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: None

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 <<>> 104.21.91.66
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 26109
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.91.66.			IN	A

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

;; Query time: 56 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:22:18 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 66.91.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 66.91.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
104.244.75.244 attackbots
SSH Brute Force
2019-12-03 17:42:22
81.22.45.253 attack
Dec  3 10:49:59 mc1 kernel: \[6652807.436441\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.253 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=51213 PROTO=TCP SPT=51645 DPT=1862 WINDOW=1024 RES=0x00 SYN URGP=0 
Dec  3 10:51:23 mc1 kernel: \[6652890.668243\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.253 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=30183 PROTO=TCP SPT=51645 DPT=46388 WINDOW=1024 RES=0x00 SYN URGP=0 
Dec  3 10:54:26 mc1 kernel: \[6653073.715686\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.253 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=49736 PROTO=TCP SPT=51645 DPT=30120 WINDOW=1024 RES=0x00 SYN URGP=0 
...
2019-12-03 18:10:55
164.132.98.75 attack
Dec  2 23:09:07 hanapaa sshd\[22827\]: Invalid user vanderstraeten from 164.132.98.75
Dec  2 23:09:07 hanapaa sshd\[22827\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=75.ip-164-132-98.eu
Dec  2 23:09:09 hanapaa sshd\[22827\]: Failed password for invalid user vanderstraeten from 164.132.98.75 port 57353 ssh2
Dec  2 23:14:31 hanapaa sshd\[23263\]: Invalid user teamspeak from 164.132.98.75
Dec  2 23:14:31 hanapaa sshd\[23263\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=75.ip-164-132-98.eu
2019-12-03 17:56:55
219.140.20.137 attackspam
firewall-block, port(s): 23/tcp
2019-12-03 17:41:19
212.64.44.165 attack
Dec  3 04:39:54 ny01 sshd[23864]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.64.44.165
Dec  3 04:39:57 ny01 sshd[23864]: Failed password for invalid user stavely from 212.64.44.165 port 39688 ssh2
Dec  3 04:46:52 ny01 sshd[24663]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.64.44.165
2019-12-03 18:01:30
201.48.206.146 attack
Dec  3 09:59:00 v22018086721571380 sshd[4030]: Failed password for invalid user test from 201.48.206.146 port 45467 ssh2
2019-12-03 17:52:19
178.128.81.125 attackspam
Dec  3 08:55:35 marvibiene sshd[18291]: Invalid user cron from 178.128.81.125 port 64963
Dec  3 08:55:35 marvibiene sshd[18291]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.81.125
Dec  3 08:55:35 marvibiene sshd[18291]: Invalid user cron from 178.128.81.125 port 64963
Dec  3 08:55:37 marvibiene sshd[18291]: Failed password for invalid user cron from 178.128.81.125 port 64963 ssh2
...
2019-12-03 17:40:26
95.213.129.162 attackbots
RDP Brute Force attempt, PTR: None
2019-12-03 17:53:40
94.102.49.65 attackspambots
Fail2Ban Ban Triggered
2019-12-03 17:50:07
80.22.196.101 attackspambots
fail2ban
2019-12-03 17:36:36
220.129.97.148 attackspam
scan z
2019-12-03 17:54:17
190.129.47.148 attack
Dec  2 21:39:14 penfold sshd[12851]: Invalid user victor from 190.129.47.148 port 37416
Dec  2 21:39:14 penfold sshd[12851]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.129.47.148 
Dec  2 21:39:17 penfold sshd[12851]: Failed password for invalid user victor from 190.129.47.148 port 37416 ssh2
Dec  2 21:39:17 penfold sshd[12851]: Received disconnect from 190.129.47.148 port 37416:11: Bye Bye [preauth]
Dec  2 21:39:17 penfold sshd[12851]: Disconnected from 190.129.47.148 port 37416 [preauth]
Dec  2 21:51:22 penfold sshd[13566]: Invalid user miyama from 190.129.47.148 port 37670
Dec  2 21:51:22 penfold sshd[13566]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.129.47.148 
Dec  2 21:51:25 penfold sshd[13566]: Failed password for invalid user miyama from 190.129.47.148 port 37670 ssh2
Dec  2 21:51:25 penfold sshd[13566]: Received disconnect from 190.129.47.148 port 37670:11: Bye Bye........
-------------------------------
2019-12-03 18:02:06
179.107.111.106 attackbots
2019-12-03T09:38:40.160065abusebot-8.cloudsearch.cf sshd\[16314\]: Invalid user siarah from 179.107.111.106 port 47372
2019-12-03 18:11:25
153.37.98.243 attack
Unauthorized SSH login attempts
2019-12-03 17:47:32
116.31.105.198 attackspambots
Dec  3 07:18:58 localhost sshd\[21557\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.31.105.198  user=root
Dec  3 07:18:59 localhost sshd\[21557\]: Failed password for root from 116.31.105.198 port 46856 ssh2
Dec  3 07:26:46 localhost sshd\[22266\]: Invalid user boullanger from 116.31.105.198
Dec  3 07:26:46 localhost sshd\[22266\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.31.105.198
Dec  3 07:26:49 localhost sshd\[22266\]: Failed password for invalid user boullanger from 116.31.105.198 port 41964 ssh2
...
2019-12-03 17:59:23

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