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Cisco QOS Exam

If you are currently working toward the CCVP, which was renamed to the CCNP Voice last year, one of the exams on the check list is the 642-642 QOS Exam, but only for a couple more months. If you take the QOS exam after February 28th 2012, it will no longer count toward the CCNP Voice. The new exam list is available on Cisco's page for the CCNP Voice, but here's a quick reference:


Last night I flashed my WD TV Live Plus HD Media Player with an aftermarket version of code called WDLXTV. Some notable differences are in the background image and the placement of the Internet media apps. For example, Youtube and Netflix are now in the Video menu, similarly Live365 and Pandora are in the Music menu.

It's not perfect, but at least my media player finds network shares and plays files again. That's more than I can say about the official firmware.

The Background Story

I purchased the WD TV Live Plus HD Media Player earlier this year because I wanted to start to digitize my dvd library. The idea of simply clicking a button on a remote control and selecting the movie I wanted to watch seemed awesome. Obviously any amount of time spent setting up that type of system would be justified in the many seconds a year I would save by not having to get up off the couch to manually insert a dvd into the player. As a man, I claim the right to justify anything I do with my infallible man-logic.

How to use the changeip command to modify the FQDN of a Mac OS X Server

I was recently faced with having to change the domain name on a Mac OS X Server. If I had to do this on a Windows machine, it would be a relatively simple process using a GUI interface. However, on a Mac server, there isn't (as of version 10.6.8) a way to change the fully qualified domain name (FQDN) via a GUI. Thankfully, there is a way to change the domain settings using the CLI and it's a piece of cake.

The changeip command was created to allow administrators to change the ip address and FQDN in static config files on a Mac OS X Server. For example, if you setup the DNS and iCal services, instead of manually updating the config files associated with these services, simply running the changeip command updates the files for you. 

The syntax for the command is as follows:

IPv6 Action Plan Video

If you have just been given the task of implementing IPv6 in your company or if you are in the middle of a deployment, you may be asking yourself "How?!" How exactly should you roll out an IPv6 network? Do you configure /64 subnets on point to point links or do you use /127's? How do you secure your network against the initial IPv6 attacks that are available?

These questions and more are covered in this hour long TechWise TV  episode, The IPv6 Action Plan. Some very good points and useful information here, have a look...

Netgear N750 Wireless Dual Band Gigabit Router (WNDR4000)

Five months ago my old wireless AP was on its last legs and needed to be replaced. Nearly every day, wireless access in my house simply wouldn't work and after unplugging the power and plugging it back in, wireless would work for a few short hours. That got tiresome, so I started searching for a new wireless solution.

I knew I wanted something that supported 802.11N, had Gigabit Ethernet ports, and could either be used as just a wireless AP or a router if necessary. I searched for hours, read reviews, and ultimately settled on the Netgear N750 450 Mbps Wireless Dual Band Gigabit Router

Verizon Wireless 4G LTE Mobile Hotspot MiFi 4510L

I recently had the opportunity to test a Verizon Wireless MiFi Hotspot. The model number is Novatel Wireless MiFi4510L and is branded with the Verizon Wireless logo.

Once configured, it shows up like a normal wireless SSID and supports security settings including WPA2 Personal/PSK (AES). Out of the box, the setup takes all of about 5 minutes to customize the SSID, configure an admin password, and setup a few other options.

Firefox 8 is now out

Mozilla hasn't stopped to take a break from it's rapid release plan this year, in fact they've blown right past it. Earlier this year, Mozilla announced on their roadmap that they would be releasing Firefox versions 4, 5, 6, and 7, however now with version 8 being released, you could say they've exceeded their own expectations.

What's new in version 8?

You might be wondering "what's new since I just upgraded yesterday, er..last month?" Well, the feature list is available in full in the release notes, but here's a quick summary:

Cisco Security Advisory - IKE Resource Exhaustion Attack

If you have ever setup an IPSEC VPN, then you are most likely aware of IKE. IKE is a protocol that can be used to get the first phase of an IPSEC VPN established, a.k.a exchange keys. Well, Cisco has identified a vulnerability in the IKE implementation on Cisco platforms thanks to the work of Roy Hills from NTA Monitor Ltd that could allow a malicious individual to unleash a denial of service on your VPN devices.

What's Vulnerable

Essentially, if your Internet facing VPN devices or border routers
allow anyone on the planet to establish an IKE session with your Cisco
VPN devices (Cisco 3000 VPN Concentrator, Pix, ASA, ISR, etc), then you
are vulnerable.

The issue is pretty much present in anything that supports IPSEC VPNs and doesn't explicitly filter traffic to the VPN devices. Cisco is tracking the issue in the following bug ID's:

CCNA Cert Library, 3rd Edition

A couple months back, I blogged about the pre-order status of the new CCNA Library, 3rd edition. Well, the new edition is now available for purchase. If you are looking to begin your studies toward a CCNA, this would be an invaluable place to start. 

The library includes two books, one for each of the two tests you can take to achieve the CCNA certification. Alternatively you could read both books and take the single CCNA exam. The library also includes updated practice questions, videos, and a network simulator.

Check Point 61000 Security System

If you need a massive amount of firewall power, check out the Check Point 61000. This thing looks like a modular switch chassis, but it's a firewall that runs all of Check Point's latest and greatest software. 

Officially announced in August of this year, the 61,000 is aimed at the largest of customers such as service providers or hosted solutions providers. The system is capable of pushing 200Gbps of filtered traffic and sports a Check Point Security Power rating of up to 14,000. If you are unfamiliar with the security power rating, it is a number that Check Point comes up with to try to quantify all the variables a security device can do using security power units (SPUs). Think of a small branch firewall providing a couple hundred SPUs and an enterprise edge firewall providing 500-2000 SPUs. So, 14,000 is a lot.

CCNA Labs...Networking for the Real World!

Well, the CCNA Voice 2011 series has just completed on CBTNuggets and now I have my dream opportunity. A couple years ago, I approached CBTNuggets with an idea on a series called "CCNA Labs" - I wanted it to be a hard-core hands on series, similar to CCIE Labs but at the CCNA level.

Now, my ideas are changing a little bit. I've met one too many people who are new to the Cisco world that say things like, "sure, I know how to configure a Cisco router...but what does a router really do again? Where would that go in a company? What's that do again?"

27 Inch Monitor

So, I recently upgraded my display setup in the office. Previously I was in single monitor land, sporting a rock-solid 22" Dell UltraSharp which I am quite pleased with. However, I wanted something bigger to take the role as the main display. Enter the ViewSonic VA2702W 27-Inch Full HD 1080p Widescreen LCD Monitor

CCDE Certification Exams Revised to Version 2.0

If you are studying for the CCDE, that's the design expert certification, then you most likely are aware that you have about a week left before the first version of the written and practical exams are retired. Version 2 of the CCDE written and practical exams will be the only available version beginning October 22, 2011.

If you are interested in more information regarding this announce, here's the official announcement.

For more information about the CCDE certification, here are some helpful links:

CCDE Certification Page

CCDE Data Sheet (PDF)

Apple iOS 5 Update Today

If you are a mobile Apple product user and you happen to live under a rock, you might be pleasantly surprised to learn that Apple is releasing the latest version of their iOS software today. New features include:

Re-enable http:// protocol in URL bar for Firefox 7

Mozilla is at it again with their rapid fire release of Firefox 7. If you have automatic updates enabled, it most likely restarted your browser and installed version 7 without you even really noticing. This release likely has some whizzbang feature they believe justifies a major revision, however I doubt most people would agree it's major revision worthy.

The topic of today's post is regarding one of the lesser advertised features slipped into this version which lends to the "stupidization" of web surfers. The protocol handle is now gone at the leading edge of the URL. So, previously you would see "", it now reads "". Probably not a show stopper for your average sheepish websurfer, but if you are security-minded and want to know whether you're accessing something via http or https, it's handy to see it listed.

Thankfully, there is a work around. Whoever thought this was a great idea at least recognized that some people wouldn't think it was great, so they added a configuration setting to undo the damage. Here's how to get it fixed:

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Dr. Radut