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 <<>> 104.21.57.18
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 8065
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.57.18.			IN	A

;; AUTHORITY SECTION:
.			600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 57 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:38:15 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 18.57.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 18.57.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
73.135.61.137 attackspambots
Invalid user osmc from 73.135.61.137 port 61928
2020-09-11 14:43:14
139.59.18.215 attackbotsspam
Sep 11 03:57:45 cp sshd[8979]: Failed password for root from 139.59.18.215 port 33268 ssh2
Sep 11 04:01:00 cp sshd[11330]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.18.215
Sep 11 04:01:03 cp sshd[11330]: Failed password for invalid user cacti from 139.59.18.215 port 51204 ssh2
2020-09-11 14:21:37
159.203.192.134 attack
Port scan denied
2020-09-11 14:15:49
187.38.198.237 attack
Sep 10 10:18:46 server sshd[139321]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=187.38.198.237  user=root
Sep 10 10:18:48 server sshd[139321]: Failed password for root from 187.38.198.237 port 38908 ssh2
...
2020-09-11 14:18:03
220.134.214.250 attackspam
Telnet Server BruteForce Attack
2020-09-11 14:20:50
202.186.179.146 attackspam
Scanned 3 times in the last 24 hours on port 22
2020-09-11 14:36:49
192.35.168.233 attackspambots
Port scan denied
2020-09-11 14:32:19
107.182.177.38 attackbots
Sep 11 04:35:08 vlre-nyc-1 sshd\[2416\]: Invalid user srv from 107.182.177.38
Sep 11 04:35:08 vlre-nyc-1 sshd\[2416\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.182.177.38
Sep 11 04:35:10 vlre-nyc-1 sshd\[2416\]: Failed password for invalid user srv from 107.182.177.38 port 51768 ssh2
Sep 11 04:41:50 vlre-nyc-1 sshd\[2580\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.182.177.38  user=root
Sep 11 04:41:52 vlre-nyc-1 sshd\[2580\]: Failed password for root from 107.182.177.38 port 37894 ssh2
...
2020-09-11 14:16:47
60.208.106.19 attackspam
Probing for vulnerable services
2020-09-11 14:29:45
46.173.81.251 attack
Lines containing failures of 46.173.81.251
Sep 10 19:23:22 mellenthin sshd[12490]: Invalid user admin from 46.173.81.251 port 33480
Sep 10 19:23:23 mellenthin sshd[12490]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.173.81.251
Sep 10 19:23:25 mellenthin sshd[12490]: Failed password for invalid user admin from 46.173.81.251 port 33480 ssh2
Sep 10 19:23:25 mellenthin sshd[12490]: Connection closed by invalid user admin 46.173.81.251 port 33480 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=46.173.81.251
2020-09-11 14:35:03
192.42.116.23 attackbotsspam
Sep 11 07:07:25 ns308116 sshd[16426]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.42.116.23  user=root
Sep 11 07:07:27 ns308116 sshd[16426]: Failed password for root from 192.42.116.23 port 56504 ssh2
Sep 11 07:07:31 ns308116 sshd[16426]: Failed password for root from 192.42.116.23 port 56504 ssh2
Sep 11 07:07:34 ns308116 sshd[16426]: Failed password for root from 192.42.116.23 port 56504 ssh2
Sep 11 07:07:36 ns308116 sshd[16426]: Failed password for root from 192.42.116.23 port 56504 ssh2
...
2020-09-11 14:26:24
42.159.155.8 attack
Sep 11 13:27:56 web1 sshd[29925]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=42.159.155.8  user=root
Sep 11 13:27:58 web1 sshd[29925]: Failed password for root from 42.159.155.8 port 1600 ssh2
Sep 11 13:33:16 web1 sshd[32117]: Invalid user wangxue from 42.159.155.8 port 1600
Sep 11 13:33:16 web1 sshd[32117]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=42.159.155.8
Sep 11 13:33:16 web1 sshd[32117]: Invalid user wangxue from 42.159.155.8 port 1600
Sep 11 13:33:19 web1 sshd[32117]: Failed password for invalid user wangxue from 42.159.155.8 port 1600 ssh2
Sep 11 13:36:18 web1 sshd[909]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=42.159.155.8  user=root
Sep 11 13:36:20 web1 sshd[909]: Failed password for root from 42.159.155.8 port 1600 ssh2
Sep 11 13:39:26 web1 sshd[2169]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhos
...
2020-09-11 14:31:28
46.101.181.165 attack
Port scan denied
2020-09-11 14:23:40
197.51.33.119 attackspambots
" "
2020-09-11 14:16:20
68.71.20.138 attack
Sep 11 06:05:50 ssh2 sshd[91884]: Invalid user admin from 68.71.20.138 port 56780
Sep 11 06:05:50 ssh2 sshd[91884]: Failed password for invalid user admin from 68.71.20.138 port 56780 ssh2
Sep 11 06:05:50 ssh2 sshd[91884]: Connection closed by invalid user admin 68.71.20.138 port 56780 [preauth]
...
2020-09-11 14:25:38

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