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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.16.42
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 28638
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.16.42.			IN	A

;; AUTHORITY SECTION:
.			532	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021602 1800 900 604800 86400

;; Query time: 74 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 08:07:48 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 42.16.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 42.16.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
2.32.82.50 attackspambots
$f2bV_matches
2020-07-11 00:20:30
47.247.111.89 attack
Unauthorized connection attempt from IP address 47.247.111.89 on Port 445(SMB)
2020-07-11 00:47:26
109.174.12.9 attackbotsspam
Jul 10 14:32:51 ns382633 sshd\[26867\]: Invalid user pi from 109.174.12.9 port 53194
Jul 10 14:32:51 ns382633 sshd\[26866\]: Invalid user pi from 109.174.12.9 port 53192
Jul 10 14:32:51 ns382633 sshd\[26867\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=109.174.12.9
Jul 10 14:32:51 ns382633 sshd\[26866\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=109.174.12.9
Jul 10 14:32:53 ns382633 sshd\[26867\]: Failed password for invalid user pi from 109.174.12.9 port 53194 ssh2
Jul 10 14:32:53 ns382633 sshd\[26866\]: Failed password for invalid user pi from 109.174.12.9 port 53192 ssh2
2020-07-11 00:38:49
124.152.118.131 attackspambots
Jul 10 12:36:55 firewall sshd[11606]: Invalid user renjiawei from 124.152.118.131
Jul 10 12:36:56 firewall sshd[11606]: Failed password for invalid user renjiawei from 124.152.118.131 port 2815 ssh2
Jul 10 12:40:03 firewall sshd[11650]: Invalid user minecraft from 124.152.118.131
...
2020-07-11 00:30:43
112.85.42.104 attack
Jul 10 11:43:11 vm0 sshd[14908]: Failed password for root from 112.85.42.104 port 58251 ssh2
Jul 10 18:32:36 vm0 sshd[23125]: Failed password for root from 112.85.42.104 port 27425 ssh2
...
2020-07-11 00:39:46
170.130.48.56 attack
2020-07-10 07:23:59.550504-0500  localhost smtpd[21994]: NOQUEUE: reject: RCPT from unknown[170.130.48.56]: 450 4.7.25 Client host rejected: cannot find your hostname, [170.130.48.56]; from= to= proto=ESMTP helo=<00ea89e3.thyroidmess.xyz>
2020-07-11 00:20:49
141.98.9.156 attack
Jul 10 15:57:55 *** sshd[26759]: User root from 141.98.9.156 not allowed because not listed in AllowUsers
2020-07-11 00:26:53
179.185.78.91 attack
SSH Brute Force
2020-07-11 00:19:13
139.59.108.237 attackbotsspam
Jul 10 10:56:39 ws24vmsma01 sshd[230760]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.108.237
Jul 10 10:56:40 ws24vmsma01 sshd[230760]: Failed password for invalid user dinah from 139.59.108.237 port 43646 ssh2
...
2020-07-11 00:26:24
62.182.146.203 attack
failed_logins
2020-07-11 00:37:28
138.36.1.254 attackspam
SSH Login Bruteforce
2020-07-11 00:14:33
70.35.195.182 attack
Invalid user daile from 70.35.195.182 port 11907
2020-07-11 00:27:55
188.25.38.88 attack
Attempted WordPress login: "GET /wp-login.php"
2020-07-11 00:04:42
79.124.62.55 attackbotsspam
 TCP (SYN) 79.124.62.55:41868 -> port 443, len 40
2020-07-11 00:05:03
47.97.159.26 attackbots
Failed password for invalid user solaris from 47.97.159.26 port 55064 ssh2
2020-07-11 00:31:33

Recently Reported IPs

104.21.16.33 104.21.16.48 104.21.16.66 219.97.72.80
104.21.16.9 104.21.16.90 210.224.109.7 104.21.17.106
104.21.17.110 245.143.184.147 104.21.17.112 104.21.17.119
104.21.17.154 104.21.17.172 104.21.17.221 104.21.17.226
104.21.17.237 104.21.17.55 2001:14ba:a8c9:8100:a049:6203:eebe:5a13 104.21.17.69