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: None

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 <<>> 104.21.16.205
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 8854
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.16.205.			IN	A

;; AUTHORITY SECTION:
.			524	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 67 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 08:31:30 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 205.16.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 205.16.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
189.59.5.81 attack
Unauthorized connection attempt from IP address 189.59.5.81 on port 993
2020-06-01 20:58:16
107.182.189.89 attackbots
Jun  1 02:23:28 web9 sshd\[21371\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.182.189.89  user=root
Jun  1 02:23:30 web9 sshd\[21371\]: Failed password for root from 107.182.189.89 port 43050 ssh2
Jun  1 02:28:13 web9 sshd\[22055\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.182.189.89  user=root
Jun  1 02:28:15 web9 sshd\[22055\]: Failed password for root from 107.182.189.89 port 47162 ssh2
Jun  1 02:33:05 web9 sshd\[22791\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.182.189.89  user=root
2020-06-01 20:49:53
222.186.180.130 attackspam
2020-06-01T12:33:55.395451abusebot-7.cloudsearch.cf sshd[14425]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.130  user=root
2020-06-01T12:33:57.058331abusebot-7.cloudsearch.cf sshd[14425]: Failed password for root from 222.186.180.130 port 44501 ssh2
2020-06-01T12:33:59.231874abusebot-7.cloudsearch.cf sshd[14425]: Failed password for root from 222.186.180.130 port 44501 ssh2
2020-06-01T12:33:55.395451abusebot-7.cloudsearch.cf sshd[14425]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.130  user=root
2020-06-01T12:33:57.058331abusebot-7.cloudsearch.cf sshd[14425]: Failed password for root from 222.186.180.130 port 44501 ssh2
2020-06-01T12:33:59.231874abusebot-7.cloudsearch.cf sshd[14425]: Failed password for root from 222.186.180.130 port 44501 ssh2
2020-06-01T12:33:55.395451abusebot-7.cloudsearch.cf sshd[14425]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 
...
2020-06-01 20:36:55
201.158.20.70 attackspambots
Fail2Ban Ban Triggered
2020-06-01 20:47:08
49.234.23.248 attackbots
Jun  1 06:06:43 server1 sshd\[23552\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.23.248  user=root
Jun  1 06:06:45 server1 sshd\[23552\]: Failed password for root from 49.234.23.248 port 44374 ssh2
Jun  1 06:08:15 server1 sshd\[23964\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.23.248  user=root
Jun  1 06:08:18 server1 sshd\[23964\]: Failed password for root from 49.234.23.248 port 36202 ssh2
Jun  1 06:09:56 server1 sshd\[24461\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.23.248  user=root
...
2020-06-01 20:23:25
101.118.14.82 attackspambots
2019-06-22 17:15:33 1hehjn-0000Fs-T8 SMTP connection from \(\[101.118.14.82\]\) \[101.118.14.82\]:15650 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-06-22 17:15:46 1hehk0-0000G1-Ft SMTP connection from \(\[101.118.14.82\]\) \[101.118.14.82\]:15737 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-06-22 17:15:57 1hehkB-0000GM-RX SMTP connection from \(\[101.118.14.82\]\) \[101.118.14.82\]:15818 I=\[193.107.88.166\]:25 closed by DROP in ACL
...
2020-06-01 20:50:21
217.160.214.48 attackbots
SSH authentication failure x 6 reported by Fail2Ban
...
2020-06-01 21:04:10
115.79.208.117 attack
Jun  1 14:04:55 inter-technics sshd[11713]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.79.208.117  user=root
Jun  1 14:04:58 inter-technics sshd[11713]: Failed password for root from 115.79.208.117 port 40669 ssh2
Jun  1 14:07:19 inter-technics sshd[12036]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.79.208.117  user=root
Jun  1 14:07:21 inter-technics sshd[12036]: Failed password for root from 115.79.208.117 port 44045 ssh2
Jun  1 14:09:46 inter-technics sshd[12235]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.79.208.117  user=root
Jun  1 14:09:47 inter-technics sshd[12235]: Failed password for root from 115.79.208.117 port 47373 ssh2
...
2020-06-01 20:32:47
185.143.74.73 attackbots
Rude login attack (460 tries in 1d)
2020-06-01 20:49:19
101.185.94.224 attack
2020-03-14 01:42:28 H=\(cpe-101-185-94-224.sb05.sa.asp.telstra.net\) \[101.185.94.224\]:35269 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
2020-03-14 01:43:30 H=\(cpe-101-185-94-224.sb05.sa.asp.telstra.net\) \[101.185.94.224\]:35722 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
2020-03-14 01:44:18 H=\(cpe-101-185-94-224.sb05.sa.asp.telstra.net\) \[101.185.94.224\]:36057 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
...
2020-06-01 20:40:25
183.89.237.39 attackbotsspam
Dovecot Invalid User Login Attempt.
2020-06-01 20:24:55
201.166.145.102 attack
2020-06-01T12:39:32.093337shield sshd\[2231\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=201.166.145.102  user=root
2020-06-01T12:39:34.020106shield sshd\[2231\]: Failed password for root from 201.166.145.102 port 58076 ssh2
2020-06-01T12:39:36.800974shield sshd\[2241\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=201.166.145.102  user=root
2020-06-01T12:39:38.613812shield sshd\[2241\]: Failed password for root from 201.166.145.102 port 43722 ssh2
2020-06-01T12:43:16.423591shield sshd\[3109\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=201.166.145.102  user=root
2020-06-01 20:46:47
195.54.160.225 attack
scans 12 times in preceeding hours on the ports (in chronological order) 4485 4499 4476 4469 4467 4477 4458 4455 4475 4472 4494 4453
2020-06-01 20:33:20
185.230.44.10 attackbotsspam
From: "Combat Earplugs"  185.230.44.117 - phishing redirect mospromtec.com
2020-06-01 20:52:46
203.147.80.102 attackspam
Dovecot Invalid User Login Attempt.
2020-06-01 20:24:17

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