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: Russian Federation

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 <<>> 81.19.135.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 32423
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;81.19.135.21.			IN	A

;; AUTHORITY SECTION:
.			554	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022020701 1800 900 604800 86400

;; Query time: 64 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Feb 08 04:30:48 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 21.135.19.81.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.135.19.81.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
142.44.184.79 attack
Oct 29 10:59:07 webhost01 sshd[1558]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=142.44.184.79
Oct 29 10:59:09 webhost01 sshd[1558]: Failed password for invalid user vogel from 142.44.184.79 port 59518 ssh2
...
2019-10-29 12:16:58
5.196.243.201 attackspam
2019-10-29T04:28:48.932058abusebot-5.cloudsearch.cf sshd\[27988\]: Invalid user max from 5.196.243.201 port 54710
2019-10-29 12:38:04
178.238.232.40 attack
[portscan] Port scan
2019-10-29 12:22:58
106.13.198.32 attackbotsspam
Oct 29 05:29:08 meumeu sshd[8108]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.198.32 
Oct 29 05:29:11 meumeu sshd[8108]: Failed password for invalid user qv from 106.13.198.32 port 38306 ssh2
Oct 29 05:33:55 meumeu sshd[8615]: Failed password for root from 106.13.198.32 port 47704 ssh2
...
2019-10-29 12:34:52
139.99.157.106 attackbotsspam
fail2ban honeypot
2019-10-29 12:51:55
185.186.141.125 attackbots
185.186.141.125 - - \[29/Oct/2019:04:06:52 +0000\] "POST /wp-login.php HTTP/1.1" 200 4358 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
185.186.141.125 - - \[29/Oct/2019:04:06:53 +0000\] "POST /xmlrpc.php HTTP/1.1" 200 403 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
...
2019-10-29 12:51:41
122.5.46.22 attack
Oct 29 05:11:52 localhost sshd\[9348\]: Invalid user rabbitmq from 122.5.46.22 port 33200
Oct 29 05:11:52 localhost sshd\[9348\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.5.46.22
Oct 29 05:11:54 localhost sshd\[9348\]: Failed password for invalid user rabbitmq from 122.5.46.22 port 33200 ssh2
2019-10-29 12:24:27
61.224.49.177 attackbots
" "
2019-10-29 12:45:04
13.125.7.253 attackspambots
blogonese.net 13.125.7.253 \[29/Oct/2019:04:57:54 +0100\] "POST /wp-login.php HTTP/1.1" 200 5769 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
blogonese.net 13.125.7.253 \[29/Oct/2019:04:57:57 +0100\] "POST /wp-login.php HTTP/1.1" 200 5729 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
2019-10-29 12:46:14
106.13.107.106 attack
2019-10-29T04:56:52.515875  sshd[8204]: Invalid user openelec from 106.13.107.106 port 40172
2019-10-29T04:56:52.531045  sshd[8204]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.107.106
2019-10-29T04:56:52.515875  sshd[8204]: Invalid user openelec from 106.13.107.106 port 40172
2019-10-29T04:56:54.462666  sshd[8204]: Failed password for invalid user openelec from 106.13.107.106 port 40172 ssh2
2019-10-29T05:07:30.243577  sshd[8360]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.107.106  user=root
2019-10-29T05:07:32.760678  sshd[8360]: Failed password for root from 106.13.107.106 port 53028 ssh2
...
2019-10-29 12:43:22
175.23.106.20 attackbotsspam
IP Ban Report :  
 https://help-dysk.pl/wordpress-firewall-plugins/ip/175.23.106.20/ 
 
 CN - 1H : (739)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : CN 
 NAME ASN : ASN4837 
 
 IP : 175.23.106.20 
 
 CIDR : 175.16.0.0/13 
 
 PREFIX COUNT : 1262 
 
 UNIQUE IP COUNT : 56665856 
 
 
 ATTACKS DETECTED ASN4837 :  
  1H - 14 
  3H - 44 
  6H - 70 
 12H - 125 
 24H - 256 
 
 DateTime : 2019-10-29 04:58:06 
 
 INFO : Port Scan TELNET Detected and Blocked by ADMIN  - data recovery
2019-10-29 12:38:18
81.22.45.190 attackspam
Oct 29 05:15:10 mc1 kernel: \[3608838.153268\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.190 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=30267 PROTO=TCP SPT=46730 DPT=33364 WINDOW=1024 RES=0x00 SYN URGP=0 
Oct 29 05:15:37 mc1 kernel: \[3608865.092481\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.190 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=41732 PROTO=TCP SPT=46730 DPT=33381 WINDOW=1024 RES=0x00 SYN URGP=0 
Oct 29 05:16:19 mc1 kernel: \[3608906.601228\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.190 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=30750 PROTO=TCP SPT=46730 DPT=33033 WINDOW=1024 RES=0x00 SYN URGP=0 
...
2019-10-29 12:20:49
217.68.212.73 attackbotsspam
slow and persistent scanner
2019-10-29 12:49:34
188.213.161.105 attackspambots
Automatic report - Banned IP Access
2019-10-29 12:32:45
222.186.180.223 attackspambots
2019-10-29T04:08:57.192304abusebot-5.cloudsearch.cf sshd\[27760\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.223  user=root
2019-10-29 12:14:09

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