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 <<>> 104.21.39.31
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 52230
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.39.31.			IN	A

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

;; Query time: 49 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 21:41:22 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 31.39.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 31.39.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
51.255.25.159 attackbots
2020-04-27T12:56:20.181799vivaldi2.tree2.info sshd[28675]: Invalid user md from 51.255.25.159
2020-04-27T12:56:20.205538vivaldi2.tree2.info sshd[28675]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=ip159.ip-51-255-25.eu
2020-04-27T12:56:20.181799vivaldi2.tree2.info sshd[28675]: Invalid user md from 51.255.25.159
2020-04-27T12:56:22.035705vivaldi2.tree2.info sshd[28675]: Failed password for invalid user md from 51.255.25.159 port 52778 ssh2
2020-04-27T12:59:08.045546vivaldi2.tree2.info sshd[28775]: Invalid user temp from 51.255.25.159
...
2020-04-27 12:51:21
45.55.145.31 attackbotsspam
Apr 27 04:51:33 vps58358 sshd\[18764\]: Invalid user web from 45.55.145.31Apr 27 04:51:35 vps58358 sshd\[18764\]: Failed password for invalid user web from 45.55.145.31 port 40668 ssh2Apr 27 04:55:24 vps58358 sshd\[18797\]: Invalid user rajesh from 45.55.145.31Apr 27 04:55:26 vps58358 sshd\[18797\]: Failed password for invalid user rajesh from 45.55.145.31 port 46123 ssh2Apr 27 04:59:07 vps58358 sshd\[18830\]: Invalid user pox from 45.55.145.31Apr 27 04:59:10 vps58358 sshd\[18830\]: Failed password for invalid user pox from 45.55.145.31 port 51576 ssh2
...
2020-04-27 12:48:24
106.12.54.13 attackspambots
Apr 27 05:42:07 Ubuntu-1404-trusty-64-minimal sshd\[1830\]: Invalid user ef from 106.12.54.13
Apr 27 05:42:07 Ubuntu-1404-trusty-64-minimal sshd\[1830\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.54.13
Apr 27 05:42:10 Ubuntu-1404-trusty-64-minimal sshd\[1830\]: Failed password for invalid user ef from 106.12.54.13 port 45114 ssh2
Apr 27 05:59:26 Ubuntu-1404-trusty-64-minimal sshd\[9152\]: Invalid user admin from 106.12.54.13
Apr 27 05:59:26 Ubuntu-1404-trusty-64-minimal sshd\[9152\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.54.13
2020-04-27 12:36:19
213.149.176.182 attackbotsspam
Automatic report - Port Scan Attack
2020-04-27 12:40:16
222.186.15.10 attack
27.04.2020 04:57:06 SSH access blocked by firewall
2020-04-27 12:58:58
212.64.16.31 attackspam
5x Failed Password
2020-04-27 12:31:13
159.203.176.15 attack
Apr 27 05:54:05 srv01 sshd[17837]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.176.15  user=root
Apr 27 05:54:06 srv01 sshd[17837]: Failed password for root from 159.203.176.15 port 46402 ssh2
Apr 27 05:59:29 srv01 sshd[17993]: Invalid user noc from 159.203.176.15 port 58880
Apr 27 05:59:29 srv01 sshd[17993]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.176.15
Apr 27 05:59:29 srv01 sshd[17993]: Invalid user noc from 159.203.176.15 port 58880
Apr 27 05:59:30 srv01 sshd[17993]: Failed password for invalid user noc from 159.203.176.15 port 58880 ssh2
...
2020-04-27 12:35:04
122.51.198.207 attack
Apr 27 11:31:29 webhost01 sshd[9835]: Failed password for root from 122.51.198.207 port 60458 ssh2
...
2020-04-27 12:54:02
106.52.188.43 attackbotsspam
2020-04-26T23:49:16.6906351495-001 sshd[33771]: Invalid user oracle2 from 106.52.188.43 port 56520
2020-04-26T23:49:16.6982801495-001 sshd[33771]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.52.188.43
2020-04-26T23:49:16.6906351495-001 sshd[33771]: Invalid user oracle2 from 106.52.188.43 port 56520
2020-04-26T23:49:18.6454841495-001 sshd[33771]: Failed password for invalid user oracle2 from 106.52.188.43 port 56520 ssh2
2020-04-26T23:53:14.8270831495-001 sshd[34020]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.52.188.43  user=root
2020-04-26T23:53:17.4467121495-001 sshd[34020]: Failed password for root from 106.52.188.43 port 43272 ssh2
...
2020-04-27 12:24:21
112.85.42.238 attackspam
Apr 27 06:41:26 server sshd[11148]: Failed password for root from 112.85.42.238 port 52597 ssh2
Apr 27 06:41:29 server sshd[11148]: Failed password for root from 112.85.42.238 port 52597 ssh2
Apr 27 06:41:31 server sshd[11148]: Failed password for root from 112.85.42.238 port 52597 ssh2
2020-04-27 12:54:23
109.242.211.180 attack
Automatic report - Port Scan Attack
2020-04-27 12:50:30
106.66.131.214 attack
Repeated attempts against wp-login
2020-04-27 12:54:56
197.159.68.8 attackspambots
Apr 27 05:59:13 ourumov-web sshd\[8453\]: Invalid user test3 from 197.159.68.8 port 46521
Apr 27 05:59:13 ourumov-web sshd\[8453\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=197.159.68.8
Apr 27 05:59:15 ourumov-web sshd\[8453\]: Failed password for invalid user test3 from 197.159.68.8 port 46521 ssh2
...
2020-04-27 12:45:13
104.131.167.203 attack
$f2bV_matches
2020-04-27 12:33:33
106.13.86.54 attackspam
Apr 27 04:50:30 scw-6657dc sshd[30702]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.86.54
Apr 27 04:50:30 scw-6657dc sshd[30702]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.86.54
Apr 27 04:50:32 scw-6657dc sshd[30702]: Failed password for invalid user admin from 106.13.86.54 port 36950 ssh2
...
2020-04-27 12:52:56

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