Apache internal dummy connections

They are an internal Apache mechanism used for things like creating new child processes. They are nothing for you to worry about.

There is a way to do it in your httpd.conf file. You probably have this line:

CustomLog "logs/access_log" combined

Change it to this:

SetEnvIf Remote_Addr "127\.0\.0\.1" dontlog CustomLog "logs/access_log" combined env=!dontlog

Source: https://www.electrictoolbox.com/apache-stop-logging-internal-dummy-connection/