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 <<>> 104.21.72.23
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 11347
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.72.23.			IN	A

;; AUTHORITY SECTION:
.			311	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 55 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:18:37 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 23.72.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 23.72.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
104.131.46.166 attackbots
May 22 16:06:50 abendstille sshd\[2649\]: Invalid user vrb from 104.131.46.166
May 22 16:06:50 abendstille sshd\[2649\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.131.46.166
May 22 16:06:52 abendstille sshd\[2649\]: Failed password for invalid user vrb from 104.131.46.166 port 41801 ssh2
May 22 16:10:30 abendstille sshd\[5979\]: Invalid user puo from 104.131.46.166
May 22 16:10:30 abendstille sshd\[5979\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.131.46.166
...
2020-05-23 00:27:50
213.217.0.101 attackbotsspam
[MK-Root1] Blocked by UFW
2020-05-23 00:00:46
45.143.220.122 attack
MultiHost/MultiPort Probe, Scan, Hack -
2020-05-23 00:21:15
173.249.49.166 attackspam
firewall-block, port(s): 22/tcp
2020-05-22 23:43:51
195.54.160.180 attackspambots
May 22 10:08:51 server1 sshd\[30414\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.54.160.180  user=root
May 22 10:08:52 server1 sshd\[30414\]: Failed password for root from 195.54.160.180 port 10423 ssh2
May 22 10:08:55 server1 sshd\[30432\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.54.160.180  user=root
May 22 10:08:58 server1 sshd\[30432\]: Failed password for root from 195.54.160.180 port 12509 ssh2
May 22 10:09:00 server1 sshd\[30451\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.54.160.180  user=root
...
2020-05-23 00:18:22
195.54.166.180 attack
Port scan on 51 port(s): 10 28 46 47 53 85 112 114 192 206 252 290 296 320 324 334 348 405 415 420 435 462 485 504 530 564 597 606 624 645 648 659 664 683 720 745 750 755 797 821 829 863 883 958 988 5563 5692 5766 5786 5788 5818
2020-05-22 23:45:32
123.206.26.133 attackspam
May 22 18:40:07 gw1 sshd[8686]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.206.26.133
May 22 18:40:08 gw1 sshd[8686]: Failed password for invalid user ufa from 123.206.26.133 port 35460 ssh2
...
2020-05-22 23:54:27
34.68.57.143 attack
May 22 21:00:39 gw1 sshd[14523]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=34.68.57.143
May 22 21:00:42 gw1 sshd[14523]: Failed password for invalid user ust from 34.68.57.143 port 47626 ssh2
...
2020-05-23 00:23:19
159.65.41.159 attackbots
May 22 15:40:40 scw-6657dc sshd[6478]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.41.159
May 22 15:40:40 scw-6657dc sshd[6478]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.41.159
May 22 15:40:42 scw-6657dc sshd[6478]: Failed password for invalid user emc from 159.65.41.159 port 40402 ssh2
...
2020-05-22 23:54:05
159.65.216.161 attackspambots
May 22 15:39:58 vps333114 sshd[10168]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.216.161
May 22 15:40:00 vps333114 sshd[10168]: Failed password for invalid user swa from 159.65.216.161 port 41228 ssh2
...
2020-05-22 23:59:55
196.41.127.38 attackbotsspam
Scanning for exploits - /beta/wp-includes/wlwmanifest.xml
2020-05-23 00:14:39
49.88.112.70 attackspambots
2020-05-22T15:56:58.514923shield sshd\[8933\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.70  user=root
2020-05-22T15:57:00.206787shield sshd\[8933\]: Failed password for root from 49.88.112.70 port 61176 ssh2
2020-05-22T15:57:03.267180shield sshd\[8933\]: Failed password for root from 49.88.112.70 port 61176 ssh2
2020-05-22T15:57:05.882488shield sshd\[8933\]: Failed password for root from 49.88.112.70 port 61176 ssh2
2020-05-22T15:59:18.228865shield sshd\[9323\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.70  user=root
2020-05-23 00:06:32
195.54.166.183 attackbotsspam
Port scan on 50 port(s): 3006 3017 3046 3063 3068 3091 3095 3103 3126 3132 3135 3138 3145 3159 3173 3192 3222 3230 3307 3327 3356 3361 3380 3419 3466 3467 3486 3520 3558 3582 3586 3633 3748 3752 3767 3780 3782 3805 3816 3818 3853 3914 3917 3992 8181 8297 8302 8413 8418 8481
2020-05-23 00:05:22
178.128.72.80 attackbots
May 22 16:53:52 mellenthin sshd[23145]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.72.80
May 22 16:53:53 mellenthin sshd[23145]: Failed password for invalid user wsq from 178.128.72.80 port 37096 ssh2
2020-05-22 23:44:44
81.170.239.2 attack
WordPress wp-login brute force :: 81.170.239.2 0.104 - [22/May/2020:11:51:54  0000] [censored_1] "POST /wp-login.php HTTP/1.1" 200 1837 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0" "HTTP/1.1"
2020-05-23 00:16:58

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