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 <<>> 104.21.31.81
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 10929
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.31.81.			IN	A

;; AUTHORITY SECTION:
.			443	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021700 1800 900 604800 86400

;; Query time: 17 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:23:47 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 81.31.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 81.31.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
120.92.80.120 attackspam
Invalid user tecmint from 120.92.80.120 port 35919
2020-05-14 13:35:09
139.59.135.84 attackbots
May 14 01:17:36 Host-KEWR-E sshd[21073]: Invalid user rumeno from 139.59.135.84 port 32976
...
2020-05-14 13:32:43
222.186.173.154 attack
May 14 07:52:47 prod4 sshd\[3699\]: Failed password for root from 222.186.173.154 port 36388 ssh2
May 14 07:53:03 prod4 sshd\[3784\]: Failed password for root from 222.186.173.154 port 37450 ssh2
May 14 07:53:06 prod4 sshd\[3784\]: Failed password for root from 222.186.173.154 port 37450 ssh2
...
2020-05-14 13:58:32
208.73.90.85 attackbots
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2020-05-14 14:03:26
188.166.144.207 attack
$f2bV_matches
2020-05-14 13:42:35
109.175.166.38 attack
Invalid user sonso from 109.175.166.38 port 40776
2020-05-14 13:33:13
163.172.163.112 attackbotsspam
May 14 05:53:17 debian-2gb-nbg1-2 kernel: \[11687252.209594\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=163.172.163.112 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=52 ID=19942 PROTO=TCP SPT=20462 DPT=23 WINDOW=12702 RES=0x00 SYN URGP=0
2020-05-14 13:27:39
178.87.144.168 attackbotsspam
SSH login attempts brute force.
2020-05-14 14:03:13
118.101.192.81 attackbots
Invalid user qwerty from 118.101.192.81 port 19435
2020-05-14 13:37:30
82.130.246.74 attack
May 14 05:46:43 roki-contabo sshd\[9748\]: Invalid user wwwuser from 82.130.246.74
May 14 05:46:43 roki-contabo sshd\[9748\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.130.246.74
May 14 05:46:45 roki-contabo sshd\[9748\]: Failed password for invalid user wwwuser from 82.130.246.74 port 54164 ssh2
May 14 05:52:56 roki-contabo sshd\[9837\]: Invalid user ts3server from 82.130.246.74
May 14 05:52:56 roki-contabo sshd\[9837\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.130.246.74
...
2020-05-14 13:44:27
185.153.197.10 attackspambots
May 14 07:20:29 debian-2gb-nbg1-2 kernel: \[11692484.539395\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=185.153.197.10 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=242 ID=58954 PROTO=TCP SPT=51563 DPT=3207 WINDOW=1024 RES=0x00 SYN URGP=0
2020-05-14 13:26:11
171.253.131.15 attackbots
[Thu May 14 05:41:29 2020] - Syn Flood From IP: 171.253.131.15 Port: 53702
2020-05-14 13:42:58
125.141.56.230 attack
Failed password for invalid user postgres from 125.141.56.230 port 48910 ssh2
2020-05-14 13:36:40
180.242.234.53 attackbots
"Unauthorized connection attempt on SSHD detected"
2020-05-14 14:05:27
106.12.27.11 attackspambots
May 14 05:52:42 vmd48417 sshd[23231]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.27.11
2020-05-14 13:57:28

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