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: Frankfurt am Main

Region: Hesse

Country: Germany

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 <<>> 2.21.99.51
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 16999
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;2.21.99.51.			IN	A

;; AUTHORITY SECTION:
.			161	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022012900 1800 900 604800 86400

;; Query time: 126 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Jan 30 01:21:30 CST 2022
;; MSG SIZE  rcvd: 103
Host info
51.99.21.2.in-addr.arpa domain name pointer a2-21-99-51.deploy.static.akamaitechnologies.com.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
51.99.21.2.in-addr.arpa	name = a2-21-99-51.deploy.static.akamaitechnologies.com.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
141.98.80.32 attack
Apr 22 07:30:19 mail.srvfarm.net postfix/smtpd[3256027]: warning: unknown[141.98.80.32]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 22 07:30:19 mail.srvfarm.net postfix/smtpd[3256027]: lost connection after AUTH from unknown[141.98.80.32]
Apr 22 07:30:24 mail.srvfarm.net postfix/smtpd[3252902]: lost connection after AUTH from unknown[141.98.80.32]
Apr 22 07:30:28 mail.srvfarm.net postfix/smtpd[3256027]: lost connection after AUTH from unknown[141.98.80.32]
Apr 22 07:30:29 mail.srvfarm.net postfix/smtps/smtpd[3256456]: lost connection after AUTH from unknown[141.98.80.32]
2020-04-22 13:55:19
192.144.155.63 attack
Apr 22 07:30:14 cloud sshd[22432]: Failed password for wp from 192.144.155.63 port 35368 ssh2
Apr 22 07:40:17 cloud sshd[22772]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.144.155.63
2020-04-22 14:07:08
69.94.131.25 attack
Apr 22 05:53:25 mail.srvfarm.net postfix/smtpd[3209784]: NOQUEUE: reject: RCPT from unknown[69.94.131.25]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 22 05:53:25 mail.srvfarm.net postfix/smtpd[3209785]: NOQUEUE: reject: RCPT from unknown[69.94.131.25]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 22 05:53:25 mail.srvfarm.net postfix/smtpd[3209787]: NOQUEUE: reject: RCPT from unknown[69.94.131.25]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 22 05:53:26 mail.srvfarm.net postfix/smtpd[3209786]: NOQUEUE: reject: R
2020-04-22 13:57:47
180.76.148.147 attackspam
$f2bV_matches
2020-04-22 13:39:57
212.64.69.247 attackspam
Invalid user en from 212.64.69.247 port 40994
2020-04-22 13:33:51
175.6.248.23 attackbotsspam
FTP login brute force attempts.
Time: Wed Apr 22. 03:07:19 2020 +0200
IP: 175.6.248.23 (CN/China/-)

Log entries:
Apr 22 03:06:28 alpha pure-ftpd: (?@175.6.248.23) [WARNING] Authentication failed for user [www]
Apr 22 03:06:32 alpha pure-ftpd: (?@175.6.248.23) [WARNING] Authentication failed for user [www]
Apr 22 03:06:40 alpha pure-ftpd: (?@175.6.248.23) [WARNING] Authentication failed for user [www]
Apr 22 03:06:44 alpha pure-ftpd: (?@175.6.248.23) [WARNING] Authentication failed for user [www]
Apr 22 03:06:49 alpha pure-ftpd: (?@175.6.248.23) [WARNING] Authentication failed for user [www]
Apr 22 03:06:56 alpha pure-ftpd: (?@175.6.248.23) [WARNING] Authentication failed for user [www]
Apr 22 03:07:01 alpha pure-ftpd: (?@175.6.248.23) [WARNING] Authentication failed for user [www]
Apr 22 03:07:07 alpha pure-ftpd: (?@175.6.248.23) [WARNING] Authentication failed for user [www]
Apr 22 03:07:14 alpha pure-ftpd: (?@175.6.248.23) [WARNING] Authentication failed for user [www]
2020-04-22 13:30:23
182.219.172.224 attackbots
$f2bV_matches
2020-04-22 13:34:32
177.11.156.212 attack
Apr 22 04:59:48 ip-172-31-62-245 sshd\[25868\]: Invalid user postgres from 177.11.156.212\
Apr 22 04:59:50 ip-172-31-62-245 sshd\[25868\]: Failed password for invalid user postgres from 177.11.156.212 port 37244 ssh2\
Apr 22 05:04:45 ip-172-31-62-245 sshd\[25889\]: Invalid user teste from 177.11.156.212\
Apr 22 05:04:47 ip-172-31-62-245 sshd\[25889\]: Failed password for invalid user teste from 177.11.156.212 port 51546 ssh2\
Apr 22 05:09:41 ip-172-31-62-245 sshd\[25992\]: Invalid user in from 177.11.156.212\
2020-04-22 13:31:51
129.211.26.12 attackbotsspam
Invalid user postgres from 129.211.26.12 port 59440
2020-04-22 14:04:07
134.209.169.132 attackspambots
Hacking
2020-04-22 13:44:20
103.25.46.142 attackspambots
Apr 22 03:55:55 www_kotimaassa_fi sshd[31680]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.25.46.142
Apr 22 03:55:57 www_kotimaassa_fi sshd[31680]: Failed password for invalid user service from 103.25.46.142 port 54443 ssh2
...
2020-04-22 13:34:11
221.12.124.190 attackspam
Apr 22 01:59:34 firewall sshd[10794]: Failed password for invalid user postgres from 221.12.124.190 port 44206 ssh2
Apr 22 02:04:13 firewall sshd[10849]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.12.124.190  user=mail
Apr 22 02:04:15 firewall sshd[10849]: Failed password for mail from 221.12.124.190 port 39322 ssh2
...
2020-04-22 13:50:41
2002:b9ea:db51::b9ea:db51 attack
Apr 22 06:53:59 web01.agentur-b-2.de postfix/smtpd[86004]: warning: unknown[2002:b9ea:db51::b9ea:db51]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 22 06:53:59 web01.agentur-b-2.de postfix/smtpd[86004]: lost connection after AUTH from unknown[2002:b9ea:db51::b9ea:db51]
Apr 22 07:00:36 web01.agentur-b-2.de postfix/smtpd[86004]: warning: unknown[2002:b9ea:db51::b9ea:db51]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 22 07:00:36 web01.agentur-b-2.de postfix/smtpd[86004]: lost connection after AUTH from unknown[2002:b9ea:db51::b9ea:db51]
Apr 22 07:02:02 web01.agentur-b-2.de postfix/smtpd[84380]: warning: unknown[2002:b9ea:db51::b9ea:db51]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2020-04-22 13:59:22
185.94.188.130 attack
srv02 Mass scanning activity detected Target: 2082  ..
2020-04-22 13:30:07
218.78.81.255 attackbots
Apr 22 06:08:29 meumeu sshd[25523]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.78.81.255 
Apr 22 06:08:32 meumeu sshd[25523]: Failed password for invalid user test from 218.78.81.255 port 49158 ssh2
Apr 22 06:12:57 meumeu sshd[26224]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.78.81.255 
...
2020-04-22 14:03:06

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