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 <<>> 21.135.220.81
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 9116
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;21.135.220.81.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025020500 1800 900 604800 86400

;; Query time: 9 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Wed Feb 05 19:24:29 CST 2025
;; MSG SIZE  rcvd: 106
Host info
Host 81.220.135.21.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 81.220.135.21.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
49.235.99.57 attackbotsspam
Port scan on 4 port(s): 2375 2376 2377 4243
2019-12-06 14:14:10
118.25.36.79 attack
Dec  6 07:03:44 * sshd[26490]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.25.36.79
Dec  6 07:03:46 * sshd[26490]: Failed password for invalid user test from 118.25.36.79 port 58378 ssh2
2019-12-06 14:19:49
172.69.63.222 attackspam
Automated report (2019-12-06T04:58:24+00:00). Scraper detected at this address.
2019-12-06 14:25:30
211.75.194.80 attackspam
Dec  6 00:58:12 plusreed sshd[11673]: Invalid user lighttpd from 211.75.194.80
...
2019-12-06 14:02:35
129.204.37.54 attackspambots
Dec  6 06:46:27 vps666546 sshd\[20794\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.204.37.54  user=root
Dec  6 06:46:29 vps666546 sshd\[20794\]: Failed password for root from 129.204.37.54 port 50082 ssh2
Dec  6 06:53:18 vps666546 sshd\[21107\]: Invalid user notebook from 129.204.37.54 port 58020
Dec  6 06:53:18 vps666546 sshd\[21107\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.204.37.54
Dec  6 06:53:20 vps666546 sshd\[21107\]: Failed password for invalid user notebook from 129.204.37.54 port 58020 ssh2
...
2019-12-06 13:59:09
47.40.20.138 attackspambots
Dec  6 06:00:07 h2177944 sshd\[2119\]: Invalid user ahalieia from 47.40.20.138 port 56044
Dec  6 06:00:07 h2177944 sshd\[2119\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=47.40.20.138
Dec  6 06:00:09 h2177944 sshd\[2119\]: Failed password for invalid user ahalieia from 47.40.20.138 port 56044 ssh2
Dec  6 06:08:05 h2177944 sshd\[2621\]: Invalid user gruetzmacher from 47.40.20.138 port 45622
Dec  6 06:08:05 h2177944 sshd\[2621\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=47.40.20.138
...
2019-12-06 14:06:50
190.152.19.62 attackspambots
postfix
2019-12-06 14:07:49
80.211.189.181 attack
SSH Brute-Force attacks
2019-12-06 14:23:20
51.68.115.235 attack
Dec  6 06:36:39 eventyay sshd[32182]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.115.235
Dec  6 06:36:41 eventyay sshd[32182]: Failed password for invalid user knochenhauer from 51.68.115.235 port 52896 ssh2
Dec  6 06:41:57 eventyay sshd[32372]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.68.115.235
...
2019-12-06 13:50:22
91.148.175.120 attackspambots
DATE:2019-12-06 05:59:03, IP:91.148.175.120, PORT:telnet - Telnet brute force auth on a honeypot server (epe-dc)
2019-12-06 13:46:54
222.186.175.182 attack
Dec  6 02:43:46 firewall sshd[25692]: Failed password for root from 222.186.175.182 port 60426 ssh2
Dec  6 02:43:46 firewall sshd[25692]: error: maximum authentication attempts exceeded for root from 222.186.175.182 port 60426 ssh2 [preauth]
Dec  6 02:43:46 firewall sshd[25692]: Disconnecting: Too many authentication failures [preauth]
...
2019-12-06 13:50:56
222.186.173.154 attackspambots
Dec  6 06:45:08 h2177944 sshd\[4514\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.154  user=root
Dec  6 06:45:11 h2177944 sshd\[4514\]: Failed password for root from 222.186.173.154 port 38706 ssh2
Dec  6 06:45:14 h2177944 sshd\[4514\]: Failed password for root from 222.186.173.154 port 38706 ssh2
Dec  6 06:45:17 h2177944 sshd\[4514\]: Failed password for root from 222.186.173.154 port 38706 ssh2
...
2019-12-06 13:51:27
45.55.238.20 attackspambots
...
2019-12-06 13:56:30
191.235.91.156 attackspambots
Dec  6 07:58:39 hosting sshd[22957]: Invalid user www from 191.235.91.156 port 58406
...
2019-12-06 14:10:20
116.87.33.16 attackbotsspam
firewall-block, port(s): 7547/tcp
2019-12-06 13:50:00

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