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 <<>> 104.21.52.168
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 58924
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.52.168.			IN	A

;; AUTHORITY SECTION:
.			554	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021700 1800 900 604800 86400

;; Query time: 69 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 23:47:47 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 168.52.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 168.52.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
123.171.6.219 attackbots
[N3.H3.VM3] Port Scanner Detected Blocked by UFW
2020-10-08 00:00:06
138.68.5.192 attackbotsspam
sshguard
2020-10-08 00:16:28
103.225.207.51 attackspambots
MultiHost/MultiPort Probe, Scan, Hack -
2020-10-08 00:10:23
152.32.175.24 attackbots
Oct  7 13:15:53 vm1 sshd[23622]: Failed password for root from 152.32.175.24 port 36752 ssh2
...
2020-10-08 00:33:21
180.76.152.157 attack
Oct  7 18:21:24 host1 sshd[1468158]: Failed password for root from 180.76.152.157 port 36676 ssh2
Oct  7 18:25:45 host1 sshd[1468547]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.152.157  user=root
Oct  7 18:25:47 host1 sshd[1468547]: Failed password for root from 180.76.152.157 port 53520 ssh2
Oct  7 18:25:45 host1 sshd[1468547]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.152.157  user=root
Oct  7 18:25:47 host1 sshd[1468547]: Failed password for root from 180.76.152.157 port 53520 ssh2
...
2020-10-08 00:40:01
103.69.216.33 attackspam
MultiHost/MultiPort Probe, Scan, Hack -
2020-10-08 00:13:11
222.221.248.242 attackspam
Repeated brute force against a port
2020-10-08 00:25:14
103.89.91.33 attack
Trying to login email server:
Logs:
EHLO ylmf-pc,
Inbound AUTH LOGIN failed because of LogonDenied
Remote IP: 103.89.91.33
Hostname: ylmf-pc
2020-10-08 00:41:26
171.225.235.60 attackspam
Telnet/23 MH Probe, Scan, BF, Hack -
2020-10-08 00:26:04
159.69.241.38 attack
SSH Bruteforce Attempt on Honeypot
2020-10-08 00:07:54
103.113.106.7 attackspambots
srvr2: (mod_security) mod_security (id:920350) triggered by 103.113.106.7 (IN/-/axntech-dynamic-7.106.113.103.axntechnologies.in): 1 in the last 600 secs; Ports: *; Direction: inout; Trigger: LF_MODSEC; Logs: 2020/10/06 22:40:39 [error] 680602#0: *504780 [client 103.113.106.7] ModSecurity: Access denied with code 406 (phase 2). Matched "Operator `Rx' with parameter `^[\d.:]+$' against variable `REQUEST_HEADERS:Host'  [redacted] [file "/etc/modsecurity.d/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "718"] [id "920350"] [rev ""] [msg "Host header is a numeric IP address"] [redacted] [severity "4"] [ver "OWASP_CRS/3.3.0"] [maturity "0"] [accuracy "0"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-protocol"] [tag "paranoia-level/1"] [tag "OWASP_CRS"] [tag "capec/1000/210/272"] [tag "PCI/6.5.10"] [redacted] [uri "/"] [unique_id "160201683982.597998"] [ref "o0,14v21,14"], client: 103.113.106.7, [redacted] request: "GET / HTTP/1.1" [redacted]
2020-10-08 00:41:08
81.4.110.153 attack
Oct  7 09:29:04 shivevps sshd[29750]: Failed password for root from 81.4.110.153 port 33380 ssh2
Oct  7 09:32:38 shivevps sshd[29912]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.4.110.153  user=root
Oct  7 09:32:41 shivevps sshd[29912]: Failed password for root from 81.4.110.153 port 42348 ssh2
...
2020-10-08 00:21:54
123.207.10.199 attack
2020-10-07T15:36:46.022099billing sshd[29840]: Failed password for root from 123.207.10.199 port 34966 ssh2
2020-10-07T15:38:57.685090billing sshd[2418]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.207.10.199  user=root
2020-10-07T15:39:00.151156billing sshd[2418]: Failed password for root from 123.207.10.199 port 57352 ssh2
...
2020-10-08 00:09:51
61.133.232.253 attackspam
Oct  7 15:51:51 vps sshd[32706]: Failed password for root from 61.133.232.253 port 42082 ssh2
Oct  7 15:57:27 vps sshd[580]: Failed password for root from 61.133.232.253 port 50834 ssh2
...
2020-10-08 00:06:09
134.175.191.248 attack
134.175.191.248 (CN/China/-), 6 distributed sshd attacks on account [root] in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_DISTATTACK; Logs: Oct  7 08:05:09 server2 sshd[18004]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.25.74.199  user=root
Oct  7 08:05:10 server2 sshd[18004]: Failed password for root from 118.25.74.199 port 48644 ssh2
Oct  7 08:05:59 server2 sshd[18368]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.195.249  user=root
Oct  7 08:05:03 server2 sshd[17619]: Failed password for root from 156.54.122.60 port 33637 ssh2
Oct  7 08:04:45 server2 sshd[17450]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.175.191.248  user=root
Oct  7 08:04:47 server2 sshd[17450]: Failed password for root from 134.175.191.248 port 57978 ssh2

IP Addresses Blocked:

118.25.74.199 (CN/China/-)
49.235.195.249 (CN/China/-)
156.54.122.60 (IT/Italy/-)
2020-10-08 00:19:00

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