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: Dalian

Region: Liaoning

Country: China

Internet Service Provider: China Unicom

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 <<>> 116.3.212.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 14520
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			335	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020051401 1800 900 604800 86400

;; Query time: 534 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri May 15 07:00:14 CST 2020
;; MSG SIZE  rcvd: 116
Host info
Host 21.212.3.116.in-addr.arpa not found: 2(SERVFAIL)
Nslookup info:
;; Got SERVFAIL reply from 183.60.83.19, trying next server
Server:		183.60.82.98
Address:	183.60.82.98#53

** server can't find 21.212.3.116.in-addr.arpa: SERVFAIL
Related IP info:
Related comments:
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Brute force blocker - service: proftpd1 - aantal: 99 - Wed May  2 09:00:17 2018
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2020-02-25 07:11:54
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Brute force blocker - service: proftpd1 - aantal: 70 - Thu May  3 13:00:17 2018
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Brute force blocker - service: proftpd1, proftpd2 - aantal: 109 - Thu May  3 00:05:17 2018
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Brute force blocker - service: proftpd1, proftpd2 - aantal: 38 - Wed May  2 22:25:17 2018
2020-02-25 07:11:09
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Brute force blocker - service: proftpd1 - aantal: 106 - Fri May  4 04:45:15 2018
2020-02-25 07:09:24
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Unauthorized connection attempt from IP address 125.26.79.51 on Port 445(SMB)
2020-02-25 07:09:44

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