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 of America (the)

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 <<>> 21.204.138.0
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 32176
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;21.204.138.0.			IN	A

;; AUTHORITY SECTION:
.			29	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025030800 1800 900 604800 86400

;; Query time: 35 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Mar 08 18:00:52 CST 2025
;; MSG SIZE  rcvd: 105
Host info
Host 0.138.204.21.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 0.138.204.21.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
95.78.251.116 attackspambots
Jun 17 06:41:03 buvik sshd[11104]: Failed password for invalid user aip from 95.78.251.116 port 40566 ssh2
Jun 17 06:44:22 buvik sshd[11609]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=95.78.251.116  user=root
Jun 17 06:44:24 buvik sshd[11609]: Failed password for root from 95.78.251.116 port 38782 ssh2
...
2020-06-17 17:10:48
116.255.190.176 attack
Failed password for invalid user test from 116.255.190.176 port 60544 ssh2
2020-06-17 17:00:45
82.29.174.142 attackbotsspam
Attempts against non-existent wp-login
2020-06-17 17:20:31
143.208.145.29 attack
Jun 17 05:50:54 debian-2gb-nbg1-2 kernel: \[14624554.544904\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=143.208.145.29 DST=195.201.40.59 LEN=44 TOS=0x00 PREC=0x00 TTL=49 ID=23834 PROTO=TCP SPT=16331 DPT=46662 WINDOW=7147 RES=0x00 SYN URGP=0
2020-06-17 17:08:37
106.54.139.117 attack
sshd: Failed password for invalid user .... from 106.54.139.117 port 49414 ssh2 (6 attempts)
2020-06-17 17:11:36
203.205.53.105 attackbots
firewall-block, port(s): 445/tcp
2020-06-17 17:34:44
49.88.112.114 attack
Jun 17 09:21:29 django-0 sshd\[3636\]: Failed password for root from 49.88.112.114 port 56582 ssh2Jun 17 09:22:29 django-0 sshd\[3655\]: Failed password for root from 49.88.112.114 port 33234 ssh2Jun 17 09:23:31 django-0 sshd\[3677\]: Failed password for root from 49.88.112.114 port 45997 ssh2
...
2020-06-17 17:27:17
192.35.168.100 attackbots
firewall-block, port(s): 443/tcp
2020-06-17 17:36:15
158.69.110.31 attackbots
$f2bV_matches
2020-06-17 17:04:00
91.121.221.195 attackbotsspam
sshd: Failed password for invalid user .... from 91.121.221.195 port 43680 ssh2 (4 attempts)
2020-06-17 17:07:56
51.38.186.180 attackspam
Jun 17 05:41:25 firewall sshd[19135]: Failed password for invalid user user from 51.38.186.180 port 40611 ssh2
Jun 17 05:44:42 firewall sshd[19259]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.186.180  user=root
Jun 17 05:44:44 firewall sshd[19259]: Failed password for root from 51.38.186.180 port 40093 ssh2
...
2020-06-17 17:26:57
218.92.0.200 attackbotsspam
Jun 17 11:16:43 dcd-gentoo sshd[14833]: User root from 218.92.0.200 not allowed because none of user's groups are listed in AllowGroups
Jun 17 11:16:46 dcd-gentoo sshd[14833]: error: PAM: Authentication failure for illegal user root from 218.92.0.200
Jun 17 11:16:46 dcd-gentoo sshd[14833]: Failed keyboard-interactive/pam for invalid user root from 218.92.0.200 port 11238 ssh2
...
2020-06-17 17:18:09
185.177.40.230 attack
bruteforce detected
2020-06-17 17:01:38
159.89.164.199 attack
2020-06-17T08:54:08.580682server.espacesoutien.com sshd[10349]: Invalid user expert from 159.89.164.199 port 39594
2020-06-17T08:54:08.592570server.espacesoutien.com sshd[10349]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.89.164.199
2020-06-17T08:54:08.580682server.espacesoutien.com sshd[10349]: Invalid user expert from 159.89.164.199 port 39594
2020-06-17T08:54:10.690576server.espacesoutien.com sshd[10349]: Failed password for invalid user expert from 159.89.164.199 port 39594 ssh2
...
2020-06-17 17:04:43
185.153.199.52 attack
3374/tcp 3377/tcp 3371/tcp...
[2020-04-27/06-17]403pkt,133pt.(tcp)
2020-06-17 17:14:02

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