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 <<>> 104.21.21.191
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 63589
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.21.191.			IN	A

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

;; Query time: 59 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 08:33:11 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 191.21.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 191.21.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
178.128.121.188 attack
Sep 28 01:13:05 eventyay sshd[3134]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.121.188
Sep 28 01:13:07 eventyay sshd[3134]: Failed password for invalid user xguest from 178.128.121.188 port 35876 ssh2
Sep 28 01:18:00 eventyay sshd[3194]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.121.188
...
2019-09-28 07:25:54
173.45.164.2 attackspam
Sep 27 21:18:25 marvibiene sshd[3960]: Invalid user ubuntu from 173.45.164.2 port 59304
Sep 27 21:18:25 marvibiene sshd[3960]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=173.45.164.2
Sep 27 21:18:25 marvibiene sshd[3960]: Invalid user ubuntu from 173.45.164.2 port 59304
Sep 27 21:18:27 marvibiene sshd[3960]: Failed password for invalid user ubuntu from 173.45.164.2 port 59304 ssh2
...
2019-09-28 07:22:52
213.32.21.139 attackspambots
Sep 27 12:46:50 lcprod sshd\[4591\]: Invalid user kulwinder from 213.32.21.139
Sep 27 12:46:50 lcprod sshd\[4591\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.ip-213-32-21.eu
Sep 27 12:46:52 lcprod sshd\[4591\]: Failed password for invalid user kulwinder from 213.32.21.139 port 39300 ssh2
Sep 27 12:52:02 lcprod sshd\[5093\]: Invalid user tmp213 from 213.32.21.139
Sep 27 12:52:02 lcprod sshd\[5093\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.ip-213-32-21.eu
2019-09-28 07:04:12
188.191.108.234 attackspambots
IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/188.191.108.234/ 
 UA - 1H : (127)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : UA 
 NAME ASN : ASN43310 
 
 IP : 188.191.108.234 
 
 CIDR : 188.191.108.0/22 
 
 PREFIX COUNT : 7 
 
 UNIQUE IP COUNT : 5376 
 
 
 WYKRYTE ATAKI Z ASN43310 :  
  1H - 1 
  3H - 1 
  6H - 1 
 12H - 1 
 24H - 1 
 
 INFO : SERVER - Looking for resource vulnerabilities Detected and Blocked by ADMIN  - data recovery
2019-09-28 07:07:02
46.38.144.17 attackspambots
Sep 27 23:32:01 relay postfix/smtpd\[4068\]: warning: unknown\[46.38.144.17\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 27 23:32:18 relay postfix/smtpd\[7576\]: warning: unknown\[46.38.144.17\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 27 23:33:17 relay postfix/smtpd\[15200\]: warning: unknown\[46.38.144.17\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 27 23:33:34 relay postfix/smtpd\[21460\]: warning: unknown\[46.38.144.17\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 27 23:34:33 relay postfix/smtpd\[4068\]: warning: unknown\[46.38.144.17\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2019-09-28 07:14:09
132.248.88.73 attackspam
Sep 26 15:43:49 finn sshd[16357]: Invalid user recruhostname from 132.248.88.73 port 40008
Sep 26 15:43:49 finn sshd[16357]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.248.88.73
Sep 26 15:43:51 finn sshd[16357]: Failed password for invalid user recruhostname from 132.248.88.73 port 40008 ssh2
Sep 26 15:43:51 finn sshd[16357]: Received disconnect from 132.248.88.73 port 40008:11: Bye Bye [preauth]
Sep 26 15:43:51 finn sshd[16357]: Disconnected from 132.248.88.73 port 40008 [preauth]
Sep 26 15:59:58 finn sshd[19627]: Invalid user adminixxxr from 132.248.88.73 port 37154
Sep 26 15:59:58 finn sshd[19627]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.248.88.73
Sep 26 16:00:00 finn sshd[19627]: Failed password for invalid user adminixxxr from 132.248.88.73 port 37154 ssh2
Sep 26 16:00:00 finn sshd[19627]: Received disconnect from 132.248.88.73 port 37154:11: Bye Bye [preauth]
Sep 2........
-------------------------------
2019-09-28 07:24:02
168.181.48.123 attackbots
Sep 28 00:08:01 v22019058497090703 sshd[16220]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=168.181.48.123
Sep 28 00:08:03 v22019058497090703 sshd[16220]: Failed password for invalid user samuel1 from 168.181.48.123 port 25446 ssh2
Sep 28 00:13:03 v22019058497090703 sshd[16728]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=168.181.48.123
...
2019-09-28 07:01:53
94.23.6.187 attackspam
2019-09-26 00:04:00 server sshd[99223]: Failed password for invalid user betteti from 94.23.6.187 port 60132 ssh2
2019-09-28 06:46:55
96.127.158.234 attackbots
...
2019-09-28 06:47:51
222.186.42.241 attack
Sep 28 01:11:03 saschabauer sshd[10543]: Failed password for root from 222.186.42.241 port 29268 ssh2
2019-09-28 07:19:39
185.65.52.214 attack
WordPress login Brute force / Web App Attack on client site.
2019-09-28 07:04:29
111.231.110.80 attackspambots
Sep 27 13:05:32 php1 sshd\[5782\]: Invalid user redmine from 111.231.110.80
Sep 27 13:05:32 php1 sshd\[5782\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.231.110.80
Sep 27 13:05:35 php1 sshd\[5782\]: Failed password for invalid user redmine from 111.231.110.80 port 25395 ssh2
Sep 27 13:09:55 php1 sshd\[6249\]: Invalid user icinga from 111.231.110.80
Sep 27 13:09:55 php1 sshd\[6249\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.231.110.80
2019-09-28 07:22:30
190.128.230.14 attackbotsspam
Sep 27 12:33:44 web1 sshd\[20775\]: Invalid user odroid from 190.128.230.14
Sep 27 12:33:44 web1 sshd\[20775\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.128.230.14
Sep 27 12:33:46 web1 sshd\[20775\]: Failed password for invalid user odroid from 190.128.230.14 port 47439 ssh2
Sep 27 12:39:39 web1 sshd\[21357\]: Invalid user zimbra from 190.128.230.14
Sep 27 12:39:39 web1 sshd\[21357\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.128.230.14
2019-09-28 06:43:37
54.149.170.121 attackbots
09/28/2019-00:52:20.188392 54.149.170.121 Protocol: 6 SURICATA TLS invalid record/traffic
2019-09-28 07:11:06
193.105.134.95 attack
Sep 28 00:51:04 andromeda sshd\[49664\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.105.134.95
Sep 28 00:51:06 andromeda sshd\[49664\]: Failed password for invalid user 111111 from 193.105.134.95 port 14206 ssh2
Sep 28 00:51:22 andromeda sshd\[49920\]: Invalid user acc from 193.105.134.95 port 47224
2019-09-28 07:09:10

Recently Reported IPs

104.21.21.195 104.21.21.193 104.21.21.158 104.21.21.204
104.21.21.3 104.21.21.201 104.21.21.35 104.21.21.251
104.21.21.80 104.21.21.83 104.21.21.70 104.21.21.76
104.21.22.101 104.21.22.115 104.21.22.103 128.1.84.10
104.21.22.137 104.21.22.169 104.21.22.184 104.21.22.187