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:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.20.172
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 2049
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.20.172.			IN	A

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

;; Query time: 61 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 08:32:48 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 172.20.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 172.20.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
209.235.23.125 attackspambots
5x Failed Password
2019-10-30 14:18:20
110.89.6.11 attackspambots
IP Ban Report :  
 https://help-dysk.pl/wordpress-firewall-plugins/ip/110.89.6.11/ 
 
 CN - 1H : (790)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : CN 
 NAME ASN : ASN4134 
 
 IP : 110.89.6.11 
 
 CIDR : 110.89.0.0/16 
 
 PREFIX COUNT : 5430 
 
 UNIQUE IP COUNT : 106919680 
 
 
 ATTACKS DETECTED ASN4134 :  
  1H - 18 
  3H - 39 
  6H - 85 
 12H - 163 
 24H - 316 
 
 DateTime : 2019-10-30 04:53:43 
 
 INFO :  HACK ! - Looking for resource vulnerabilities Scan Detected and Blocked by ADMIN  - data recovery
2019-10-30 14:16:07
106.12.205.48 attackbots
Automatic report - Banned IP Access
2019-10-30 14:35:07
159.203.201.107 attackbots
8945/tcp 520/tcp 56483/tcp...
[2019-09-15/10-29]42pkt,36pt.(tcp),3pt.(udp)
2019-10-30 14:15:45
187.95.194.145 attackspambots
1433/tcp 1433/tcp 1433/tcp...
[2019-10-11/30]6pkt,1pt.(tcp)
2019-10-30 14:28:15
198.108.66.88 attack
2323/tcp 16993/tcp 8089/tcp...
[2019-09-02/10-30]13pkt,10pt.(tcp),1pt.(udp)
2019-10-30 14:20:03
81.22.45.133 attackbotsspam
2019-10-30T06:00:32.008051+01:00 lumpi kernel: [2234024.653716] INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.133 DST=172.31.1.100 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=34631 PROTO=TCP SPT=44062 DPT=6000 WINDOW=1024 RES=0x00 SYN URGP=0 
...
2019-10-30 14:22:50
156.222.151.142 attackspam
IP Ban Report :  
 https://help-dysk.pl/wordpress-firewall-plugins/ip/156.222.151.142/ 
 
 EG - 1H : (158)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : EG 
 NAME ASN : ASN8452 
 
 IP : 156.222.151.142 
 
 CIDR : 156.222.128.0/18 
 
 PREFIX COUNT : 833 
 
 UNIQUE IP COUNT : 7610368 
 
 
 ATTACKS DETECTED ASN8452 :  
  1H - 6 
  3H - 19 
  6H - 28 
 12H - 68 
 24H - 154 
 
 DateTime : 2019-10-30 04:53:35 
 
 INFO : Port Scan TELNET Detected and Blocked by ADMIN  - data recovery
2019-10-30 14:20:56
92.86.104.180 attackspam
23/tcp 23/tcp
[2019-10-21/30]2pkt
2019-10-30 14:35:40
128.199.103.239 attackbots
Oct 30 02:00:02 plusreed sshd[5898]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.103.239  user=root
Oct 30 02:00:04 plusreed sshd[5898]: Failed password for root from 128.199.103.239 port 50892 ssh2
...
2019-10-30 14:45:57
216.218.206.74 attack
445/tcp 27017/tcp 23/tcp...
[2019-08-29/10-29]38pkt,15pt.(tcp),1pt.(udp)
2019-10-30 14:08:43
107.174.108.81 attackbots
Looking for resource vulnerabilities
2019-10-30 14:34:39
62.114.126.172 attackbots
445/tcp 445/tcp 445/tcp...
[2019-09-01/10-30]6pkt,1pt.(tcp)
2019-10-30 14:46:27
111.15.184.148 attack
23/tcp 23/tcp 23/tcp...
[2019-10-16/30]4pkt,1pt.(tcp)
2019-10-30 14:22:21
145.239.198.218 attack
Oct 30 08:10:46 sauna sshd[103797]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=145.239.198.218
Oct 30 08:10:48 sauna sshd[103797]: Failed password for invalid user ciit from 145.239.198.218 port 50896 ssh2
...
2019-10-30 14:19:50

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