Linux

Joining Linux to Active Directory

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In the computer world there is always a large number of pros and cons for every technology. Windows is very good for general purpose usage and works great in an every day workplace, but doesnt perform ideally in some high performance environments. Linux can be tuned like crazy to give some high performance, but is […]

Networking

Networking Functions and Devices

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Now that we have the basics of networking theory, what does this mean to network functions and devices? Lets start at the bottom of the OSI layer and work up.PhysicalThe physical layer is exactly that – the physical (or wireless) connectivity between devices. The physical layer includes the network interface cards (NIC) and cabling between […]

Networking

Networking 101

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I recently was involved in several technical interviews for some technician and administrative positions, and was surprised by how little most of the prople understood networking basics. Most of the answers I got in the interviews focused on: Hubs are for home offices Switches are smart hubs, and used in businesses Routers are used to […]

citrix

Restricting Citrix users on the CSG

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I have a need to restrict users who can access the Citrix Web Interface (v 4.6) from outside the company, yet allow everyone to access it from inside. Some searching turned up several references to people restricting access based on username or group membership (such as http://www.jasonconger.com/Controlling-Access-to-Web-Interface-using-Web-Interface-Access-Control-Center.aspx), but nobody looked at how the site was […]

citrix

Configuring Citrix on Ubuntu

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Installing the Citrix client is easy, just download and execute it Opening a connection however fails with the errorYou have not chosen to trust “/C=US/ST=/L=/O=Equifax Secure Certificate Authority/CN=”, the issuer of the server’s security certificate To fix this, we need to download the Root CA certshttp://www.geotrust.com/resources/root_certificates/index.aspDownload all Equifax certificates and rename them from .CER to […]

citrix

Automating Citrix Presentation Server installation

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We just recently began upgrading our presenation server envrionment to CPS 4.5, and having quite a few servers to install we need a way to automate it. Currently we use some imaging software to clone the hard disk of a “gold” image, while this works for CPS 3.0 I have been warned about using the […]

SCOM

Variant types in SCOM

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One of the items I have tried to have SCOM do is monitor network traffic on some of our routers/switches. The basics of this is fairly simple – create an SNMP monitor to poll on a set frequency and then store it as performance data. However I ran into issues with SCOM reporting that the […]

citrix

My Printing Nightmare

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Often times printing is a simple thing, especially in Windows. The print server hosts all the drivers and the client needs only to point to the server to download the necessary drivers and map to the printer. However some situations aren’t quite so simple. Take for instance printing in a Citrix or other Terminal Server […]