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Network Monitor Wizard now at CodePlex

I already talked about Network Monitor Wizard (AKA NetWiz ) here some months ago and this is an ongoing project that I have with some friends at Microsoft. Since our original code (written in C#) had some third party components we couldn’t really publish Read More...
Posted Tuesday, August 18, 2009 2:53 PM by yuridio | 0 Comments

Netmon Experts Day

Michael Hawker (Network Monitor PM) just release a video about the first Network Monitor Experts Day. Watch it at: http://channel9.msdn.com/posts/MichaelHawker/Network-Monitor-Experts-Day-Part-1-The-Experts-Story/ Also, talking about Netmon, check it Read More...
Posted Tuesday, June 09, 2009 8:28 PM by yuridio | 2 Comments

Netmon 3.3 is now available for public Download

Great news folks! Netmon Team just released Netmon 3.3 for public download. This release brings new enhancements from previous version, such as: · Ability to capture on WWAN and Tunnel interfaces on Win7 · Right-click add to alias. · Right click go to Read More...
Posted Wednesday, April 22, 2009 6:11 PM by yuridio | 1 Comments

Unable to Access Network Resources from WINDOWS VISTA through VPN using ISA Server 2006 as VPN Server

Last week I said that 3 out of 5 cases where user says it is an ISA issue it ends up not being. Today I worked in another case that goes to that statistic. What makes me sad about this is the mindset that many Windows Admins, Network Administrators and Read More...
Posted Wednesday, April 01, 2009 2:01 AM by yuridio | 1 Comments

Do you want to learn more about Netmon 3.2?

My friend Paul Long from Netmon Team recorded a series of videos that will allow you to better understand how Netmon works and how to use it. Check it out here: UI Overview Part 1 UI Overview Part 2 Capturing with the UI Capturing with NmCap Filtering Read More...
Posted Tuesday, March 17, 2009 2:28 PM by yuridio | 0 Comments
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Clients can’t browse Internet through ISA because ISA is waiting for the DNS to answer

Just a quick follow up on the article that I wrote for the ISA Team Blog about ISA stopping answering requests . Last week I was collaborating with Networking Team in another case where ISA was stopping answering because of delays in DNS response. They Read More...
Posted Wednesday, January 28, 2009 12:00 AM by yuridio | 0 Comments

Demystifying Networks Concept on ISA/TMG

The reason why I’m saying “demystifying” is because many people are still having wrong concepts and therefore making wrong assumptions about how networks are configured on ISA Server/TMG. Although this is well documented at TechNet (since it is a core Read More...
Posted Tuesday, January 13, 2009 9:17 PM by yuridio | 0 Comments

Error 64 “ The specified network name is no longer available” while browsing Internet through ISA Server 2006

1. Another error 64? After posting one of the reasons why ISA Server 2006 can come up with the generic error 64 in one of my posts , some readers asked me if this is the ultimate reason for this error. The answer is: it is not! Since the error 64 is generic Read More...
Posted Sunday, November 23, 2008 9:08 PM by yuridio | 1 Comments

Using Netmon 3.2 to Identify an Unexpected Traffic

1. Understanding the Problem I already worked in many cases where customer wants to know why ISA is alerting that it might be under attack by logging events such as: Figure 1 – Number of TCP Connections. …and also this one: Figure 2 – Denied Connections Read More...
Posted Sunday, October 19, 2008 8:14 PM by yuridio | 0 Comments

Netmon 3.2 Has Released

The latest build for Netmon is not available for download. I strongly recommend you to download this new version and test it. There are lots of new features that you will be surprise and glad that they were put in place. Also, check out some of the new Read More...
Posted Wednesday, September 17, 2008 6:51 PM by yuridio | 0 Comments
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Network Monitor Wizard – Assisting you to create your NMCap Command

It was winter 2006 when Roberto Farah and I started to develop this project out of MS work hours called Network Monitor Wizard. I was very excited with the robustness of nmcap but also a little concern about how many parameters we have to manually input. Read More...
Posted Friday, August 29, 2008 10:28 PM by yuridio | 2 Comments
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Authentication Problem on a 802.1x Wireless Network

1. Introduction The years working on Platforms and Networking were essential for me to build the foundation prior to migrate to the Security area. Regardless of the technology that I worked, most of the time I was dealing with situations where the customer Read More...
Posted Friday, April 18, 2008 4:14 AM by yuridio | 0 Comments
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Routing issues accessing internal resources through VPN

1. Introduction More and more the companies are allowing the employees to access the internal resources remotely. The good thing is that they are also concern about security. For remote access, the VPN still one of the most used solutions for small, medium Read More...
Posted Friday, March 28, 2008 2:57 AM by yuridio | 0 Comments
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Issues while assigning static IP Address with Windows RRAS using DOD (Dial on Demand) Interface

1. Introduction This article is based on a support incident that I worked back on the Platforms day. It was originally published in Portuguese and since it is really interesting I decided to also publish here in my blog. The scenario is the one below: Read More...
Posted Friday, March 21, 2008 4:19 PM by yuridio | 0 Comments
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Auditing a DNS Zone

1. Introduction One of the main aspects of security is the maintenance and to do that correctly the administrator needs to be able to track changes that are done in the environment. There are a lot of challenges on this area and one of the biggest challenge Read More...
Posted Thursday, March 06, 2008 2:30 AM by yuridio | 0 Comments
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