Corelan Team (corelanc0d3r)

Free Tool – Exchange 2007 Outbound SMTP gateway redundancy

(a.k.a. PVE Exch2007 Rerouter manual) Keywords : Exchange 2007 outbound SMTP relay redundancy SendConnector outgoing mail high availability Microsoft Exchange 2007 allows you to consolidate your messaging infrastructure and host more users on one server. Combined with the introduction of new server roles, Exchange 2007 allows for high levels of redundancy and resilience, ensuring uptime […]

Outlook and OWA Tips & Tricks

1. Manage Attachment behaviour 1.1. Outlook 2007 Although you probably have deployed an antivirus solution in your messaging infrastructure, by default, Outlook blocks access to certain attachments, even if they have been scanned or not. After all, Outlook doesn’t really know if an attachment has been scanned and is safe for you to open. The […]

Securing Windows Server 2008 and Active Directory

According to Microsoft, Windows Server 2008 is the most secure Windows server version ever. Windows 2008 does include many features that will help increase overall security of the OS, or assist you with securing AD, the network, etc. Most of the features/roles available in Windows 2008 are not being installed in a default installation of […]

Using custom/non-Performance Counter data to build graphs in Operations Manager 2007

It is pretty easy to use data collected by Performance monitors in Counter objects within OpsMgr 2007. You can create graphs, create rules/monitors alerts, etc But you can do the same with any type of information that can be gathered by e.g. a vbs vbscript Suppose you want to monitor the number of files in […]

Monitoring disk space utilization growth/increase with Operations Manager 2007

By default, Microsoft Operations Manager includes some monitors / rules that have the ability to monitor the disk utilization of system and/or data disks of your servers (and clients). This is a really nice feature, however there may be reasons why this kind of monitoring would still leave you one step behind of your users. […]

Add ‘Command Prompt Here’ when you right-click in Explorer

Open your favourite registry editor (regedit will do just fine) Go to “HKEY_CLASSES_ROOT” Locate the “Folder” key Open the “shell” branch Create a new key called “Command Prompt Here” Open this key and create a new key called “command” Open “command” and double click the “default” entry (REG_SZ) Type the following :  cmd.exe /k pushd […]

Creating empty VMWare .vmdk files

Having empty vmdk files allows you to – create virtual machines even with vmware player – create additional disks and add them to existing vmware installations The easiest way to create custom vmdk ‘disks’ is by using a free online tool called “EasyVMX”  (http://www.easyvmx.com) Use EasyVMX version 2 to create a virtual machine : http://www.easyvmx.com/new-easyvmx.shtml […]

IP Autotuning in Vista

At any given time, the amount that TCP can send is governed by three factors: the congestion window, the receive window and the number of bytes available to send. Without using TCP window scaling (which is disabled by default in previous versions of Windows), the maximum receive window a receiver can advertise is 64K bytes. […]

System/Disk Backup in Vista using command line script

Microsoft has implemented a really neat feature in Vista Business, Enterprise and Ultimate, allowing you to perform a full disk or even system backup, while the system is running. This new backup tool used Block Level backup and uses Volume Shadow Copy to backup open files (however, it is advised to close your applications while […]

Open a command prompt with system rights in Vista (and XP)

First of all, download psexec from the Microsoft website. http://www.microsoft.com/technet/sysinternals/utilities/psexec.mspx     From and elevated/admin command prompt (cmd.exe, “run as administrator”), run psexec –s cmd.exe    C:\>whoami peter C:\>psexec -s cmd.exe PsExec v1.83 – Execute processes remotely Copyright (C) 2001-2007 Mark Russinovich Sysinternals – www.sysinternals.com Microsoft Windows [Version 6.0.6000] Copyright (c) 2006 Microsoft Corporation.  All […]

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