Single dot ip address/hostname in visitor log

[buddster]

Website visitor log is showing six instances reflected as only a single dot in the ip address/hostname field (Apache, cPanel Linux, PHP 7.1 on shared host). Same user agent ("Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36") and GET requests for six different single web pages in the six instances on four dates within the past month. Shared hosting technical support could only speculate the single dot was a cPanel glitch handling a proxy request.

Shouldn't the request be refused if Remote_Addr or Remote_Host cannot be identified? Any other possible explanations? Suggestions for .htaccess code to block a single-dot ip address or hostname?

 

[cPanelMichael]

Hello,

Could you ask your provider to open a support ticket using the link in my signature so we can take a closer look at the environment of the affected system to see why the correct IP address isn't recorded? Feel free to post the ticket number here and we can update this thread with the outcome.

Thank you.