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 <<>> 104.21.12.28
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 30415
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.12.28.			IN	A

;; AUTHORITY SECTION:
.			596	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021801 1800 900 604800 86400

;; Query time: 57 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Feb 19 03:29:09 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 28.12.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 28.12.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
192.99.244.225 attack
Jun 10 23:38:42 legacy sshd[23091]: Failed password for root from 192.99.244.225 port 40462 ssh2
Jun 10 23:42:49 legacy sshd[23274]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.99.244.225
Jun 10 23:42:51 legacy sshd[23274]: Failed password for invalid user yuanwd from 192.99.244.225 port 34592 ssh2
...
2020-06-11 05:57:17
46.30.47.14 attack
(mod_security) mod_security (id:210381) triggered by 46.30.47.14 (RU/Russia/i-deya.ru): 5 in the last 300 secs
2020-06-11 06:11:33
194.61.54.88 attackspam
RDP (aggressivity: low)
2020-06-11 05:39:13
62.171.144.195 attackspambots
[2020-06-10 17:30:04] NOTICE[1288] chan_sip.c: Registration from '' failed for '62.171.144.195:52964' - Wrong password
[2020-06-10 17:30:04] SECURITY[1303] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-06-10T17:30:04.789-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="3728",SessionID="0x7f4d745af848",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.171.144.195/52964",Challenge="6f99835e",ReceivedChallenge="6f99835e",ReceivedHash="26d158d0858092c7c4fbc874b873c854"
[2020-06-10 17:31:28] NOTICE[1288] chan_sip.c: Registration from '' failed for '62.171.144.195:38974' - Wrong password
[2020-06-10 17:31:28] SECURITY[1303] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-06-10T17:31:28.930-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="3729",SessionID="0x7f4d74411058",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.171.144
...
2020-06-11 05:39:51
198.245.51.185 attackspam
Jun 11 00:20:13 ift sshd\[34217\]: Invalid user ac from 198.245.51.185Jun 11 00:20:19 ift sshd\[34217\]: Failed password for invalid user ac from 198.245.51.185 port 40740 ssh2Jun 11 00:28:24 ift sshd\[35254\]: Failed password for root from 198.245.51.185 port 55386 ssh2Jun 11 00:29:59 ift sshd\[35491\]: Invalid user dulcie from 198.245.51.185Jun 11 00:30:01 ift sshd\[35491\]: Failed password for invalid user dulcie from 198.245.51.185 port 59250 ssh2
...
2020-06-11 05:51:36
13.127.249.46 attackspam
SSH brute-force: detected 16 distinct username(s) / 28 distinct password(s) within a 24-hour window.
2020-06-11 06:06:08
107.174.20.172 attackspam
Jun 10 14:48:38 Host-KLAX-C amavis[8954]: (08954-20) Blocked SPAM {RejectedInternal}, AM.PDP-SOCK LOCAL [107.174.20.172] [107.174.20.172]  -> , Queue-ID: 659951BF345, Message-ID: <60SF.2006101648308539.137.1.Yi5oZW5kZXJzb25AdmVzdGlidGVjaC5jb20=.1@processcredit.online>, mail_id: 8efuCsY10ZPD, Hits: 10.254, size: 10583, 924 ms
Jun 10 15:16:08 Host-KLAX-C amavis[13492]: (13492-18) Blocked SPAM {RejectedInternal}, AM.PDP-SOCK LOCAL [107.174.20.172] [107.174.20.172]  -> , Queue-ID: 9B4471BF345, Message-ID: <0q.2006101716011996.137.1.YmFnYW5jb0B2ZXN0aWJ0ZWNoLmNvbQ==.1@processcredit.online>, mail_id: FIb6axrSQtGb, Hits: 10.254, size: 10508, 1695 ms
...
2020-06-11 06:01:44
103.210.133.20 attack
2020-06-10T23:52:36.796873snf-827550 sshd[4745]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.210.133.20
2020-06-10T23:52:36.782783snf-827550 sshd[4745]: Invalid user DUP from 103.210.133.20 port 41770
2020-06-10T23:52:38.697652snf-827550 sshd[4745]: Failed password for invalid user DUP from 103.210.133.20 port 41770 ssh2
...
2020-06-11 06:09:27
198.23.239.194 attack
Jun  9 21:11:10 DNS-2 sshd[28934]: Invalid user hhhh from 198.23.239.194 port 46982
Jun  9 21:11:10 DNS-2 sshd[28934]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=198.23.239.194 
Jun  9 21:11:12 DNS-2 sshd[28934]: Failed password for invalid user hhhh from 198.23.239.194 port 46982 ssh2
Jun  9 21:11:13 DNS-2 sshd[28934]: Received disconnect from 198.23.239.194 port 46982:11: Bye Bye [preauth]
Jun  9 21:11:13 DNS-2 sshd[28934]: Disconnected from invalid user hhhh 198.23.239.194 port 46982 [preauth]
Jun  9 21:25:54 DNS-2 sshd[1068]: User r.r from 198.23.239.194 not allowed because not listed in AllowUsers
Jun  9 21:25:54 DNS-2 sshd[1068]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=198.23.239.194  user=r.r
Jun  9 21:25:56 DNS-2 sshd[1068]: Failed password for invalid user r.r from 198.23.239.194 port 60458 ssh2
Jun  9 21:25:58 DNS-2 sshd[1068]: Received disconnect from 198.23.239.194 p........
-------------------------------
2020-06-11 06:07:34
46.38.145.248 attackbotsspam
Jun 10 23:09:57 mail postfix/smtpd\[15115\]: warning: unknown\[46.38.145.248\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Jun 10 23:11:27 mail postfix/smtpd\[15115\]: warning: unknown\[46.38.145.248\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Jun 10 23:13:00 mail postfix/smtpd\[15249\]: warning: unknown\[46.38.145.248\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Jun 10 23:43:38 mail postfix/smtpd\[16149\]: warning: unknown\[46.38.145.248\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
2020-06-11 05:58:33
209.105.243.145 attackspam
Jun 10 22:21:29 journals sshd\[111172\]: Invalid user kommedal from 209.105.243.145
Jun 10 22:21:29 journals sshd\[111172\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=209.105.243.145
Jun 10 22:21:32 journals sshd\[111172\]: Failed password for invalid user kommedal from 209.105.243.145 port 57574 ssh2
Jun 10 22:24:53 journals sshd\[111621\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=209.105.243.145  user=root
Jun 10 22:24:55 journals sshd\[111621\]: Failed password for root from 209.105.243.145 port 58470 ssh2
...
2020-06-11 05:53:51
119.254.155.187 attack
SASL PLAIN auth failed: ruser=...
2020-06-11 06:08:19
119.198.85.191 attackspam
Jun 11 02:23:31 itv-usvr-01 sshd[19815]: Invalid user admin from 119.198.85.191
Jun 11 02:23:31 itv-usvr-01 sshd[19815]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.198.85.191
Jun 11 02:23:31 itv-usvr-01 sshd[19815]: Invalid user admin from 119.198.85.191
Jun 11 02:23:33 itv-usvr-01 sshd[19815]: Failed password for invalid user admin from 119.198.85.191 port 45340 ssh2
Jun 11 02:29:28 itv-usvr-01 sshd[20023]: Invalid user admin from 119.198.85.191
2020-06-11 05:39:34
87.190.16.229 attack
Invalid user copyuser from 87.190.16.229 port 50202
2020-06-11 05:44:46
159.203.179.230 attackbotsspam
Jun 10 23:46:38 vps333114 sshd[31115]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.179.230  user=root
Jun 10 23:46:40 vps333114 sshd[31115]: Failed password for root from 159.203.179.230 port 45454 ssh2
...
2020-06-11 06:10:06

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