Peter Van Eeckhoutte (corelanc0d3r)
Windows XP L2TP over IPSec dialup client VPN to a Juniper ScreenOS firewall, using Certificates
Before looking at the various configuration steps, we’ll have to take the following assumptions into account : – We don’t want to use the Netscreen Remote client, but we want to use the Windows XP built-in dialup VPN technology that allows us to build PPTP or L2TP/IPSec connections. Juniper screenOS does not support PPTP (which […]
IPSec VPN between Windows Server 2008 and Juniper ScreenOS
In this blog post, I will show you how to set up a IPSec VPN tunnel between a Windows Server and a Juniper ScreenOS based firewall and route traffic between hosts that are located behind these 2 VPN gateways. The Windows Server will acts as a gateway to build a VPN tunnel towards the Juniper […]
Exchange 2007 : Resource Room Mailboxes
Scenario : You have an AD account domain, that holds user accounts used to log on to the network/Outlook, and you have a dedicated Exchange 2007 resource forest, that holds the Exchange infrastructure, (linked) mailboxes, etc. Accounts in the account domain are synced from the account domain to disabled accounts in the Exchange forest (e.g. […]
Juniper ScreenOS Admin authentication using Windows based IAS (Radius)
On popular request, this is a quick write-up on how to set up a Juniper screenOS firewall to use an external Radius server (I’ll use Windows IAS) to authenticate administrators and to let the Radius server to assign admin privileges (read-only or read-write) First, you will need to set up an dedicated external Authentication server […]
My very best wishes…
The year is almost over, so I guessed this would be the perfect time to wish you and your families a Merry Christmas and a healthy, successful and splendid New Year. 2008 has been quite busy for me… I’ve migrated this blog from Sharepoint to WordPress, made this blog available on the internet over ipv6, […]
Blog now available over IPv6
I just wanted to share with you that, from this point forward, this blog and forum are now available over IPv6 (it might take a little while before all DNS servers are updated, but it should be fine before the end of the day I guess) If you access this website via IPv6, you should […]
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 […]
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It started snowing today, so I guessed it would be the perfect timing to write a quick and dirty howto on getting connected to the internet over IPv6, using a Juniper ssg5. I’ll also discuss the easy steps to configure Windows and Linux clients for IPv6 and access to the internet. Before looking at the […]