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 <<>> 104.21.21.138
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 52999
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.21.138.			IN	A

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

;; Query time: 55 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 18:53:27 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 138.21.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 138.21.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
113.2.196.193 attack
port scan and connect, tcp 23 (telnet)
2019-06-29 15:44:35
106.12.36.42 attackbots
Jun 29 02:06:06 server sshd[4381]: Failed password for invalid user shen from 106.12.36.42 port 58736 ssh2
Jun 29 02:08:13 server sshd[4836]: Failed password for invalid user muhammad from 106.12.36.42 port 50090 ssh2
Jun 29 02:10:01 server sshd[5352]: Failed password for invalid user mysql-test from 106.12.36.42 port 38870 ssh2
2019-06-29 15:20:14
117.198.219.5 attackspambots
2019-06-29T14:46:22.556391enmeeting.mahidol.ac.th sshd\[20599\]: Invalid user www from 117.198.219.5 port 41682
2019-06-29T14:46:22.571327enmeeting.mahidol.ac.th sshd\[20599\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=117.198.219.5
2019-06-29T14:46:24.629166enmeeting.mahidol.ac.th sshd\[20599\]: Failed password for invalid user www from 117.198.219.5 port 41682 ssh2
...
2019-06-29 15:48:04
206.189.130.251 attack
Jun 29 01:04:42 localhost sshd\[20425\]: Invalid user beltrami from 206.189.130.251
Jun 29 01:04:42 localhost sshd\[20425\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=206.189.130.251
Jun 29 01:04:45 localhost sshd\[20425\]: Failed password for invalid user beltrami from 206.189.130.251 port 46928 ssh2
Jun 29 01:07:00 localhost sshd\[20609\]: Invalid user admin from 206.189.130.251
Jun 29 01:07:00 localhost sshd\[20609\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=206.189.130.251
...
2019-06-29 15:55:19
186.37.115.25 attackspam
SSH Brute Force, server-1 sshd[6679]: Failed password for invalid user hekz from 186.37.115.25 port 55814 ssh2
2019-06-29 15:46:28
107.200.127.153 attackspambots
2019-06-29T03:00:54.889970abusebot-4.cloudsearch.cf sshd\[20301\]: Invalid user pi from 107.200.127.153 port 53428
2019-06-29 15:24:02
116.99.41.229 attackspambots
Jun 29 00:45:59 master sshd[22261]: Failed password for invalid user admin from 116.99.41.229 port 37435 ssh2
2019-06-29 15:26:49
113.58.50.196 attackbots
Jun 29 01:39:16 master sshd[22324]: Failed password for invalid user admin from 113.58.50.196 port 55166 ssh2
2019-06-29 15:37:35
89.40.115.49 attackspambots
Lines containing failures of 89.40.115.49
Jun 28 08:45:13 hvs postfix/smtpd[3935]: warning: hostname host49-115-40-89.static.arubacloud.fr does not resolve to address 89.40.115.49
Jun 28 08:45:13 hvs postfix/smtpd[3935]: connect from unknown[89.40.115.49]
Jun x@x
Jun 28 08:45:14 hvs postfix/smtpd[3935]: disconnect from unknown[89.40.115.49] ehlo=1 mail=1 rcpt=0/1 data=0/1 eclipset=1 quhostname=1 commands=4/6
Jun 28 09:10:29 hvs postfix/smtpd[4103]: warning: hostname host49-115-40-89.static.arubacloud.fr does not resolve to address 89.40.115.49
Jun 28 09:10:29 hvs postfix/smtpd[4103]: connect from unknown[89.40.115.49]
Jun x@x
Jun 28 09:10:30 hvs postfix/smtpd[4103]: disconnect from unknown[89.40.115.49] ehlo=1 mail=1 rcpt=0/1 data=0/1 eclipset=1 quhostname=1 commands=4/6
Jun 28 09:52:53 hvs postfix/smtpd[4389]: warning: hostname host49-115-40-89.static.arubacloud.fr does not resolve to address 89.40.115.49
Jun 28 09:52:53 hvs postfix/smtpd[4389]: connect from unknown[89.........
------------------------------
2019-06-29 15:29:21
116.118.122.108 attackbotsspam
Jun 29 00:18:52 master sshd[22209]: Failed password for invalid user admin from 116.118.122.108 port 42802 ssh2
2019-06-29 15:17:45
78.46.90.53 attackbots
20 attempts against mh-misbehave-ban on pine.magehost.pro
2019-06-29 15:30:31
159.203.111.100 attack
Jun 29 03:00:39 MK-Soft-VM5 sshd\[19583\]: Invalid user animaux from 159.203.111.100 port 50136
Jun 29 03:00:39 MK-Soft-VM5 sshd\[19583\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.111.100
Jun 29 03:00:42 MK-Soft-VM5 sshd\[19583\]: Failed password for invalid user animaux from 159.203.111.100 port 50136 ssh2
...
2019-06-29 15:11:15
220.130.196.86 attackbots
LinkSys E-series Routers Remote Code Execution Vulnerability, PTR: 220-130-196-86.HINET-IP.hinet.net.
2019-06-29 15:16:18
181.111.181.50 attackbots
Jun 29 06:11:55 vps65 sshd\[30445\]: Invalid user mongodb from 181.111.181.50 port 56624
Jun 29 06:11:55 vps65 sshd\[30445\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.111.181.50
...
2019-06-29 15:38:31
159.65.185.225 attackbots
Jun 29 02:12:00 XXXXXX sshd[33918]: Invalid user tftpd from 159.65.185.225 port 56692
2019-06-29 15:32:49

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