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: None

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 <<>> 104.21.56.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 20818
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.56.21.			IN	A

;; AUTHORITY SECTION:
.			496	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 14 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:13:45 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 21.56.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.56.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
178.62.64.107 attackspam
Sep 24 12:33:43 ny01 sshd[14991]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.62.64.107
Sep 24 12:33:45 ny01 sshd[14991]: Failed password for invalid user alenda from 178.62.64.107 port 53884 ssh2
Sep 24 12:37:59 ny01 sshd[15668]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.62.64.107
2019-09-25 04:36:41
142.93.172.64 attackspam
Sep 24 18:17:31 ns37 sshd[31703]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=142.93.172.64
2019-09-25 04:34:05
138.197.145.26 attack
Sep 24 17:52:18 lnxded63 sshd[26516]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.145.26
2019-09-25 04:29:00
40.68.230.43 attackspam
Sep 24 22:41:32 MK-Soft-VM6 sshd[25387]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=40.68.230.43 
Sep 24 22:41:34 MK-Soft-VM6 sshd[25387]: Failed password for invalid user admin from 40.68.230.43 port 56926 ssh2
...
2019-09-25 04:59:40
5.196.75.172 attack
Sep 24 20:05:33 SilenceServices sshd[29266]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.196.75.172
Sep 24 20:05:35 SilenceServices sshd[29266]: Failed password for invalid user !qaz@wsx from 5.196.75.172 port 60738 ssh2
Sep 24 20:09:58 SilenceServices sshd[30541]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.196.75.172
2019-09-25 04:28:03
61.12.76.82 attackbots
Lines containing failures of 61.12.76.82
Sep 23 05:01:06 shared04 sshd[21862]: Invalid user smmsp from 61.12.76.82 port 47044
Sep 23 05:01:06 shared04 sshd[21862]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=61.12.76.82
Sep 23 05:01:08 shared04 sshd[21862]: Failed password for invalid user smmsp from 61.12.76.82 port 47044 ssh2
Sep 23 05:01:09 shared04 sshd[21862]: Received disconnect from 61.12.76.82 port 47044:11: Bye Bye [preauth]
Sep 23 05:01:09 shared04 sshd[21862]: Disconnected from invalid user smmsp 61.12.76.82 port 47044 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=61.12.76.82
2019-09-25 05:04:36
104.250.108.94 attackspam
Sep 24 23:54:05 diego postfix/smtpd\[31603\]: warning: unknown\[104.250.108.94\]: SASL LOGIN authentication failed: authentication failure
...
2019-09-25 05:05:33
159.203.182.127 attack
Invalid user gituser from 159.203.182.127 port 54169
2019-09-25 05:05:17
43.227.68.71 attackbotsspam
Sep 24 08:30:52 kapalua sshd\[26028\]: Invalid user hadoop from 43.227.68.71
Sep 24 08:30:52 kapalua sshd\[26028\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=43.227.68.71
Sep 24 08:30:54 kapalua sshd\[26028\]: Failed password for invalid user hadoop from 43.227.68.71 port 36436 ssh2
Sep 24 08:33:30 kapalua sshd\[26322\]: Invalid user bash from 43.227.68.71
Sep 24 08:33:30 kapalua sshd\[26322\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=43.227.68.71
2019-09-25 05:11:32
167.86.109.29 attack
Sep 24 14:45:30 ip-172-31-62-245 sshd\[8341\]: Invalid user packer from 167.86.109.29\
Sep 24 14:45:32 ip-172-31-62-245 sshd\[8341\]: Failed password for invalid user packer from 167.86.109.29 port 36366 ssh2\
Sep 24 14:45:39 ip-172-31-62-245 sshd\[8343\]: Invalid user packer from 167.86.109.29\
Sep 24 14:45:41 ip-172-31-62-245 sshd\[8343\]: Failed password for invalid user packer from 167.86.109.29 port 41244 ssh2\
Sep 24 14:45:50 ip-172-31-62-245 sshd\[8345\]: Failed password for root from 167.86.109.29 port 46150 ssh2\
2019-09-25 05:09:02
129.28.196.92 attack
2019-09-24T05:35:35.034277suse-nuc sshd[3244]: Invalid user oracle from 129.28.196.92 port 58506
...
2019-09-25 04:45:45
144.217.91.86 attack
Sep 24 08:57:57 aiointranet sshd\[8494\]: Invalid user porno from 144.217.91.86
Sep 24 08:57:57 aiointranet sshd\[8494\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=144.217.91.86
Sep 24 08:57:59 aiointranet sshd\[8494\]: Failed password for invalid user porno from 144.217.91.86 port 54964 ssh2
Sep 24 09:02:09 aiointranet sshd\[8790\]: Invalid user pi from 144.217.91.86
Sep 24 09:02:09 aiointranet sshd\[8790\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=144.217.91.86
2019-09-25 04:31:26
218.64.148.111 attackbotsspam
Sep 24 15:24:20 aat-srv002 sshd[23032]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.64.148.111
Sep 24 15:24:22 aat-srv002 sshd[23032]: Failed password for invalid user user0 from 218.64.148.111 port 44583 ssh2
Sep 24 15:28:37 aat-srv002 sshd[23147]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.64.148.111
Sep 24 15:28:39 aat-srv002 sshd[23147]: Failed password for invalid user scanner from 218.64.148.111 port 32994 ssh2
...
2019-09-25 04:40:52
202.157.177.228 attackspambots
RDPBruteCAu24
2019-09-25 04:43:39
14.215.165.131 attackbots
Sep 24 17:57:08 server sshd\[3664\]: Invalid user GIT123 from 14.215.165.131 port 57348
Sep 24 17:57:09 server sshd\[3664\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.215.165.131
Sep 24 17:57:10 server sshd\[3664\]: Failed password for invalid user GIT123 from 14.215.165.131 port 57348 ssh2
Sep 24 18:01:33 server sshd\[12386\]: Invalid user uptime from 14.215.165.131 port 55608
Sep 24 18:01:33 server sshd\[12386\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.215.165.131
2019-09-25 04:39:16

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