Using Fedora 9 as an OSPF / BGP router (Quagga / Zebra) and set up BGP between Linux and Juniper ScreenOS

In this post, I’m going to show you how to set up a Linux host (Fedora Core 9) and use it as a BGP enabled router.  In order to fully understand the setup & configuration, please have a look at this blog post first, because I’ll use the setup in that post as a foundation […]

Juniper ScreenOS BGP Basics : a simple iBGP test case

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 be going too much into all the details of what BGP is and how it works, but […]

Dynamic Distribution Lists not working as expected (0 recipients during mail routing)

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 makes sense) This is what happened : I created a dynamic distribution list, based on company […]

PHP performance on Windows 2008/IIS7

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 5.2.x and runs on a MySQL back end.  In my configuration, the entire setup is running on […]

Using 2 internet links with Juniper screenos Firewalls to separate traffic (pbr) and apply traffic shaping

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) and http traffic (3Mbit), and route all other internet traffic over the other connection The techniques […]

Using OSPF on Juniper Netscreen Firewalls

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 Advertisements (LSA’s) for directly connected links, and will forward LSAs received from other devices to ensure […]

Windows Live Writer unable to connect to WordPress Blog

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 Windows Live Writer to WordPress. When trying to connect Live Writer to my blog, I received […]

Free tool – PVE TCP Ping Utility – v1.0.0.1

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 VPN tunnel from a script (by generating traffic to a target host), to determine whether a […]

WMI ADAP was unable to create the object Win32_PerfRawData_ ASPNET_2050727_ASPNETAppsv2050727

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 various servers : WMI ADAP was unable to create the object Win32_PerfRawData_ASPNET_2050727_ASPNETAppsv2050727 for Performance Library ASP.NET_2.0.50727 […]

Freetools website down ! – Update : website online again

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 the day, so let’s cross fingers. I apologize for any inconveniences this may cause. If you need […]

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