Tech Tip
How DNS Works
DNS or the Domain Name Service, is a worldwide directory system that is an essential component of the Internet. You may use DNS thousands of times in a single work day and not even realize it. DNS works by resolving human friendly domain names such as www.eapps.com to machine readable IP addresses like 216.154.218.35.

Every domain has identified in the information maintained at the registrar what is known as the DNS servers of record. These DNS servers are the "master" DNS servers for the domain. All DNS servers are setup to synchronize periodically but there can only be one "master" for a domain.

Within the DNS server, each domain has what is called a DNS zone file.
It contains several types of records that are used for directing traffic. For example, the A Record stores the IP address that is associated with the  web site for the domain. Other types of records serve other purposes, such as the MX Record, which contains the IP address for the mail server for the domain. If you were to send a message to johndoe@eapps.com, your mail client would immediately query the DNS server of the Internet provider you use to find out where the eapps.com mail server resides.

For more information about the specifics of DNS, such as the meaning of the specific records, and what they mean in the context of your eApps account, please see our new DNS user guide in the knowlegebase of our support center. The shortcut link is http://support.eapps.com/hsp/dns.

When adding a new site to your VPS, it's important to remember that DNS is a distributed world wide directory, so it can take 24 hours or more for newly added or recently changed domains to resolve properly from everywhere in the world. It is also worth noting that you are not required to use eApps' DNS service  in order to use our hosting service.

New & Updated Applications
Greylist Filter - A new SPAM fighting tool is available!  This application is available for all customers, all plans.  Please see the article in this issue for more information.

RoundCube WebMail - We now offer an outstanding IMAP compliant web mail application implemented using AJAX. For more information, visit roundcube.net. If you are interested in using RoundCube please send an email to support@eapps.com with ROUNDCUBE in the subject. This application is only available to customers on a CentOS plan.

MySQL 5.0.27 with SSL - We now offer a version of MySQL that has SSL support. Connections to MySQL can now be encrypted for maximum security. Customers on the CentOS plans can upgrade to this version from the All Applications area on the System tab of the Control Panel. Please review the SSL for MySQL User Guide. Also, if you are upgrading from MySQL 5.0.19 or earlier, please see the MySQL release notes.

Mail Service Beta Users Wanted
eApps is presently beta testing an advanced mail solution, called Scalix, geared to Small and Medium Businesses (SMB).  We evaluated Scalix and Zimbra as potential high end mail solutions and chose Scalix due to what we believe to be a more favorable business and pricing model, a more robust feature set, and a superior internal design of the application.  Some of Scalix's key features are:
  • Support of any mail client
  • Mobile support
  • Powerful calendar, scheduling, and collaboration functions
  • Ajax based web mail
  • Standards based architecture
  • Much more
Scalix is a higher end mail solution, with an Enterprise level feature set. eApps will offer Scalix in a separate plan that will only run Scalix. We expect the pricing to start at less than $100 per month. We are at this time seeking a limited number of Beta users for a no cost trial and test period. If you are interested in testing out this outstanding mail solution and providing feedback to us, please send an email to sales@eapps.com and put SCALIX BETA in the subject.