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 <<>> 104.21.21.18
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 34087
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.21.18.			IN	A

;; AUTHORITY SECTION:
.			156	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022000 1800 900 604800 86400

;; Query time: 19 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 19:30:15 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 18.21.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 18.21.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
178.234.37.197 attackbotsspam
Jun 28 23:40:03 rancher-0 sshd[16994]: Invalid user pi from 178.234.37.197 port 51746
...
2020-06-29 05:46:05
61.155.233.234 attackbotsspam
Bruteforce detected by fail2ban
2020-06-29 05:46:37
103.114.105.238 attackbots
Jun 13 05:26:37 mail postfix/postscreen[18464]: DNSBL rank 3 for [103.114.105.238]:61576
...
2020-06-29 05:25:29
68.183.177.189 attackspam
Jun 28 22:33:30 h1745522 sshd[17155]: Invalid user barbara from 68.183.177.189 port 59142
Jun 28 22:33:30 h1745522 sshd[17155]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.177.189
Jun 28 22:33:30 h1745522 sshd[17155]: Invalid user barbara from 68.183.177.189 port 59142
Jun 28 22:33:32 h1745522 sshd[17155]: Failed password for invalid user barbara from 68.183.177.189 port 59142 ssh2
Jun 28 22:35:56 h1745522 sshd[17204]: Invalid user admin from 68.183.177.189 port 40236
Jun 28 22:35:56 h1745522 sshd[17204]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.177.189
Jun 28 22:35:56 h1745522 sshd[17204]: Invalid user admin from 68.183.177.189 port 40236
Jun 28 22:35:58 h1745522 sshd[17204]: Failed password for invalid user admin from 68.183.177.189 port 40236 ssh2
Jun 28 22:38:18 h1745522 sshd[17290]: Invalid user alice from 68.183.177.189 port 49564
...
2020-06-29 05:39:12
52.224.162.27 attackspam
Jun 28 21:38:25 cdc sshd[23191]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=52.224.162.27  user=root
Jun 28 21:38:27 cdc sshd[23191]: Failed password for invalid user root from 52.224.162.27 port 24366 ssh2
2020-06-29 05:27:15
122.51.109.222 attack
Jun 28 14:46:17 dignus sshd[3349]: Failed password for invalid user eng from 122.51.109.222 port 40078 ssh2
Jun 28 14:48:38 dignus sshd[3581]: Invalid user admin from 122.51.109.222 port 40274
Jun 28 14:48:38 dignus sshd[3581]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.51.109.222
Jun 28 14:48:40 dignus sshd[3581]: Failed password for invalid user admin from 122.51.109.222 port 40274 ssh2
Jun 28 14:51:08 dignus sshd[3834]: Invalid user vicent from 122.51.109.222 port 40480
...
2020-06-29 05:52:40
125.19.153.156 attackspam
SSH Invalid Login
2020-06-29 05:52:23
68.183.66.107 attackbots
(sshd) Failed SSH login from 68.183.66.107 (DE/Germany/211579.cloudwaysapps.com): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Jun 28 22:19:25 grace sshd[8705]: Invalid user sites from 68.183.66.107 port 60810
Jun 28 22:19:27 grace sshd[8705]: Failed password for invalid user sites from 68.183.66.107 port 60810 ssh2
Jun 28 22:34:56 grace sshd[10809]: Invalid user xuh from 68.183.66.107 port 38239
Jun 28 22:34:58 grace sshd[10809]: Failed password for invalid user xuh from 68.183.66.107 port 38239 ssh2
Jun 28 22:37:59 grace sshd[11395]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.66.107  user=root
2020-06-29 05:51:29
141.98.81.42 attack
Jun 28 20:42:19 *** sshd[23549]: User root from 141.98.81.42 not allowed because not listed in AllowUsers
2020-06-29 05:30:03
192.241.221.74 attackbots
20/6/28@16:38:23: FAIL: Alarm-Network address from=192.241.221.74
...
2020-06-29 05:31:42
222.186.169.194 attackspambots
Jun 28 23:36:45 pve1 sshd[26341]: Failed password for root from 222.186.169.194 port 64130 ssh2
Jun 28 23:36:49 pve1 sshd[26341]: Failed password for root from 222.186.169.194 port 64130 ssh2
...
2020-06-29 05:42:21
218.92.0.220 attack
(sshd) Failed SSH login from 218.92.0.220 (CN/China/-): 5 in the last 3600 secs
2020-06-29 05:54:29
111.231.215.55 attack
Jun 28 23:38:12 sso sshd[26561]: Failed password for root from 111.231.215.55 port 55480 ssh2
...
2020-06-29 05:50:33
104.155.215.32 attack
Jun 28 22:32:02 meumeu sshd[48013]: Invalid user quadir from 104.155.215.32 port 41804
Jun 28 22:32:02 meumeu sshd[48013]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.155.215.32 
Jun 28 22:32:02 meumeu sshd[48013]: Invalid user quadir from 104.155.215.32 port 41804
Jun 28 22:32:04 meumeu sshd[48013]: Failed password for invalid user quadir from 104.155.215.32 port 41804 ssh2
Jun 28 22:35:19 meumeu sshd[48115]: Invalid user vikas from 104.155.215.32 port 40246
Jun 28 22:35:19 meumeu sshd[48115]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.155.215.32 
Jun 28 22:35:19 meumeu sshd[48115]: Invalid user vikas from 104.155.215.32 port 40246
Jun 28 22:35:21 meumeu sshd[48115]: Failed password for invalid user vikas from 104.155.215.32 port 40246 ssh2
Jun 28 22:38:26 meumeu sshd[48219]: Invalid user ftpadmin from 104.155.215.32 port 38684
...
2020-06-29 05:26:26
222.186.15.158 attackspam
Jun 28 23:47:18 *host* sshd\[24585\]: User *user* from 222.186.15.158 not allowed because none of user's groups are listed in AllowGroups
2020-06-29 05:57:58

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