Nessus/OpenVAS wrapper for ike-scan
ike-scan is a great tool to audit VPN/IPSec implementations. This tool, which runs under Lunix, Unix, MacOS and Windows, can be found at www.nta-monitor.com/tools/ike-scan/ (Latest version at time of writing is 1.9). My Nessus ike-scan NASL wrapper may or may not work with earlier versions or newer versions, so test test test) Some of the […]
Monitoring your network with Powershell
I have written a small powershell script that will help you to monitor various hosts on your network. Instead of using ping to see if a host is alive, this script will connect to tcp ports, so you can also monitor hosts behind firewalls (or hosts that cannot be pinged). In addition to this, you […]
Juniper : Netscreen Remote Dial-UP VPN with AD Radius Authentication and route based VPN / tunnel interface
The following procedure explains how to set up a Juniper ScreenOS based firewall to accept Netscreen Remote Client VPN connections and authenticate users using Active Directory (Radius via Windows 2003 IAS or Windows 2008 NPS). We’ll assume that all traffic to from the client to the 192.168.0.0/16 networks needs to pass via the client VPN […]
Exchange 2007 : Powershell script to select optimal database for a new mailbox
If you have multiple Storage Groups / Databases on your Exchange 2007 server, you may want to try to spread your mailboxes over all databases. You could use your “gut feeling” and/or select a database at random, or you could use a simple script to select the “best” database for hosting a new mailbox. The […]
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. […]
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