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: None

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 <<>> 104.21.39.252
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 42168
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.39.252.			IN	A

;; AUTHORITY SECTION:
.			577	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022201 1800 900 604800 86400

;; Query time: 27 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Wed Feb 23 03:58:57 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 252.39.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 252.39.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
212.64.43.52 attackspam
Triggered by Fail2Ban at Ares web server
2020-05-16 12:20:22
195.231.3.146 attackbots
May 16 03:28:18 mail.srvfarm.net postfix/smtpd[2325383]: warning: unknown[195.231.3.146]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
May 16 03:28:18 mail.srvfarm.net postfix/smtpd[2325383]: lost connection after AUTH from unknown[195.231.3.146]
May 16 03:30:38 mail.srvfarm.net postfix/smtpd[2325372]: warning: unknown[195.231.3.146]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
May 16 03:30:38 mail.srvfarm.net postfix/smtpd[2325372]: lost connection after AUTH from unknown[195.231.3.146]
May 16 03:34:40 mail.srvfarm.net postfix/smtpd[2325383]: warning: unknown[195.231.3.146]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2020-05-16 12:19:03
103.145.12.100 attackspambots
Automatic report - Banned IP Access
2020-05-16 12:10:52
51.158.118.70 attack
Invalid user ebaserdb from 51.158.118.70 port 48362
2020-05-16 09:00:51
51.178.45.204 attackbots
Invalid user juan from 51.178.45.204 port 38108
2020-05-16 12:19:24
165.22.77.163 attackbotsspam
May 16 04:37:21 piServer sshd[29357]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.22.77.163 
May 16 04:37:23 piServer sshd[29357]: Failed password for invalid user elastic from 165.22.77.163 port 44952 ssh2
May 16 04:42:05 piServer sshd[29906]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.22.77.163 
...
2020-05-16 12:03:19
154.126.79.223 attack
ZyXEL brand multi-product pre-authentication command injection in weblogin.cgi - exploit CVE-2020-9054
2020-05-16 09:02:11
218.92.0.191 attackspam
May 16 03:34:09 cdc sshd[22851]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.191  user=root
May 16 03:34:11 cdc sshd[22851]: Failed password for invalid user root from 218.92.0.191 port 40942 ssh2
2020-05-16 12:03:02
74.102.39.43 attack
Blocked Remote Command Execution via Shell Script
2020-05-16 09:05:39
221.147.61.171 attackbots
Attempted connection to port 5555.
2020-05-16 08:57:33
49.234.213.237 attackspambots
2020-05-16T03:58:21.849172vps751288.ovh.net sshd\[17511\]: Invalid user gitlab-runner from 49.234.213.237 port 50788
2020-05-16T03:58:21.860556vps751288.ovh.net sshd\[17511\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.213.237
2020-05-16T03:58:23.280890vps751288.ovh.net sshd\[17511\]: Failed password for invalid user gitlab-runner from 49.234.213.237 port 50788 ssh2
2020-05-16T04:00:43.440176vps751288.ovh.net sshd\[17518\]: Invalid user steamsrv from 49.234.213.237 port 55244
2020-05-16T04:00:43.451725vps751288.ovh.net sshd\[17518\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.213.237
2020-05-16 12:02:26
51.77.212.235 attackspam
2020-05-15T23:53:02.597829rocketchat.forhosting.nl sshd[11753]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.212.235
2020-05-15T23:53:02.595600rocketchat.forhosting.nl sshd[11753]: Invalid user wwwdata from 51.77.212.235 port 50282
2020-05-15T23:53:05.022577rocketchat.forhosting.nl sshd[11753]: Failed password for invalid user wwwdata from 51.77.212.235 port 50282 ssh2
...
2020-05-16 08:51:26
116.228.160.22 attack
2020-05-15T21:59:27.022705ionos.janbro.de sshd[56629]: Invalid user canada from 116.228.160.22 port 50075
2020-05-15T21:59:29.103604ionos.janbro.de sshd[56629]: Failed password for invalid user canada from 116.228.160.22 port 50075 ssh2
2020-05-15T22:05:33.809990ionos.janbro.de sshd[56672]: Invalid user phpmy from 116.228.160.22 port 37754
2020-05-15T22:05:34.057997ionos.janbro.de sshd[56672]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.228.160.22
2020-05-15T22:05:33.809990ionos.janbro.de sshd[56672]: Invalid user phpmy from 116.228.160.22 port 37754
2020-05-15T22:05:36.262156ionos.janbro.de sshd[56672]: Failed password for invalid user phpmy from 116.228.160.22 port 37754 ssh2
2020-05-15T22:08:06.293238ionos.janbro.de sshd[56700]: Invalid user musikbot from 116.228.160.22 port 59826
2020-05-15T22:08:06.479999ionos.janbro.de sshd[56700]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.228.160.22
...
2020-05-16 12:11:12
91.191.247.15 attackbots
Attempted connection to port 445.
2020-05-16 08:50:22
103.145.12.87 attack
[2020-05-15 22:58:01] NOTICE[1157][C-000051c3] chan_sip.c: Call from '' (103.145.12.87:56376) to extension '01146812400368' rejected because extension not found in context 'public'.
[2020-05-15 22:58:01] SECURITY[1173] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-05-15T22:58:01.561-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="01146812400368",SessionID="0x7f5f10d1ed48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/103.145.12.87/56376",ACLName="no_extension_match"
[2020-05-15 22:58:02] NOTICE[1157][C-000051c4] chan_sip.c: Call from '' (103.145.12.87:62037) to extension '011442037698349' rejected because extension not found in context 'public'.
[2020-05-15 22:58:02] SECURITY[1173] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-05-15T22:58:02.476-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="011442037698349",SessionID="0x7f5f100266a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/10
...
2020-05-16 12:13:23

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