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How to Set Up Virtual Domains and Virtual Users in Postfix
A previous tutorial covered how to install a Postfix mail server and test it with mailx. Now we’ll introduce email aliases, set up virtual...
Java Servers as Nova-Docker Containers && RDO Mitaka External vlan networks
Nova-Docker driver is installed on Compute node which is supposed to run two Java EE Servers as light weight Nova-Docker Containers (instances) having floating...
4 Ways Custom Code Metrics Improve a Development Team
One of the things that has surprised me over the years is how infrequently people take advantage of custom code metrics. I say this...
Linux Containers vs. VMs: A Security Comparison
More vulnerable than virtual machines? In fact, containers have some security advantages.
Developers love containers. They’re easy to use and fast to start. You can...
Cleaning Up Your Linux Startup Process
The average general-purpose Linux distribution launches all kinds of stuff at startup, including a lot of services that don't need to be running. Bluetooth,...
Linux Foundation Certified System Administrator: William Brawner
The Linux Foundation offers many resources for developers, users, and administrators of Linux systems. One of the most important offerings is its Linux Certification...
Linux Server Provisioning Using Stacki
Server provisioning is a set of actions to prepare a server, taking it from bare metal to a functioning system complete with an operating...
Multiple Virtual Hosts on CentOS 7 or RHEL 7
This article tends to help you to set up multiple websites (virtual hosts) on single web server running on Linux CentOS 7 or Red...
Linus Torvalds Ships “Fairly Big” Linux Kernel 4.6 Release
Linus Torvalds this week released the final code for version 4.6 of the Linux kernel. This release comes two months after the previous 4.5...
OPNFV’s Inaugural Plugfest Hosted by CableLabs
OPNFVs first Plugfest was held at CableLabs facility in Louisville, CO. This event, which focused on deployment and integration of OPNFV as well as...