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: Korea (the Republic of)

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 <<>> 121.55.66.207
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 56845
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;121.55.66.207.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025020602 1800 900 604800 86400

;; Query time: 61 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 07 07:23:16 CST 2025
;; MSG SIZE  rcvd: 106
Host info
Host 207.66.55.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 207.66.55.121.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
173.245.217.165 attackspam
[2020-09-09 21:51:49] SECURITY[4624] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2020-09-09T21:51:49.501+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="",SessionID="1071385197-384019749-2060270552",LocalAddress="IPV4/UDP/51.255.2.242/5060",RemoteAddress="IPV4/UDP/173.245.217.165/59412",Challenge="1599681108/c4e56096fbd8a94e846ba836629a0a5f",Response="904d7c471eafdb1ec8e7f91164e90377",ExpectedResponse=""
[2020-09-09 21:51:50] SECURITY[4624] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2020-09-09T21:51:50.039+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="",SessionID="1071385197-384019749-2060270552",LocalAddress="IPV4/UDP/51.255.2.242/5060",RemoteAddress="IPV4/UDP/173.245.217.165/59412",Challenge="1599681109/6901853ca5ee21fd5bea6630e8709321",Response="6ebf6ea6898791d06014bb4dcf51b01b",ExpectedResponse=""
[2020-09-09 21:51:50] SECURITY[4624] res_security_log.c: SecurityEvent="Challe
...
2020-09-10 07:00:04
36.82.192.37 attackspambots
Sep  9 20:57:43 markkoudstaal sshd[11641]: Failed password for root from 36.82.192.37 port 58053 ssh2
Sep  9 21:04:18 markkoudstaal sshd[13554]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.82.192.37
Sep  9 21:04:20 markkoudstaal sshd[13554]: Failed password for invalid user guest1 from 36.82.192.37 port 43869 ssh2
...
2020-09-10 06:52:52
91.134.173.100 attack
2020-09-09T21:41:48.138115abusebot-2.cloudsearch.cf sshd[25150]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.134.173.100  user=root
2020-09-09T21:41:50.213155abusebot-2.cloudsearch.cf sshd[25150]: Failed password for root from 91.134.173.100 port 42682 ssh2
2020-09-09T21:46:23.291719abusebot-2.cloudsearch.cf sshd[25161]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.134.173.100  user=root
2020-09-09T21:46:25.452175abusebot-2.cloudsearch.cf sshd[25161]: Failed password for root from 91.134.173.100 port 48672 ssh2
2020-09-09T21:48:09.658413abusebot-2.cloudsearch.cf sshd[25166]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.134.173.100  user=root
2020-09-09T21:48:11.372093abusebot-2.cloudsearch.cf sshd[25166]: Failed password for root from 91.134.173.100 port 52684 ssh2
2020-09-09T21:50:11.253218abusebot-2.cloudsearch.cf sshd[25168]: pam_unix(sshd:auth):
...
2020-09-10 06:57:01
83.59.43.190 attackbotsspam
Sep  9 20:44:19 buvik sshd[19365]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=83.59.43.190
Sep  9 20:44:21 buvik sshd[19365]: Failed password for invalid user 232323 from 83.59.43.190 port 47992 ssh2
Sep  9 20:49:40 buvik sshd[20127]: Invalid user kulong from 83.59.43.190
...
2020-09-10 07:28:46
139.198.191.86 attackspam
2020-09-09T19:30:53.724453dmca.cloudsearch.cf sshd[14807]: Invalid user appluat from 139.198.191.86 port 36625
2020-09-09T19:30:53.730797dmca.cloudsearch.cf sshd[14807]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.198.191.86
2020-09-09T19:30:53.724453dmca.cloudsearch.cf sshd[14807]: Invalid user appluat from 139.198.191.86 port 36625
2020-09-09T19:30:55.786459dmca.cloudsearch.cf sshd[14807]: Failed password for invalid user appluat from 139.198.191.86 port 36625 ssh2
2020-09-09T19:33:27.123413dmca.cloudsearch.cf sshd[14952]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.198.191.86  user=root
2020-09-09T19:33:28.983870dmca.cloudsearch.cf sshd[14952]: Failed password for root from 139.198.191.86 port 55986 ssh2
2020-09-09T19:36:03.861819dmca.cloudsearch.cf sshd[15070]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.198.191.86  user=root
2020-09-09T19:
...
2020-09-10 06:56:14
218.92.0.200 attackspam
Sep 10 00:37:33 pve1 sshd[4929]: Failed password for root from 218.92.0.200 port 14650 ssh2
Sep 10 00:37:36 pve1 sshd[4929]: Failed password for root from 218.92.0.200 port 14650 ssh2
...
2020-09-10 07:14:00
117.69.189.105 attackspambots
Sep  9 19:51:28 srv01 postfix/smtpd\[15508\]: warning: unknown\[117.69.189.105\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  9 19:54:54 srv01 postfix/smtpd\[18735\]: warning: unknown\[117.69.189.105\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  9 19:58:21 srv01 postfix/smtpd\[18358\]: warning: unknown\[117.69.189.105\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  9 20:01:46 srv01 postfix/smtpd\[23114\]: warning: unknown\[117.69.189.105\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  9 20:05:13 srv01 postfix/smtpd\[15508\]: warning: unknown\[117.69.189.105\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2020-09-10 07:30:08
186.200.160.114 attackspam
1599670291 - 09/09/2020 18:51:31 Host: 186.200.160.114/186.200.160.114 Port: 445 TCP Blocked
2020-09-10 06:55:32
182.18.153.71 attackbots
Sep  9 19:52:31 HOST sshd[25137]: reveeclipse mapping checking getaddrinfo for static-182-18-153-71.ctrls.in [182.18.153.71] failed - POSSIBLE BREAK-IN ATTEMPT!
Sep  9 19:52:33 HOST sshd[25137]: Failed password for invalid user bad from 182.18.153.71 port 56960 ssh2
Sep  9 19:52:33 HOST sshd[25137]: Received disconnect from 182.18.153.71: 11: Normal Shutdown, Thank you for playing [preauth]
Sep  9 19:52:34 HOST sshd[25139]: reveeclipse mapping checking getaddrinfo for static-182-18-153-71.ctrls.in [182.18.153.71] failed - POSSIBLE BREAK-IN ATTEMPT!
Sep  9 19:52:37 HOST sshd[25139]: Failed password for invalid user testdev from 182.18.153.71 port 57624 ssh2
Sep  9 19:52:37 HOST sshd[25139]: Received disconnect from 182.18.153.71: 11: Normal Shutdown, Thank you for playing [preauth]
Sep  9 19:52:38 HOST sshd[25141]: reveeclipse mapping checking getaddrinfo for static-182-18-153-71.ctrls.in [182.18.153.71] failed - POSSIBLE BREAK-IN ATTEMPT!
Sep  9 19:52:38 HOST sshd[25141........
-------------------------------
2020-09-10 06:59:32
104.206.128.14 attackbots
 TCP (SYN) 104.206.128.14:52176 -> port 3306, len 44
2020-09-10 07:13:29
178.74.73.227 attackbots
445
2020-09-10 07:02:13
112.85.42.173 attackspam
Automatic report BANNED IP
2020-09-10 06:51:52
162.144.38.240 attack
[N10.H2.VM2] Port Scanner Detected Blocked by UFW
2020-09-10 07:27:16
62.234.137.128 attack
Sep  9 18:28:35 datenbank sshd[50008]: Failed password for invalid user tanggu26 from 62.234.137.128 port 41584 ssh2
Sep  9 18:50:57 datenbank sshd[50329]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.234.137.128  user=root
Sep  9 18:50:58 datenbank sshd[50329]: Failed password for root from 62.234.137.128 port 50782 ssh2
...
2020-09-10 07:17:03
222.186.42.155 attackspambots
Blocked by jail recidive
2020-09-10 07:28:01

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