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: None

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 <<>> 104.21.16.207
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 50626
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.16.207.			IN	A

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

;; Query time: 21 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 18:12:14 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 207.16.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 207.16.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
51.75.51.32 attack
Nov 14 04:31:09 firewall sshd[17872]: Invalid user lumbra from 51.75.51.32
Nov 14 04:31:11 firewall sshd[17872]: Failed password for invalid user lumbra from 51.75.51.32 port 56581 ssh2
Nov 14 04:34:50 firewall sshd[17966]: Invalid user stavrum from 51.75.51.32
...
2019-11-14 16:16:53
60.170.203.83 attackspambots
UTC: 2019-11-13 port: 23/tcp
2019-11-14 16:22:19
107.175.92.26 attackspam
Nov 14 07:40:18 sd-53420 sshd\[10527\]: Invalid user heyerdal from 107.175.92.26
Nov 14 07:40:18 sd-53420 sshd\[10527\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.175.92.26
Nov 14 07:40:20 sd-53420 sshd\[10527\]: Failed password for invalid user heyerdal from 107.175.92.26 port 54692 ssh2
Nov 14 07:44:07 sd-53420 sshd\[11561\]: Invalid user appenzeller from 107.175.92.26
Nov 14 07:44:07 sd-53420 sshd\[11561\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.175.92.26
...
2019-11-14 16:17:19
81.12.159.146 attackspambots
Invalid user jboss from 81.12.159.146 port 55114
2019-11-14 16:10:41
83.97.20.46 attackspambots
11/14/2019-09:29:11.902568 83.97.20.46 Protocol: 6 ET DROP Dshield Block Listed Source group 1
2019-11-14 16:33:26
178.128.112.98 attackbotsspam
Nov 14 08:54:54 XXX sshd[19402]: Invalid user ofsaa from 178.128.112.98 port 52592
2019-11-14 16:07:02
191.241.49.75 attackspambots
UTC: 2019-11-13 port: 80/tcp
2019-11-14 16:37:39
218.17.185.45 attack
Nov 14 09:11:21 dedicated sshd[3757]: Invalid user comer from 218.17.185.45 port 47862
2019-11-14 16:28:26
125.212.201.7 attackspambots
Nov 14 08:01:16 zeus sshd[21684]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=125.212.201.7 
Nov 14 08:01:17 zeus sshd[21684]: Failed password for invalid user hoski from 125.212.201.7 port 13609 ssh2
Nov 14 08:06:00 zeus sshd[21751]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=125.212.201.7 
Nov 14 08:06:02 zeus sshd[21751]: Failed password for invalid user elodie12345 from 125.212.201.7 port 22838 ssh2
2019-11-14 16:18:45
115.48.18.51 attackspam
UTC: 2019-11-13 port: 23/tcp
2019-11-14 16:19:12
124.156.139.104 attackbots
Nov 14 03:28:13 ws19vmsma01 sshd[159804]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.156.139.104
Nov 14 03:28:14 ws19vmsma01 sshd[159804]: Failed password for invalid user awsview from 124.156.139.104 port 36738 ssh2
...
2019-11-14 16:32:10
163.172.207.104 attack
\[2019-11-14 03:20:25\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-11-14T03:20:25.041-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="258011972592277524",SessionID="0x7fdf2c53e5e8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/163.172.207.104/64763",ACLName="no_extension_match"
\[2019-11-14 03:25:35\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-11-14T03:25:35.004-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="1100110011972592277524",SessionID="0x7fdf2c53e5e8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/163.172.207.104/56347",ACLName="no_extension_match"
\[2019-11-14 03:29:30\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-11-14T03:29:30.455-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="8011972595725636",SessionID="0x7fdf2c09e0a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/163.172.207.104/56579
2019-11-14 16:31:47
190.14.240.74 attack
SSH Brute Force, server-1 sshd[12971]: Failed password for invalid user hansquine from 190.14.240.74 port 41520 ssh2
2019-11-14 16:38:48
51.83.33.156 attackbotsspam
Nov 14 08:46:05 SilenceServices sshd[11519]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.33.156
Nov 14 08:46:07 SilenceServices sshd[11519]: Failed password for invalid user password from 51.83.33.156 port 47076 ssh2
Nov 14 08:49:33 SilenceServices sshd[12482]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.33.156
2019-11-14 16:06:33
193.32.160.151 attack
Nov 14 14:52:31 staklim-malang postfix/smtpd[21281]: 11B37232DF: reject: RCPT from unknown[193.32.160.151]: 550 5.1.1 : Recipient address rejected: User unknown in local recipient table; from=<11dzpobp9fiiq@uspdetal.ru> to= proto=ESMTP helo=<[193.32.160.151]>
...
2019-11-14 16:42:46

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