As explained in one of my earlier posts, ScreenOS supports a couple of ways to provide for dynamic routing. Today, I’m going to explain some basic implementations of BGP on ScreenOS. Unlike my post on OSPF, I won’t Read more

Today, I encountered an interesting problem which appeared to be strange behaviour in Exchange 2007 at first, but fianlly ended up being a small configuration mistake. It just was not that easy to troubleshoot(but in the end, it all Read more

My discussion forum has been running for more than a month now, and I guessed it was about time to have a look at the performance of the web site.

The forum is based on bbPress, uses PHP Read more

Scenario : you have 1 Juniper firewall, which has 2 internet connections : an expensive but reliable 4Mbit connection, and a fast, less expensive, but less reliable 20Mbit connection.

Goal : use the reliable connection for smtp traffic (1Mbit) Read more

Introduction to OSPF

OSPF is a link-state (dynamic) routing protocol that operates within an autonomous system. OSPF falls within the group of Interior Gateway Protocols. Devices that use OSPF will

• advertise link state information. The devices generate Link State Read more

Keywords : Invalid response document returned from XmlRpc server – System.Xml.XmlException: Unexpected end of file while parsing Name has occurred –

After moving my old Sharepoint based blog to WordPress, I have encountered some problems when trying to connect Read more

I wanted to share a small utility that I wrote a while ago, allowing you to run a non-interactive ‘ping’ to a tcp port (e.g. from within a script).

This could for example allow you to bring up a Read more

Scenario : OpsMgr SP1 (RC, but problem also exists in the RTM version) on Windows Server 2003 SP2 fully patched, OpsMgr agents deployed to various servers.

Soon after deploying the agents, I started getting the following error message on Read more

Hello all,

Just wanted to let you know that the website hosting my free tools (http://users.telenet.be/internet.activities/freetools or http://freetools.corelan.be ) is down for a couple of hours.

My ISP has promised to solve the issue before the end of Read more

Introduction

The title of this post may be a bit misleading – synchronizing multiple account domains to a single domain or forest is not limited to Exchange. There may be other reasons (e.g. Identity Management solution) that require you Read more