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 <<>> 104.21.5.16
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 16416
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.5.16.			IN	A

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

;; Query time: 19 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 23:21:36 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 16.5.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 16.5.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
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36.229.77.93 attackbotsspam
1586437252 - 04/09/2020 15:00:52 Host: 36.229.77.93/36.229.77.93 Port: 445 TCP Blocked
2020-04-10 01:18:57
185.156.73.52 attack
04/09/2020-12:38:00.220357 185.156.73.52 Protocol: 6 ET SCAN NMAP -sS window 1024
2020-04-10 01:44:15
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Unauthorized connection attempt from IP address 27.79.244.67 on Port 445(SMB)
2020-04-10 01:43:37
101.109.234.6 attackspambots
1586437216 - 04/09/2020 15:00:16 Host: 101.109.234.6/101.109.234.6 Port: 445 TCP Blocked
2020-04-10 01:57:43
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leo_www
2020-04-10 01:52:49
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Unauthorized connection attempt from IP address 2.181.179.55 on Port 445(SMB)
2020-04-10 01:14:55
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SSH brute force attempt @ 2020-04-09 18:36:04
2020-04-10 01:47:30
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Unauthorized connection attempt from IP address 42.118.2.205 on Port 445(SMB)
2020-04-10 01:14:38
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Unauthorized connection attempt from IP address 36.73.255.252 on Port 445(SMB)
2020-04-10 01:53:23
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Automatic report - Port Scan Attack
2020-04-10 01:38:45
122.51.163.237 attackspambots
Apr 10 00:01:02 itv-usvr-01 sshd[23821]: Invalid user test from 122.51.163.237
2020-04-10 01:34:40
77.42.97.184 attack
Automatic report - Port Scan Attack
2020-04-10 01:34:06
106.54.128.79 attackspambots
Apr  9 18:30:07 tuxlinux sshd[42083]: Invalid user admin from 106.54.128.79 port 35872
Apr  9 18:30:07 tuxlinux sshd[42083]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.128.79 
Apr  9 18:30:07 tuxlinux sshd[42083]: Invalid user admin from 106.54.128.79 port 35872
Apr  9 18:30:07 tuxlinux sshd[42083]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.128.79 
Apr  9 18:30:07 tuxlinux sshd[42083]: Invalid user admin from 106.54.128.79 port 35872
Apr  9 18:30:07 tuxlinux sshd[42083]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.128.79 
Apr  9 18:30:10 tuxlinux sshd[42083]: Failed password for invalid user admin from 106.54.128.79 port 35872 ssh2
...
2020-04-10 01:35:59
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2020-04-10 01:28:36
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Unauthorized connection attempt from IP address 113.21.70.52 on Port 445(SMB)
2020-04-10 01:38:21

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