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 <<>> 104.21.21.157
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 11532
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.21.157.			IN	A

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

;; Query time: 27 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:15:40 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 157.21.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 157.21.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
218.61.16.187 attack
1433/tcp
[2019-06-27]1pkt
2019-06-27 21:36:55
172.104.242.173 attackbotsspam
Attack Name 
WINNTI.Botnet
2019-06-27 21:08:24
191.240.84.96 attack
Brute force attempt
2019-06-27 21:50:56
181.48.116.50 attackbots
Jun 27 15:10:54 ArkNodeAT sshd\[24459\]: Invalid user md from 181.48.116.50
Jun 27 15:10:54 ArkNodeAT sshd\[24459\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.48.116.50
Jun 27 15:10:56 ArkNodeAT sshd\[24459\]: Failed password for invalid user md from 181.48.116.50 port 49908 ssh2
2019-06-27 21:47:48
151.234.87.27 attackspam
8080/tcp
[2019-06-27]1pkt
2019-06-27 21:35:06
132.232.32.54 attackspam
Jun 27 13:11:17 localhost sshd\[4161\]: Invalid user ubuntu from 132.232.32.54 port 50606
Jun 27 13:11:17 localhost sshd\[4161\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.232.32.54
Jun 27 13:11:19 localhost sshd\[4161\]: Failed password for invalid user ubuntu from 132.232.32.54 port 50606 ssh2
...
2019-06-27 21:22:24
185.137.111.123 attackbots
2019-06-27T18:27:06.905980ns1.unifynetsol.net postfix/smtpd\[11381\]: warning: unknown\[185.137.111.123\]: SASL LOGIN authentication failed: authentication failure
2019-06-27T18:27:43.036138ns1.unifynetsol.net postfix/smtpd\[11381\]: warning: unknown\[185.137.111.123\]: SASL LOGIN authentication failed: authentication failure
2019-06-27T18:28:18.848377ns1.unifynetsol.net postfix/smtpd\[12895\]: warning: unknown\[185.137.111.123\]: SASL LOGIN authentication failed: authentication failure
2019-06-27T18:28:54.054212ns1.unifynetsol.net postfix/smtpd\[11384\]: warning: unknown\[185.137.111.123\]: SASL LOGIN authentication failed: authentication failure
2019-06-27T18:29:30.059366ns1.unifynetsol.net postfix/smtpd\[11385\]: warning: unknown\[185.137.111.123\]: SASL LOGIN authentication failed: authentication failure
2019-06-27 21:15:07
188.93.209.151 attack
TCP src-port=56230   dst-port=25    dnsbl-sorbs abuseat-org barracuda       (Project Honey Pot rated Suspicious)   (809)
2019-06-27 21:19:55
201.16.251.121 attackbotsspam
$f2bV_matches
2019-06-27 21:35:53
1.165.161.158 attack
37215/tcp
[2019-06-27]1pkt
2019-06-27 21:40:39
187.20.134.136 attackbots
Jun 27 13:08:40 work-partkepr sshd\[31824\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=187.20.134.136  user=root
Jun 27 13:08:41 work-partkepr sshd\[31824\]: Failed password for root from 187.20.134.136 port 47407 ssh2
...
2019-06-27 21:10:18
186.224.164.179 attackbots
SMTP-sasl brute force
...
2019-06-27 21:24:59
142.93.222.224 attackspambots
142.93.222.224 - - \[27/Jun/2019:05:34:04 +0200\] "GET /wp-login.php HTTP/1.1" 200 1301 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
142.93.222.224 - - \[27/Jun/2019:05:34:09 +0200\] "POST /wp-login.php HTTP/1.1" 200 1704 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
142.93.222.224 - - \[27/Jun/2019:05:34:19 +0200\] "GET /wp-login.php HTTP/1.1" 200 1301 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
142.93.222.224 - - \[27/Jun/2019:05:34:22 +0200\] "POST /wp-login.php HTTP/1.1" 200 1684 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
142.93.222.224 - - \[27/Jun/2019:05:34:26 +0200\] "GET /wp-login.php HTTP/1.1" 200 1301 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
142.93.222.224 - - \[27/Jun/2019:05:34:29 +0200\] "POST /wp-login.php HTTP/1.1" 200 1688 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:6
2019-06-27 21:13:53
106.83.113.87 attackspam
22/tcp
[2019-06-27]1pkt
2019-06-27 21:48:42
218.2.108.162 attackbotsspam
2019-06-27T15:08:49.863076scmdmz1 sshd\[20602\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.2.108.162  user=ftp
2019-06-27T15:08:52.496252scmdmz1 sshd\[20602\]: Failed password for ftp from 218.2.108.162 port 2032 ssh2
2019-06-27T15:11:10.086143scmdmz1 sshd\[20655\]: Invalid user saturnin from 218.2.108.162 port 5497
...
2019-06-27 21:32:11

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