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 <<>> 104.18.21.91
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 18672
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.18.21.91.			IN	A

;; AUTHORITY SECTION:
.			428	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022031901 1800 900 604800 86400

;; Query time: 27 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Mar 20 12:00:34 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 91.21.18.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 91.21.18.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
45.55.155.224 attackbotsspam
2019-12-10T04:59:12.677626abusebot-4.cloudsearch.cf sshd\[24289\]: Invalid user 3edc from 45.55.155.224 port 41158
2019-12-10 13:29:43
51.75.246.176 attackspambots
Dec 10 06:28:27 localhost sshd\[32368\]: Invalid user urano from 51.75.246.176
Dec 10 06:28:28 localhost sshd\[32368\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.246.176
Dec 10 06:28:30 localhost sshd\[32368\]: Failed password for invalid user urano from 51.75.246.176 port 44550 ssh2
Dec 10 06:33:49 localhost sshd\[32624\]: Invalid user faltboat from 51.75.246.176
Dec 10 06:33:49 localhost sshd\[32624\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.246.176
...
2019-12-10 13:44:54
51.91.122.140 attackbotsspam
2019-12-10T04:54:14.041662shield sshd\[22262\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=140.ip-51-91-122.eu  user=mail
2019-12-10T04:54:16.543830shield sshd\[22262\]: Failed password for mail from 51.91.122.140 port 43010 ssh2
2019-12-10T04:59:26.284204shield sshd\[23497\]: Invalid user summitt from 51.91.122.140 port 49924
2019-12-10T04:59:26.288725shield sshd\[23497\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=140.ip-51-91-122.eu
2019-12-10T04:59:28.624780shield sshd\[23497\]: Failed password for invalid user summitt from 51.91.122.140 port 49924 ssh2
2019-12-10 13:12:58
45.82.153.140 attack
Dec 10 05:52:19 relay postfix/smtpd\[3457\]: warning: unknown\[45.82.153.140\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Dec 10 05:52:45 relay postfix/smtpd\[11200\]: warning: unknown\[45.82.153.140\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Dec 10 05:56:42 relay postfix/smtpd\[11200\]: warning: unknown\[45.82.153.140\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Dec 10 05:56:55 relay postfix/smtpd\[11192\]: warning: unknown\[45.82.153.140\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Dec 10 06:03:39 relay postfix/smtpd\[14461\]: warning: unknown\[45.82.153.140\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2019-12-10 13:14:12
185.209.0.18 attackbots
firewall-block, port(s): 3398/tcp
2019-12-10 13:41:36
134.175.191.248 attackbotsspam
Dec 10 00:21:14 linuxvps sshd\[4704\]: Invalid user ts3serv from 134.175.191.248
Dec 10 00:21:14 linuxvps sshd\[4704\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.175.191.248
Dec 10 00:21:16 linuxvps sshd\[4704\]: Failed password for invalid user ts3serv from 134.175.191.248 port 41834 ssh2
Dec 10 00:27:54 linuxvps sshd\[9073\]: Invalid user aland from 134.175.191.248
Dec 10 00:27:54 linuxvps sshd\[9073\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.175.191.248
2019-12-10 13:34:01
138.197.13.103 attack
138.197.13.103 - - \[10/Dec/2019:05:59:17 +0100\] "POST /wp-login.php HTTP/1.0" 200 6655 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
138.197.13.103 - - \[10/Dec/2019:05:59:20 +0100\] "POST /wp-login.php HTTP/1.0" 200 6493 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
138.197.13.103 - - \[10/Dec/2019:05:59:23 +0100\] "POST /wp-login.php HTTP/1.0" 200 6492 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
2019-12-10 13:13:29
192.99.166.243 attackbotsspam
Dec  9 19:25:12 hanapaa sshd\[6211\]: Invalid user pcap from 192.99.166.243
Dec  9 19:25:12 hanapaa sshd\[6211\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=243.ip-192-99-166.net
Dec  9 19:25:14 hanapaa sshd\[6211\]: Failed password for invalid user pcap from 192.99.166.243 port 43172 ssh2
Dec  9 19:30:33 hanapaa sshd\[6730\]: Invalid user haklay from 192.99.166.243
Dec  9 19:30:33 hanapaa sshd\[6730\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=243.ip-192-99-166.net
2019-12-10 13:46:36
163.172.251.80 attackspambots
Dec 10 06:04:06 v22018076622670303 sshd\[8306\]: Invalid user rbj from 163.172.251.80 port 39630
Dec 10 06:04:06 v22018076622670303 sshd\[8306\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=163.172.251.80
Dec 10 06:04:08 v22018076622670303 sshd\[8306\]: Failed password for invalid user rbj from 163.172.251.80 port 39630 ssh2
...
2019-12-10 13:22:36
163.172.62.21 attack
MultiHost/MultiPort Probe, Scan, Hack -
2019-12-10 13:16:20
118.24.23.196 attack
Dec 10 05:13:18 wh01 sshd[11704]: Failed password for root from 118.24.23.196 port 36166 ssh2
Dec 10 05:13:18 wh01 sshd[11704]: Received disconnect from 118.24.23.196 port 36166:11: Bye Bye [preauth]
Dec 10 05:13:18 wh01 sshd[11704]: Disconnected from 118.24.23.196 port 36166 [preauth]
Dec 10 05:21:58 wh01 sshd[12354]: Failed password for root from 118.24.23.196 port 60960 ssh2
Dec 10 05:21:58 wh01 sshd[12354]: Received disconnect from 118.24.23.196 port 60960:11: Bye Bye [preauth]
Dec 10 05:21:58 wh01 sshd[12354]: Disconnected from 118.24.23.196 port 60960 [preauth]
Dec 10 05:28:29 wh01 sshd[12890]: Invalid user pimentel from 118.24.23.196 port 38806
Dec 10 05:28:29 wh01 sshd[12890]: Failed password for invalid user pimentel from 118.24.23.196 port 38806 ssh2
Dec 10 05:57:31 wh01 sshd[15498]: Invalid user borosch from 118.24.23.196 port 35070
Dec 10 05:57:31 wh01 sshd[15498]: Failed password for invalid user borosch from 118.24.23.196 port 35070 ssh2
Dec 10 05:57:32 wh01 sshd[15498]:
2019-12-10 13:42:03
103.56.79.2 attackspam
Dec 10 00:13:14 ny01 sshd[21021]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.56.79.2
Dec 10 00:13:16 ny01 sshd[21021]: Failed password for invalid user test from 103.56.79.2 port 53260 ssh2
Dec 10 00:20:25 ny01 sshd[21766]: Failed password for root from 103.56.79.2 port 51044 ssh2
2019-12-10 13:26:50
14.186.144.190 attackbotsspam
SSH Bruteforce attempt
2019-12-10 13:42:57
218.92.0.138 attack
Dec 10 06:25:09 markkoudstaal sshd[21275]: Failed password for root from 218.92.0.138 port 48681 ssh2
Dec 10 06:25:12 markkoudstaal sshd[21275]: Failed password for root from 218.92.0.138 port 48681 ssh2
Dec 10 06:25:15 markkoudstaal sshd[21275]: Failed password for root from 218.92.0.138 port 48681 ssh2
Dec 10 06:25:19 markkoudstaal sshd[21275]: Failed password for root from 218.92.0.138 port 48681 ssh2
2019-12-10 13:27:41
110.35.173.103 attack
Dec  9 19:31:31 hanapaa sshd\[6831\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.35.173.103  user=root
Dec  9 19:31:33 hanapaa sshd\[6831\]: Failed password for root from 110.35.173.103 port 44212 ssh2
Dec  9 19:38:27 hanapaa sshd\[7538\]: Invalid user francis from 110.35.173.103
Dec  9 19:38:27 hanapaa sshd\[7538\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.35.173.103
Dec  9 19:38:29 hanapaa sshd\[7538\]: Failed password for invalid user francis from 110.35.173.103 port 49808 ssh2
2019-12-10 13:39:01

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