A few days agot upgraded ispconfig to 2.2.21 (from 2.2.1x) and since then, none of my websites are able to run squirrelmail (installed in /usr/share/squirrelmail and symlinked to ~/web/webmail, same effect also with an Alias of /webmail to /usr/share/squirrelmail) or access the DB.php PHP package (installed in /usr/share/php/DB.php) from a custom php script.
Checking/Unchecking "PHP Safe mode" does not have any effect.
If I make a symlink from /home/www/web6/web/webmail to /usr/share/squirrelmail (or add an appropriate alias to the apache config), then I get an error message in error.log:
"No user or group set - set suPHP_UserGroup"
which I don't understand, since suPHP_UserGroup is called correctly in Vhosts_ispconfig.conf (and works for other php scripts like dokuwiki, installed inside the user's home dir).
If I simply copy over all files from /usr/share/squirrelmail to /home/www/web6/webmail/, then I get the error message
"Warning: file_exists() [function.file-exists]: open_basedir restriction in effect. File(config/config.php) is not within the allowed path(s): (/home/www/web6) in /home/www/web6/web/webmail2/index.php on line 15"
The other problem appears when trying to include the DB.php pear package for database access from php. There, I always get the error message:
Warning: require(DB.php) [function.require]: failed to open stream: No such file or directory in /home/www/web6/web/php/news.class.php on line 2
Fatal error: require() [function.require]: Failed opening required 'DB.php' (include_path='.:/usr/share/php:/usr/share/pear') in /home/www/web6/web/php/news.class.php on line 2
which is even weirder, since the DB.php file is in /usr/share/php!
How can I restore the state from before the upgrade, i.e. that the users are allowed to run squirrelmail (and no, I don't want them to use the :81/squirrelmail/ package, since I changed the webmail URL only a few months ago and it was hard enought telling all my users about the changed URL and make the update their bookmarks, etc. I can't change that again!) and that the PHP scripts are allowed to use system-wide installed php packages, too.
Thanks a lot,