"Ask the Computer Geek"

Still building - stay tuned!

We are going to be adding sample of free code here! Feel free to start asking questions now by contacting us.

Authentication Code

If you are here for the authentication code, contact us - it is $50 and we will send you a link to our payment page or you can send PayPal..we will provide both upon contact. We will be posting a portion of the code here so you understand what you are getting.

For now here are just a few of the features:

• Session based authentication
• MySql backend
• Customizable header and footer to site integration
• Customizable stylesheet
• Configuration file to detail which pages require authentication
• User change password ability (once logged in)
• Admin login to add/edit/delete users
• MD5 hashed passwords
• Browser title bar shows user information (customizable)
• ...more!

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Using the explode command

To give an example of how to use the explode command to isolate a value:

How to use php's explode command to get the value you want...

First you want to set your value to a variable: $xyz = "www.domain.com";
Note that this could be the value from a query or a server variable or hard coded as the example above.

Next decide what you are dividing the variable by and use the following syntax...

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Creating a mailbox in postfix

We have been asked time and time again this question, so here is the quick commands for adding a virtual mailbox within postfix. Please keep in mind this may vary slightly depending on your operating system, however it is farily intuitive (we hope) that the directories should match:

First, ensure the entry is put into post_users table within your postfix database.
Remember to have a unique UID!

Now you want to use the same directory that you entered within the postfix database entry to execute the following commands:

This creates the mailbox directories:

maildirmake /var/spool/postfix/virtual/email@yourdomain.com/

This creates the correct ownership of the directories:
**Make sure you use the UID:GID you entered in the database!

chown -R UID:GID /var/spool/postfix/virtual/email@yourdomain.com/

That should be it. If you need a bit more detail, please ask and we will expand it...

How do I stop spam?

If we could answer this without question we would be richer than rich. However, IT Liberty LLC does a pretty good job at stopping spam by utilizing industry best practices. As a matter of fact our customers have been asking us to check if we are blocking mail we shouldn't be. You would be surprised how different life is when you don't get spam. Imagine going to your home's mailbox and not seeing any catalogs or flyers for days on end. The only thing in there are your bills and the occassional birthday or christmas card. In this day you would probably run right to the post office and ask why they have stopped delivering your mail, right? Yup, that is how it feels.

So click to read more about the spam protections IT Liberty LLC uses to get our answer. It is a combination of systems working together in order to check for spam, viruses and mail sent from open relays. Keep in mind as an ISP we have to be more cautious than you can be running your own mail server.

We use a combination of amavis, spamassassin and clamAV. SpamAssassin uses three separate block lists which in conjunction (Zen) take care of a vast majority of spam. You can go even further using grey lists and helo checks which we have to be very cautious as many servers out there are not configured correctly and being too strict with helo checks can block an awful lot of legitimate email.

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How do I know if I am metrosexual?

OK, our first non-computer question! And what a question...

Metrosexual was a term that was brought about to describe men that were simply well groomed. There needed to be a classification of guys that actually cared if hair was appearing in places that meant for the next global freeze rather than to be attractive to women.

At first, the term metrosexual was being confused with being gay. It has since, in most of the country, been more understood to identify heterosexual men that also care about their physical appearance and clothing accessories.

We have created a series of questions to see if have reached metro status:

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