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 <<>> 104.21.19.20
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 25178
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.19.20.			IN	A

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

;; Query time: 65 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 18:32:42 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 20.19.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 20.19.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
134.209.27.242 attack
2019-05-07 01:37:09 1hNnAT-0001rE-KG SMTP connection from grade.behinmahd.com \(clever.nikorohlcke.icu\) \[134.209.27.242\]:34032 I=\[193.107.90.29\]:25 closed by DROP in ACL
2019-05-07 01:40:27 1hNnDf-0001yS-4o SMTP connection from grade.behinmahd.com \(plain.nikorohlcke.icu\) \[134.209.27.242\]:34926 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-05-07 01:40:45 1hNnDx-0001yl-RD SMTP connection from grade.behinmahd.com \(awoke.nikorohlcke.icu\) \[134.209.27.242\]:40999 I=\[193.107.88.166\]:25 closed by DROP in ACL
...
2020-02-05 03:16:24
220.255.105.75 attack
Feb  4 14:48:31 grey postfix/smtpd\[23104\]: NOQUEUE: reject: RCPT from bb220-255-105-75.singnet.com.sg\[220.255.105.75\]: 554 5.7.1 Service unavailable\; Client host \[220.255.105.75\] blocked using dul.dnsbl.sorbs.net\; Dynamic IP Addresses See: http://www.sorbs.net/lookup.shtml\?220.255.105.75\; from=\ to=\ proto=ESMTP helo=\
...
2020-02-05 03:31:05
62.234.74.29 attackbotsspam
Unauthorized connection attempt detected from IP address 62.234.74.29 to port 2220 [J]
2020-02-05 03:27:20
117.92.164.165 attackspambots
Feb  4 14:48:17 grey postfix/smtpd\[23104\]: NOQUEUE: reject: RCPT from unknown\[117.92.164.165\]: 554 5.7.1 Service unavailable\; Client host \[117.92.164.165\] blocked using truncate.gbudb.net\; http://www.gbudb.com/truncate/ \[117.92.164.165\]\; from=\ to=\ proto=ESMTP helo=\
...
2020-02-05 03:37:07
137.59.0.6 attack
Unauthorized connection attempt detected from IP address 137.59.0.6 to port 2220 [J]
2020-02-05 03:42:45
92.11.250.129 attack
Telnet/23 MH Probe, BF, Hack -
2020-02-05 03:15:56
102.37.12.59 attack
2020-02-04T12:12:16.115469-07:00 suse-nuc sshd[26059]: Invalid user bsd02 from 102.37.12.59 port 1088
...
2020-02-05 03:16:39
66.70.130.152 attackbots
Feb  4 20:04:23 roki sshd[31049]: Invalid user mujr from 66.70.130.152
Feb  4 20:04:23 roki sshd[31049]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=66.70.130.152
Feb  4 20:04:25 roki sshd[31049]: Failed password for invalid user mujr from 66.70.130.152 port 50590 ssh2
Feb  4 20:27:20 roki sshd[32697]: Invalid user cms from 66.70.130.152
Feb  4 20:27:20 roki sshd[32697]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=66.70.130.152
...
2020-02-05 03:41:06
46.176.134.167 attackspambots
Unauthorized connection attempt detected from IP address 46.176.134.167 to port 23 [J]
2020-02-05 03:22:13
49.163.177.22 attackbots
Feb  4 14:48:23 grey postfix/smtpd\[26473\]: NOQUEUE: reject: RCPT from unknown\[49.163.177.22\]: 554 5.7.1 Service unavailable\; Client host \[49.163.177.22\] blocked using cbl.abuseat.org\; Blocked - see http://www.abuseat.org/lookup.cgi\?ip=49.163.177.22\; from=\ to=\ proto=ESMTP helo=\<\[49.163.177.22\]\>
...
2020-02-05 03:34:09
109.169.41.86 attack
Unauthorized connection attempt detected from IP address 109.169.41.86 to port 2220 [J]
2020-02-05 03:18:16
190.13.178.65 attack
Unauthorized connection attempt detected from IP address 190.13.178.65 to port 1433 [J]
2020-02-05 03:23:00
134.209.19.184 attackspambots
2019-05-08 08:21:10 H=thought.bridgecoaa.com \(needless.frsteverice.icu\) \[134.209.19.184\]:53531 I=\[193.107.88.166\]:25 sender verify fail for \: Unrouteable address
2019-05-08 08:21:10 H=thought.bridgecoaa.com \(needless.frsteverice.icu\) \[134.209.19.184\]:53531 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
2019-05-08 08:23:20 H=thought.bridgecoaa.com \(wash.frsteverice.icu\) \[134.209.19.184\]:35751 I=\[193.107.90.29\]:25 sender verify fail for \: Unrouteable address
2019-05-08 08:23:20 H=thought.bridgecoaa.com \(wash.frsteverice.icu\) \[134.209.19.184\]:35751 I=\[193.107.90.29\]:25 F=\ rejected RCPT \: Sender verify failed
...
2020-02-05 03:29:51
42.113.4.172 attackbotsspam
Unauthorized connection attempt detected from IP address 42.113.4.172 to port 80 [J]
2020-02-05 03:28:07
134.209.26.76 attack
2019-05-08 12:59:08 1hOKHz-0008QC-Vg SMTP connection from sisters.boroujerdico.com \(chin.xevoulono.icu\) \[134.209.26.76\]:46304 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-05-08 12:59:09 1hOKI1-0008QH-P9 SMTP connection from sisters.boroujerdico.com \(out.xevoulono.icu\) \[134.209.26.76\]:39804 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-05-08 12:59:10 1hOKI1-0008QI-PD SMTP connection from sisters.boroujerdico.com \(polygraph.xevoulono.icu\) \[134.209.26.76\]:35343 I=\[193.107.88.166\]:25 closed by DROP in ACL
...
2020-02-05 03:24:47

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