-03T22:53:38.117449shield sshd\[16375\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=mail.smarteo.it  user=root
2020-05-03T22:53:40.460647shield sshd\[16375\]: Failed password for root from 51.254.141.18 port 44524 ssh2
2020-05-04 06:56:54
107.182.182.88 attackbots
2020-05-03T15:50:08.668629linuxbox-skyline sshd[149267]: Invalid user tester from 107.182.182.88 port 60502
...
2020-05-04 07:17:03
222.244.144.163 attackbots
May  3 16:37:28 Tower sshd[37624]: Connection from 222.244.144.163 port 44620 on 192.168.10.220 port 22 rdomain ""
May  3 16:37:30 Tower sshd[37624]: Failed password for root from 222.244.144.163 port 44620 ssh2
May  3 16:37:30 Tower sshd[37624]: Received disconnect from 222.244.144.163 port 44620:11: Bye Bye [preauth]
May  3 16:37:30 Tower sshd[37624]: Disconnected from authenticating user root 222.244.144.163 port 44620 [preauth]
2020-05-04 07:15:40
190.203.195.25 attackbots
1588538274 - 05/03/2020 22:37:54 Host: 190.203.195.25/190.203.195.25 Port: 445 TCP Blocked
2020-05-04 06:58:37
195.56.187.26 attackspambots
SSH brute-force: detected 6 distinct usernames within a 24-hour window.
2020-05-04 07:11:26

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