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 <<>> 104.21.54.121
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 65273
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.54.121.			IN	A

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

;; Query time: 62 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:36:35 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 121.54.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 121.54.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
51.89.151.214 attack
2019-10-12T23:00:21.404558shield sshd\[27115\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=214.ip-51-89-151.eu  user=root
2019-10-12T23:00:24.167121shield sshd\[27115\]: Failed password for root from 51.89.151.214 port 35882 ssh2
2019-10-12T23:03:57.290434shield sshd\[28208\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=214.ip-51-89-151.eu  user=root
2019-10-12T23:03:59.370731shield sshd\[28208\]: Failed password for root from 51.89.151.214 port 46410 ssh2
2019-10-12T23:07:43.385769shield sshd\[29020\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=214.ip-51-89-151.eu  user=root
2019-10-13 07:16:20
197.59.185.189 attackbots
DATE:2019-10-13 00:29:35, IP:197.59.185.189, PORT:telnet Telnet brute force auth on honeypot server (honey-neo-dc)
2019-10-13 06:55:12
191.208.83.181 attackbotsspam
Oct 13 01:14:54 master sshd[18366]: Failed password for invalid user admin from 191.208.83.181 port 40723 ssh2
2019-10-13 07:00:38
115.146.121.236 attackspam
Oct 12 22:43:51 web8 sshd\[18431\]: Invalid user Paris@1234 from 115.146.121.236
Oct 12 22:43:51 web8 sshd\[18431\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.146.121.236
Oct 12 22:43:53 web8 sshd\[18431\]: Failed password for invalid user Paris@1234 from 115.146.121.236 port 52714 ssh2
Oct 12 22:48:51 web8 sshd\[20821\]: Invalid user Tam@2017 from 115.146.121.236
Oct 12 22:48:51 web8 sshd\[20821\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.146.121.236
2019-10-13 06:57:31
134.209.16.36 attackbotsspam
Oct 13 02:04:55 sauna sshd[144453]: Failed password for root from 134.209.16.36 port 42206 ssh2
...
2019-10-13 07:11:32
138.197.93.133 attackspambots
2019-10-12T22:54:14.182233shield sshd\[24978\]: Invalid user 123France from 138.197.93.133 port 33076
2019-10-12T22:54:14.186402shield sshd\[24978\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.93.133
2019-10-12T22:54:16.896639shield sshd\[24978\]: Failed password for invalid user 123France from 138.197.93.133 port 33076 ssh2
2019-10-12T22:57:52.272675shield sshd\[26338\]: Invalid user Fastfood@2017 from 138.197.93.133 port 44304
2019-10-12T22:57:52.278199shield sshd\[26338\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.93.133
2019-10-13 07:11:05
52.164.205.238 attack
Brute force SMTP login attempted.
...
2019-10-13 07:13:24
186.5.109.211 attackspambots
Oct 13 00:29:24 ArkNodeAT sshd\[22029\]: Invalid user P@ss@2020 from 186.5.109.211
Oct 13 00:29:24 ArkNodeAT sshd\[22029\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.5.109.211
Oct 13 00:29:25 ArkNodeAT sshd\[22029\]: Failed password for invalid user P@ss@2020 from 186.5.109.211 port 54426 ssh2
2019-10-13 07:06:14
138.68.12.43 attack
Oct 12 13:15:12 tdfoods sshd\[9094\]: Invalid user Android from 138.68.12.43
Oct 12 13:15:12 tdfoods sshd\[9094\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.68.12.43
Oct 12 13:15:13 tdfoods sshd\[9094\]: Failed password for invalid user Android from 138.68.12.43 port 39374 ssh2
Oct 12 13:20:11 tdfoods sshd\[9512\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.68.12.43  user=root
Oct 12 13:20:13 tdfoods sshd\[9512\]: Failed password for root from 138.68.12.43 port 50122 ssh2
2019-10-13 07:29:02
51.38.37.128 attackbots
Oct 12 23:02:18 web8 sshd\[27379\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.37.128  user=root
Oct 12 23:02:20 web8 sshd\[27379\]: Failed password for root from 51.38.37.128 port 36120 ssh2
Oct 12 23:05:43 web8 sshd\[29040\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.37.128  user=root
Oct 12 23:05:45 web8 sshd\[29040\]: Failed password for root from 51.38.37.128 port 55873 ssh2
Oct 12 23:09:04 web8 sshd\[30769\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.37.128  user=root
2019-10-13 07:14:02
158.69.25.36 attackbots
Oct 13 00:39:31 ns381471 sshd[12659]: Failed password for root from 158.69.25.36 port 44162 ssh2
Oct 13 00:43:19 ns381471 sshd[12804]: Failed password for root from 158.69.25.36 port 55946 ssh2
2019-10-13 07:27:13
173.245.239.21 attackbotsspam
www.lust-auf-land.com 173.245.239.21 \[13/Oct/2019:00:29:25 +0200\] "POST /wp-login.php HTTP/1.1" 200 7764 "http://www.lust-auf-land.com/wp-login.php" "Mozilla/5.0 \(Windows NT 6.1\; rv:60.0\) Gecko/20100101 Firefox/60.0"
www.lust-auf-land.com 173.245.239.21 \[13/Oct/2019:00:29:27 +0200\] "POST /wp-login.php HTTP/1.1" 200 5100 "http://www.lust-auf-land.com/wp-login.php" "Mozilla/5.0 \(Windows NT 6.1\; rv:60.0\) Gecko/20100101 Firefox/60.0"
2019-10-13 07:03:28
182.18.139.201 attackspambots
Oct 12 13:01:01 kapalua sshd\[29202\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.18.139.201  user=root
Oct 12 13:01:03 kapalua sshd\[29202\]: Failed password for root from 182.18.139.201 port 33138 ssh2
Oct 12 13:05:12 kapalua sshd\[29627\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.18.139.201  user=root
Oct 12 13:05:14 kapalua sshd\[29627\]: Failed password for root from 182.18.139.201 port 40844 ssh2
Oct 12 13:09:22 kapalua sshd\[30230\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.18.139.201  user=root
2019-10-13 07:23:32
195.154.113.173 attackbotsspam
$f2bV_matches
2019-10-13 07:21:37
185.53.88.35 attack
\[2019-10-12 19:15:58\] SECURITY\[1898\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-12T19:15:58.605-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="9442922550332",SessionID="0x7fc3ad578188",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.53.88.35/60674",ACLName="no_extension_match"
\[2019-10-12 19:16:45\] SECURITY\[1898\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-12T19:16:45.170-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="011442922550332",SessionID="0x7fc3ad52dd08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.53.88.35/59864",ACLName="no_extension_match"
\[2019-10-12 19:17:29\] SECURITY\[1898\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-12T19:17:29.182-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="9011442922550332",SessionID="0x7fc3ace4f448",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.53.88.35/61878",ACLName="no_extensi
2019-10-13 07:22:56

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