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 <<>> 104.21.5.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 64464
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.5.21.			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 02:34:10 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 21.5.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.5.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
222.255.129.133 attackspam
Unauthorized connection attempt detected from IP address 222.255.129.133 to port 2220 [J]
2020-02-01 04:34:42
89.143.127.9 attackbots
Unauthorized connection attempt detected from IP address 89.143.127.9 to port 80 [J]
2020-02-01 03:58:03
1.198.7.61 attackbots
Jan 31 20:24:33 debian-2gb-nbg1-2 kernel: \[2757932.098612\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=1.198.7.61 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=238 ID=44930 PROTO=TCP SPT=51148 DPT=6380 WINDOW=1024 RES=0x00 SYN URGP=0
2020-02-01 04:32:25
189.41.71.116 attack
Jan 31 22:12:20 www sshd\[21278\]: Invalid user factorio from 189.41.71.116Jan 31 22:12:22 www sshd\[21278\]: Failed password for invalid user factorio from 189.41.71.116 port 9680 ssh2Jan 31 22:13:34 www sshd\[21310\]: Invalid user server from 189.41.71.116
...
2020-02-01 04:18:30
113.160.244.144 attackspambots
Unauthorized connection attempt detected from IP address 113.160.244.144 to port 2220 [J]
2020-02-01 04:29:17
189.209.254.198 attack
Automatic report - Port Scan Attack
2020-02-01 04:29:42
195.191.88.99 attackbots
Unauthorized connection attempt detected from IP address 195.191.88.99 to port 2220 [J]
2020-02-01 04:37:53
185.209.0.89 attackbotsspam
01/31/2020-14:27:15.208866 185.209.0.89 Protocol: 6 ET DROP Dshield Block Listed Source group 1
2020-02-01 04:08:09
151.80.144.39 attackspam
Jan 31 20:49:47 nextcloud sshd\[11852\]: Invalid user arkserver from 151.80.144.39
Jan 31 20:49:47 nextcloud sshd\[11852\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=151.80.144.39
Jan 31 20:49:50 nextcloud sshd\[11852\]: Failed password for invalid user arkserver from 151.80.144.39 port 51022 ssh2
2020-02-01 04:15:08
222.186.175.150 attackspam
Jan 31 08:37:54 debian sshd[7453]: Unable to negotiate with 222.186.175.150 port 9142: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1 [preauth]
Jan 31 14:55:02 debian sshd[26504]: Unable to negotiate with 222.186.175.150 port 53742: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1 [preauth]
...
2020-02-01 04:17:55
107.170.244.110 attackspambots
Unauthorized connection attempt detected from IP address 107.170.244.110 to port 2220 [J]
2020-02-01 04:11:06
194.1.188.97 attackspam
Tried sshing with brute force.
2020-02-01 04:23:55
203.162.13.68 attack
Jan 31 19:19:49 game-panel sshd[12682]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.162.13.68
Jan 31 19:19:51 game-panel sshd[12682]: Failed password for invalid user d3v3l0p3r from 203.162.13.68 port 35580 ssh2
Jan 31 19:22:40 game-panel sshd[12843]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.162.13.68
2020-02-01 04:00:38
178.128.229.212 attack
[AUTOMATIC REPORT] - 41 tries in total - SSH BRUTE FORCE - IP banned
2020-02-01 04:40:43
129.211.108.201 attack
Jan 31 19:45:36 prox sshd[16164]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.211.108.201 
Jan 31 19:45:37 prox sshd[16164]: Failed password for invalid user gitlab from 129.211.108.201 port 35410 ssh2
2020-02-01 04:38:55

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