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 <<>> 104.21.81.139
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 56657
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.139.			IN	A

;; AUTHORITY SECTION:
.			285	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021801 1800 900 604800 86400

;; Query time: 27 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Feb 19 03:31:11 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 139.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 139.81.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
210.1.19.131 attack
Mar 26 17:38:26 ns392434 sshd[372]: Invalid user shiqian from 210.1.19.131 port 47758
Mar 26 17:38:26 ns392434 sshd[372]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=210.1.19.131
Mar 26 17:38:26 ns392434 sshd[372]: Invalid user shiqian from 210.1.19.131 port 47758
Mar 26 17:38:28 ns392434 sshd[372]: Failed password for invalid user shiqian from 210.1.19.131 port 47758 ssh2
Mar 26 17:46:52 ns392434 sshd[673]: Invalid user inter from 210.1.19.131 port 55814
Mar 26 17:46:52 ns392434 sshd[673]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=210.1.19.131
Mar 26 17:46:52 ns392434 sshd[673]: Invalid user inter from 210.1.19.131 port 55814
Mar 26 17:46:53 ns392434 sshd[673]: Failed password for invalid user inter from 210.1.19.131 port 55814 ssh2
Mar 26 17:51:28 ns392434 sshd[702]: Invalid user couchdb from 210.1.19.131 port 34992
2020-03-27 04:08:15
193.224.52.213 attack
Mar 26 13:17:06 mail1 sshd[29731]: Invalid user test from 193.224.52.213 port 57763
Mar 26 13:17:20 mail1 sshd[29731]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.224.52.213
Mar 26 13:17:22 mail1 sshd[29731]: Failed password for invalid user test from 193.224.52.213 port 57763 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=193.224.52.213
2020-03-27 04:01:55
185.154.204.242 attack
Automatic report - Banned IP Access
2020-03-27 03:59:34
122.142.235.222 attackspam
Unauthorised access (Mar 26) SRC=122.142.235.222 LEN=40 TTL=49 ID=56671 TCP DPT=8080 WINDOW=36270 SYN 
Unauthorised access (Mar 26) SRC=122.142.235.222 LEN=40 TTL=49 ID=48945 TCP DPT=8080 WINDOW=18799 SYN 
Unauthorised access (Mar 25) SRC=122.142.235.222 LEN=40 TTL=49 ID=14464 TCP DPT=8080 WINDOW=18799 SYN 
Unauthorised access (Mar 25) SRC=122.142.235.222 LEN=40 TTL=49 ID=44738 TCP DPT=8080 WINDOW=18799 SYN 
Unauthorised access (Mar 25) SRC=122.142.235.222 LEN=40 TTL=49 ID=41200 TCP DPT=8080 WINDOW=18799 SYN 
Unauthorised access (Mar 24) SRC=122.142.235.222 LEN=40 TTL=49 ID=52746 TCP DPT=8080 WINDOW=18799 SYN
2020-03-27 04:08:29
89.208.30.149 attack
Automatic report - Port Scan Attack
2020-03-27 03:44:44
92.118.161.21 attackbots
Fail2Ban Ban Triggered
2020-03-27 03:54:46
23.129.64.152 attack
Mar 26 16:52:58 vpn01 sshd[5325]: Failed password for root from 23.129.64.152 port 58154 ssh2
Mar 26 16:53:11 vpn01 sshd[5325]: error: maximum authentication attempts exceeded for root from 23.129.64.152 port 58154 ssh2 [preauth]
...
2020-03-27 03:52:40
118.34.12.35 attack
Mar 26 20:10:47 Ubuntu-1404-trusty-64-minimal sshd\[32245\]: Invalid user oto from 118.34.12.35
Mar 26 20:10:47 Ubuntu-1404-trusty-64-minimal sshd\[32245\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.34.12.35
Mar 26 20:10:48 Ubuntu-1404-trusty-64-minimal sshd\[32245\]: Failed password for invalid user oto from 118.34.12.35 port 49472 ssh2
Mar 26 20:21:01 Ubuntu-1404-trusty-64-minimal sshd\[9576\]: Invalid user edel from 118.34.12.35
Mar 26 20:21:01 Ubuntu-1404-trusty-64-minimal sshd\[9576\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.34.12.35
2020-03-27 03:55:33
181.48.120.219 attackbots
Mar 26 18:27:28 ourumov-web sshd\[21928\]: Invalid user nessie from 181.48.120.219 port 35870
Mar 26 18:27:28 ourumov-web sshd\[21928\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.48.120.219
Mar 26 18:27:30 ourumov-web sshd\[21928\]: Failed password for invalid user nessie from 181.48.120.219 port 35870 ssh2
...
2020-03-27 04:02:14
103.206.54.80 attackspam
Honeypot attack, port: 81, PTR: PTR record not found
2020-03-27 03:43:59
63.131.189.127 attackspambots
Brute forcing email accounts
2020-03-27 03:45:13
183.129.141.44 attackbots
Invalid user server from 183.129.141.44 port 43836
2020-03-27 03:58:15
190.103.181.253 attackbotsspam
Lines containing failures of 190.103.181.253
Mar 26 13:05:26 own sshd[13291]: Invalid user teste from 190.103.181.253 port 58255
Mar 26 13:05:26 own sshd[13291]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.103.181.253
Mar 26 13:05:27 own sshd[13291]: Failed password for invalid user teste from 190.103.181.253 port 58255 ssh2
Mar 26 13:05:28 own sshd[13291]: Received disconnect from 190.103.181.253 port 58255:11: Bye Bye [preauth]
Mar 26 13:05:28 own sshd[13291]: Disconnected from invalid user teste 190.103.181.253 port 58255 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=190.103.181.253
2020-03-27 03:41:31
92.118.161.25 attackbots
ICMP MH Probe, Scan /Distributed -
2020-03-27 03:51:56
51.15.245.32 attack
Mar 26 20:20:23 dev0-dcde-rnet sshd[1338]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.15.245.32
Mar 26 20:20:25 dev0-dcde-rnet sshd[1338]: Failed password for invalid user faxbox from 51.15.245.32 port 40920 ssh2
Mar 26 20:29:29 dev0-dcde-rnet sshd[1437]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.15.245.32
2020-03-27 04:17:29

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