Aug 222013
 

I’ve received this press-release from Proxmox, I like their software and I really believe that it can enhance the work of system administrators, and so I’m happy to publish this news about their new release.

What’s Proxvox ?

Proxmox Virtual Environment is a complete open source virtualization management solution for servers. It supports KVM-based guests, as well as container-virtualization with OpenVZ and includes strong high-availability (HA) support based on Redhat Cluster and Corosync. Installation is fast and easy with a bare-metal installer and configuration is done via the integrated web-based management interface. Based on Debian GNU/Linux and fully licensed under the GNU Affero General Public License, Version 3 (AGPL-3.0), Proxmox VE is a solution without restrictions for home and business use.

What’s new in 3.1 release ?

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May 142013
 

dkim-process

Article By Chris Pentago

Goal of this how-to: Step to step guide on how to setup  OpenDKIM with postfix on Debian GNU/Linux to send signed email from your VPS.

There are numerous methods or techniques that you can use to achieve email message signing. Good examples are DomainKey as well as DKIM which is an abbreviation for DomainKeys Identified Mail.

DomainKeys Identified Mail (DKIM) lets an organization take responsibility for a message that is in transit.  The organization is a handler of the message, either as its originator or as an intermediary. Their reputation is the basis for evaluating whether to trust the message for further handling, such as delivery. Technically DKIM provides a method for validating a domain name identity that is associated with a message through cryptographic authentication.

These two techniques will not use symmetric encryption but rather will employ asymmetric encryption. (more info: http://support.microsoft.com/kb/246071) In both methods, the common algorithm used is RSA. This algorithm is also the default for these methods of achieving email message signing.

For those wondering about what asymmetric means, the following is a detailed explanation. It is a technique that utilizes a key to sign the email message. Other methods will not require a key. One can have two types of keys: a private key and a public key. These keys will come into play to verify the message as well. The two methods of creating email message signing as highlighted above are filters for SMTP server. DomainKey works with a dk-filter although this filter has been discontinued in the market. OpenDKIM has become the preferred replacement where filters are concerned.

A mail server must be enabled with a filter to set up the server properly. In light of this, Postfix can be used because it is enabled accordingly. Another requirement is the freedom to add or change the DNS records as you desire. With the above in mind, the following is a step by step guide on how to set up Postfix email server with DomainKey Indentified Mail on Debian.

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Apr 282013
 

livarp
Recently I’ve posted an article about the Windows manager and desktop environments that use less resources on Linux and thanks to a comment of Sebastian I’ve discovered Livarp, a lightweight GNU/Linux Distro.

Livarp is a DEBIAN-based distro that tries to take the best part of available Debian GNU/Linux applications without loosing accessibility or design, special attention was paid to the documentation that in a simple page collects all the most important information you need to know on the available software of this distribution and how to configure it.

And if this is not enough you can also visit the the irc freenode chan #livarp, where you can get more help for the installation/configuration.

Livarp can run on a PIII with 128M ram but is better with a PIV and 512M ram, higher configurations are just a bonus.

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Proxmox version 2.3 available

Proxmox Ve is an Open Source project developed and maintained by Proxmox Server Solutions GmbH in Austria under the auspices of the Internet foundation of Austria (IPA) and it’s released under the GNU General public license 3. It is a solution based on Debian 6 Squeeze at 64 bit, which duly “customized”, allows to create […]