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 <<>> 104.21.57.221
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 28950
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.57.221.			IN	A

;; AUTHORITY SECTION:
.			599	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 61 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:38:23 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 221.57.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 221.57.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
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2020-01-07 16:23:42
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2020-01-07 16:27:52
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Unauthorized connection attempt detected from IP address 175.197.233.197 to port 2220 [J]
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Unauthorized connection attempt detected from IP address 194.116.34.84 to port 23 [J]
2020-01-07 16:23:25
211.34.44.61 attackspam
Unauthorized connection attempt detected from IP address 211.34.44.61 to port 2220 [J]
2020-01-07 16:48:06
122.51.240.241 attackspambots
ssh brute force
2020-01-07 16:32:57
177.54.110.35 attackbotsspam
Unauthorized connection attempt detected from IP address 177.54.110.35 to port 1433 [J]
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SSH Brute Force, server-1 sshd[15504]: Failed password for root from 222.186.42.7 port 36613 ssh2
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Unauthorized connection attempt detected from IP address 179.111.218.225 to port 23 [J]
2020-01-07 16:26:25

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