Blog

As I write this, we’re going through another “snow event”, with a forecast of high winds and 10-20 inches of snow to top the 24-36 inches that fell a few [...]

I think I have a love / hate relationship going with the Cisco 6500 Sup720-10G module ports. On the one hand, they’re darn handy and cost-effective. On the other hand, [...]

The Cisco AnyConnect VPN client is Cisco’s SSL VPN client offering.  Cisco currently supports this VPN client and the legacy IPSec VPN client, called the Cisco VPN Client.  The Cisco VPN client will be phased out over time.  This can be seen by the Cisco VPN Client FAQ explaining that…

For those of you that think professional hackers don't care about your small business, let me introduce you to Zeus, the number one threat of 2009.  According to SC Magazine: "Zeus:  Also known as Ztob, this bank credential-stealing trojan is masterfully built.  It is designed to evade anti-virus detection and…

I am posting the PDF of a presentation I prepared for the Business IPv6 Exchange on Tuesday 1/26/2010. The contents represent my thoughts together with what I found after conducting light research ("Google") about the topic -- to see if anyone had anything to say on the subject that fell…

Around a week ago I posted a blog about setting up 3rd Party SIP phones in Cisco Unified Communications Manager (CallManager).  I received a comment about whether it was possible to use X-Lite with the UC-520.  Well, I haven't used the UC-520 myself but I believe it is basically Cisco…

Buffer tuning has long been an interesting topic for me.  I recently found a blog post by Brough Turner, who wrote an interesting article about a potential misconfiguration of AT&T [...]

Recently a client approached me about improving their VPN authentication. Although the current VPN authentication method had been in place for many years without any issues, the new IT manager's goal was to migrate the Windows server farm to the latest and greatest version (Windows Server 2008) and improve the…

Just recently, I wrote a blog about SIP clients for iPhone and provided my review of two client applications based on testing of their integration with Cisco CUCM.  If you've not yet read that blog, you can find it here: SIP Endpoints in Cisco CUCM - Acrobits Softphone and WeePhone…

I guess I'll have to add another thought to my "What It's Like to Be a NetCraftsmen" series and that is that sometimes being a NetCraftsmen is funny.  At times, I feel like the UC team shares a collective brain because I had already sketched out a blog on how…

So, this blog started with me looking for something to break up the heavy design documentation I have been doing for what seems like forever.  Like all tangents I undertake I find that I want to touch every button and turn every dial.  Some would say I am a glutton…

Have you ever had a Cisco router or switch shutdown due to a fan failure?  While looking through Applied Infrastructure blog under