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:
IP Type Details Datetime
104.21.75.2 spam
Spammer blacklist in https://www.projecthoneypot.org/ip_104.21.75.2 https://multirbl.valli.org/lookup/104.21.75.2.html
2022-12-29 00:00:44
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.75.42
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 59169
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.75.42.			IN	A

;; AUTHORITY SECTION:
.			567	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 02:54:38 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 42.75.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 42.75.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
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2020-03-11 17:41:34
106.13.189.158 attack
Invalid user centos from 106.13.189.158 port 56378
2020-03-11 17:26:41
164.132.229.22 attack
Mar 11 10:33:03 lock-38 sshd[18272]: Failed password for invalid user root1 from 164.132.229.22 port 58728 ssh2
...
2020-03-11 17:40:04
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2020-03-11 17:18:22
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2020-03-11 17:25:32
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Invalid user rootalias from 103.86.49.102 port 41124
2020-03-11 17:47:31
188.166.216.84 attack
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2020-03-11 17:37:54
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2020-03-11 17:48:29
103.68.42.170 attack
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2020-03-11 17:48:15
49.232.39.21 attack
2020-03-11T09:09:55.524150shield sshd\[23078\]: Invalid user sammy from 49.232.39.21 port 36500
2020-03-11T09:09:55.532822shield sshd\[23078\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.232.39.21
2020-03-11T09:09:57.543811shield sshd\[23078\]: Failed password for invalid user sammy from 49.232.39.21 port 36500 ssh2
2020-03-11T09:13:52.714695shield sshd\[23602\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.232.39.21  user=root
2020-03-11T09:13:54.930918shield sshd\[23602\]: Failed password for root from 49.232.39.21 port 48450 ssh2
2020-03-11 17:31:23
159.89.165.36 attack
Invalid user tongxin from 159.89.165.36 port 55350
2020-03-11 17:16:14
212.64.111.18 attackbots
Invalid user hduser from 212.64.111.18 port 59114
2020-03-11 17:34:31
146.185.181.64 attackspam
Invalid user hadoop from 146.185.181.64 port 57509
2020-03-11 17:16:57
35.240.145.52 attackspambots
$f2bV_matches
2020-03-11 17:51:13

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