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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.42.20
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4693
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.42.20.			IN	A

;; AUTHORITY SECTION:
.			545	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021700 1800 900 604800 86400

;; Query time: 60 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 22:11:37 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 20.42.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 20.42.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
88.249.107.206 attackspam
Unauthorized connection attempt detected from IP address 88.249.107.206 to port 80
2020-05-13 04:46:05
198.20.103.242 attackspam
Unauthorized connection attempt detected from IP address 198.20.103.242 to port 5001
2020-05-13 05:09:14
181.113.32.170 attackbots
Unauthorized connection attempt detected from IP address 181.113.32.170 to port 8080
2020-05-13 05:14:02
197.50.71.2 attack
Unauthorized connection attempt detected from IP address 197.50.71.2 to port 23
2020-05-13 05:09:40
103.124.92.184 attackspam
May 12 22:22:24 MainVPS sshd[18740]: Invalid user amit from 103.124.92.184 port 59346
May 12 22:22:24 MainVPS sshd[18740]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.124.92.184
May 12 22:22:24 MainVPS sshd[18740]: Invalid user amit from 103.124.92.184 port 59346
May 12 22:22:26 MainVPS sshd[18740]: Failed password for invalid user amit from 103.124.92.184 port 59346 ssh2
May 12 22:27:07 MainVPS sshd[22706]: Invalid user magazine from 103.124.92.184 port 41790
...
2020-05-13 04:43:06
190.230.31.16 attackbotsspam
Unauthorized connection attempt detected from IP address 190.230.31.16 to port 23
2020-05-13 05:11:04
61.164.79.174 attackbots
Unauthorized connection attempt detected from IP address 61.164.79.174 to port 445
2020-05-13 04:57:28
186.46.38.154 attackbotsspam
Unauthorized connection attempt detected from IP address 186.46.38.154 to port 8080
2020-05-13 05:13:01
46.201.164.152 attackbots
Unauthorized connection attempt detected from IP address 46.201.164.152 to port 23
2020-05-13 04:58:04
82.33.20.68 attack
May 12 22:05:54 ns382633 sshd\[11616\]: Invalid user pi from 82.33.20.68 port 42420
May 12 22:05:54 ns382633 sshd\[11616\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.33.20.68
May 12 22:05:54 ns382633 sshd\[11618\]: Invalid user pi from 82.33.20.68 port 42422
May 12 22:05:54 ns382633 sshd\[11618\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.33.20.68
May 12 22:05:56 ns382633 sshd\[11616\]: Failed password for invalid user pi from 82.33.20.68 port 42420 ssh2
May 12 22:05:56 ns382633 sshd\[11618\]: Failed password for invalid user pi from 82.33.20.68 port 42422 ssh2
2020-05-13 04:50:07
2.177.92.207 attackspambots
Unauthorized connection attempt detected from IP address 2.177.92.207 to port 23
2020-05-13 05:03:12
72.28.217.26 attackspambots
Unauthorized connection attempt detected from IP address 72.28.217.26 to port 9000
2020-05-13 04:54:53
148.170.156.108 attackbotsspam
Blocked for port scanning.
Time: Tue May 12. 12:25:11 2020 +0200
IP: 148.170.156.108 (CA/Canada/host-148-170-156-108.public.eastlink.ca)

Sample of block hits:
May 12 12:24:18 vserv kernel: [12402591.514892] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=148.170.156.108 DST=[removed] LEN=40 TOS=0x00 PREC=0x00 TTL=50 ID=20772 PROTO=TCP SPT=64962 DPT=5555 WINDOW=62666 RES=0x00 SYN URGP=0
May 12 12:24:18 vserv kernel: [12402591.763561] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=148.170.156.108 DST=[removed] LEN=40 TOS=0x00 PREC=0x00 TTL=50 ID=20772 PROTO=TCP SPT=64962 DPT=5555 WINDOW=62666 RES=0x00 SYN URGP=0
May 12 12:24:25 vserv kernel: [12402598.592333] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=148.170.156.108 DST=[removed] LEN=40 TOS=0x00 PREC=0x00 TTL=50 ID=20772 PROTO=TCP SPT=64962 DPT=5555 WINDOW=62666 RES=0x00 SYN URGP=0
May 12 12:24:30 vserv kernel: [12402603.697710] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=148.170.156.108 DST=[removed] LEN=40 TOS=0x00 PREC=0x00 TTL=50 ID
2020-05-13 04:38:02
24.199.35.62 attackbots
Unauthorized connection attempt detected from IP address 24.199.35.62 to port 443
2020-05-13 05:00:07
183.134.4.166 attack
Unauthorized connection attempt detected from IP address 183.134.4.166 to port 445
2020-05-13 05:13:34

Recently Reported IPs

104.21.42.2 172.15.203.39 104.21.42.204 104.21.42.21
95.246.233.124 104.21.42.212 104.21.42.214 159.217.146.101
104.21.42.216 104.21.42.217 104.21.42.218 104.21.42.22
104.21.42.225 104.21.42.226 104.21.42.229 104.21.42.23
104.21.42.231 104.21.42.234 104.21.42.235 104.21.42.236