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 <<>> 104.21.72.201
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 10028
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.72.201.			IN	A

;; AUTHORITY SECTION:
.			303	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022401 1800 900 604800 86400

;; Query time: 63 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 25 11:59:45 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 201.72.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 201.72.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
200.73.128.181 attack
May  5 06:04:49 legacy sshd[25166]: Failed password for root from 200.73.128.181 port 44080 ssh2
May  5 06:09:48 legacy sshd[25355]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.73.128.181
May  5 06:09:50 legacy sshd[25355]: Failed password for invalid user dossie from 200.73.128.181 port 56942 ssh2
...
2020-05-05 13:16:46
165.227.60.31 attackbots
Honeypot attack, port: 139, PTR: PTR record not found
2020-05-05 13:24:49
138.255.148.35 attackspambots
(sshd) Failed SSH login from 138.255.148.35 (BR/Brazil/35.148.255.138.clicfacilitb.com.br): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: May  5 04:05:17 srv sshd[18569]: Invalid user kelly from 138.255.148.35 port 60321
May  5 04:05:19 srv sshd[18569]: Failed password for invalid user kelly from 138.255.148.35 port 60321 ssh2
May  5 04:07:49 srv sshd[18627]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.255.148.35  user=root
May  5 04:07:51 srv sshd[18627]: Failed password for root from 138.255.148.35 port 46238 ssh2
May  5 04:09:02 srv sshd[18651]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.255.148.35  user=root
2020-05-05 13:12:08
177.85.93.236 attack
May  5 07:01:56 legacy sshd[27647]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.85.93.236
May  5 07:01:58 legacy sshd[27647]: Failed password for invalid user jupiter from 177.85.93.236 port 58656 ssh2
May  5 07:04:15 legacy sshd[27760]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.85.93.236
...
2020-05-05 13:24:14
223.83.216.125 attackspambots
"fail2ban match"
2020-05-05 13:28:46
116.49.37.152 attack
Honeypot attack, port: 5555, PTR: n1164937152.netvigator.com.
2020-05-05 13:39:16
181.55.123.14 attackspambots
DATE:2020-05-05 06:07:47, IP:181.55.123.14, PORT:ssh SSH brute force auth (docker-dc)
2020-05-05 13:11:27
129.211.173.192 attackspambots
trying to access non-authorized port
2020-05-05 13:08:40
91.121.205.83 attackbots
May  5 02:46:20 roki-contabo sshd\[13777\]: Invalid user ns from 91.121.205.83
May  5 02:46:20 roki-contabo sshd\[13777\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.121.205.83
May  5 02:46:22 roki-contabo sshd\[13777\]: Failed password for invalid user ns from 91.121.205.83 port 50278 ssh2
May  5 03:09:01 roki-contabo sshd\[14109\]: Invalid user suporte from 91.121.205.83
May  5 03:09:01 roki-contabo sshd\[14109\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.121.205.83
...
2020-05-05 13:14:14
89.233.219.204 attack
1588640943 - 05/05/2020 03:09:03 Host: 89.233.219.204/89.233.219.204 Port: 23 TCP Blocked
2020-05-05 13:13:09
181.174.84.69 attackbotsspam
no
2020-05-05 13:23:45
68.183.181.7 attackbotsspam
(sshd) Failed SSH login from 68.183.181.7 (SG/Singapore/-): 5 in the last 3600 secs
2020-05-05 13:22:27
58.87.97.166 attackbotsspam
$f2bV_matches
2020-05-05 13:21:04
110.45.155.101 attack
May  5 06:46:07 home sshd[11358]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.45.155.101
May  5 06:46:09 home sshd[11358]: Failed password for invalid user sysadmin from 110.45.155.101 port 34120 ssh2
May  5 06:50:21 home sshd[11950]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.45.155.101
...
2020-05-05 13:07:09
51.252.12.148 attackspam
Automatic report - Port Scan Attack
2020-05-05 13:06:07

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