To get a list of install packages under a Debian based system use the following command: dpkg –get-selections. To narrow down the search, pipe the results into a grep statement. i.e. “dpkg –get-selections | grep sql”. This will list all of the packages installed with sql in the name.
One of the most important functions a computer does is to keep time. For instance in a Windows AD environment if the Servers and client computers are more than 5 minutes askew then Kerberos authentication will fail. In other words they refuse to talk to each other. Try supporting that.
To ensure your computers are all on the same time use an NTP server to synchronise against. That will keep all the computers on the same time and make your support team’s life happy. Exactly how to Setup an NTP daemon such as ntpd or the Windows time service will be the subject of another post.
So let’s assume your computer is nicely synchronising but you check the time and it’s out by 4 hours. What do you do? Read more about Where in the world is my server? Or how to change timezone on a Debian Lenny 5.0 computer …
The default install of K3b doesn’t include mp3 support. So if you are trying to create an audio CD from a bunch of MP3 files then it’s a no go. Luckily the solution is as easy as installing an additional package. Launch the Synaptic Package Manager form the System -> Administration menu. The package youRead more about How to create audio CD’s using MP3’s with K3b[…]
Under the postfix system aliases can be created so that an email addressed to a particular address can be delivered to another address. This is handy for email addresses which are often misspelled, or an alias can be used to redirect a generic email address to specific user. For example support@ can be redirected to bob@.
The process for adding aliases is as follows:
The postfix configuration file main.cf which is usually located in /etc/postfix identifies the files being used for aliases. You’re looking for the alias_database and alias_maps directives. Alternatively you can execute postconf which will identify the values in use.
In a default Ubuntu install you are using /etc/aliases
As root perform the following: Read more about People cannot spell my name. How to add Postfix aliases. …