138.209.16.21 - IPInfo

Basic Info

City: unknown

Region: unknown

Country: United States of America (the)

Internet Service Provider: unknown

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:

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Whois info:

Dig info:

; <<>> DiG 9.10.3-P4-Ubuntu <<>> 138.209.16.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 23204
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;138.209.16.21.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025021200 1800 900 604800 86400

;; Query time: 67 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Wed Feb 12 18:35:47 CST 2025
;; MSG SIZE  rcvd: 106

Host info

Host 21.16.209.138.in-addr.arpa not found: 2(SERVFAIL)

Nslookup info:

;; Got SERVFAIL reply from 183.60.83.19, trying next server
Server:		183.60.82.98
Address:	183.60.82.98#53

** server can't find 21.16.209.138.in-addr.arpa: SERVFAIL

Related IP info:

Related comments:

IP	Type	Details	Datetime
185.147.215.12	attackspambots	[2020-08-26 06:39:31] NOTICE[1185] chan_sip.c: Registration from '' failed for '185.147.215.12:55144' - Wrong password [2020-08-26 06:39:31] SECURITY[1203] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-08-26T06:39:31.160-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="6098",SessionID="0x7f10c42b6218",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.147.215.12/55144",Challenge="37cb5a24",ReceivedChallenge="37cb5a24",ReceivedHash="c7d7d298c7828cbf9e05fa5466a51255" [2020-08-26 06:39:52] NOTICE[1185] chan_sip.c: Registration from '' failed for '185.147.215.12:50769' - Wrong password [2020-08-26 06:39:52] SECURITY[1203] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-08-26T06:39:52.769-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="9602",SessionID="0x7f10c43e3a48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.147.21 ...	2020-08-26 18:58:37
184.179.216.156	attackspambots	2020-08-25 17:17 Unauthorized connection attempt to IMAP/POP	2020-08-26 18:30:07
177.53.165.108	attackspambots	Autoban 177.53.165.108 AUTH/CONNECT	2020-08-26 18:56:10
192.241.219.66	attack	port scan and connect, tcp 3306 (mysql)	2020-08-26 18:48:14
35.204.167.87	attackspam	Port scan denied	2020-08-26 19:00:04
186.226.216.104	attackbotsspam	srvr2: (mod_security) mod_security (id:920350) triggered by 186.226.216.104 (BR/-/static-104-216-226-186.8bit.net.br): 1 in the last 600 secs; Ports: ; Direction: inout; Trigger: LF_MODSEC; Logs: 2020/08/26 05:50:19 [error] 125640#0: 142698 [client 186.226.216.104] ModSecurity: Access denied with code 406 (phase 2). Matched "Operator `Rx' with parameter `^[\d.:]+$' against variable `REQUEST_HEADERS:Host' [redacted] [file "/etc/modsecurity.d/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "718"] [id "920350"] [rev ""] [msg "Host header is a numeric IP address"] [redacted] [severity "4"] [ver "OWASP_CRS/3.3.0"] [maturity "0"] [accuracy "0"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-protocol"] [tag "paranoia-level/1"] [tag "OWASP_CRS"] [tag "capec/1000/210/272"] [tag "PCI/6.5.10"] [redacted] [uri "/"] [unique_id "159841381924.516445"] [ref "o0,15v21,15"], client: 186.226.216.104, [redacted] request: "GET / HTTP/1.1" [redacted]	2020-08-26 18:42:08
37.140.152.228	attack	(mod_security) mod_security (id:210740) triggered by 37.140.152.228 (GB/United Kingdom/37-140-152-228.s.yandex.com): 5 in the last 3600 secs	2020-08-26 18:33:02
201.55.198.111	attack	Aug 26 12:46:29 ift sshd\[57711\]: Invalid user arun from 201.55.198.111Aug 26 12:46:31 ift sshd\[57711\]: Failed password for invalid user arun from 201.55.198.111 port 55046 ssh2Aug 26 12:51:11 ift sshd\[58384\]: Invalid user video from 201.55.198.111Aug 26 12:51:13 ift sshd\[58384\]: Failed password for invalid user video from 201.55.198.111 port 36502 ssh2Aug 26 12:55:57 ift sshd\[59144\]: Invalid user mc3 from 201.55.198.111 ...	2020-08-26 18:29:01
180.76.242.204	attackbotsspam	Aug 26 08:24:11 [host] sshd[28054]: Invalid user r Aug 26 08:24:11 [host] sshd[28054]: pam_unix(sshd: Aug 26 08:24:14 [host] sshd[28054]: Failed passwor	2020-08-26 18:23:13
37.140.152.225	attackspam	(mod_security) mod_security (id:210740) triggered by 37.140.152.225 (GB/United Kingdom/37-140-152-225.s.yandex.com): 5 in the last 3600 secs	2020-08-26 18:46:16
46.101.165.62	attackspambots	Invalid user tomcat from 46.101.165.62 port 42136	2020-08-26 18:36:13
118.89.219.116	attackspambots	Aug 26 11:56:05 meumeu sshd[346913]: Invalid user sysadmin from 118.89.219.116 port 47198 Aug 26 11:56:05 meumeu sshd[346913]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.89.219.116 Aug 26 11:56:05 meumeu sshd[346913]: Invalid user sysadmin from 118.89.219.116 port 47198 Aug 26 11:56:06 meumeu sshd[346913]: Failed password for invalid user sysadmin from 118.89.219.116 port 47198 ssh2 Aug 26 11:59:36 meumeu sshd[347181]: Invalid user test1 from 118.89.219.116 port 35366 Aug 26 11:59:36 meumeu sshd[347181]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.89.219.116 Aug 26 11:59:36 meumeu sshd[347181]: Invalid user test1 from 118.89.219.116 port 35366 Aug 26 11:59:38 meumeu sshd[347181]: Failed password for invalid user test1 from 118.89.219.116 port 35366 ssh2 Aug 26 12:03:08 meumeu sshd[347616]: Invalid user deploy from 118.89.219.116 port 51764 ...	2020-08-26 18:54:39
195.54.160.183	attack	[MK-VM6] SSH login failed	2020-08-26 18:39:16
185.175.93.37	attack	" "	2020-08-26 18:55:45
185.142.239.16	attackspambots	Port probe and connect to SMTP:25. IP blocked.	2020-08-26 18:50:40

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