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 <<>> 104.21.57.75
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 27244
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.57.75.			IN	A

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

;; Query time: 61 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 00:36:02 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 75.57.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 75.57.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
222.186.175.150 attackspambots
Oct  9 20:13:49 gw1 sshd[2587]: Failed password for root from 222.186.175.150 port 35576 ssh2
Oct  9 20:14:08 gw1 sshd[2587]: error: maximum authentication attempts exceeded for root from 222.186.175.150 port 35576 ssh2 [preauth]
...
2019-10-09 23:27:34
157.181.161.193 attack
Oct  9 05:28:22 auw2 sshd\[11371\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=cgraf.inf.elte.hu  user=root
Oct  9 05:28:24 auw2 sshd\[11371\]: Failed password for root from 157.181.161.193 port 46920 ssh2
Oct  9 05:32:42 auw2 sshd\[11747\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=cgraf.inf.elte.hu  user=root
Oct  9 05:32:45 auw2 sshd\[11747\]: Failed password for root from 157.181.161.193 port 58556 ssh2
Oct  9 05:37:03 auw2 sshd\[12087\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=cgraf.inf.elte.hu  user=root
2019-10-09 23:44:08
178.216.202.56 attack
Oct  9 05:23:33 eddieflores sshd\[32289\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=cc.smarteducation.pl  user=root
Oct  9 05:23:35 eddieflores sshd\[32289\]: Failed password for root from 178.216.202.56 port 58262 ssh2
Oct  9 05:27:53 eddieflores sshd\[32620\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=cc.smarteducation.pl  user=root
Oct  9 05:27:56 eddieflores sshd\[32620\]: Failed password for root from 178.216.202.56 port 47137 ssh2
Oct  9 05:32:16 eddieflores sshd\[844\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=cc.smarteducation.pl  user=root
2019-10-09 23:48:32
212.1.102.234 attack
212.1.102.234 - - \[09/Oct/2019:13:34:55 +0200\] "GET http://chekfast.zennolab.com/proxy.php HTTP/1.1" 404 47 "RefererString" "Mozilla/5.0 \(Windows NT 10.0\; WOW64\; rv:45.0\) Gecko/20100101 Firefox/45.0"
...
2019-10-09 23:48:48
104.197.148.36 attackspam
Automatic report - XMLRPC Attack
2019-10-09 23:56:31
223.197.175.171 attack
SSH scan ::
2019-10-09 23:39:13
182.254.172.159 attackspambots
Oct  9 14:27:40 vtv3 sshd\[26760\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.254.172.159  user=root
Oct  9 14:27:42 vtv3 sshd\[26760\]: Failed password for root from 182.254.172.159 port 59404 ssh2
Oct  9 14:31:55 vtv3 sshd\[29014\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.254.172.159  user=root
Oct  9 14:31:58 vtv3 sshd\[29014\]: Failed password for root from 182.254.172.159 port 36792 ssh2
Oct  9 14:36:07 vtv3 sshd\[31343\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.254.172.159  user=root
Oct  9 14:48:29 vtv3 sshd\[5508\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.254.172.159  user=root
Oct  9 14:48:30 vtv3 sshd\[5508\]: Failed password for root from 182.254.172.159 port 59248 ssh2
Oct  9 14:52:46 vtv3 sshd\[7732\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh rus
2019-10-09 23:19:27
64.79.101.52 attackbotsspam
Triggered by Fail2Ban at Vostok web server
2019-10-09 23:45:43
123.201.20.30 attackspambots
Oct  9 15:32:47 anodpoucpklekan sshd[20034]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.201.20.30  user=root
Oct  9 15:32:49 anodpoucpklekan sshd[20034]: Failed password for root from 123.201.20.30 port 38401 ssh2
...
2019-10-09 23:39:40
222.186.180.9 attack
Oct  9 05:20:56 auw2 sshd\[10754\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.9  user=root
Oct  9 05:20:57 auw2 sshd\[10754\]: Failed password for root from 222.186.180.9 port 63150 ssh2
Oct  9 05:21:02 auw2 sshd\[10754\]: Failed password for root from 222.186.180.9 port 63150 ssh2
Oct  9 05:21:06 auw2 sshd\[10754\]: Failed password for root from 222.186.180.9 port 63150 ssh2
Oct  9 05:21:10 auw2 sshd\[10754\]: Failed password for root from 222.186.180.9 port 63150 ssh2
2019-10-09 23:34:19
187.26.137.78 attack
SASL broute force
2019-10-09 23:26:16
157.230.119.200 attackbotsspam
Oct  9 03:39:39 friendsofhawaii sshd\[8545\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.119.200  user=root
Oct  9 03:39:41 friendsofhawaii sshd\[8545\]: Failed password for root from 157.230.119.200 port 42038 ssh2
Oct  9 03:43:13 friendsofhawaii sshd\[8836\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.119.200  user=root
Oct  9 03:43:15 friendsofhawaii sshd\[8836\]: Failed password for root from 157.230.119.200 port 52758 ssh2
Oct  9 03:46:53 friendsofhawaii sshd\[9130\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.119.200  user=root
2019-10-09 23:27:02
177.152.187.218 attackbotsspam
SPF Fail sender not permitted to send mail for @brdigital.net.br / Sent mail to target address hacked/leaked from abandonia in 2016
2019-10-09 23:37:59
197.156.67.251 attackbotsspam
Oct  9 17:18:34 meumeu sshd[31801]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=197.156.67.251 
Oct  9 17:18:36 meumeu sshd[31801]: Failed password for invalid user @WSX!QAZ from 197.156.67.251 port 53494 ssh2
Oct  9 17:23:28 meumeu sshd[32579]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=197.156.67.251 
...
2019-10-09 23:37:36
79.2.22.244 attack
Oct  9 17:04:08 vps691689 sshd[32081]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=79.2.22.244
Oct  9 17:04:10 vps691689 sshd[32081]: Failed password for invalid user Heslo111 from 79.2.22.244 port 38610 ssh2
Oct  9 17:09:12 vps691689 sshd[32160]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=79.2.22.244
...
2019-10-09 23:23:30

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