HTML5 Form Validation

With newer browsers that support HTML5 client side validation, Google Chrome (16+), Mozilla Firefox (8+), and Internet Explorer (10+).  You can easily take advantage of the required flag and the input validation. For example, you use the required attribute to require a user to enter a value for an INPUT element.   A…

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Useful Postfix Commands

Below are a list of useful commands for managing a postfix mail server: mailq – Use to list items in your mails queues postcat -q MESSAGE_ID – Used to read messages that are in your postfix queue postsuper -d ALL – Delete all queued messages postsuper -d ALL deferred – Delete all messages in…

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