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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.0.172
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 5441
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.0.172.			IN	A

;; AUTHORITY SECTION:
.			462	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021700 1800 900 604800 86400

;; Query time: 50 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 17:19:19 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 172.0.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 172.0.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
222.186.175.167 attackbots
2020-06-21T13:10:58.397704vps751288.ovh.net sshd\[5209\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.167  user=root
2020-06-21T13:11:01.109141vps751288.ovh.net sshd\[5209\]: Failed password for root from 222.186.175.167 port 63490 ssh2
2020-06-21T13:11:04.298906vps751288.ovh.net sshd\[5209\]: Failed password for root from 222.186.175.167 port 63490 ssh2
2020-06-21T13:11:07.232893vps751288.ovh.net sshd\[5209\]: Failed password for root from 222.186.175.167 port 63490 ssh2
2020-06-21T13:11:10.578348vps751288.ovh.net sshd\[5209\]: Failed password for root from 222.186.175.167 port 63490 ssh2
2020-06-21 19:11:59
106.51.85.16 attackspam
Jun 21 11:51:54 sxvn sshd[1128378]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.51.85.16
2020-06-21 19:32:07
157.245.124.160 attack
Jun 21 07:09:45 ns37 sshd[21464]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.245.124.160
2020-06-21 19:23:57
87.226.165.143 attackbots
Jun 21 13:17:19 lukav-desktop sshd\[2020\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=87.226.165.143  user=root
Jun 21 13:17:21 lukav-desktop sshd\[2020\]: Failed password for root from 87.226.165.143 port 58330 ssh2
Jun 21 13:20:36 lukav-desktop sshd\[3446\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=87.226.165.143  user=root
Jun 21 13:20:37 lukav-desktop sshd\[3446\]: Failed password for root from 87.226.165.143 port 57034 ssh2
Jun 21 13:23:59 lukav-desktop sshd\[3473\]: Invalid user ram from 87.226.165.143
2020-06-21 19:06:20
219.142.143.118 attackspam
firewall-block, port(s): 1433/tcp
2020-06-21 18:57:33
114.199.123.211 attack
sshd
2020-06-21 19:03:19
145.239.196.14 attack
Jun 21 07:56:16 plex sshd[18243]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=145.239.196.14  user=root
Jun 21 07:56:19 plex sshd[18243]: Failed password for root from 145.239.196.14 port 49604 ssh2
2020-06-21 19:24:13
106.12.182.38 attackbots
Jun 21 08:30:31 marvibiene sshd[44003]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.182.38  user=root
Jun 21 08:30:34 marvibiene sshd[44003]: Failed password for root from 106.12.182.38 port 43120 ssh2
Jun 21 08:36:53 marvibiene sshd[44087]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.182.38  user=root
Jun 21 08:36:56 marvibiene sshd[44087]: Failed password for root from 106.12.182.38 port 39524 ssh2
...
2020-06-21 19:05:02
46.38.148.2 attack
2020-06-21 11:23:38 auth_plain authenticator failed for (User) [46.38.148.2]: 535 Incorrect authentication data (set_id=mailer2@csmailer.org)
2020-06-21 11:23:59 auth_plain authenticator failed for (User) [46.38.148.2]: 535 Incorrect authentication data (set_id=templates@csmailer.org)
2020-06-21 11:24:20 auth_plain authenticator failed for (User) [46.38.148.2]: 535 Incorrect authentication data (set_id=exmail@csmailer.org)
2020-06-21 11:24:41 auth_plain authenticator failed for (User) [46.38.148.2]: 535 Incorrect authentication data (set_id=mc@csmailer.org)
2020-06-21 11:25:02 auth_plain authenticator failed for (User) [46.38.148.2]: 535 Incorrect authentication data (set_id=geobanner@csmailer.org)
...
2020-06-21 19:27:06
141.98.81.209 attack
Jun 21 11:11:23 *** sshd[9733]: User root from 141.98.81.209 not allowed because not listed in AllowUsers
2020-06-21 19:16:15
60.165.118.230 attack
Jun 20 22:58:13 php1 sshd\[12759\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.165.118.230  user=root
Jun 20 22:58:15 php1 sshd\[12759\]: Failed password for root from 60.165.118.230 port 42765 ssh2
Jun 20 23:02:11 php1 sshd\[13187\]: Invalid user richard from 60.165.118.230
Jun 20 23:02:11 php1 sshd\[13187\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.165.118.230
Jun 20 23:02:13 php1 sshd\[13187\]: Failed password for invalid user richard from 60.165.118.230 port 36271 ssh2
2020-06-21 19:19:21
111.93.184.14 attack
firewall-block, port(s): 445/tcp
2020-06-21 19:04:46
185.132.53.159 attackbots
[portscan] tcp/22 [SSH]
in blocklist.de:'listed [ssh]'
*(RWIN=65535)(06210921)
2020-06-21 19:23:05
104.42.126.249 attackspam
[2020-06-21 07:27:35] NOTICE[1273] chan_sip.c: Registration from '' failed for '104.42.126.249:52773' - Wrong password
[2020-06-21 07:27:35] SECURITY[1288] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-06-21T07:27:35.296-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1001",SessionID="0x7f31c02f97a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/104.42.126.249/52773",Challenge="4287faf8",ReceivedChallenge="4287faf8",ReceivedHash="bee9ea31ad79495dc21591c3fb468bc5"
[2020-06-21 07:29:21] NOTICE[1273] chan_sip.c: Registration from '' failed for '104.42.126.249:58206' - Wrong password
[2020-06-21 07:29:21] SECURITY[1288] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-06-21T07:29:21.457-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1001",SessionID="0x7f31c0045328",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/104.42.126
...
2020-06-21 19:29:26
61.177.172.102 attack
Jun 21 11:28:59 game-panel sshd[14059]: Failed password for root from 61.177.172.102 port 31209 ssh2
Jun 21 11:29:01 game-panel sshd[14059]: Failed password for root from 61.177.172.102 port 31209 ssh2
Jun 21 11:29:03 game-panel sshd[14059]: Failed password for root from 61.177.172.102 port 31209 ssh2
2020-06-21 19:33:20

Recently Reported IPs

104.21.0.171 104.21.0.177 104.21.0.179 104.21.0.182
104.21.0.187 104.21.0.189 104.21.0.190 104.21.0.193
104.21.0.194 104.21.0.200 104.21.0.201 93.177.119.31
104.21.0.202 104.21.0.204 233.62.246.203 104.21.0.206
104.21.0.215 104.21.0.217 104.21.0.218 104.21.0.219