There will be situations when your organization will coexist with two or more Exchange versions. Example of this is if you’re upgrading from Exchange 2003 and/or 2007 to Exchange 2010. If you have a small number of mailboxes this might not apply and migrations and DNS changes can be made during a weekend. This post [...]
Ubuntu 12.04 Alpha 1 has been released!
The first Alpha version of Ubuntu 12.04, code name “Precise Pangolin” has been released! We are pleased to bring you the first set of developer images that capture the current fleeting reality of our Precise Pangolin (Ubuntu 12.04 alpha 1) as it starts to emerge. Alpha 1 includes the 3.2.0-2.5 Ubuntu kernel which is based [...]
Exchange Server 2010 SP2 released!
Service Pack 2 (SP2) has been released and can be downloaded here: http://www.microsoft.com/download/en/details.aspx?id=28190
Securing Linux using Iptables
This post will describe on how to secure your linux server using iptables. Iptables is a firewall and is installed by default on many linux distributions. One can edit the configuration using various shell commands but there is also a graphical tool called UFW – Uncomplicated Firewall. For servers that are not running X we [...]
How to use tar to backup your Linux system!
This short guide will help you to backup the system using tar and a cron job. The backup script # sudo tar -cvpzf /backup/backup.tar.gz –exclude=/mnt / -c = create or overwrite a new file -v = verbose -p = preserve permissions -z = compress the file -f = filename The recover script # sudo tar [...]
Understanding some telephony concepts within Lync Server 2010
This guide will address the basics of PBX integration. To have a better understanding of the various scenarios when it comes to PBX integration we can have a look at some basic telephony infrastructure. Public Switched Telephone Network / PSTN The PSTN is the the common network of telephony systems across the world. One could [...]
Understanding the various migration scenarios when moving to Office 365
This post will handle the various paths when planning for Exchange migration to Office 365. Each approach has both advantages and disadvantages and for most large organizations the only way to achieve this is to go with a hybrid solution. The solutions that I’m going to talk about is: Cutover migration Staged migration Hybrid solution [...]
How to use remote PowerShell to connect to Office365!
This post will cover the steps on how to connect to the Office 365 using remote powershell. Step 1: Download the Microsoft Online Services Module http://onlinehelp.microsoft.com/en-us/office365-enterprises/ff652560.aspx#BKMK_DownloadTheMOSIdentityFederationTool Step 2: Set up PowerShell with the right credentials Run $cred=Get-Credential. This will prompt for the Office 365 Administration credentials. Run Connect-MsolService –Credential $cred. This cmdlet will connect you [...]
Free/Busy with Outlook 2003, 2007 and 2010
This is a short post about the functions each outlook version can make us of. Outlook 2003 – Public Folders Outlook 2007 – Public Folders or Web Services Outlook 2010 – Web Services Outlook 2003 retrieves the free/busy information by asking the information store directly. And by information store I mean the Public Folder. In [...]