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
112.85.42.238 attackspam
Brute-force attempt banned
2020-09-16 16:41:48
85.209.0.251 attackbotsspam
Bruteforce detected by fail2ban
2020-09-16 16:38:30
37.187.0.20 attackspam
Invalid user debug from 37.187.0.20 port 55294
2020-09-16 17:14:56
167.172.214.147 attackspam
Sep 16 08:53:31 roki sshd[5162]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.172.214.147  user=root
Sep 16 08:53:33 roki sshd[5162]: Failed password for root from 167.172.214.147 port 46592 ssh2
Sep 16 08:54:41 roki sshd[5242]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.172.214.147  user=root
Sep 16 08:54:43 roki sshd[5242]: Failed password for root from 167.172.214.147 port 33360 ssh2
Sep 16 08:55:24 roki sshd[5288]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.172.214.147  user=root
...
2020-09-16 16:52:52
216.254.186.76 attackspambots
Sep 15 21:40:01 web9 sshd\[4466\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=216.254.186.76  user=root
Sep 15 21:40:03 web9 sshd\[4466\]: Failed password for root from 216.254.186.76 port 36128 ssh2
Sep 15 21:46:38 web9 sshd\[5377\]: Invalid user git from 216.254.186.76
Sep 15 21:46:38 web9 sshd\[5377\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=216.254.186.76
Sep 15 21:46:40 web9 sshd\[5377\]: Failed password for invalid user git from 216.254.186.76 port 59252 ssh2
2020-09-16 17:06:16
81.68.112.71 attackbotsspam
invalid user
2020-09-16 17:06:32
223.244.136.208 attackbotsspam
Sep 15 12:49:51 cumulus sshd[29441]: Invalid user mzv from 223.244.136.208 port 60164
Sep 15 12:49:51 cumulus sshd[29441]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.244.136.208
Sep 15 12:49:54 cumulus sshd[29441]: Failed password for invalid user mzv from 223.244.136.208 port 60164 ssh2
Sep 15 12:49:54 cumulus sshd[29441]: Received disconnect from 223.244.136.208 port 60164:11: Bye Bye [preauth]
Sep 15 12:49:54 cumulus sshd[29441]: Disconnected from 223.244.136.208 port 60164 [preauth]
Sep 15 12:53:28 cumulus sshd[29719]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.244.136.208  user=r.r
Sep 15 12:53:30 cumulus sshd[29719]: Failed password for r.r from 223.244.136.208 port 59322 ssh2
Sep 15 12:53:31 cumulus sshd[29719]: Received disconnect from 223.244.136.208 port 59322:11: Bye Bye [preauth]
Sep 15 12:53:31 cumulus sshd[29719]: Disconnected from 223.244.136.208 port 59322 [........
-------------------------------
2020-09-16 16:47:38
180.253.233.148 attackspambots
Automatic report - Port Scan Attack
2020-09-16 17:13:24
64.225.124.107 attackbotsspam
Sep 16 13:11:29 dhoomketu sshd[3134772]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.225.124.107 
Sep 16 13:11:29 dhoomketu sshd[3134772]: Invalid user onitelecom from 64.225.124.107 port 37686
Sep 16 13:11:31 dhoomketu sshd[3134772]: Failed password for invalid user onitelecom from 64.225.124.107 port 37686 ssh2
Sep 16 13:15:06 dhoomketu sshd[3134815]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.225.124.107  user=root
Sep 16 13:15:08 dhoomketu sshd[3134815]: Failed password for root from 64.225.124.107 port 48452 ssh2
...
2020-09-16 17:11:35
74.82.47.21 attack
 TCP (SYN) 74.82.47.21:48137 -> port 445, len 40
2020-09-16 17:03:41
203.130.242.68 attackspambots
(sshd) Failed SSH login from 203.130.242.68 (ID/Indonesia/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Sep 16 06:23:55 server sshd[16525]: Invalid user admin from 203.130.242.68
Sep 16 06:23:55 server sshd[16525]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.130.242.68 
Sep 16 06:23:57 server sshd[16525]: Failed password for invalid user admin from 203.130.242.68 port 47272 ssh2
Sep 16 06:28:17 server sshd[17376]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.130.242.68  user=root
Sep 16 06:28:19 server sshd[17376]: Failed password for root from 203.130.242.68 port 47277 ssh2
2020-09-16 17:04:08
111.72.194.79 attackbots
Sep 15 20:15:22 srv01 postfix/smtpd\[4021\]: warning: unknown\[111.72.194.79\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 15 20:18:48 srv01 postfix/smtpd\[29803\]: warning: unknown\[111.72.194.79\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 15 20:22:17 srv01 postfix/smtpd\[27070\]: warning: unknown\[111.72.194.79\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 15 20:25:47 srv01 postfix/smtpd\[4125\]: warning: unknown\[111.72.194.79\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 15 20:25:58 srv01 postfix/smtpd\[4125\]: warning: unknown\[111.72.194.79\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2020-09-16 17:17:58
186.155.18.169 attackbots
 TCP (SYN) 186.155.18.169:51613 -> port 8080, len 40
2020-09-16 17:04:46
149.202.160.192 attack
Sep 16 09:39:40 nopemail auth.info sshd[24799]: Disconnected from authenticating user root 149.202.160.192 port 59690 [preauth]
...
2020-09-16 17:11:16
49.235.240.251 attackspam
Sep 16 02:34:07 vps46666688 sshd[30866]: Failed password for root from 49.235.240.251 port 57568 ssh2
...
2020-09-16 17:02:32

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