Disable FTP Server (proftpd) in Plesk

I don't need proftpd on my root server, I use sftp, so:

vi /etc/xinetd.d/ftp_psa

change

disable         = no

to 

disable         = yes

How to kill all cron jobs

kill $(pgrep cron)

BTW f.e.
kill $(pgrep php)
works as well

Delete empty mails from maildrop

I don't know why I have a bunch of empty mails on maildrop folder of postfix, but ...

find /var/spool/postfix/maildrop/ -size 0 -name '*' -exec rm {} +

Postfix. Delete some mails from the queue

Change "123@example" to something you need ...

mailq|grep '123@example'|awk {'print $1'}|grep -v "(host"|tr -d '*!'|postsuper -d -

PHP session timeout cookie lifetime

There are many ways to set cookie based session timeout in PHP. You can edit your php.ini or put it in .htaccess but I choose for today this piece of code:

<?php
ini_set('session.gc_maxlifetime', 172800);
ini_set('session.cookie_lifetime', 172800);
session_start();
?>

The session above will be valid for 2 days.

Don't track me - Google Analytics

I have many websites and I don't want to be tracked by my own Google Analytics code.

This Add-On for Google Chrome should deactivate Google Analytics at all

Redirect all pages to new domain

This code in .htaccess does redirect all requests to a new domain:

RewriteEngine On
RewriteRule ^(.*)$ http://WWW.NEW-DOMAIN.COM/ [R=301]

The problem was, all other directives work like: 

www.old-domain.com/bla -> www.new-domain.com/bla

but I need


www.old-domain.com/bla -> www.new-domain.com

www.old-domain.com/more/bla -> www.new-domain.com

So the htaccess code above works fine.