Category Archives: Microsoft

Microsoft Windows 7 PPTP issues: spurious ICMP protocol-unreachable sent

I was recently confronted to a strange issue with a PPTP VPN connection to a central site. Some users could connect and some others could not. They all used Windows 7 with SP1, configured the same way, and all computers … Continue reading

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VMware and Windows poor TCP performance

I have had a strange issue lately with Windows servers on VMware vSphere 5.1 hosts. Throughput of TCP connections between some virtual machines were very very slow, barely 10 mbit/s . The behavior was easily reproducible : just start an … Continue reading

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Using Windows domain resources while VPN is active with different credentials

If you are frustrated to get your Domain account locked while you are logged on a VPN with different credentials than your Domain credentials, then this is for you. Edit the file %userprofile%\AppData\Roaming\Microsoft\Network\Connections\Pbk\rasphone.pbk with your favorite text editor. All the … Continue reading

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Active Directory export script to import into SME Server

I had to migrate users from an Active Directory/Exchange combo to a SME server for temporary disaster recovery event. Here’s the script I wrote to create the export and recreate the users and their aliases in the SME server. The … Continue reading

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OpenIndina: resize an iSCSI LUN exported to Microsoft Windows 2008

Just as a reference for future needs. To resize a zvol exported as an iSCSI LUN to a Windows OS, you need to change the zvol size, then change the “iSCSI backend” the LUN changed size and then do a … Continue reading

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Don’t use SQL Server 2012 with VMware vCenter and modules yet

Update: I just saw that since April 25th, SQL Server 2012 and Windows Server 2012 are supported by VMware vCenter 5.1U1 . All information is available here : blogs.vmware.com/vsphere/2013/04/vmware-vcenter-server-5-1-update-1-released.html Original November 21th 2012: While it is working with the SSO … Continue reading

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Exchange 2003 : rechercher une adresse email

Si vous voulez retrouver à quel User est lié une adresse email dans Exchange, suivez les points suivants: Ouvrez Active Directory Users and Computers, Clic droit sur le domaine ciblé, cliquez Find, Dans le champ Find, choisissez Custom Search, Choisissez … Continue reading

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VMware : migration de Windows

Yo. Si vous voulez migrer des Windows vers une VM VMware, vous rencontrerez sans doute le fameux BSOD 0x7b. Le problème vient du fait que Windows n’a pas les infos pour gérer le disque. Pour aider à la résolution du … Continue reading

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Transition Exchange 2003 vers 2010 : points clés

Hardware Exchange 2010 requiert un OS 64bits et donc un hardware 64bits. Si le stress sur le disque a été réduit, il a été augmenté sur le processeur et la mémoire. Ne pas lésiner sur les quantités de RAM (>8GBytes). … Continue reading

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