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 <<>> 104.21.4.205
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 40456
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.4.205.			IN	A

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

;; Query time: 24 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 21:47:29 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 205.4.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 205.4.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
201.191.203.154 attackbotsspam
Invalid user lucy from 201.191.203.154 port 41684
2020-04-15 07:01:36
46.101.199.196 attackspambots
15843/tcp 1626/tcp 16207/tcp...
[2020-04-12/14]9pkt,3pt.(tcp)
2020-04-15 07:21:20
222.186.173.154 attackbots
2020-04-14T22:43:06.297542abusebot-8.cloudsearch.cf sshd[28715]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.154  user=root
2020-04-14T22:43:08.113083abusebot-8.cloudsearch.cf sshd[28715]: Failed password for root from 222.186.173.154 port 39182 ssh2
2020-04-14T22:43:11.298587abusebot-8.cloudsearch.cf sshd[28715]: Failed password for root from 222.186.173.154 port 39182 ssh2
2020-04-14T22:43:06.297542abusebot-8.cloudsearch.cf sshd[28715]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.154  user=root
2020-04-14T22:43:08.113083abusebot-8.cloudsearch.cf sshd[28715]: Failed password for root from 222.186.173.154 port 39182 ssh2
2020-04-14T22:43:11.298587abusebot-8.cloudsearch.cf sshd[28715]: Failed password for root from 222.186.173.154 port 39182 ssh2
2020-04-14T22:43:06.297542abusebot-8.cloudsearch.cf sshd[28715]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 
...
2020-04-15 06:45:54
190.128.230.206 attack
Apr 14 22:22:55 sip sshd[15570]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.128.230.206
Apr 14 22:22:56 sip sshd[15570]: Failed password for invalid user t3rr0r from 190.128.230.206 port 45527 ssh2
Apr 14 22:48:12 sip sshd[24869]: Failed password for root from 190.128.230.206 port 51267 ssh2
2020-04-15 07:13:31
187.0.160.130 attackbotsspam
Apr 14 23:27:49 cdc sshd[2457]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=187.0.160.130  user=root
Apr 14 23:27:51 cdc sshd[2457]: Failed password for invalid user root from 187.0.160.130 port 47306 ssh2
2020-04-15 07:20:22
114.237.109.38 attackspambots
Apr 14 23:47:31 elektron postfix/smtpd\[5859\]: NOQUEUE: reject: RCPT from unknown\[114.237.109.38\]: 450 4.7.1 Client host rejected: cannot find your hostname, \[114.237.109.38\]\; from=\ to=\ proto=ESMTP helo=\
Apr 14 23:48:32 elektron postfix/smtpd\[9211\]: NOQUEUE: reject: RCPT from unknown\[114.237.109.38\]: 450 4.7.1 Client host rejected: cannot find your hostname, \[114.237.109.38\]\; from=\ to=\ proto=ESMTP helo=\
Apr 14 23:49:17 elektron postfix/smtpd\[5859\]: NOQUEUE: reject: RCPT from unknown\[114.237.109.38\]: 450 4.7.1 Client host rejected: cannot find your hostname, \[114.237.109.38\]\; from=\ to=\ proto=ESMTP helo=\
Apr 14 23:50:05 elektron postfix/smtpd\[5859\]: NOQUEUE: reject: RCPT from unknown\[114.237.109.38\]: 450 4.7.1 Client host rejected: cannot find your hostname, \[114.237.109.38\]\; from=\ to=\
2020-04-15 06:50:49
134.175.36.212 attackbotsspam
Invalid user zxin10 from 134.175.36.212 port 50590
2020-04-15 07:06:58
68.183.22.85 attackspambots
Too many connections or unauthorized access detected from Arctic banned ip
2020-04-15 07:15:37
154.66.219.20 attackbots
2020-04-14T16:19:32.547264linuxbox-skyline sshd[126358]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=154.66.219.20  user=root
2020-04-14T16:19:34.914506linuxbox-skyline sshd[126358]: Failed password for root from 154.66.219.20 port 35414 ssh2
...
2020-04-15 07:11:11
125.46.11.67 attackbots
" "
2020-04-15 07:25:45
43.226.147.219 attack
(sshd) Failed SSH login from 43.226.147.219 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Apr 14 23:19:35 elude sshd[27302]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=43.226.147.219  user=root
Apr 14 23:19:38 elude sshd[27302]: Failed password for root from 43.226.147.219 port 53390 ssh2
Apr 14 23:29:25 elude sshd[28990]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=43.226.147.219  user=root
Apr 14 23:29:26 elude sshd[28990]: Failed password for root from 43.226.147.219 port 57656 ssh2
Apr 14 23:33:56 elude sshd[29759]: Invalid user ping from 43.226.147.219 port 35064
2020-04-15 06:48:39
167.99.66.158 attack
Apr 14 20:40:28 ip-172-31-62-245 sshd\[20452\]: Invalid user firefart from 167.99.66.158\
Apr 14 20:40:29 ip-172-31-62-245 sshd\[20452\]: Failed password for invalid user firefart from 167.99.66.158 port 56926 ssh2\
Apr 14 20:44:19 ip-172-31-62-245 sshd\[20486\]: Invalid user mcUser from 167.99.66.158\
Apr 14 20:44:21 ip-172-31-62-245 sshd\[20486\]: Failed password for invalid user mcUser from 167.99.66.158 port 36244 ssh2\
Apr 14 20:48:07 ip-172-31-62-245 sshd\[20516\]: Failed password for root from 167.99.66.158 port 43788 ssh2\
2020-04-15 07:16:43
2.249.141.57 attackspambots
port scan and connect, tcp 80 (http)
2020-04-15 06:46:26
46.45.154.244 attackspambots
Apr 14 17:40:49 : SSH login attempts with invalid user
2020-04-15 06:57:30
222.186.52.39 attackbots
04/14/2020-18:41:56.358056 222.186.52.39 Protocol: 6 ET SCAN Potential SSH Scan
2020-04-15 06:49:00

Recently Reported IPs

104.21.4.203 104.21.4.219 104.21.4.221 104.21.4.222
104.21.4.226 104.21.4.232 104.21.4.237 104.21.4.238
153.158.28.199 104.21.4.24 104.21.4.240 104.21.4.247
104.21.4.248 104.21.4.25 104.21.4.29 104.21.4.30
104.21.4.31 104.21.4.33 104.21.4.34 104.21.4.36