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 <<>> 21.0.138.3
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 40621
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;21.0.138.3.			IN	A

;; AUTHORITY SECTION:
.			57	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022070200 1800 900 604800 86400

;; Query time: 17 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Jul 02 22:10:10 CST 2022
;; MSG SIZE  rcvd: 103
Host info
Host 3.138.0.21.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 3.138.0.21.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
41.141.250.244 attackspam
fraudulent SSH attempt
2019-10-16 08:47:04
138.68.27.253 attack
slow and persistent scanner
2019-10-16 09:17:17
181.127.250.84 attack
Forged login request.
2019-10-16 08:47:27
49.7.43.8 attack
Blocked for port scanning.
Time: Tue Oct 15. 19:44:47 2019 +0200
IP: 49.7.43.8 (CN/China/-)

Sample of block hits:
Oct 15 19:43:42 vserv kernel: [44763591.510049] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=49.7.43.8 DST=[removed] LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=13671 DF PROTO=TCP SPT=30539 DPT=25084 WINDOW=29200 RES=0x00 SYN URGP=0
Oct 15 19:43:43 vserv kernel: [44763592.512217] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=49.7.43.8 DST=[removed] LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=13672 DF PROTO=TCP SPT=30539 DPT=25084 WINDOW=29200 RES=0x00 SYN URGP=0
Oct 15 19:43:45 vserv kernel: [44763594.517298] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=49.7.43.8 DST=[removed] LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=13673 DF PROTO=TCP SPT=30539 DPT=25084 WINDOW=29200 RES=0x00 SYN URGP=0
Oct 15 19:43:49 vserv kernel: [44763598.525602] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=49.7.43.8 DST=[removed] LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=13674 DF PROTO=TCP SPT=30539 DPT=25084 WINDOW=29200
2019-10-16 08:55:30
222.186.180.147 attackbots
Oct 16 02:57:09 herz-der-gamer sshd[19990]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.147  user=root
Oct 16 02:57:11 herz-der-gamer sshd[19990]: Failed password for root from 222.186.180.147 port 36172 ssh2
...
2019-10-16 09:06:18
185.197.74.200 attack
Oct 15 22:01:50 firewall sshd[29597]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.197.74.200
Oct 15 22:01:50 firewall sshd[29597]: Invalid user support from 185.197.74.200
Oct 15 22:01:53 firewall sshd[29597]: Failed password for invalid user support from 185.197.74.200 port 10166 ssh2
...
2019-10-16 09:05:09
189.26.113.98 attackbots
Oct 16 01:10:11 www sshd\[52367\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.26.113.98  user=root
Oct 16 01:10:13 www sshd\[52367\]: Failed password for root from 189.26.113.98 port 48754 ssh2
Oct 16 01:14:45 www sshd\[52463\]: Invalid user 123 from 189.26.113.98
Oct 16 01:14:45 www sshd\[52463\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.26.113.98
...
2019-10-16 08:53:29
195.88.6.108 attackbotsspam
Oct 15 23:55:11 lnxweb62 sshd[27800]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.88.6.108
2019-10-16 09:17:02
110.147.202.42 attackspambots
$f2bV_matches
2019-10-16 08:43:42
36.91.131.175 attackspambots
fraudulent SSH attempt
2019-10-16 09:11:12
180.76.150.29 attack
$f2bV_matches
2019-10-16 09:21:16
165.22.95.167 attackspambots
Oct 14 14:40:09 xm3 sshd[17486]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.22.95.167  user=r.r
Oct 14 14:40:11 xm3 sshd[17486]: Failed password for r.r from 165.22.95.167 port 57018 ssh2
Oct 14 14:40:11 xm3 sshd[17486]: Received disconnect from 165.22.95.167: 11: Bye Bye [preauth]
Oct 14 14:50:35 xm3 sshd[6975]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.22.95.167  user=r.r
Oct 14 14:50:37 xm3 sshd[6975]: Failed password for r.r from 165.22.95.167 port 49644 ssh2
Oct 14 14:50:37 xm3 sshd[6975]: Received disconnect from 165.22.95.167: 11: Bye Bye [preauth]
Oct 14 14:54:49 xm3 sshd[13268]: Failed password for invalid user bd from 165.22.95.167 port 37342 ssh2
Oct 14 14:54:49 xm3 sshd[13268]: Received disconnect from 165.22.95.167: 11: Bye Bye [preauth]
Oct 14 14:58:56 xm3 sshd[22433]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=165........
-------------------------------
2019-10-16 08:45:41
112.216.93.141 attack
Automatic report - Banned IP Access
2019-10-16 08:51:31
144.217.89.55 attackbotsspam
Oct 16 04:04:32 gw1 sshd[22032]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=144.217.89.55
Oct 16 04:04:33 gw1 sshd[22032]: Failed password for invalid user kommedal from 144.217.89.55 port 48634 ssh2
...
2019-10-16 09:16:32
92.118.160.21 attack
Honeypot attack, port: 445, PTR: 92.118.160.21.netsystemsresearch.com.
2019-10-16 09:04:14

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