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 <<>> 104.21.81.55
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 5744
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.55.			IN	A

;; AUTHORITY SECTION:
.			600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 117 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:02:58 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 55.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 55.81.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
125.105.77.190 attack
" "
2019-06-21 18:55:23
113.172.21.33 attackspam
Automatic report - SSH Brute-Force Attack
2019-06-21 19:09:26
198.108.67.107 attack
Portscan or hack attempt detected by psad/fwsnort
2019-06-21 18:43:47
183.189.200.98 attackspam
Jun 21 11:20:43 Ubuntu-1404-trusty-64-minimal sshd\[1984\]: Invalid user admin from 183.189.200.98
Jun 21 11:20:43 Ubuntu-1404-trusty-64-minimal sshd\[1984\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=183.189.200.98
Jun 21 11:20:45 Ubuntu-1404-trusty-64-minimal sshd\[1984\]: Failed password for invalid user admin from 183.189.200.98 port 54843 ssh2
Jun 21 11:20:47 Ubuntu-1404-trusty-64-minimal sshd\[1984\]: Failed password for invalid user admin from 183.189.200.98 port 54843 ssh2
Jun 21 11:20:50 Ubuntu-1404-trusty-64-minimal sshd\[1984\]: Failed password for invalid user admin from 183.189.200.98 port 54843 ssh2
2019-06-21 19:21:03
186.248.75.23 attackbots
IMAP brute force
...
2019-06-21 18:34:16
117.7.230.120 attackbotsspam
TCP port 445 (SMB) attempt blocked by firewall. [2019-06-21 11:21:50]
2019-06-21 18:39:41
107.170.237.113 attackbotsspam
1561108899 - 06/21/2019 11:21:39 Host: zg-0301d-23.stretchoid.com/107.170.237.113 Port: 161 UDP Blocked
2019-06-21 19:08:32
37.29.32.141 attack
Unauthorised access (Jun 21) SRC=37.29.32.141 LEN=40 TTL=53 ID=19798 TCP DPT=23 WINDOW=14314 SYN
2019-06-21 18:57:27
111.21.99.227 attackspambots
Automatic report - Web App Attack
2019-06-21 19:23:07
182.72.199.106 attackspambots
Jun 21 11:31:51 localhost sshd\[9953\]: Invalid user zong from 182.72.199.106 port 52011
Jun 21 11:31:51 localhost sshd\[9953\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.72.199.106
Jun 21 11:31:54 localhost sshd\[9953\]: Failed password for invalid user zong from 182.72.199.106 port 52011 ssh2
2019-06-21 19:06:03
95.131.145.86 attackbots
Unauthorised access (Jun 21) SRC=95.131.145.86 LEN=40 TTL=56 ID=64213 TCP DPT=8080 WINDOW=63621 SYN 
Unauthorised access (Jun 21) SRC=95.131.145.86 LEN=40 TTL=56 ID=10570 TCP DPT=8080 WINDOW=63621 SYN 
Unauthorised access (Jun 17) SRC=95.131.145.86 LEN=40 TTL=56 ID=715 TCP DPT=8080 WINDOW=63621 SYN
2019-06-21 19:24:37
177.20.180.26 attack
Brute force attempt
2019-06-21 19:17:41
209.141.51.150 attack
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=209.141.51.150  user=root
Failed password for root from 209.141.51.150 port 45849 ssh2
Failed password for root from 209.141.51.150 port 45849 ssh2
Failed password for root from 209.141.51.150 port 45849 ssh2
Failed password for root from 209.141.51.150 port 45849 ssh2
2019-06-21 18:46:08
14.246.205.184 attackbotsspam
Bitcoin reported to www.bitcoinabuse.com
Received:from static.vnpt.vn (static.vnpt.vn [14.246.205.184] (may be forged))
Subject:No Need To Be Heroic
2019-06-21 19:21:58
117.1.94.77 attackspam
Automatic report - SSH Brute-Force Attack
2019-06-21 18:45:16

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