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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.42.91
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 933
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.42.91.			IN	A

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

;; Query time: 62 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:29:58 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 91.42.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 91.42.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
118.24.123.136 attack
k+ssh-bruteforce
2020-08-23 16:21:19
85.206.162.212 attack
0,31-18/12 [bc10/m123] PostRequest-Spammer scoring: zurich
2020-08-23 16:41:05
178.209.170.75 attackbots
178.209.170.75 - - [23/Aug/2020:06:59:42 +0200] "POST /wp-login.php HTTP/1.0" 200 4719 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...
2020-08-23 16:54:20
138.197.25.187 attackbotsspam
Aug 23 09:29:24 vps1 sshd[10079]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.25.187 
Aug 23 09:29:26 vps1 sshd[10079]: Failed password for invalid user bob from 138.197.25.187 port 54706 ssh2
Aug 23 09:32:36 vps1 sshd[10116]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.25.187 
Aug 23 09:32:38 vps1 sshd[10116]: Failed password for invalid user postgres from 138.197.25.187 port 56902 ssh2
Aug 23 09:35:55 vps1 sshd[10148]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.25.187  user=root
Aug 23 09:35:57 vps1 sshd[10148]: Failed password for invalid user root from 138.197.25.187 port 59108 ssh2
...
2020-08-23 16:57:58
192.241.202.169 attackspam
2020-08-23T15:17:19.111494hostname sshd[97338]: Invalid user ff from 192.241.202.169 port 51856
...
2020-08-23 16:25:20
188.166.144.207 attack
Time:     Sun Aug 23 03:08:50 2020 -0400
IP:       188.166.144.207 (GB/United Kingdom/-)
Failures: 5 (sshd)
Interval: 3600 seconds
Blocked:  Permanent Block [LF_SSHD]

Log entries:

Aug 23 02:53:47 pv-11-ams1 sshd[16779]: Invalid user virtual from 188.166.144.207 port 53986
Aug 23 02:53:50 pv-11-ams1 sshd[16779]: Failed password for invalid user virtual from 188.166.144.207 port 53986 ssh2
Aug 23 03:04:28 pv-11-ams1 sshd[17202]: Invalid user admin from 188.166.144.207 port 49868
Aug 23 03:04:30 pv-11-ams1 sshd[17202]: Failed password for invalid user admin from 188.166.144.207 port 49868 ssh2
Aug 23 03:08:44 pv-11-ams1 sshd[17345]: Invalid user luan from 188.166.144.207 port 52234
2020-08-23 16:40:21
94.102.50.137 attackbotsspam
firewall-block, port(s): 10227/tcp
2020-08-23 16:38:46
220.225.126.55 attack
Aug 23 11:21:41 root sshd[16369]: Invalid user glf from 220.225.126.55
...
2020-08-23 16:35:54
203.90.233.7 attackspam
2020-08-23T13:52:01.565496hostname sshd[67950]: Invalid user mukti from 203.90.233.7 port 34340
2020-08-23T13:52:03.884636hostname sshd[67950]: Failed password for invalid user mukti from 203.90.233.7 port 34340 ssh2
2020-08-23T13:57:57.240064hostname sshd[68674]: Invalid user webdev from 203.90.233.7 port 23465
...
2020-08-23 16:48:03
41.79.19.166 attackbotsspam
"SMTP brute force auth login attempt."
2020-08-23 16:51:21
182.254.145.29 attackspam
21 attempts against mh-ssh on cloud
2020-08-23 16:20:31
104.198.16.231 attackbots
2020-08-23T07:46:28.934340dmca.cloudsearch.cf sshd[1061]: Invalid user sadmin from 104.198.16.231 port 58992
2020-08-23T07:46:28.939209dmca.cloudsearch.cf sshd[1061]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=231.16.198.104.bc.googleusercontent.com
2020-08-23T07:46:28.934340dmca.cloudsearch.cf sshd[1061]: Invalid user sadmin from 104.198.16.231 port 58992
2020-08-23T07:46:31.100150dmca.cloudsearch.cf sshd[1061]: Failed password for invalid user sadmin from 104.198.16.231 port 58992 ssh2
2020-08-23T07:54:29.172951dmca.cloudsearch.cf sshd[1263]: Invalid user user from 104.198.16.231 port 53948
2020-08-23T07:54:29.178518dmca.cloudsearch.cf sshd[1263]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=231.16.198.104.bc.googleusercontent.com
2020-08-23T07:54:29.172951dmca.cloudsearch.cf sshd[1263]: Invalid user user from 104.198.16.231 port 53948
2020-08-23T07:54:31.043113dmca.cloudsearch.cf sshd[1263]: Fail
...
2020-08-23 16:30:56
51.77.200.139 attackspambots
Aug 23 11:28:25 ift sshd\[56790\]: Failed password for root from 51.77.200.139 port 54922 ssh2Aug 23 11:30:33 ift sshd\[57326\]: Invalid user xufang from 51.77.200.139Aug 23 11:30:36 ift sshd\[57326\]: Failed password for invalid user xufang from 51.77.200.139 port 34366 ssh2Aug 23 11:32:43 ift sshd\[57543\]: Failed password for root from 51.77.200.139 port 42046 ssh2Aug 23 11:34:53 ift sshd\[57860\]: Invalid user xxxxxxxx from 51.77.200.139
...
2020-08-23 16:38:02
24.172.172.2 attackspambots
Invalid user hades from 24.172.172.2 port 40052
2020-08-23 16:44:48
62.210.246.66 attackspambots
2020-08-23T10:09:03.825326mail.standpoint.com.ua sshd[13419]: Failed password for storage from 62.210.246.66 port 51590 ssh2
2020-08-23T10:09:06.159878mail.standpoint.com.ua sshd[13419]: Failed password for storage from 62.210.246.66 port 51590 ssh2
2020-08-23T10:09:07.572928mail.standpoint.com.ua sshd[13419]: Failed password for storage from 62.210.246.66 port 51590 ssh2
2020-08-23T10:09:10.125610mail.standpoint.com.ua sshd[13419]: Failed password for storage from 62.210.246.66 port 51590 ssh2
2020-08-23T10:09:12.434305mail.standpoint.com.ua sshd[13419]: Failed password for storage from 62.210.246.66 port 51590 ssh2
...
2020-08-23 16:26:07

Recently Reported IPs

104.21.42.92 104.21.42.96 104.21.43.100 104.21.43.105
104.21.43.106 104.21.42.99 104.21.42.78 104.21.43.114
104.21.43.112 248.159.100.84 104.21.69.89 104.21.43.115
104.21.43.118 104.21.43.121 104.21.43.123 104.21.43.126
104.21.43.137 104.21.43.149 104.21.43.153 104.21.43.14