These are my links for 9 apr 2013 through 11 apr 2013:
Apache VirtualHosts and SELinux under CentOS 6 | SilverStripe CMS Developer Blog – This article briefly describes how to move virtual hosts outside the standard /var/www/html directory in CentOS 6.x. By default SELinux in CentOS does not allow the httpd process to access files outside the standard /var/www/html directory. One side effect of not having the access permission is that properly configured virtual hosts resolve to the default directory without any errors in server's log files. This makes it difficult to troubleshoot without installing additional tools.
ownCloud quick setup for Debian – Nine Productions – First off I wanted to say that the documentation and installation of ownCloud is incredibly easy. I just wanted to add a few notes for people who are setting it up on a Debian distro as there is a slight difference from Ubuntu as well as offer some more assistance for Active Directory users.
These are my links for 28 dic 2012 through 9 gen 2013:
PeteNetLive – KB0000741 – HP and Cisco – VLANs and Trunks Confusion! – When I first started in IT, I went and did my Cisco CCNA. So I learned that to connect Cisco switches and pass VLAN traffic between them, I needed to create a 'Trunk' to pass the VLAN traffic. Fast forward a few years, and I now work for an HP reseller. Very early on I came to realise that what HP called a 'trunk' was very different from what I had been taught. Below is an article I did a while ago about setting up HP Trunks.
OpenNOP – Open Network Optimization Platform – OpenNOP is an open source Linux based network accelerator. It's designed to optimise network traffic over point-to-point, partially-meshed and full-meshed IP networks.
The goal of OpenNOP is to increase network performance over low speed network connections such as ISDN, DSL, DS1, frame-relay, VPN and other network circuits. To accomplish this we can use a variety of techniques such as compression, deduplication, caching and protocol spoofing.
The objectives for OpenNOP are:
Produce a low cost solution to increase network performance, improve the end user experience and deliver this in a easy to use appliance image.
Provide a single solution for networks on terrestrial, cellular and satellite systems.
Facilitate an open framework that can be extended by 3rd party modules to improve specific network traffic.
Deon’s World – Understanding and using htop to monitor system resources – Every so often there will be something that slows a system down. There are a few tools that can help to identify which process is the cause of this slow down. One such tool is htop. Htop is an interactive and real time process monitoring application for Linux which will show you your usage per cpu/core, as well as a meaningful text graph of your memory and swap usage.
Squid kerberos authentication and ldap authorization in Active Directory « Klaubert’s Blog – The squid web cache include a authenticator for kerberos, it is simple to use, but the documentation is not very clear about how to make it work. Below some steps use by me to make Squid 3.0 Stable1 and Squid 2.6 Stable17 authenticate against Active Directory (Windows 2003 Directory Service) and also to make it make the authorization using Ldap. This setup was not used in production environment yet, so its possible to had some problems not seen by me or scalabilities issues.
Open vSwitch is a production quality, multilayer virtual switch licensed under the open source Apache 2.0 license. It is designed to enable massive network automation through programmatic extension, while still supporting standard management interfaces and protocols (e.g. NetFlow, sFlow, RSPAN, ERSPAN, CLI, LACP, 802.1ag). In addition, it is designed to support distribution across multiple physical servers similar to VMware's vNetwork distributed vswitch or Cisco's Nexus 1000V.
21 Ruby Tricks You Should Be Using In Your Own Code – 2009 Update: This post was written in early 2008 and looking back on it, there are a couple of tricks that I wouldn't recommend anymore – or to which extra warnings need to be added. I've added paragraphs like this where necessary. Enjoy!