Monthly Archives: August 2010

Plesk, qmail, Uncategorized

Plesk and „qq trouble in home directory“

After upgrading Plesk from an old, but working, 8.6.0 to a recent version everything worked fine afterwards. Then I did the „mistake“ and enabled the build-in greylisting feature. Out of sudden I wasn’t able to send a mail anymore. I got a „qq trouble in home directory“ error message.

Hmm … Bad!. Ok. First I checked the permissions of the qmail installation. All fine. So I searched around. A lot of people out there are having the same problem. It’s the greylisting feature! Plesk qmail thinks we are an extern sender and routes even local domains through the greylist. Bump!

So you may think: „A lot of people are having the same problem, so there is a quick solution!“. Nope – There isn’t! It take some a lot of hours to find a solution by myself. At all it’s easy – if you know how 🙂

So what to do? Since Plesk Version 9.0 you can choose your MTA between qmail and postfix. However the postfix implementation is causing more problems then the qmail one. So I still use qmail. Via the autoinstaller script of Plesk you can easily switch between these two MTAs. And that’s was the solution of my qmail „qq trouble in home directory“ problem.
Start the autoinstaller /usr/local/psa/admin/bin/autoinstaller. On the component list choose Postfix mailserver and continue. The script will uninstall the qmail mailserver and install the postfix mailserver. All current mails will keep in place. So don’t worry (however a backup is always and every time a good idea :-)). The completion of the script takes several minutes. After that do the same thing but select Qmail mailserver. For me it worked fine and the „qq trouble in home directory“ error was gone.

Quick ToDo:

  • Start /usr/local/psa/admin/bin/autoinstaller
  • Select Postfix mailserver as mailserver
  • Finish the installation
  • Start /usr/local/psa/admin/bin/autoinstaller
  • Select Qmail mailserver as mailserver
  • Finish the installation
  • Done
linux, Uncategorized, Web

How to speed up page rendering?

Today just a shorty: Enable gzip!

When using php set output_handler = ob_gzhandler. So every php request will be compressed.

Also you can use the defalte module of you apache2. In that case javascript, pure html and css will also be compressed.

  • activate the module a2enmod deflate
  • add some lines to you configureation (vhost or globle whatever you want) (global in this case)
    <Location />
    <IfModule mod_deflate.c>
    AddOutputFilterByType DEFLATE text/html text/plain text/xml text/php text/css text/js text/javascript text/javascript-x application/javascript application/x-javascript text/x-js
    </IfModule>
    </Location>
  • Don’t forget to restart the server! Do not just reload the configuration!

PS: To check the content-type on a linux command line of a web page try
lynx -head -dump http://www.google.com
PPS: Website to check the state of compression: http://www.gidnetwork.com/tools/gzip-test.php
PPS: Here is another website to check: https://www.websiteplanet.com/webtools/gzip-compression. (Tip by a reader of the blog)