If the hostname under which you are accessing the server is different than the hostname specified in the
ServerName directive, then depending on the setting of the
UseCanonicalName directive, Apache will redirect you to a new hostname when constructing self-referential URLs. This happens, for example, in the case where you request a directory without including the trailing
When this happens, Apache will ask for authentication once under the original hostname, perform the redirect, and then ask again under the new hostname. For security reasons, the browser must prompt again for the password when the host name changes.
To eliminate this problem you should
- Always use the trailing slash when requesting directories;
- Change the
ServerName to match the name you are using in the URL; and/or