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 <<>> 104.21.0.81
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 44603
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.0.81.			IN	A

;; AUTHORITY SECTION:
.			113	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021602 1800 900 604800 86400

;; Query time: 56 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 07:41:05 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 81.0.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 81.0.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
49.235.209.37 attack
SSH Brute Force
2020-01-23 15:13:14
160.120.165.107 attackbotsspam
Unauthorised access (Jan 22) SRC=160.120.165.107 LEN=44 TOS=0x08 PREC=0x20 TTL=237 ID=28141 TCP DPT=1433 WINDOW=1024 SYN
2020-01-23 15:23:50
158.69.70.163 attack
Unauthorized connection attempt detected from IP address 158.69.70.163 to port 2220 [J]
2020-01-23 15:00:13
106.51.137.113 attack
Jan 15 06:48:51 host sshd[57661]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.51.137.113
Jan 15 06:48:51 host sshd[57661]: Invalid user deploy from 106.51.137.113 port 42586
Jan 15 06:48:53 host sshd[57661]: Failed password for invalid user deploy from 106.51.137.113 port 42586 ssh2
...
2020-01-23 15:11:33
68.183.110.49 attackspam
Invalid user kate from 68.183.110.49 port 51446
2020-01-23 15:11:50
118.25.142.138 attack
(sshd) Failed SSH login from 118.25.142.138 (CN/China/-): 2 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Jan 22 18:12:38 ubnt-55d23 sshd[3950]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.25.142.138  user=root
Jan 22 18:12:39 ubnt-55d23 sshd[3950]: Failed password for root from 118.25.142.138 port 44172 ssh2
2020-01-23 15:41:02
200.146.215.26 attack
Unauthorized connection attempt detected from IP address 200.146.215.26 to port 2220 [J]
2020-01-23 15:33:01
179.107.111.106 attackspam
Unauthorized connection attempt detected from IP address 179.107.111.106 to port 2220 [J]
2020-01-23 15:01:58
49.235.213.48 attack
Invalid user ftpadmin from 49.235.213.48 port 38074
2020-01-23 15:14:03
185.209.0.91 attackbotsspam
firewall-block, port(s): 4999/tcp
2020-01-23 15:34:53
157.55.39.95 attack
Automatic report - Banned IP Access
2020-01-23 15:41:41
211.23.125.95 attackspam
Jan 16 11:48:32 host sshd[31196]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=211-23-125-95.hinet-ip.hinet.net  user=root
Jan 16 11:48:33 host sshd[31196]: Failed password for root from 211.23.125.95 port 34130 ssh2
...
2020-01-23 15:23:17
185.220.101.6 attackbots
01/23/2020-04:35:53.231695 185.220.101.6 Protocol: 6 ET TOR Known Tor Exit Node Traffic group 33
2020-01-23 15:38:11
68.183.169.251 attackbots
Unauthorized connection attempt detected from IP address 68.183.169.251 to port 2220 [J]
2020-01-23 14:57:34
193.112.62.103 attackspam
Unauthorized connection attempt detected from IP address 193.112.62.103 to port 2220 [J]
2020-01-23 15:01:10

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