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: Sweden

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 <<>> 164.4.81.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 57177
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;164.4.81.21.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025012902 1800 900 604800 86400

;; Query time: 12 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Jan 30 11:41:04 CST 2025
;; MSG SIZE  rcvd: 104
Host info
Host 21.81.4.164.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.81.4.164.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
5.135.161.7 attackbotsspam
Feb 28 01:17:45 Ubuntu-1404-trusty-64-minimal sshd\[24477\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.135.161.7  user=root
Feb 28 01:17:46 Ubuntu-1404-trusty-64-minimal sshd\[24477\]: Failed password for root from 5.135.161.7 port 58259 ssh2
Feb 28 01:43:20 Ubuntu-1404-trusty-64-minimal sshd\[9335\]: Invalid user kamal from 5.135.161.7
Feb 28 01:43:20 Ubuntu-1404-trusty-64-minimal sshd\[9335\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.135.161.7
Feb 28 01:43:22 Ubuntu-1404-trusty-64-minimal sshd\[9335\]: Failed password for invalid user kamal from 5.135.161.7 port 55300 ssh2
2020-02-28 08:59:57
210.12.49.162 attackbotsspam
Invalid user couchdb from 210.12.49.162 port 40457
2020-02-28 09:14:22
222.186.169.194 attack
Feb 28 01:49:25 eventyay sshd[3671]: Failed password for root from 222.186.169.194 port 34966 ssh2
Feb 28 01:49:28 eventyay sshd[3671]: Failed password for root from 222.186.169.194 port 34966 ssh2
Feb 28 01:49:32 eventyay sshd[3671]: Failed password for root from 222.186.169.194 port 34966 ssh2
Feb 28 01:49:35 eventyay sshd[3671]: Failed password for root from 222.186.169.194 port 34966 ssh2
Feb 28 01:49:38 eventyay sshd[3671]: Failed password for root from 222.186.169.194 port 34966 ssh2
Feb 28 01:49:38 eventyay sshd[3671]: error: maximum authentication attempts exceeded for root from 222.186.169.194 port 34966 ssh2 [preauth]
...
2020-02-28 08:56:59
217.92.21.82 attack
Invalid user pt from 217.92.21.82 port 47279
2020-02-28 09:13:29
223.15.205.56 attackbotsspam
MultiHost/MultiPort Probe, Scan, Hack -
2020-02-28 09:12:17
177.194.166.182 attackbots
Unauthorized connection attempt from IP address 177.194.166.182 on Port 445(SMB)
2020-02-28 09:07:53
1.0.225.250 attackbotsspam
Unauthorized connection attempt from IP address 1.0.225.250 on Port 445(SMB)
2020-02-28 08:49:18
188.168.207.63 attackspam
Unauthorized connection attempt from IP address 188.168.207.63 on Port 445(SMB)
2020-02-28 08:46:22
223.15.223.199 attackspambots
MultiHost/MultiPort Probe, Scan, Hack -
2020-02-28 09:06:32
210.212.145.100 attackbots
Unauthorized connection attempt from IP address 210.212.145.100 on Port 445(SMB)
2020-02-28 08:47:48
183.82.127.82 attack
Unauthorized connection attempt from IP address 183.82.127.82 on Port 445(SMB)
2020-02-28 08:51:43
210.209.123.117 attack
Total attacks: 2
2020-02-28 09:14:00
14.215.95.5 attackspambots
firewall-block, port(s): 15926/tcp
2020-02-28 08:35:12
54.36.150.136 attackbots
ece-2 : Block REQUEST_URI=>/calendrier/detailevenement/236/10,11,19,23/cso-plessis-bouchard(,)
2020-02-28 08:53:53
49.145.201.57 attack
Unauthorized connection attempt from IP address 49.145.201.57 on Port 445(SMB)
2020-02-28 08:46:09

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