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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.56.3
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4466
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.56.3.			IN	A

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

;; Query time: 104 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:37:56 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 3.56.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 3.56.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
106.13.11.225 attackspam
Aug 13 20:30:31 srv206 sshd[4736]: Invalid user liao from 106.13.11.225
...
2019-08-14 04:51:56
80.211.16.26 attack
Aug 13 20:53:09 XXX sshd[8962]: Invalid user test from 80.211.16.26 port 44998
2019-08-14 04:55:59
77.234.46.145 attackspambots
\[2019-08-13 22:23:57\] NOTICE\[5713\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '77.234.46.145:5987' \(callid: 627922654-1829003958-458813453\) - Failed to authenticate
\[2019-08-13 22:23:57\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-08-13T22:23:57.475+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="627922654-1829003958-458813453",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/77.234.46.145/5987",Challenge="1565727837/1f8f0cf151489e941cd77f7763c2fb0a",Response="325d83befecdb5d5dbd7667c28bb7879",ExpectedResponse=""
\[2019-08-13 22:23:57\] NOTICE\[18654\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '77.234.46.145:5987' \(callid: 627922654-1829003958-458813453\) - Failed to authenticate
\[2019-08-13 22:23:57\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed
2019-08-14 04:49:01
104.131.175.24 attackspam
Aug 14 02:17:29 vibhu-HP-Z238-Microtower-Workstation sshd\[27290\]: Invalid user wei from 104.131.175.24
Aug 14 02:17:29 vibhu-HP-Z238-Microtower-Workstation sshd\[27290\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.131.175.24
Aug 14 02:17:31 vibhu-HP-Z238-Microtower-Workstation sshd\[27290\]: Failed password for invalid user wei from 104.131.175.24 port 43847 ssh2
Aug 14 02:22:00 vibhu-HP-Z238-Microtower-Workstation sshd\[27414\]: Invalid user odoo9 from 104.131.175.24
Aug 14 02:22:00 vibhu-HP-Z238-Microtower-Workstation sshd\[27414\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.131.175.24
...
2019-08-14 05:00:24
77.247.110.83 attackbots
SIPVicious Scanner Detection, PTR: PTR record not found
2019-08-14 05:04:08
204.48.21.165 attack
MultiHost/MultiPort Probe, Scan, Hack -
2019-08-14 04:30:52
14.199.216.96 attackspambots
Unauthorised access (Aug 13) SRC=14.199.216.96 LEN=40 TTL=47 ID=37567 TCP DPT=8080 WINDOW=60 SYN 
Unauthorised access (Aug 13) SRC=14.199.216.96 LEN=40 TTL=47 ID=18447 TCP DPT=8080 WINDOW=51630 SYN 
Unauthorised access (Aug 11) SRC=14.199.216.96 LEN=40 TTL=47 ID=26715 TCP DPT=8080 WINDOW=60 SYN
2019-08-14 04:43:48
54.38.156.181 attackspambots
Aug 13 22:20:59 SilenceServices sshd[20741]: Failed password for root from 54.38.156.181 port 54688 ssh2
Aug 13 22:26:57 SilenceServices sshd[24405]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.38.156.181
Aug 13 22:26:59 SilenceServices sshd[24405]: Failed password for invalid user linda from 54.38.156.181 port 47580 ssh2
2019-08-14 04:28:11
164.68.108.60 attackbotsspam
miraniessen.de 164.68.108.60 \[13/Aug/2019:20:25:46 +0200\] "POST /wp-login.php HTTP/1.1" 200 5955 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
miraniessen.de 164.68.108.60 \[13/Aug/2019:20:25:46 +0200\] "POST /wp-login.php HTTP/1.1" 200 5967 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
2019-08-14 04:39:09
94.23.227.116 attackbots
Aug 14 03:30:49 webhost01 sshd[13864]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.23.227.116
Aug 14 03:30:51 webhost01 sshd[13864]: Failed password for invalid user jake from 94.23.227.116 port 60102 ssh2
...
2019-08-14 04:54:12
138.68.82.220 attackspam
Aug 13 21:16:06 XXX sshd[14259]: Invalid user pao from 138.68.82.220 port 35574
2019-08-14 05:06:59
192.42.116.18 attackbotsspam
Aug 13 20:23:47 mail sshd\[11284\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.42.116.18  user=root
Aug 13 20:23:49 mail sshd\[11284\]: Failed password for root from 192.42.116.18 port 47860 ssh2
Aug 13 20:23:52 mail sshd\[11284\]: Failed password for root from 192.42.116.18 port 47860 ssh2
Aug 13 20:23:54 mail sshd\[11284\]: Failed password for root from 192.42.116.18 port 47860 ssh2
Aug 13 20:23:57 mail sshd\[11284\]: Failed password for root from 192.42.116.18 port 47860 ssh2
2019-08-14 04:45:25
64.53.199.198 attackbotsspam
Aug 13 22:26:47 nginx sshd[66643]: error: maximum authentication attempts exceeded for invalid user admin from 64.53.199.198 port 53004 ssh2 [preauth]
Aug 13 22:26:47 nginx sshd[66643]: Disconnecting: Too many authentication failures [preauth]
2019-08-14 04:31:44
178.57.193.14 attackbots
[portscan] Port scan
2019-08-14 04:43:14
189.109.247.150 attackspam
Aug 13 20:19:41 SilenceServices sshd[5672]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.109.247.150
Aug 13 20:19:43 SilenceServices sshd[5672]: Failed password for invalid user skynet from 189.109.247.150 port 21751 ssh2
Aug 13 20:25:52 SilenceServices sshd[10841]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.109.247.150
2019-08-14 04:35:11

Recently Reported IPs

104.21.56.40 104.21.56.254 104.21.56.46 104.21.56.43
104.21.56.49 104.21.7.58 104.21.56.53 104.21.56.54
104.21.56.5 104.21.56.63 104.21.56.62 104.21.56.70
104.21.56.75 104.21.56.76 104.21.56.82 104.21.56.9
104.21.56.90 104.21.56.93 104.21.7.6 157.230.131.25