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 <<>> 104.21.83.18
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 12922
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.83.18.			IN	A

;; AUTHORITY SECTION:
.			1	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 67 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:04:48 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 18.83.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 18.83.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
82.76.125.43 attackbotsspam
unauthorized connection attempt
2020-01-08 19:33:13
112.33.253.165 attackspambots
2020-01-05T18:01:34.8756901495-001 sshd[53250]: Invalid user test from 112.33.253.165 port 47732
2020-01-05T18:01:34.8786161495-001 sshd[53250]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.33.253.165
2020-01-05T18:01:34.8756901495-001 sshd[53250]: Invalid user test from 112.33.253.165 port 47732
2020-01-05T18:01:37.6173251495-001 sshd[53250]: Failed password for invalid user test from 112.33.253.165 port 47732 ssh2
2020-01-05T18:12:10.4942901495-001 sshd[53697]: Invalid user maven from 112.33.253.165 port 48020
2020-01-05T18:12:10.4972511495-001 sshd[53697]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.33.253.165
2020-01-05T18:12:10.4942901495-001 sshd[53697]: Invalid user maven from 112.33.253.165 port 48020
2020-01-05T18:12:12.8841201495-001 sshd[53697]: Failed password for invalid user maven from 112.33.253.165 port 48020 ssh2
2020-01-05T18:16:07.0672901495-001 sshd[53814]: ........
------------------------------
2020-01-08 18:55:04
187.188.251.219 attack
Jan  8 09:29:42 mail sshd\[26692\]: Invalid user user0 from 187.188.251.219
Jan  8 09:29:42 mail sshd\[26692\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=187.188.251.219
Jan  8 09:29:44 mail sshd\[26692\]: Failed password for invalid user user0 from 187.188.251.219 port 36666 ssh2
...
2020-01-08 19:07:48
36.68.52.206 attack
unauthorized connection attempt
2020-01-08 19:16:25
117.31.76.86 attackspam
2020-01-07 22:46:53 dovecot_login authenticator failed for (nezbv) [117.31.76.86]:58890 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=liutingting@lerctr.org)
2020-01-07 22:47:01 dovecot_login authenticator failed for (tdbrb) [117.31.76.86]:58890 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=liutingting@lerctr.org)
2020-01-07 22:47:13 dovecot_login authenticator failed for (jdycy) [117.31.76.86]:58890 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=liutingting@lerctr.org)
...
2020-01-08 19:04:31
5.135.146.51 attackspam
ssh brute force
2020-01-08 18:56:08
222.252.214.144 attack
Unauthorized connection attempt from IP address 222.252.214.144 on Port 445(SMB)
2020-01-08 19:02:19
69.94.156.6 attackbots
Jan  8 05:47:09 grey postfix/smtpd\[27038\]: NOQUEUE: reject: RCPT from dust.nabhaa.com\[69.94.156.6\]: 554 5.7.1 Service unavailable\; Client host \[69.94.156.6\] blocked using truncate.gbudb.net\; http://www.gbudb.com/truncate/ \[69.94.156.6\]\; from=\ to=\ proto=ESMTP helo=\
...
2020-01-08 19:06:45
202.29.39.1 attackspam
2020-01-08T10:39:54.843628struts4.enskede.local sshd\[10344\]: Invalid user cacti from 202.29.39.1 port 34778
2020-01-08T10:39:54.851351struts4.enskede.local sshd\[10344\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=202.29.39.1
2020-01-08T10:39:56.489044struts4.enskede.local sshd\[10344\]: Failed password for invalid user cacti from 202.29.39.1 port 34778 ssh2
2020-01-08T10:42:04.161607struts4.enskede.local sshd\[10346\]: Invalid user jboss from 202.29.39.1 port 54760
2020-01-08T10:42:04.171140struts4.enskede.local sshd\[10346\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=202.29.39.1
...
2020-01-08 19:19:01
144.131.134.105 attackbots
Unauthorized connection attempt detected from IP address 144.131.134.105 to port 2220 [J]
2020-01-08 19:25:20
2a01:4f8:110:504c::2 attackspambots
[WedJan0805:46:57.8545262020][:error][pid24066:tid47392706090752][client2a01:4f8:110:504c::2:51602][client2a01:4f8:110:504c::2]ModSecurity:Accessdeniedwithcode403\(phase2\).Patternmatch"MJ12bot"atREQUEST_HEADERS:User-Agent.[file"/usr/local/apache.ea3/conf/modsec_rules/20_asl_useragents.conf"][line"380"][id"333515"][rev"4"][msg"Atomicorp.comWAFRules:MJ12Distributedbotdetected\(Disablethisruleifyouwanttoallowthisbot\)"][severity"WARNING"][tag"no_ar"][hostname"www.inerta.eu"][uri"/robots.txt"][unique_id"XhVewcGi6a46QEChdwwaUwAAAIo"][WedJan0805:46:58.3187162020][:error][pid24340:tid47392733406976][client2a01:4f8:110:504c::2:51914][client2a01:4f8:110:504c::2]ModSecurity:Accessdeniedwithcode403\(phase2\).Patternmatch"MJ12bot"atREQUEST_HEADERS:User-Agent.[file"/usr/local/apache.ea3/conf/modsec_rules/20_asl_useragents.conf"][line"380"][id"333515"][rev"4"][msg"Atomicorp.comWAFRules:MJ12Distributedbotdetected\(Disablethisruleifyouwanttoallowthisbot\)"][severity"WARNING"][tag"no_ar"
2020-01-08 19:11:26
124.6.158.62 attackbotsspam
01/08/2020-05:47:18.904810 124.6.158.62 Protocol: 6 ET SCAN Suspicious inbound to MSSQL port 1433
2020-01-08 18:59:25
124.205.133.66 attack
2020-01-06T04:44:20.186579***.arvenenaske.de sshd[53168]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.205.133.66  user=r.r
2020-01-06T04:44:21.728890***.arvenenaske.de sshd[53168]: Failed password for r.r from 124.205.133.66 port 37011 ssh2
2020-01-06T04:55:56.408890***.arvenenaske.de sshd[53178]: Invalid user gbj from 124.205.133.66 port 11528
2020-01-06T04:55:56.415201***.arvenenaske.de sshd[53178]: pam_sss(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.205.133.66 user=gbj
2020-01-06T04:55:56.416088***.arvenenaske.de sshd[53178]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.205.133.66
2020-01-06T04:55:56.408890***.arvenenaske.de sshd[53178]: Invalid user gbj from 124.205.133.66 port 11528
2020-01-06T04:55:57.837923***.arvenenaske.de sshd[53178]: Failed password for invalid user gbj from 124.205.133.66 port 11528 ssh2
2020-01-06T04:58:56.130........
------------------------------
2020-01-08 19:25:51
42.119.46.237 attackspambots
Unauthorized connection attempt from IP address 42.119.46.237 on Port 445(SMB)
2020-01-08 19:26:12
171.237.92.189 attackbotsspam
Unauthorized connection attempt from IP address 171.237.92.189 on Port 445(SMB)
2020-01-08 19:24:38

Recently Reported IPs

104.21.83.183 104.21.83.186 104.21.83.187 104.21.83.188
104.21.83.191 104.21.83.192 104.21.83.194 104.21.83.197
104.21.83.20 104.21.83.199 104.21.83.200 104.21.83.201
104.21.83.203 104.21.83.204 104.21.83.2 104.21.83.205
104.21.83.208 104.21.83.207 104.21.83.210 104.21.83.209