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 <<>> 104.21.4.66
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 24685
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.4.66.			IN	A

;; AUTHORITY SECTION:
.			530	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021602 1800 900 604800 86400

;; Query time: 18 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 10:12:45 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 66.4.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 66.4.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
218.92.0.199 attackspam
2020-06-30T14:52:25.241424rem.lavrinenko.info sshd[27023]: refused connect from 218.92.0.199 (218.92.0.199)
2020-06-30T14:54:13.432736rem.lavrinenko.info sshd[27025]: refused connect from 218.92.0.199 (218.92.0.199)
2020-06-30T14:55:57.281660rem.lavrinenko.info sshd[27026]: refused connect from 218.92.0.199 (218.92.0.199)
2020-06-30T14:57:46.102041rem.lavrinenko.info sshd[27027]: refused connect from 218.92.0.199 (218.92.0.199)
2020-06-30T14:59:36.703097rem.lavrinenko.info sshd[27028]: refused connect from 218.92.0.199 (218.92.0.199)
...
2020-06-30 21:16:09
101.231.146.34 attackbotsspam
Jun 30 14:15:29 vps687878 sshd\[27721\]: Failed password for invalid user upgrade from 101.231.146.34 port 47337 ssh2
Jun 30 14:19:55 vps687878 sshd\[28118\]: Invalid user tongbinbin from 101.231.146.34 port 51513
Jun 30 14:19:55 vps687878 sshd\[28118\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.231.146.34
Jun 30 14:19:57 vps687878 sshd\[28118\]: Failed password for invalid user tongbinbin from 101.231.146.34 port 51513 ssh2
Jun 30 14:24:28 vps687878 sshd\[28482\]: Invalid user snoopy from 101.231.146.34 port 55717
Jun 30 14:24:28 vps687878 sshd\[28482\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.231.146.34
...
2020-06-30 20:36:49
171.15.17.161 attackbots
2020-06-30T08:33:10.763725devel sshd[12324]: Invalid user steam from 171.15.17.161 port 46402
2020-06-30T08:33:12.826049devel sshd[12324]: Failed password for invalid user steam from 171.15.17.161 port 46402 ssh2
2020-06-30T08:36:34.176330devel sshd[12664]: Invalid user jenkins from 171.15.17.161 port 60366
2020-06-30 20:47:42
190.5.228.74 attackspam
Jun 30 14:21:25 vserver sshd\[20592\]: Invalid user billy from 190.5.228.74Jun 30 14:21:27 vserver sshd\[20592\]: Failed password for invalid user billy from 190.5.228.74 port 54295 ssh2Jun 30 14:25:12 vserver sshd\[20631\]: Invalid user linjk from 190.5.228.74Jun 30 14:25:14 vserver sshd\[20631\]: Failed password for invalid user linjk from 190.5.228.74 port 40673 ssh2
...
2020-06-30 20:34:39
166.111.152.230 attackspambots
Jun 30 22:00:48 web1 sshd[20489]: Invalid user bojan from 166.111.152.230 port 51176
Jun 30 22:00:48 web1 sshd[20489]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=166.111.152.230
Jun 30 22:00:48 web1 sshd[20489]: Invalid user bojan from 166.111.152.230 port 51176
Jun 30 22:00:50 web1 sshd[20489]: Failed password for invalid user bojan from 166.111.152.230 port 51176 ssh2
Jun 30 22:21:24 web1 sshd[25679]: Invalid user iroda from 166.111.152.230 port 44072
Jun 30 22:21:24 web1 sshd[25679]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=166.111.152.230
Jun 30 22:21:24 web1 sshd[25679]: Invalid user iroda from 166.111.152.230 port 44072
Jun 30 22:21:26 web1 sshd[25679]: Failed password for invalid user iroda from 166.111.152.230 port 44072 ssh2
Jun 30 22:24:59 web1 sshd[26524]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=166.111.152.230  user=root
Jun 30 22:25:00
...
2020-06-30 20:40:21
31.206.69.66 attackbotsspam
$f2bV_matches
2020-06-30 20:32:01
46.105.29.59 attackbots
Jun 30 14:24:44 vm0 sshd[9374]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.105.29.59
Jun 30 14:24:46 vm0 sshd[9374]: Failed password for invalid user 123456789 from 46.105.29.59 port 34776 ssh2
...
2020-06-30 21:14:03
46.38.145.247 attackspambots
2020-06-30 02:24:41 dovecot_login authenticator failed for \(User\) \[46.38.145.247\]: 535 Incorrect authentication data \(set_id=nitrogen@no-server.de\)
2020-06-30 02:24:49 dovecot_login authenticator failed for \(User\) \[46.38.145.247\]: 535 Incorrect authentication data \(set_id=wap2@no-server.de\)
2020-06-30 02:24:49 dovecot_login authenticator failed for \(User\) \[46.38.145.247\]: 535 Incorrect authentication data \(set_id=wap2@no-server.de\)
2020-06-30 02:25:06 dovecot_login authenticator failed for \(User\) \[46.38.145.247\]: 535 Incorrect authentication data \(set_id=wap2@no-server.de\)
2020-06-30 02:30:08 dovecot_login authenticator failed for \(User\) \[46.38.145.247\]: 535 Incorrect authentication data
...
2020-06-30 20:33:31
218.92.0.148 attackspam
Jun 30 12:49:40 marvibiene sshd[42963]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.148  user=root
Jun 30 12:49:41 marvibiene sshd[42963]: Failed password for root from 218.92.0.148 port 21355 ssh2
Jun 30 12:49:57 marvibiene sshd[42978]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.148  user=root
Jun 30 12:49:59 marvibiene sshd[42978]: Failed password for root from 218.92.0.148 port 48649 ssh2
...
2020-06-30 20:51:42
27.198.10.136 attackbotsspam
Icarus honeypot on github
2020-06-30 21:14:40
68.183.121.252 attackbotsspam
Jun 29 17:50:43 localhost sshd[281570]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.121.252  user=r.r
Jun 29 17:50:46 localhost sshd[281570]: Failed password for r.r from 68.183.121.252 port 33484 ssh2
Jun 29 17:55:54 localhost sshd[283143]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.121.252  user=r.r
Jun 29 17:55:56 localhost sshd[283143]: Failed password for r.r from 68.183.121.252 port 56344 ssh2
Jun 29 17:58:48 localhost sshd[283426]: Invalid user Minecraft from 68.183.121.252 port 56584
Jun 29 17:58:48 localhost sshd[283426]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.121.252 
Jun 29 17:58:48 localhost sshd[283426]: Invalid user Minecraft from 68.183.121.252 port 56584
Jun 29 17:58:50 localhost sshd[283426]: Failed password for invalid user Minecraft from 68.183.121.252 port 56584 ssh2
Jun 29 18:01:48 localhost ss........
------------------------------
2020-06-30 20:43:31
20.185.32.70 attackspambots
Jun 30 13:36:09 cdc sshd[17206]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=20.185.32.70  user=root
Jun 30 13:36:11 cdc sshd[17206]: Failed password for invalid user root from 20.185.32.70 port 2339 ssh2
2020-06-30 21:04:46
81.215.206.209 attackbotsspam
Automatic report - Port Scan Attack
2020-06-30 20:33:06
185.110.95.13 attack
Failed password for invalid user gwh from 185.110.95.13 port 48120 ssh2
2020-06-30 21:06:59
104.131.231.109 attackspam
*Port Scan* detected from 104.131.231.109 (US/United States/New York/New York/-). 4 hits in the last 211 seconds
2020-06-30 20:52:28

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