My original interest in this methodology came when I stumbled across Eric Mann’s article, Ludicrous Speed: WordPress Caching with Redis. Of course this led to more in-depth research which produced the solution I eventually settled on which is our modified version of Wp Redis Cache by Benjamin Adams. So, in this tutorial I will walk you… Read More
In this article I would like to share a recent experience I had upgrading a customer server to new hardware. The server being upgraded was originally deployed on desktop hardware (Dell OptiPlex GX520) as a new server for this customer was not an option. This server was built and put in place in early 2010… Read More
Sysdig to give admins and developers unprecedented visibility into the behavior of their systems. Traditionally, system-level monitoring and troubleshooting still largely involve logging into the machine with SSH and using a plethora of dated tools with very inconsistent interfaces. And since most tools don’t offer any kind of history, you’re left struggling to reproduce the… Read More
Over the past few weeks while working with client servers running Ubuntu 14.04 LTS, we noticed that the Dynamic MOTD system seems to be outdated when logging in via ssh. While this is a minor annoyance, it needed to be fixed. After a quick Google search, we came across this source which explains how to… Read More
Thin is a Ruby web server that glues together three of the best Ruby libraries in web history. 1) The Mongrel parser, the root of Mongrel speed and security. 2) The Event Machine, a network I/O library with extremely high scalability, performance and stability. 3) Rack, a minimal interface between web servers and Ruby frameworks…. Read More
I like to call the method below “The Easy Debian Server Firewall”. You may ask why I call it easy. The answer is simple, it uses standard IPTable’s and has a start and stop script to quickly disable it in the event that debugging is required. Installing the firewall is a simple two stage process…. Read More
GlusterFS is an open source, distributed file system capable of scaling to several petabytes (actually, 72 brontobytes!) and handling thousands of clients. GlusterFS clusters together storage building blocks over Infiniband RDMA or TCP/IP interconnect, aggregating disk and memory resources and managing data in a single global namespace. GlusterFS is based on a stackable user space… Read More
OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux. It contains services like SSH, (S)FTP, SMB/CIFS, DAAP media server, RSync, BitTorrent client and many more. Thanks to the modular design of the framework it can be enhanced via plugins. OpenMediaVault is primarily designed to be used in home environments or… Read More
If you have been running a Linux Virtual Machine on Virtualbox for any amount of time, you have probably noticed that clock skew can be an issue. The fix is a throwback I have been using on all our Linux templates for years and had almost been forgotten until we recently built a new Debian… Read More
All IP devices need addresses, and ISC DHCP is the easiest and most efficient way to provide them. ISC DHCP is open source software that implements the Dynamic Host Configuration Protocol for connection to an IP network. It is production-grade software that offers a complete solution for implementing DHCP servers, relay agents, and clients for small… Read More