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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.39.83
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 1290
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.39.83.			IN	A

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

;; Query time: 20 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:27:52 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 83.39.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 83.39.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
129.28.187.169 attackspam
Aug  5 22:56:19 ns381471 sshd[15957]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.28.187.169
Aug  5 22:56:21 ns381471 sshd[15957]: Failed password for invalid user !@#qwe!@# from 129.28.187.169 port 53470 ssh2
2020-08-06 08:10:13
202.88.237.15 attackbots
Ssh brute force
2020-08-06 08:13:05
45.76.138.123 attackbotsspam
(pop3d) Failed POP3 login from 45.76.138.123 (GB/United Kingdom/45.76.138.123.vultr.com): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: Aug  6 01:06:33 ir1 dovecot[3110802]: pop3-login: Disconnected (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=45.76.138.123, lip=5.63.12.44, session=
2020-08-06 08:20:40
54.162.127.241 attackspambots
Fail2Ban Ban Triggered
2020-08-06 08:39:46
190.121.5.210 attackbotsspam
SSH brute-force attempt
2020-08-06 08:30:48
114.242.24.153 attackbotsspam
Aug  5 17:33:42 firewall sshd[25393]: Failed password for root from 114.242.24.153 port 45110 ssh2
Aug  5 17:36:58 firewall sshd[25500]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=114.242.24.153  user=root
Aug  5 17:37:00 firewall sshd[25500]: Failed password for root from 114.242.24.153 port 38972 ssh2
...
2020-08-06 08:07:55
111.231.226.68 attackbotsspam
Aug  5 22:30:20 serwer sshd\[19575\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.231.226.68  user=root
Aug  5 22:30:23 serwer sshd\[19575\]: Failed password for root from 111.231.226.68 port 51726 ssh2
Aug  5 22:36:38 serwer sshd\[20191\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.231.226.68  user=root
...
2020-08-06 08:17:20
123.207.92.254 attack
Aug  5 23:38:41 * sshd[4788]: Failed password for root from 123.207.92.254 port 60674 ssh2
2020-08-06 08:37:47
125.227.236.60 attackbotsspam
Brute-force attempt banned
2020-08-06 08:09:22
81.213.59.71 attackspambots
 TCP (SYN) 81.213.59.71:17670 -> port 23, len 44
2020-08-06 08:18:32
180.149.126.13 attackspambots
" "
2020-08-06 08:05:43
49.88.112.69 attackspam
Aug  6 02:07:57 vps sshd[445491]: Failed password for root from 49.88.112.69 port 41326 ssh2
Aug  6 02:07:59 vps sshd[445491]: Failed password for root from 49.88.112.69 port 41326 ssh2
Aug  6 02:08:02 vps sshd[445491]: Failed password for root from 49.88.112.69 port 41326 ssh2
Aug  6 02:09:01 vps sshd[450028]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.69  user=root
Aug  6 02:09:03 vps sshd[450028]: Failed password for root from 49.88.112.69 port 55105 ssh2
...
2020-08-06 08:26:20
190.145.12.233 attackbotsspam
2020-08-05T18:52:51.0630121495-001 sshd[56220]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.145.12.233  user=root
2020-08-05T18:52:53.1728061495-001 sshd[56220]: Failed password for root from 190.145.12.233 port 44386 ssh2
2020-08-05T18:55:42.9418021495-001 sshd[56392]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.145.12.233  user=root
2020-08-05T18:55:45.5277231495-001 sshd[56392]: Failed password for root from 190.145.12.233 port 34682 ssh2
2020-08-05T18:58:33.7769341495-001 sshd[56481]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.145.12.233  user=root
2020-08-05T18:58:35.8361521495-001 sshd[56481]: Failed password for root from 190.145.12.233 port 53208 ssh2
...
2020-08-06 08:11:26
218.78.26.250 attack
Port Scan
...
2020-08-06 08:38:52
142.93.130.58 attackbots
firewall-block, port(s): 9578/tcp
2020-08-06 08:27:50

Recently Reported IPs

104.21.39.85 104.21.39.9 104.21.39.89 104.21.39.93
104.21.39.87 104.21.4.101 104.21.4.107 104.21.39.94
104.21.4.113 104.21.4.115 104.21.4.120 104.21.4.122
104.21.4.12 104.21.4.128 104.21.4.129 104.21.69.243
104.21.4.140 104.21.4.135 104.21.4.130 104.21.4.137