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New Networking-related KB articles for the week of July 26 – August 1

This week, I have 4 new KB articles to share: 974080 DirectAccess Workaround for reaching IPv4 address checking sites 971383 Data loss occurs when the Winsock "recv" function returns 0 bytes if both the client-side and the server-side applications Read More...

Posted: Thursday, August 06, 2009 6:40 PM by MichaelPlatts | 0 Comments

Filed under: DNS, Windows Server 2003, KB Articles, Windows XP, RRAS, Windows 7, DirectAccess, Winsock, Windows Server 2008 R2

New Networking-related KB articles for the week of July 19 – July 25

I’m trying to resurrect this series of sharing the latest KB articles related to Windows networking technologies. I hope you find this to be helpful! There are only 2 such KB articles this week: 969632 Background Intelligent Transfer Service (BITS) does Read More...

Posted: Wednesday, July 29, 2009 10:13 PM by MichaelPlatts | 0 Comments

Filed under: Windows Server 2008, KB Articles, Windows XP, RRAS, BITS, L2TP

DNS Client Resolver Behavior

The following question comes up from time to time and for various reasons. What is the expected name resolution behavior of the DNS client resolver on Windows XP or Windows Vista? This may be for a single or for multiple network interfaces. So I thought Read More...

Posted: Friday, June 26, 2009 4:29 PM by MichaelPlatts | 5 Comments

Filed under: DNS, Windows Vista, Windows Server 2008, Windows Server 2003, Windows XP

SNMP Traps in Windows Server

What is an SNMP Trap? It’s nothing but an alert message with abstract information about an event sent from an SNMP agent to its configured SNMP manager. It notifies the administrators about an event that occurred in the SNMP agent. There is separate service Read More...

Posted: Thursday, June 25, 2009 4:46 PM by MichaelPlatts | 6 Comments

Filed under: Windows Vista, Windows Server 2008, Windows Server 2003, Windows XP, SNMP, Windows 2000

DNS Round Robin and Destination IP address selection

This post is meant to discuss the issues that can occur with Destination IP address selection and its affect on the DNS Round Robin process. What is Round Robin and Netmask Ordering DNS Round Robin is a mechanism for choosing an IP address from the list Read More...

Posted: Friday, April 17, 2009 5:18 PM by MichaelPlatts | 2 Comments

Filed under: DNS, Windows Vista, Windows Server 2008, Windows Server 2003, Windows XP, IPv6, IPv4

DNS Client Name Resolution behavior in Windows Vista vs. Windows XP

In Windows, the DNS Client service is the client component that resolves and caches Domain Name System (DNS) domain names. When the DNS Client service receives a request to resolve a DNS name that it does not contain in its cache, it queries an assigned Read More...

Posted: Thursday, April 16, 2009 7:08 PM by MichaelPlatts | 7 Comments

Filed under: DNS, Windows Vista, Windows XP

Stopping the Windows Authenticating Firewall Service and the boot time policy

Lately, I have been seeing a number of issues/concerns from people where they manually stop the Firewall service and lose connectivity to the machine. They always seem surprised when I explain that it is by design. A little History In versions of Windows Read More...

Posted: Tuesday, March 24, 2009 7:45 PM by MichaelPlatts | 3 Comments

Filed under: Windows Vista, Windows XP, Windows Firewall

Network connectivity issues post deployment of MS09-001? Try updating your Anti Virus Signature

One of our customers reported an issue after applying the update per KB958687 (MS09-001), which installs a new version of SRV.SYS. The customer was experiencing the following symptoms: Request Timed Out error when trying ping the problem machine from Read More...

Posted: Wednesday, March 04, 2009 9:58 PM by MichaelPlatts | 1 Comments

Filed under: Windows Vista, Windows Server 2008, Windows Server 2003, Windows XP, SMB, Windows 2000

How Windows Update Client and NAP Client View Important Updates

If you are configuring Windows Security Heath Validator for Security Update Protection, you have multiple options. One of these options are 'Important and above' as shown below: This being the case, you may think that any Important Update available Read More...

Posted: Friday, October 24, 2008 9:07 PM by MichaelPlatts | 1 Comments

Filed under: Windows Vista, Windows Server 2008, Windows XP, NAP

New Networking-related KB articles for October 14 - October 20

956803 MS08-066: Vulnerability in the Microsoft Ancillary Function driver could allow elevation of privilege 957095 MS08-063: Vulnerability in SMB could allow remote code execution 955427 Copy process is very slow when you copy large Read More...

Posted: Friday, October 24, 2008 5:54 PM by MichaelPlatts | 0 Comments

Filed under: Windows Vista, Windows Server 2008, KB Articles, Windows XP, SMB, IPSec, NAP, NAT

New Networking-related KB articles for October 7 - October 13

953835 You cannot perform NetSH commands by using a user account that belongs to the "Network Configuration Operators" security group on a Windows Vista-based computer or on a Windows Server 2008-based computer 957931 A Windows Read More...

Posted: Wednesday, October 15, 2008 10:50 PM by MichaelPlatts | 0 Comments

Filed under: DHCP, Windows Vista, Windows Server 2008, KB Articles, Windows XP, NAP, SNMP

Windows Firewall service starts automatically after installing Windows XP Service Pack 3

Installation of Windows XP Service Pack 3 results in the Windows Firewall service being set to Automatic startup, regardless of its previous startup setting. After installing Service Pack 3 for Windows XP, you may be surprised to see that both the Windows Read More...

Posted: Friday, September 19, 2008 7:42 PM by MichaelPlatts | 12 Comments

Filed under: Windows XP, Windows Firewall, XP SP3

Introduction to the Microsoft IPSec Diagnostic Tool

The Microsoft IPSec Diagnostic Tool can help its users troubleshoot IPSec-related issues on a system. It also captures non-IPSec parameters like system data, network interface, group policy, and Windows services like NAP, firewall, RRAS, Wireless, Read More...

Posted: Friday, September 19, 2008 4:58 PM by MichaelPlatts | 2 Comments

Filed under: Windows Vista, Windows Server 2008, Windows Server 2003, Windows XP, IPSec

IPSEC Domain Isolation: A Test Study - Developing a Plan

This post is second in a series by David Pracht and Steve Martin. To read the first post, click here . Developing a plan... We started by brainstorming about what we might need to consider in the environment. For example – Does the Forest Read More...

Posted: Friday, July 18, 2008 11:51 PM by MichaelPlatts | 1 Comments

Filed under: Windows Server 2003, Windows XP, IPSec

Intermittent file sharing connectivity from various clients to a Windows Server 2008 server

Issue In recent weeks we have seen a number of cases with intermittent file sharing connectivity to Windows Server 2008 servers. I wanted to get this information out so that people who may be experiencing the issue won't have to spend a lot of time tracking Read More...

Posted: Thursday, July 10, 2008 7:03 PM by MichaelPlatts | 19 Comments

Filed under: Windows Vista, Windows Server 2008, Windows Server 2003, Windows XP, SMB