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 <<>> 104.21.68.138
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 32082
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.68.138.			IN	A

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

;; Query time: 19 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:17:12 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 138.68.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 138.68.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
164.138.236.227 attackbotsspam
postfix (unknown user, SPF fail or relay access denied)
2019-10-19 13:07:39
47.40.20.138 attackspambots
fail2ban
2019-10-19 12:51:41
182.61.109.58 attackbotsspam
Oct 19 05:53:17 ns37 sshd[8923]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.109.58
Oct 19 05:53:19 ns37 sshd[8923]: Failed password for invalid user shashi from 182.61.109.58 port 34730 ssh2
Oct 19 05:57:26 ns37 sshd[9126]: Failed password for root from 182.61.109.58 port 45922 ssh2
2019-10-19 12:54:34
212.47.227.129 attackbots
WordPress wp-login brute force :: 212.47.227.129 0.044 BYPASS [19/Oct/2019:14:57:39  1100] [censored_2] "POST /wp-login.php HTTP/1.1" 200 4630 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
2019-10-19 12:48:30
159.203.111.100 attackbots
Oct 19 07:04:17 MK-Soft-Root1 sshd[5244]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.111.100 
Oct 19 07:04:19 MK-Soft-Root1 sshd[5244]: Failed password for invalid user qwe123 from 159.203.111.100 port 53898 ssh2
...
2019-10-19 13:04:50
152.136.102.223 attackbotsspam
Oct 17 20:02:50 reporting1 sshd[23724]: Invalid user teste from 152.136.102.223
Oct 17 20:02:50 reporting1 sshd[23724]: Failed password for invalid user teste from 152.136.102.223 port 37922 ssh2
Oct 17 20:24:54 reporting1 sshd[3518]: User r.r from 152.136.102.223 not allowed because not listed in AllowUsers
Oct 17 20:24:54 reporting1 sshd[3518]: Failed password for invalid user r.r from 152.136.102.223 port 55708 ssh2
Oct 17 20:29:20 reporting1 sshd[5878]: Invalid user mp from 152.136.102.223
Oct 17 20:29:20 reporting1 sshd[5878]: Failed password for invalid user mp from 152.136.102.223 port 39854 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=152.136.102.223
2019-10-19 13:29:39
81.22.45.116 attackbotsspam
Oct 19 06:58:21 mc1 kernel: \[2747462.620748\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.116 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=49440 PROTO=TCP SPT=42696 DPT=13552 WINDOW=1024 RES=0x00 SYN URGP=0 
Oct 19 07:00:32 mc1 kernel: \[2747593.833636\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.116 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=37436 PROTO=TCP SPT=42696 DPT=13933 WINDOW=1024 RES=0x00 SYN URGP=0 
Oct 19 07:00:53 mc1 kernel: \[2747615.468494\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.116 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=32898 PROTO=TCP SPT=42696 DPT=13643 WINDOW=1024 RES=0x00 SYN URGP=0 
...
2019-10-19 13:23:37
109.154.222.163 attack
Automatic report - Port Scan Attack
2019-10-19 13:22:08
46.38.144.32 attackbotsspam
Oct 19 06:08:49 mail postfix/smtpd\[7245\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Oct 19 06:12:28 mail postfix/smtpd\[7245\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Oct 19 06:16:16 mail postfix/smtpd\[7324\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Oct 19 06:49:40 mail postfix/smtpd\[7906\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
2019-10-19 12:52:14
172.81.243.232 attack
SSH bruteforce (Triggered fail2ban)
2019-10-19 13:40:58
49.36.136.113 attack
Hit on /wp-login.php
2019-10-19 13:02:15
36.235.3.221 attackspam
IP Ban Report :  
 https://help-dysk.pl/wordpress-firewall-plugins/ip/36.235.3.221/ 
 
 TW - 1H : (135)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : TW 
 NAME ASN : ASN3462 
 
 IP : 36.235.3.221 
 
 CIDR : 36.235.0.0/16 
 
 PREFIX COUNT : 390 
 
 UNIQUE IP COUNT : 12267520 
 
 
 ATTACKS DETECTED ASN3462 :  
  1H - 5 
  3H - 13 
  6H - 25 
 12H - 50 
 24H - 125 
 
 DateTime : 2019-10-19 05:57:06 
 
 INFO : Port Scan TELNET Detected and Blocked by ADMIN  - data recovery
2019-10-19 13:04:33
189.26.113.98 attack
Oct 19 06:30:20 ns381471 sshd[21578]: Failed password for root from 189.26.113.98 port 60872 ssh2
Oct 19 06:35:03 ns381471 sshd[21805]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.26.113.98
Oct 19 06:35:05 ns381471 sshd[21805]: Failed password for invalid user anonymous from 189.26.113.98 port 46154 ssh2
2019-10-19 12:45:42
218.95.167.16 attackbotsspam
2019-10-19T04:28:16.500588abusebot-5.cloudsearch.cf sshd\[31293\]: Invalid user ucpss from 218.95.167.16 port 64466
2019-10-19 12:56:14
69.90.16.116 attackbots
2019-10-18T23:50:34.866140ns525875 sshd\[8289\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=69.90.16.116  user=root
2019-10-18T23:50:36.752961ns525875 sshd\[8289\]: Failed password for root from 69.90.16.116 port 45598 ssh2
2019-10-18T23:57:28.750497ns525875 sshd\[16620\]: Invalid user ppb from 69.90.16.116 port 46412
2019-10-18T23:57:28.756914ns525875 sshd\[16620\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=69.90.16.116
...
2019-10-19 12:54:21

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