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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.16.23
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 25583
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.16.23.			IN	A

;; AUTHORITY SECTION:
.			179	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 65 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 08:31:31 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 23.16.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 23.16.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
46.219.3.139 attackbotsspam
Feb 25 02:43:56 vps647732 sshd[25399]: Failed password for nobody from 46.219.3.139 port 46862 ssh2
...
2020-02-25 12:08:11
218.82.126.86 attack
Honeypot attack, port: 445, PTR: 86.126.82.218.broad.xw.sh.dynamic.163data.com.cn.
2020-02-25 12:10:56
51.158.189.0 attackbots
Invalid user jocelyn from 51.158.189.0 port 45624
2020-02-25 12:12:43
165.227.225.195 attack
Feb 24 18:03:15 web1 sshd\[27383\]: Invalid user kigwasshoi from 165.227.225.195
Feb 24 18:03:15 web1 sshd\[27383\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.227.225.195
Feb 24 18:03:17 web1 sshd\[27383\]: Failed password for invalid user kigwasshoi from 165.227.225.195 port 40938 ssh2
Feb 24 18:09:24 web1 sshd\[28094\]: Invalid user csgoserver from 165.227.225.195
Feb 24 18:09:24 web1 sshd\[28094\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.227.225.195
2020-02-25 12:15:57
134.159.93.57 attack
Feb 25 04:50:26 gw1 sshd[11707]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.159.93.57
Feb 25 04:50:28 gw1 sshd[11707]: Failed password for invalid user portal from 134.159.93.57 port 58797 ssh2
...
2020-02-25 12:23:41
162.219.248.34 attackspambots
162.219.248.34 - - [25/Feb/2020:02:39:39 +0000] "POST /wp-login.php HTTP/1.1" 200 6409 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
162.219.248.34 - - [25/Feb/2020:02:39:40 +0000] "POST /xmlrpc.php HTTP/1.1" 200 403 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...
2020-02-25 12:08:36
78.94.119.186 attack
Feb 24 23:12:01 XXX sshd[40803]: Invalid user fd from 78.94.119.186 port 44884
2020-02-25 12:46:29
119.207.126.86 attack
Feb 24 17:35:17 php1 sshd\[1914\]: Invalid user admin from 119.207.126.86
Feb 24 17:35:17 php1 sshd\[1914\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.207.126.86
Feb 24 17:35:19 php1 sshd\[1914\]: Failed password for invalid user admin from 119.207.126.86 port 34189 ssh2
Feb 24 17:39:19 php1 sshd\[2234\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.207.126.86  user=bhayman
Feb 24 17:39:22 php1 sshd\[2234\]: Failed password for bhayman from 119.207.126.86 port 47190 ssh2
2020-02-25 12:41:58
189.7.81.29 attackspam
Feb 25 04:49:20 vps691689 sshd[27823]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.7.81.29
Feb 25 04:49:22 vps691689 sshd[27823]: Failed password for invalid user super from 189.7.81.29 port 47210 ssh2
Feb 25 04:57:22 vps691689 sshd[28049]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.7.81.29
...
2020-02-25 12:20:10
93.29.187.145 attackbots
Feb 25 00:21:09 ourumov-web sshd\[12603\]: Invalid user asterisk from 93.29.187.145 port 36706
Feb 25 00:21:09 ourumov-web sshd\[12603\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=93.29.187.145
Feb 25 00:21:11 ourumov-web sshd\[12603\]: Failed password for invalid user asterisk from 93.29.187.145 port 36706 ssh2
...
2020-02-25 12:14:07
139.219.100.94 attackspam
2020-01-02T17:36:38.841192suse-nuc sshd[10688]: Invalid user ftpuser from 139.219.100.94 port 38646
...
2020-02-25 12:17:58
111.230.221.58 attack
SSH brute force
2020-02-25 12:35:35
199.122.124.84 attackbotsspam
TCP Port: 25      invalid blocked  spam-sorbs also spamrats           (450)
2020-02-25 12:45:34
95.213.177.122 attack
02/24/2020-18:21:19.362345 95.213.177.122 Protocol: 6 ET SCAN NMAP -sS window 1024
2020-02-25 12:07:57
222.186.173.201 attack
Feb 25 04:04:39 124388 sshd[9393]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.201  user=root
Feb 25 04:04:42 124388 sshd[9393]: Failed password for root from 222.186.173.201 port 56016 ssh2
Feb 25 04:04:58 124388 sshd[9393]: error: maximum authentication attempts exceeded for root from 222.186.173.201 port 56016 ssh2 [preauth]
Feb 25 04:05:02 124388 sshd[9395]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.201  user=root
Feb 25 04:05:04 124388 sshd[9395]: Failed password for root from 222.186.173.201 port 52048 ssh2
2020-02-25 12:10:05

Recently Reported IPs

104.21.16.205 104.21.16.237 104.21.16.241 125.7.66.167
104.21.16.242 104.21.16.25 104.21.16.50 104.21.16.69
104.21.16.53 104.21.16.98 104.21.16.77 104.21.16.73
104.21.16.99 104.21.17.117 104.21.17.109 125.74.10.167
104.21.17.114 104.21.17.123 104.21.17.127 104.21.17.160