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 <<>> 148.21.51.71
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 54746
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;148.21.51.71.			IN	A

;; AUTHORITY SECTION:
.			3600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019091300 1800 900 604800 86400

;; Query time: 2 msec
;; SERVER: 67.207.67.2#53(67.207.67.2)
;; WHEN: Sat Sep 14 00:25:34 CST 2019
;; MSG SIZE  rcvd: 116
Host info
Host 71.51.21.148.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		67.207.67.2
Address:	67.207.67.2#53

** server can't find 71.51.21.148.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
185.220.101.146 attackbotsspam
SSH brutforce
2020-09-07 20:20:39
212.70.149.20 attackbots
Sep  7 14:43:43 galaxy event: galaxy/lswi: smtp: osaka@uni-potsdam.de [212.70.149.20] authentication failure using internet password
Sep  7 14:44:08 galaxy event: galaxy/lswi: smtp: ors@uni-potsdam.de [212.70.149.20] authentication failure using internet password
Sep  7 14:44:33 galaxy event: galaxy/lswi: smtp: optima@uni-potsdam.de [212.70.149.20] authentication failure using internet password
Sep  7 14:44:59 galaxy event: galaxy/lswi: smtp: onlinelearning@uni-potsdam.de [212.70.149.20] authentication failure using internet password
Sep  7 14:45:25 galaxy event: galaxy/lswi: smtp: onedrive@uni-potsdam.de [212.70.149.20] authentication failure using internet password
...
2020-09-07 20:50:54
167.172.38.238 attackspam
 TCP (SYN) 167.172.38.238:55585 -> port 32602, len 44
2020-09-07 20:14:25
213.39.55.13 attackbotsspam
Sep  7 14:28:07 buvik sshd[18452]: Invalid user ec2-user from 213.39.55.13
Sep  7 14:28:07 buvik sshd[18452]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.39.55.13
Sep  7 14:28:09 buvik sshd[18452]: Failed password for invalid user ec2-user from 213.39.55.13 port 47542 ssh2
...
2020-09-07 20:50:30
174.217.0.247 attackspam
Brute forcing email accounts
2020-09-07 20:14:06
192.241.220.88 attack
TCP ports : 3306 / 5431 / 8443
2020-09-07 20:25:36
138.68.100.212 attack
Brute-force attempt banned
2020-09-07 20:26:45
94.25.168.248 attackbots
Unauthorized connection attempt from IP address 94.25.168.248 on Port 445(SMB)
2020-09-07 20:12:37
203.135.20.36 attack
$f2bV_matches
2020-09-07 20:41:00
93.190.203.58 attackbots
Honeypot attack, port: 445, PTR: PTR record not found
2020-09-07 20:18:07
102.42.82.1 attackbots
Port probing on unauthorized port 23
2020-09-07 20:25:08
45.142.120.49 attackbots
2020-09-07 15:46:22 dovecot_login authenticator failed for \(User\) \[45.142.120.49\]: 535 Incorrect authentication data \(set_id=demo03@org.ua\)2020-09-07 15:47:06 dovecot_login authenticator failed for \(User\) \[45.142.120.49\]: 535 Incorrect authentication data \(set_id=dick@org.ua\)2020-09-07 15:47:50 dovecot_login authenticator failed for \(User\) \[45.142.120.49\]: 535 Incorrect authentication data \(set_id=wp_screen_options@org.ua\)
...
2020-09-07 20:48:59
45.248.71.169 attackspam
$f2bV_matches
2020-09-07 20:09:43
123.22.212.99 attack
Sep  7 10:52:00 ns382633 sshd\[19205\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.22.212.99  user=root
Sep  7 10:52:02 ns382633 sshd\[19205\]: Failed password for root from 123.22.212.99 port 64323 ssh2
Sep  7 11:02:07 ns382633 sshd\[21020\]: Invalid user kosmos from 123.22.212.99 port 58254
Sep  7 11:02:07 ns382633 sshd\[21020\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.22.212.99
Sep  7 11:02:10 ns382633 sshd\[21020\]: Failed password for invalid user kosmos from 123.22.212.99 port 58254 ssh2
2020-09-07 20:51:26
45.142.120.89 attackbotsspam
Sep  7 14:34:41 relay postfix/smtpd\[14381\]: warning: unknown\[45.142.120.89\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  7 14:35:13 relay postfix/smtpd\[17695\]: warning: unknown\[45.142.120.89\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  7 14:35:55 relay postfix/smtpd\[12351\]: warning: unknown\[45.142.120.89\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  7 14:36:28 relay postfix/smtpd\[12361\]: warning: unknown\[45.142.120.89\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  7 14:37:09 relay postfix/smtpd\[11090\]: warning: unknown\[45.142.120.89\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2020-09-07 20:45:36

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