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 of America (the)

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 <<>> 162.243.53.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 12834
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;162.243.53.21.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025021400 1800 900 604800 86400

;; Query time: 11 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 14 18:30:30 CST 2025
;; MSG SIZE  rcvd: 106
Host info
Host 21.53.243.162.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.53.243.162.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
128.106.136.112 attack
 TCP (SYN) 128.106.136.112:17574 -> port 23, len 44
2020-10-08 05:42:17
112.85.42.81 attackspambots
Oct  7 23:33:53 santamaria sshd\[12106\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.81  user=root
Oct  7 23:33:55 santamaria sshd\[12106\]: Failed password for root from 112.85.42.81 port 7528 ssh2
Oct  7 23:34:13 santamaria sshd\[12108\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.81  user=root
...
2020-10-08 05:36:27
116.72.108.178 attackbots
 TCP (SYN) 116.72.108.178:48322 -> port 23, len 44
2020-10-08 05:53:16
138.197.66.68 attackbotsspam
$f2bV_matches
2020-10-08 05:54:27
69.172.78.17 attack
3x Failed Password
2020-10-08 05:56:49
159.203.66.114 attackbotsspam
2020-10-07T16:27:54.4652451495-001 sshd[18447]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.66.114  user=root
2020-10-07T16:27:56.1837661495-001 sshd[18447]: Failed password for root from 159.203.66.114 port 50780 ssh2
2020-10-07T16:31:40.4583251495-001 sshd[18668]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.66.114  user=root
2020-10-07T16:31:42.2072881495-001 sshd[18668]: Failed password for root from 159.203.66.114 port 56236 ssh2
2020-10-07T16:35:31.5633731495-001 sshd[18854]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.66.114  user=root
2020-10-07T16:35:33.3575381495-001 sshd[18854]: Failed password for root from 159.203.66.114 port 33462 ssh2
...
2020-10-08 05:39:03
197.5.145.69 attackbotsspam
SSH brute-force attack detected from [197.5.145.69]
2020-10-08 05:25:57
139.155.53.77 attackbotsspam
SSH/22 MH Probe, BF, Hack -
2020-10-08 05:45:43
88.88.254.234 attackspambots
Oct  6 08:17:59 ns sshd[24217]: Connection from 88.88.254.234 port 44021 on 134.119.36.27 port 22
Oct  6 08:17:59 ns sshd[24217]: User r.r from 88.88.254.234 not allowed because not listed in AllowUsers
Oct  6 08:17:59 ns sshd[24217]: Failed password for invalid user r.r from 88.88.254.234 port 44021 ssh2
Oct  6 08:17:59 ns sshd[24217]: Received disconnect from 88.88.254.234 port 44021:11: Bye Bye [preauth]
Oct  6 08:17:59 ns sshd[24217]: Disconnected from 88.88.254.234 port 44021 [preauth]
Oct  6 08:29:03 ns sshd[12520]: Connection from 88.88.254.234 port 54156 on 134.119.36.27 port 22
Oct  6 08:29:06 ns sshd[12520]: User r.r from 88.88.254.234 not allowed because not listed in AllowUsers
Oct  6 08:29:06 ns sshd[12520]: Failed password for invalid user r.r from 88.88.254.234 port 54156 ssh2
Oct  6 08:29:07 ns sshd[12520]: Received disconnect from 88.88.254.234 port 54156:11: Bye Bye [preauth]
Oct  6 08:29:07 ns sshd[12520]: Disconnected from 88.88.254.234 port 54156 [p........
-------------------------------
2020-10-08 05:47:00
193.169.253.118 attack
2020-10-07 14:07:12,669 fail2ban.actions        [1574]: NOTICE  [plesk-postfix] Ban 193.169.253.118
2020-10-07 14:59:52,043 fail2ban.actions        [1574]: NOTICE  [plesk-postfix] Ban 193.169.253.118
2020-10-07 15:52:23,096 fail2ban.actions        [1574]: NOTICE  [plesk-postfix] Ban 193.169.253.118
2020-10-07 16:45:13,323 fail2ban.actions        [1574]: NOTICE  [plesk-postfix] Ban 193.169.253.118
2020-10-07 17:37:43,568 fail2ban.actions        [1574]: NOTICE  [plesk-postfix] Ban 193.169.253.118
...
2020-10-08 05:42:46
200.146.196.100 attackbots
Oct  6 06:21:07 lola sshd[10274]: reveeclipse mapping checking getaddrinfo for 200-146-196-100.static.ctbctelecom.com.br [200.146.196.100] failed - POSSIBLE BREAK-IN ATTEMPT!
Oct  6 06:21:07 lola sshd[10274]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.146.196.100  user=r.r
Oct  6 06:21:09 lola sshd[10274]: Failed password for r.r from 200.146.196.100 port 35336 ssh2
Oct  6 06:21:09 lola sshd[10274]: Received disconnect from 200.146.196.100: 11: Bye Bye [preauth]
Oct  6 06:24:43 lola sshd[10351]: reveeclipse mapping checking getaddrinfo for 200-146-196-100.static.ctbctelecom.com.br [200.146.196.100] failed - POSSIBLE BREAK-IN ATTEMPT!
Oct  6 06:24:43 lola sshd[10351]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.146.196.100  user=r.r
Oct  6 06:24:45 lola sshd[10351]: Failed password for r.r from 200.146.196.100 port 53922 ssh2
Oct  6 06:24:45 lola sshd[10351]: Received disconn........
-------------------------------
2020-10-08 05:36:55
112.237.37.151 attackbots
Telnetd brute force attack detected by fail2ban
2020-10-08 05:23:06
157.55.39.175 attackspam
Automatic report - Banned IP Access
2020-10-08 05:34:28
81.70.20.28 attack
81.70.20.28 (CN/China/-), 6 distributed sshd attacks on account [root] in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_DISTATTACK; Logs: Oct  7 12:31:38 server2 sshd[8168]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.70.20.28  user=root
Oct  7 12:29:07 server2 sshd[6815]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.156.29.171  user=root
Oct  7 12:29:09 server2 sshd[6815]: Failed password for root from 37.156.29.171 port 49466 ssh2
Oct  7 12:29:40 server2 sshd[7110]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.62.248.24  user=root
Oct  7 12:29:42 server2 sshd[7110]: Failed password for root from 45.62.248.24 port 57682 ssh2
Oct  7 12:30:20 server2 sshd[7582]: Failed password for root from 51.38.238.205 port 43661 ssh2

IP Addresses Blocked:
2020-10-08 05:35:44
49.233.180.165 attack
Oct  7 20:54:52 host sshd[30719]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.233.180.165  user=root
Oct  7 20:54:54 host sshd[30719]: Failed password for root from 49.233.180.165 port 39298 ssh2
...
2020-10-08 05:45:05

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