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 <<>> 104.21.81.5
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 37421
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.5.			IN	A

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

;; Query time: 18 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:02:57 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 5.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 5.81.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
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...
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Fail2Ban Ban Triggered
2020-09-02 04:05:12
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2020-09-02 03:33:36
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...
2020-09-02 03:42:40
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repeated ssh attempts
2020-09-02 03:47:55
45.144.65.49 attack
DATE:2020-09-01 20:57:41,IP:45.144.65.49,MATCHES:10,PORT:ssh
2020-09-02 03:44:18
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srv02 Mass scanning activity detected Target: 53(domain) ..
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Automatic report - Banned IP Access
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E-Mail Spam (RBL) [REJECTED]
2020-09-02 04:10:09
60.189.96.204 attackspam
Sep  1 13:27:57 shivevps sshd[28242]: Bad protocol version identification '\024' from 60.189.96.204 port 43136
...
2020-09-02 03:33:55

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