[mythtv-users] checkboxes in Mythweb not sticking

[chris at cpr.homelinux.net]

On Mon, Nov 07, 2005 at 10:26:42AM -0800, Chris Petersen wrote:
> >The reason I originally turned off UseCanonicalName was because (1)
> >it forces a redirect to the FQDN and therefore requires
> >authenticating twice,
> huh?  read what the term does.  All it does is tell the server to send
> the servername info to the client as is stated in the config file,
> rather than the one the browser sends in the virtual host request.

Before you can get that reply you have to authenticate (assuming you 
have a .htaccess rule blocking anonymous access to your mythweb 
installation, which is a REALLY good idea when your server is exposed 
to the rest of the planet).  After authenticating, the server sends 
back the canonical name.  The browser tosses the old credentials 
because they don't match the new hostname and you have to authenticate 
again.  Only after entering the password twice do you get to the actual 
php scripts.  With UseCanonicalName off, the server replies using 
whatever server name the client specified and the second login is not 
required.  The solution *is* simple -- always use the lengthy public 
URL rather than the local hostname.  The only time it's really 
inconvenient is when I'm using lynx, since it doesn't have bookmarks 
and doesn't save passwords.

> >and (2) it means everything going to the server has to pass through
> >the router twice.
> again, huh?

I do not alias my FQDN in /etc/hosts because I have a dynamic IP 
address and want to know that the dynamic DNS is resolving correctly.  
After http://localhost/mythweb gets redirected to 
http://my.long.url/mythweb/status.php, all further access to the server 
is via the gateway's external IP address.  My server is not the 
gateway, so every packet has to traverse the lan to the gateway, where 
it is then forwarded back to the myth server.  It's not a big deal for 
web pages, but a waste of bandwidth if I'm streaming multimedia files 
from the server to a machine on the local subnet.