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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.57.191
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4199
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.57.191.			IN	A

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

;; Query time: 61 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:14:07 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 191.57.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 191.57.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
112.251.110.252 attack
Unauthorized connection attempt detected from IP address 112.251.110.252 to port 23 [T]
2020-04-12 15:25:52
14.29.232.82 attack
2020-04-11T23:57:30.795641linuxbox-skyline sshd[67170]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.29.232.82  user=root
2020-04-11T23:57:33.101055linuxbox-skyline sshd[67170]: Failed password for root from 14.29.232.82 port 38318 ssh2
...
2020-04-12 15:23:40
178.128.231.82 attackspam
Unauthorized connection attempt detected from IP address 178.128.231.82 to port 8083
2020-04-12 15:31:06
122.194.12.132 attackbots
Port scan on 3 port(s): 2375 2376 2377
2020-04-12 15:28:44
180.164.51.146 attackspam
$f2bV_matches
2020-04-12 15:53:38
198.199.124.109 attackspam
Apr 12 06:50:28 ip-172-31-61-156 sshd[21668]: Failed password for invalid user aris from 198.199.124.109 port 42214 ssh2
Apr 12 06:59:03 ip-172-31-61-156 sshd[22062]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=198.199.124.109  user=root
Apr 12 06:59:05 ip-172-31-61-156 sshd[22062]: Failed password for root from 198.199.124.109 port 47683 ssh2
Apr 12 07:07:22 ip-172-31-61-156 sshd[22434]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=198.199.124.109  user=root
Apr 12 07:07:23 ip-172-31-61-156 sshd[22434]: Failed password for root from 198.199.124.109 port 53135 ssh2
...
2020-04-12 15:48:18
121.235.46.46 attackbotsspam
121.235.46.46 - - \[12/Apr/2020:05:53:43 +0200\] "GET http://api.gxout.com/proxy/check.aspx HTTP/1.1" 400 666 "http://api.gxout.com/proxy/check.aspx" "Mozilla/4.0 \(compatible\; MSIE 6.0\; Windows NT 5.1\)"
...
2020-04-12 15:51:01
167.71.223.51 attackbotsspam
Apr 12 04:47:58 vps46666688 sshd[23449]: Failed password for root from 167.71.223.51 port 37410 ssh2
...
2020-04-12 15:59:25
177.99.206.10 attack
Fail2Ban Ban Triggered
2020-04-12 16:02:23
106.12.205.237 attack
SSH invalid-user multiple login try
2020-04-12 15:30:45
46.101.33.198 attackbots
Apr 12 07:56:08 vserver sshd\[4374\]: Invalid user garcia from 46.101.33.198Apr 12 07:56:11 vserver sshd\[4374\]: Failed password for invalid user garcia from 46.101.33.198 port 35056 ssh2Apr 12 08:00:47 vserver sshd\[4426\]: Failed password for root from 46.101.33.198 port 43672 ssh2Apr 12 08:05:08 vserver sshd\[4499\]: Failed password for root from 46.101.33.198 port 52270 ssh2
...
2020-04-12 15:22:15
77.55.209.75 attack
Apr 12 07:46:29 plex sshd[2384]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=77.55.209.75  user=root
Apr 12 07:46:31 plex sshd[2384]: Failed password for root from 77.55.209.75 port 37612 ssh2
2020-04-12 15:29:33
185.176.27.34 attackspam
04/12/2020-03:21:34.432351 185.176.27.34 Protocol: 6 ET DROP Dshield Block Listed Source group 1
2020-04-12 15:32:31
122.51.109.222 attackspambots
ssh brute force
2020-04-12 15:42:52
223.71.167.166 attackbots
Apr 12 09:33:27 debian-2gb-nbg1-2 kernel: \[8935806.922189\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=223.71.167.166 DST=195.201.40.59 LEN=92 TOS=0x04 PREC=0x00 TTL=114 ID=40512 PROTO=UDP SPT=47505 DPT=17185 LEN=72
2020-04-12 15:41:43

Recently Reported IPs

104.21.57.233 104.21.57.154 104.21.57.165 104.21.57.167
13.225.71.42 104.21.57.236 104.21.57.219 104.21.57.237
104.21.57.239 104.21.57.24 104.21.57.241 104.21.57.80
104.21.57.74 104.21.57.67 104.21.57.87 104.21.57.50
104.21.57.36 104.21.57.99 104.21.57.44 104.21.58.103