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 <<>> 104.21.81.57
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 62904
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.57.			IN	A

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

;; Query time: 124 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:20:31 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 57.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 57.81.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
110.175.163.138 attack
/wp-login.php
2019-08-08 06:39:16
181.55.95.52 attackbotsspam
Aug  7 18:15:48 xtremcommunity sshd\[20696\]: Invalid user j0k3r123 from 181.55.95.52 port 36761
Aug  7 18:15:48 xtremcommunity sshd\[20696\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.55.95.52
Aug  7 18:15:50 xtremcommunity sshd\[20696\]: Failed password for invalid user j0k3r123 from 181.55.95.52 port 36761 ssh2
Aug  7 18:20:38 xtremcommunity sshd\[20799\]: Invalid user 123456 from 181.55.95.52 port 33963
Aug  7 18:20:38 xtremcommunity sshd\[20799\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.55.95.52
...
2019-08-08 06:28:07
200.216.30.74 attackbots
SSH Brute-Force attacks
2019-08-08 06:26:29
123.31.32.150 attack
detected by Fail2Ban
2019-08-08 06:36:00
106.13.48.201 attack
Aug  8 01:28:11 www5 sshd\[56863\]: Invalid user production from 106.13.48.201
Aug  8 01:28:11 www5 sshd\[56863\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.48.201
Aug  8 01:28:13 www5 sshd\[56863\]: Failed password for invalid user production from 106.13.48.201 port 46492 ssh2
...
2019-08-08 06:50:06
89.120.171.83 attackspambots
Automatic report - Port Scan Attack
2019-08-08 06:40:32
160.20.252.15 attack
SMB Server BruteForce Attack
2019-08-08 06:47:06
85.102.132.200 attackbotsspam
Automatic report - Port Scan Attack
2019-08-08 06:14:50
102.165.49.241 attackbots
SMTP Brute-Force
2019-08-08 06:15:50
170.130.187.26 attackbotsspam
Honeypot attack, port: 23, PTR: PTR record not found
2019-08-08 06:55:54
103.100.208.221 attack
Aug  7 17:35:34 MK-Soft-VM5 sshd\[1124\]: Invalid user tang from 103.100.208.221 port 53848
Aug  7 17:35:34 MK-Soft-VM5 sshd\[1124\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.100.208.221
Aug  7 17:35:36 MK-Soft-VM5 sshd\[1124\]: Failed password for invalid user tang from 103.100.208.221 port 53848 ssh2
...
2019-08-08 06:57:32
91.227.227.2 attack
port scan and connect, tcp 23 (telnet)
2019-08-08 06:20:40
42.115.55.42 attack
Aug  7 17:36:55   DDOS Attack: SRC=42.115.55.42 DST=[Masked] LEN=40 TOS=0x08 PREC=0x20 TTL=40  DF PROTO=TCP SPT=2043 DPT=80 WINDOW=0 RES=0x00 RST URGP=0
2019-08-08 06:19:58
123.231.61.180 attackspambots
Aug  7 20:14:57 rpi sshd[5292]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.231.61.180 
Aug  7 20:14:59 rpi sshd[5292]: Failed password for invalid user roman from 123.231.61.180 port 21618 ssh2
2019-08-08 06:33:31
163.172.36.149 attack
SSH Brute Force, server-1 sshd[26961]: Failed password for invalid user umesh123 from 163.172.36.149 port 45606 ssh2
2019-08-08 06:32:23

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