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 <<>> 104.21.81.75
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 8502
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.75.			IN	A

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

;; Query time: 61 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 25 12:16:02 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 75.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 75.81.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
222.217.68.117 attackspam
unauthorized connection attempt
2020-03-10 16:38:11
192.241.225.133 attack
firewall-block, port(s): 2049/tcp
2020-03-10 16:42:20
24.233.110.183 attackbots
1583812198 - 03/10/2020 04:49:58 Host: 24.233.110.183/24.233.110.183 Port: 23 TCP Blocked
2020-03-10 16:57:10
104.245.144.45 attack
(From heck.hildegard@outlook.com) Do you want more people to visit your website? Receive thousands of people who are ready to buy sent directly to your website. Boost your profits super fast. Start seeing results in as little as 48 hours. For more info Have a look at: http://www.trafficmasters.xyz
2020-03-10 17:12:21
152.136.72.17 attack
Invalid user db2fenc2 from 152.136.72.17 port 53196
2020-03-10 17:16:51
191.33.228.219 attackbots
$f2bV_matches
2020-03-10 17:17:12
222.186.42.136 attackbotsspam
SSH Bruteforce attempt
2020-03-10 17:02:56
185.177.10.12 attackbots
detected by Fail2Ban
2020-03-10 17:16:25
171.244.51.114 attackspambots
Mar 10 04:36:00 vps46666688 sshd[7467]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=171.244.51.114
Mar 10 04:36:02 vps46666688 sshd[7467]: Failed password for invalid user edward from 171.244.51.114 port 53766 ssh2
...
2020-03-10 16:44:53
81.49.199.58 attackbotsspam
Mar 10 04:50:24 NPSTNNYC01T sshd[24063]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.49.199.58
Mar 10 04:50:26 NPSTNNYC01T sshd[24063]: Failed password for invalid user 1234!abcd from 81.49.199.58 port 59212 ssh2
Mar 10 04:54:51 NPSTNNYC01T sshd[24299]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.49.199.58
...
2020-03-10 17:09:37
175.145.232.73 attack
Mar 10 15:36:23 webhost01 sshd[26137]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.145.232.73
Mar 10 15:36:25 webhost01 sshd[26137]: Failed password for invalid user influxdb from 175.145.232.73 port 45706 ssh2
...
2020-03-10 17:18:24
111.68.125.106 attackbotsspam
Mar 10 01:54:08 vps46666688 sshd[4527]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.68.125.106
Mar 10 01:54:10 vps46666688 sshd[4527]: Failed password for invalid user !@#1q2w3e4r5t from 111.68.125.106 port 43546 ssh2
...
2020-03-10 16:58:38
195.54.166.249 attackbots
Mar 10 09:57:32 debian-2gb-nbg1-2 kernel: \[6089800.360695\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=195.54.166.249 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=246 ID=38329 PROTO=TCP SPT=58557 DPT=22422 WINDOW=1024 RES=0x00 SYN URGP=0
2020-03-10 17:13:20
87.119.200.21 attack
xmlrpc attack
2020-03-10 17:19:04
219.92.18.205 attackspambots
" "
2020-03-10 17:14:25

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