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 <<>> 104.21.56.138
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 42247
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.56.138.			IN	A

;; AUTHORITY SECTION:
.			600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 20 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:37:38 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 138.56.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 138.56.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
160.202.161.233 attackspambots
Portscan or hack attempt detected by psad/fwsnort
2019-12-28 21:32:23
82.147.74.30 attackspam
firewall-block, port(s): 23/tcp
2019-12-28 21:20:29
111.8.34.154 attackbotsspam
Port 1433 Scan
2019-12-28 21:24:27
41.73.252.236 attackbots
Invalid user paul1234 from 41.73.252.236 port 40444
2019-12-28 21:17:27
117.35.118.42 attack
Invalid user catering2 from 117.35.118.42 port 59785
2019-12-28 21:37:48
113.69.207.165 attack
Dec 28 07:20:10 mail postfix/smtpd[28122]: warning: unknown[113.69.207.165]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Dec 28 07:20:20 mail postfix/smtpd[28122]: warning: unknown[113.69.207.165]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Dec 28 07:20:32 mail postfix/smtpd[28122]: warning: unknown[113.69.207.165]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2019-12-28 21:25:52
182.30.93.240 attack
firewall-block, port(s): 445/tcp
2019-12-28 21:35:35
185.156.73.66 attack
12/28/2019-07:49:59.219847 185.156.73.66 Protocol: 6 ET SCAN NMAP -sS window 1024
2019-12-28 21:19:52
52.117.216.53 attackbotsspam
Invalid user srang from 52.117.216.53 port 46800
2019-12-28 21:26:51
122.241.28.145 attackbotsspam
SSH invalid-user multiple login try
2019-12-28 21:29:16
218.92.0.165 attackspam
Dec 28 14:11:57 h2779839 sshd[4101]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.165  user=root
Dec 28 14:11:59 h2779839 sshd[4101]: Failed password for root from 218.92.0.165 port 38258 ssh2
Dec 28 14:12:12 h2779839 sshd[4101]: error: maximum authentication attempts exceeded for root from 218.92.0.165 port 38258 ssh2 [preauth]
Dec 28 14:11:57 h2779839 sshd[4101]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.165  user=root
Dec 28 14:11:59 h2779839 sshd[4101]: Failed password for root from 218.92.0.165 port 38258 ssh2
Dec 28 14:12:12 h2779839 sshd[4101]: error: maximum authentication attempts exceeded for root from 218.92.0.165 port 38258 ssh2 [preauth]
Dec 28 14:12:16 h2779839 sshd[4103]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.165  user=root
Dec 28 14:12:19 h2779839 sshd[4103]: Failed password for root from 218.92.0.165 port 
...
2019-12-28 21:13:25
47.74.223.87 attackbotsspam
Honeypot attack, port: 23, PTR: PTR record not found
2019-12-28 21:31:13
221.2.158.54 attackbots
Dec 27 10:08:39 server sshd\[14777\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.2.158.54  user=root
Dec 27 10:08:42 server sshd\[14777\]: Failed password for root from 221.2.158.54 port 40637 ssh2
Dec 28 09:00:41 server sshd\[5492\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.2.158.54  user=root
Dec 28 09:00:43 server sshd\[5492\]: Failed password for root from 221.2.158.54 port 51704 ssh2
Dec 28 09:20:49 server sshd\[9493\]: Invalid user lisa from 221.2.158.54
Dec 28 09:20:49 server sshd\[9493\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.2.158.54 
...
2019-12-28 21:13:49
122.224.6.214 attackbots
Honeypot attack, port: 445, PTR: PTR record not found
2019-12-28 21:40:56
24.4.128.213 attackspam
$f2bV_matches
2019-12-28 21:47:38

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