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 <<>> 104.21.54.164
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 53126
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.54.164.			IN	A

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

;; Query time: 63 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 19:34:44 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 164.54.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 164.54.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
78.148.107.92 attack
Automatic report - Port Scan Attack
2019-07-14 10:01:11
46.101.88.10 attack
Jul 14 01:51:41 work-partkepr sshd\[15287\]: Invalid user clamav from 46.101.88.10 port 48736
Jul 14 01:51:41 work-partkepr sshd\[15287\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.101.88.10
...
2019-07-14 10:02:25
185.220.101.56 attackspambots
Automatic report - Banned IP Access
2019-07-14 10:34:46
222.212.136.210 attackspambots
Automatic report - SSH Brute-Force Attack
2019-07-14 10:15:27
5.196.7.123 attackspambots
Jul 14 03:44:10 SilenceServices sshd[20093]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.196.7.123
Jul 14 03:44:12 SilenceServices sshd[20093]: Failed password for invalid user nagios from 5.196.7.123 port 39290 ssh2
Jul 14 03:48:46 SilenceServices sshd[22871]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.196.7.123
2019-07-14 10:11:20
167.99.46.145 attackspam
Jul 14 03:57:25 ArkNodeAT sshd\[23097\]: Invalid user fax from 167.99.46.145
Jul 14 03:57:25 ArkNodeAT sshd\[23097\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.99.46.145
Jul 14 03:57:27 ArkNodeAT sshd\[23097\]: Failed password for invalid user fax from 167.99.46.145 port 42250 ssh2
2019-07-14 10:32:50
103.23.100.87 attackbots
Jul 14 03:53:20 s64-1 sshd[7222]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.23.100.87
Jul 14 03:53:21 s64-1 sshd[7222]: Failed password for invalid user noreply from 103.23.100.87 port 57141 ssh2
Jul 14 03:58:39 s64-1 sshd[7251]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.23.100.87
...
2019-07-14 10:09:56
104.236.81.204 attackspambots
Jul 14 04:44:28 dev sshd\[4191\]: Invalid user burrelli from 104.236.81.204 port 53940
Jul 14 04:44:28 dev sshd\[4191\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.236.81.204
Jul 14 04:44:30 dev sshd\[4191\]: Failed password for invalid user burrelli from 104.236.81.204 port 53940 ssh2
2019-07-14 10:46:56
179.228.148.224 attack
445/tcp
[2019-07-13]1pkt
2019-07-14 10:05:53
211.144.122.42 attackbots
Jul 14 04:01:26 dev sshd\[6045\]: Invalid user yayan from 211.144.122.42 port 59474
Jul 14 04:01:26 dev sshd\[6045\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=211.144.122.42
...
2019-07-14 10:04:54
51.38.125.177 attackbots
Mar 10 06:09:26 vtv3 sshd\[30493\]: Invalid user postgres from 51.38.125.177 port 34062
Mar 10 06:09:26 vtv3 sshd\[30493\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.125.177
Mar 10 06:09:28 vtv3 sshd\[30493\]: Failed password for invalid user postgres from 51.38.125.177 port 34062 ssh2
Mar 10 06:15:18 vtv3 sshd\[693\]: Invalid user admin from 51.38.125.177 port 37388
Mar 10 06:15:18 vtv3 sshd\[693\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.125.177
Mar 11 06:49:29 vtv3 sshd\[6830\]: Invalid user centos from 51.38.125.177 port 33034
Mar 11 06:49:29 vtv3 sshd\[6830\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.125.177
Mar 11 06:49:31 vtv3 sshd\[6830\]: Failed password for invalid user centos from 51.38.125.177 port 33034 ssh2
Mar 11 06:55:39 vtv3 sshd\[9706\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost
2019-07-14 10:41:33
80.97.233.151 attackbots
Blocked for port scanning (Port 23 / Telnet brute-force).
Time: Sat Jul 13. 23:43:41 2019 +0200
IP: 80.97.233.151 (RO/Romania/-)

Sample of block hits:
Jul 13 23:42:35 vserv kernel: [36656265.081660] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=80.97.233.151 DST=[removed] LEN=44 TOS=0x00 PREC=0x00 TTL=54 ID=23648 PROTO=TCP SPT=56950 DPT=23 WINDOW=50542 RES=0x00 SYN URGP=0
Jul 13 23:42:44 vserv kernel: [36656274.039096] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=80.97.233.151 DST=[removed] LEN=44 TOS=0x00 PREC=0x00 TTL=54 ID=23648 PROTO=TCP SPT=56950 DPT=23 WINDOW=50542 RES=0x00 SYN URGP=0
Jul 13 23:42:51 vserv kernel: [36656281.828670] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=80.97.233.151 DST=[removed] LEN=44 TOS=0x00 PREC=0x00 TTL=54 ID=23648 PROTO=TCP SPT=56950 DPT=23 WINDOW=50542 RES=0x00 SYN URGP=0
Jul 13 23:42:59 vserv kernel: [36656289.806882] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=80.97.233.151 DST=[removed] LEN=44 TOS=0x00 PREC=0x00 TTL=54 ID=23648 PROTO=TCP SPT
2019-07-14 10:08:11
175.157.42.66 attackspam
14.07.2019 02:40:39 - SMTP Spam without Auth on hMailserver 
Detected by ELinOX-hMail-A2F
2019-07-14 10:02:07
101.66.91.29 attack
8080/tcp
[2019-07-13]1pkt
2019-07-14 10:00:18
101.89.150.214 attackbotsspam
Jul 14 04:16:21 SilenceServices sshd[8456]: Failed password for root from 101.89.150.214 port 47524 ssh2
Jul 14 04:22:59 SilenceServices sshd[12567]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.89.150.214
Jul 14 04:23:01 SilenceServices sshd[12567]: Failed password for invalid user min from 101.89.150.214 port 44465 ssh2
2019-07-14 10:38:06

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