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 <<>> 104.21.235.172
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 35066
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.235.172.			IN	A

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

;; Query time: 65 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:18:23 CST 2022
;; MSG SIZE  rcvd: 107
Host info
Host 172.235.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 172.235.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
36.99.180.242 attackspambots
(sshd) Failed SSH login from 36.99.180.242 (CN/China/-): 5 in the last 3600 secs
2020-09-07 20:33:53
118.25.215.186 attack
Sep  7 07:50:19 Tower sshd[3785]: Connection from 118.25.215.186 port 39786 on 192.168.10.220 port 22 rdomain ""
Sep  7 07:50:21 Tower sshd[3785]: Failed password for root from 118.25.215.186 port 39786 ssh2
Sep  7 07:50:22 Tower sshd[3785]: Received disconnect from 118.25.215.186 port 39786:11: Bye Bye [preauth]
Sep  7 07:50:22 Tower sshd[3785]: Disconnected from authenticating user root 118.25.215.186 port 39786 [preauth]
2020-09-07 20:18:20
222.186.175.183 attack
2020-09-07T15:50:23.852230lavrinenko.info sshd[19550]: Failed password for root from 222.186.175.183 port 47300 ssh2
2020-09-07T15:50:28.124180lavrinenko.info sshd[19550]: Failed password for root from 222.186.175.183 port 47300 ssh2
2020-09-07T15:50:31.776586lavrinenko.info sshd[19550]: Failed password for root from 222.186.175.183 port 47300 ssh2
2020-09-07T15:50:35.572803lavrinenko.info sshd[19550]: Failed password for root from 222.186.175.183 port 47300 ssh2
2020-09-07T15:50:39.844702lavrinenko.info sshd[19550]: Failed password for root from 222.186.175.183 port 47300 ssh2
...
2020-09-07 20:52:24
94.25.168.248 attackbots
Unauthorized connection attempt from IP address 94.25.168.248 on Port 445(SMB)
2020-09-07 20:12:37
88.135.39.26 attackspam
port scan and connect, tcp 1433 (ms-sql-s)
2020-09-07 20:20:55
13.89.24.13 attackspambots
DATE:2020-09-07 12:41:41, IP:13.89.24.13, PORT:1433 MSSQL brute force auth on honeypot server (epe-honey1-hq)
2020-09-07 20:16:36
222.186.31.166 attackbots
2020-09-07T15:35:38.770261lavrinenko.info sshd[18718]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.31.166  user=root
2020-09-07T15:35:40.664965lavrinenko.info sshd[18718]: Failed password for root from 222.186.31.166 port 26779 ssh2
2020-09-07T15:35:38.770261lavrinenko.info sshd[18718]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.31.166  user=root
2020-09-07T15:35:40.664965lavrinenko.info sshd[18718]: Failed password for root from 222.186.31.166 port 26779 ssh2
2020-09-07T15:35:42.835996lavrinenko.info sshd[18718]: Failed password for root from 222.186.31.166 port 26779 ssh2
...
2020-09-07 20:37:12
123.22.212.99 attack
Sep  7 10:52:00 ns382633 sshd\[19205\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.22.212.99  user=root
Sep  7 10:52:02 ns382633 sshd\[19205\]: Failed password for root from 123.22.212.99 port 64323 ssh2
Sep  7 11:02:07 ns382633 sshd\[21020\]: Invalid user kosmos from 123.22.212.99 port 58254
Sep  7 11:02:07 ns382633 sshd\[21020\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.22.212.99
Sep  7 11:02:10 ns382633 sshd\[21020\]: Failed password for invalid user kosmos from 123.22.212.99 port 58254 ssh2
2020-09-07 20:51:26
222.174.148.178 attack
 TCP (SYN) 222.174.148.178:48139 -> port 445, len 40
2020-09-07 20:53:42
112.85.42.73 attackbotsspam
Sep  7 14:50:27 vps647732 sshd[9787]: Failed password for root from 112.85.42.73 port 41922 ssh2
Sep  7 14:50:29 vps647732 sshd[9787]: Failed password for root from 112.85.42.73 port 41922 ssh2
...
2020-09-07 20:51:45
138.197.175.236 attack
SIP/5060 Probe, BF, Hack -
2020-09-07 20:31:48
167.71.224.156 attack
167.71.224.156 - - [06/Sep/2020:10:54:47 -0600] "GET /wp-login.php HTTP/1.1" 301 480 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...
2020-09-07 20:48:07
45.142.120.89 attackbotsspam
Sep  7 14:34:41 relay postfix/smtpd\[14381\]: warning: unknown\[45.142.120.89\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  7 14:35:13 relay postfix/smtpd\[17695\]: warning: unknown\[45.142.120.89\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  7 14:35:55 relay postfix/smtpd\[12351\]: warning: unknown\[45.142.120.89\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  7 14:36:28 relay postfix/smtpd\[12361\]: warning: unknown\[45.142.120.89\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  7 14:37:09 relay postfix/smtpd\[11090\]: warning: unknown\[45.142.120.89\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2020-09-07 20:45:36
124.113.193.108 attackspam
Sep  7 13:06:18 v26 sshd[29549]: Invalid user sanjavier from 124.113.193.108 port 59878
Sep  7 13:06:18 v26 sshd[29549]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.113.193.108
Sep  7 13:06:20 v26 sshd[29549]: Failed password for invalid user sanjavier from 124.113.193.108 port 59878 ssh2
Sep  7 13:06:20 v26 sshd[29549]: Received disconnect from 124.113.193.108 port 59878:11: Bye Bye [preauth]
Sep  7 13:06:20 v26 sshd[29549]: Disconnected from 124.113.193.108 port 59878 [preauth]
Sep  7 13:15:53 v26 sshd[30768]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.113.193.108  user=r.r
Sep  7 13:15:55 v26 sshd[30768]: Failed password for r.r from 124.113.193.108 port 55824 ssh2
Sep  7 13:15:56 v26 sshd[30768]: Received disconnect from 124.113.193.108 port 55824:11: Bye Bye [preauth]
Sep  7 13:15:56 v26 sshd[30768]: Disconnected from 124.113.193.108 port 55824 [preauth]


........
--------------------------------------------
2020-09-07 20:15:05
89.248.172.237 attackbots
Port scan - 18 hits (greater than 5)
2020-09-07 20:27:52

Recently Reported IPs

104.21.68.238 104.21.235.16 104.21.235.174 104.21.235.171
104.21.235.182 104.21.235.189 104.21.235.173 104.21.235.181
104.21.68.239 104.21.235.190 104.21.235.191 219.142.74.59
104.21.235.192 104.21.235.204 104.21.235.203 104.21.235.22
104.21.235.209 104.21.68.244 104.21.235.210 104.21.235.27