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VPS & Dedicated

Webmin server management

When managing a Linux server, the most universal and basic method for server management is to access it directly from the command line. Most Linux server do not come with a graphical interface, and although you could install one, it would just take up valuable server resources, such as memory. …

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Secure user accounts with Jailkit

No, it is not something to help you break out of jail. Jailkit is a suite of free and open source software that limits user accounts to a limited portion of the filesystem, utilizing a tool called chroot. It can also be used to limit users to specific commands or …

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Microsoft to end Itanium support

Microsoft has announced that it will end software support for Intel’s Itanium processor. Windows Server 2008 R2 will be the last version to support the architecture that once promised to be one of the most powerful. The Itanium was once touted as the ideal server architecture by HP, and the …

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Data centers ride out Baja earthquake

The 7.2 magnitude earthquake that shook Mexico and southern California caused a fair share of damage in some areas, but it was no sweat for data centers in the Silicon Valley. As buildings rocked and picture frames toppled, servers were safe thanks to the seismic isolation technology used in many …

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Choosing a colocation provider

Looking to colocate a server? Well, you can’t trust your server with anyone, can you? Selecting a colocation provider can be a difficult task. While cost is often of most importance to buyers, here are some other factors you should consider before making a decision: Location. Pick a location that …

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Offering web-based email on your web server

These days, many email users rely on free services such as GMail or Yahoo! Mail for their messaging needs, but these services lack the customization that some business customers may want (i.e. myname@mydomain.com). For that, they have two options: setup cloud services with Google or another service provider, or use …

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How to change the Postfix port number

By default, Postfix, Sendmail, and other SMTP mail servers rely on port 25 to send email. Normally, this is fine and works for most situations. Some Internet Service Providers, however, disagree. They see port 25 as a prime port for spammer exploitation, and many have started to block it. If …

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How do I enable SSL/TLS in Dovecot mail server?

Dovecot is a popular POP3/IMAP server for Unix-like operating systems. It is available through most distributions, including RHEL, CentOS, and Fedora. To enable secure mail transactions, you will need to edit your /etc/dovecot.conf file as root. Uncomment the following lines: # Disable SSL/TLS support? ssl_disable = no # PEM encoded …

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Why uptime matters

Ever notice that most hosts have 99.9% uptime. There’s a good reason why they try so hard to keep things running. While a few percentage points might not seem like a big deal, over the course of a year they can really add up. Just take a look at the …

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