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 <<>> 104.21.54.243
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 47864
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.54.243.			IN	A

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

;; Query time: 238 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:36:52 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 243.54.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 243.54.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
167.99.170.91 attackspam
2020-08-17T21:11:40.595469shield sshd\[10278\]: Invalid user simone from 167.99.170.91 port 58730
2020-08-17T21:11:40.607932shield sshd\[10278\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.99.170.91
2020-08-17T21:11:42.525793shield sshd\[10278\]: Failed password for invalid user simone from 167.99.170.91 port 58730 ssh2
2020-08-17T21:15:46.215910shield sshd\[10820\]: Invalid user david from 167.99.170.91 port 39696
2020-08-17T21:15:46.225008shield sshd\[10820\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.99.170.91
2020-08-18 05:27:16
118.25.142.138 attackbotsspam
Aug 17 23:27:11 hosting sshd[20161]: Invalid user dst from 118.25.142.138 port 54298
...
2020-08-18 05:42:28
59.27.124.26 attackbots
Aug 17 21:28:15 scw-6657dc sshd[14410]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=59.27.124.26
Aug 17 21:28:15 scw-6657dc sshd[14410]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=59.27.124.26
Aug 17 21:28:18 scw-6657dc sshd[14410]: Failed password for invalid user apacher from 59.27.124.26 port 58666 ssh2
...
2020-08-18 05:34:51
63.83.76.47 attackbotsspam
Aug 17 21:48:35 online-web-1 postfix/smtpd[1736521]: connect from fetal.bicharter.com[63.83.76.47]
Aug x@x
Aug 17 21:48:41 online-web-1 postfix/smtpd[1736521]: disconnect from fetal.bicharter.com[63.83.76.47] ehlo=1 mail=1 rcpt=0/1 data=0/1 quhostname=1 commands=3/5
Aug 17 21:49:00 online-web-1 postfix/smtpd[1739765]: connect from fetal.bicharter.com[63.83.76.47]
Aug x@x
Aug 17 21:49:06 online-web-1 postfix/smtpd[1739765]: disconnect from fetal.bicharter.com[63.83.76.47] ehlo=1 mail=1 rcpt=0/1 data=0/1 quhostname=1 commands=3/5
Aug 17 21:52:07 online-web-1 postfix/smtpd[1736521]: connect from fetal.bicharter.com[63.83.76.47]
Aug 17 21:52:12 online-web-1 postfix/smtpd[1737087]: connect from fetal.bicharter.com[63.83.76.47]
Aug x@x
Aug 17 21:52:13 online-web-1 postfix/smtpd[1736521]: disconnect from fetal.bicharter.com[63.83.76.47] ehlo=1 mail=1 rcpt=0/1 data=0/1 quhostname=1 commands=3/5
Aug x@x
Aug 17 21:52:18 online-web-1 postfix/smtpd[1737087]: disconnect from fetal.b........
-------------------------------
2020-08-18 05:26:14
134.209.24.61 attack
Aug 17 23:34:54 vps639187 sshd\[1327\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.209.24.61  user=root
Aug 17 23:34:56 vps639187 sshd\[1327\]: Failed password for root from 134.209.24.61 port 53868 ssh2
Aug 17 23:38:36 vps639187 sshd\[1403\]: Invalid user john from 134.209.24.61 port 34942
Aug 17 23:38:36 vps639187 sshd\[1403\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.209.24.61
...
2020-08-18 05:39:09
189.187.49.182 attackspam
Aug 17 23:03:06 electroncash sshd[48285]: Invalid user ftpuser from 189.187.49.182 port 13864
Aug 17 23:03:06 electroncash sshd[48285]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.187.49.182 
Aug 17 23:03:06 electroncash sshd[48285]: Invalid user ftpuser from 189.187.49.182 port 13864
Aug 17 23:03:08 electroncash sshd[48285]: Failed password for invalid user ftpuser from 189.187.49.182 port 13864 ssh2
Aug 17 23:05:58 electroncash sshd[48999]: Invalid user edge from 189.187.49.182 port 16775
...
2020-08-18 05:26:27
111.72.196.226 attackspambots
Aug 17 22:23:22 srv01 postfix/smtpd\[25263\]: warning: unknown\[111.72.196.226\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 17 22:26:51 srv01 postfix/smtpd\[1546\]: warning: unknown\[111.72.196.226\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 17 22:27:02 srv01 postfix/smtpd\[1546\]: warning: unknown\[111.72.196.226\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 17 22:27:18 srv01 postfix/smtpd\[1546\]: warning: unknown\[111.72.196.226\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 17 22:27:36 srv01 postfix/smtpd\[1546\]: warning: unknown\[111.72.196.226\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2020-08-18 05:28:16
192.241.202.169 attack
Aug 17 14:45:33 mockhub sshd[20860]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.241.202.169
Aug 17 14:45:35 mockhub sshd[20860]: Failed password for invalid user test from 192.241.202.169 port 51576 ssh2
...
2020-08-18 05:48:05
66.96.228.119 attackbots
2020-08-17T20:21:59.672346abusebot-3.cloudsearch.cf sshd[28157]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=66.96.228.119  user=root
2020-08-17T20:22:01.685447abusebot-3.cloudsearch.cf sshd[28157]: Failed password for root from 66.96.228.119 port 50538 ssh2
2020-08-17T20:24:59.799716abusebot-3.cloudsearch.cf sshd[28203]: Invalid user red from 66.96.228.119 port 42558
2020-08-17T20:24:59.806353abusebot-3.cloudsearch.cf sshd[28203]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=66.96.228.119
2020-08-17T20:24:59.799716abusebot-3.cloudsearch.cf sshd[28203]: Invalid user red from 66.96.228.119 port 42558
2020-08-17T20:25:01.528548abusebot-3.cloudsearch.cf sshd[28203]: Failed password for invalid user red from 66.96.228.119 port 42558 ssh2
2020-08-17T20:27:54.890781abusebot-3.cloudsearch.cf sshd[28253]: Invalid user songlin from 66.96.228.119 port 34574
...
2020-08-18 05:16:52
212.64.77.173 attackspam
Aug 17 22:16:29 rocket sshd[7363]: Failed password for root from 212.64.77.173 port 51054 ssh2
Aug 17 22:20:28 rocket sshd[7974]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.64.77.173
...
2020-08-18 05:35:22
108.162.219.26 attackbotsspam
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2020-08-18 05:56:19
104.236.63.99 attackspambots
2020-08-18T00:19:40.557353lavrinenko.info sshd[22895]: Invalid user faisal from 104.236.63.99 port 43948
2020-08-18T00:19:40.565183lavrinenko.info sshd[22895]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.236.63.99
2020-08-18T00:19:40.557353lavrinenko.info sshd[22895]: Invalid user faisal from 104.236.63.99 port 43948
2020-08-18T00:19:42.713206lavrinenko.info sshd[22895]: Failed password for invalid user faisal from 104.236.63.99 port 43948 ssh2
2020-08-18T00:22:47.720114lavrinenko.info sshd[22957]: Invalid user transfer from 104.236.63.99 port 49282
...
2020-08-18 05:25:02
37.59.48.181 attack
Aug 17 23:54:53 hosting sshd[22606]: Invalid user test from 37.59.48.181 port 60002
Aug 17 23:54:53 hosting sshd[22606]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=ns3001311.ip-37-59-48.eu
Aug 17 23:54:53 hosting sshd[22606]: Invalid user test from 37.59.48.181 port 60002
Aug 17 23:54:55 hosting sshd[22606]: Failed password for invalid user test from 37.59.48.181 port 60002 ssh2
Aug 18 00:06:54 hosting sshd[24313]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=ns3001311.ip-37-59-48.eu  user=root
Aug 18 00:06:56 hosting sshd[24313]: Failed password for root from 37.59.48.181 port 60286 ssh2
...
2020-08-18 05:44:17
101.78.209.26 attackbots
Lines containing failures of 101.78.209.26
Aug 17 15:56:16 newdogma sshd[16118]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.78.209.26  user=r.r
Aug 17 15:56:18 newdogma sshd[16118]: Failed password for r.r from 101.78.209.26 port 32357 ssh2
Aug 17 15:56:22 newdogma sshd[16118]: Failed password for r.r from 101.78.209.26 port 32357 ssh2
Aug 17 15:56:26 newdogma sshd[16118]: Failed password for r.r from 101.78.209.26 port 32357 ssh2
Aug 17 15:56:29 newdogma sshd[16118]: Failed password for r.r from 101.78.209.26 port 32357 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=101.78.209.26
2020-08-18 05:37:41
111.229.101.155 attackbotsspam
Aug 17 14:01:22 mockhub sshd[18871]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.229.101.155
Aug 17 14:01:24 mockhub sshd[18871]: Failed password for invalid user alex from 111.229.101.155 port 46298 ssh2
...
2020-08-18 05:45:28

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