[horde] Recommended Cache Settings

[Simon Brereton]

Hi

Now that I have Horde4 all up and running and seemingly stable, I thought I would turn on the caching.  When I did this in beta however, despite it being recommended, it rendered my install useless as I ended up with a white screen.  Now that I'm in production I wish not to replicate that. So, I'm here asking for recommended cache settings.  Currently I have:

$conf['cache']['default_lifetime'] = 86400;
$conf['cache']['params']['sub'] = 0;
$conf['cache']['driver'] = 'File';
$conf['cache']['compress'] = true;
$conf['cache']['use_memorycache'] = '';
$conf['cachecss'] = false;
$conf['cachejs'] = false;
$conf['cachethemes'] = false;

Particularly concerning is the warning:  Requires a configured Horde caching backend.

$conf[cache][params][dir] is currently empty - and I presume that needs to be filled in for caching to work at all - yes?

What do Horde devs and other users recommend?  The server is 64-bit debian, with 2 gigs of ram, running postfix, dovecot, apache2 and bind9 (as the main services).

Thanks.

Simon