Allow SMTP users to send emails in Exchange 2010

When you need to integrate normal email clients in a exchange 2010 environment, you probably get problems with sending mails to the outside world.

To solve this you normaly do the following:

1. Create SMTP connector your users will use for sending mails
2. This connector must require user authentication

So in normal environments this would be enough to start sending mails.
But unfortunally Exchange does still return a error message like:

"550 5.7.1 Client does not have permission to send as this sender"

To solve this, you have to allow all authenticated users to send mails via this connector.
This can be done via the Exchange shell with this command:

Add-AdPermission -Identity "MySMTPConnector" -User "NT AUTHORITY\Authenticated Users" -ExtendedRights ms-Exch-SMTP-Accept-Any-Sender

Unfortunally non-english servers just won't find the corresponding group, since it is named differently (Read localized)
To find out the correct group name you can use this command:

Get-Adpermission -Identity "MySMTPConnector" | format-table -view identity

For a german installation the corresponding group is "NT-AUTORITÄT\Authentifizierte Benutzer"

So the final command for the german exchange server is:

Add-AdPermission -Identity "MySMTPConnector" -User "NT-AUTORITÄT\Authentifizierte Benutzer" -ExtendedRights ms-Exch-SMTP-Accept-Any-Sender

Java server side connector for CKEditor

We just published our first version of a java connector for CKEditor V3.x

You can find it here: http://sourceforge.net/projects/jckconnector/

It allows you to integrate file browsing/linking in your java server application.
Technically it uses vaadin the webinterface to the user.

You can provide your own version of the file store and link store.

It's the alpha release with probably some security holes "included"

Wuala now also available for Android

The secure online storage system Wuala (by Lacie) has just released the Android version of the client software.

Now you can access your files from Windows, OS-X, Linux, iOS and Android (And public files via Webinterface)

Disk partition alignment in windows

When creating partitions under windows, you should take care to get the correct alignment.

With the correct alignment you can gain/loose between 10-40% of performance.

The technical details can be found here:

http://msdn.microsoft.com/en-us/library/dd758814%28v=sql.100%29.aspx

It's a document about SQL 2008 server, but the same applies for "normal" applications too.

Daylight rules in Grandstream 2010 provisioning

Provisioning Grandstream 20xx phones via TFTP is easy, but one thing which causes problems is provisioning daylight saving values.

Normaly you should be able to set the P246 property to the correct value for your country/location.

It appears that inside the GXP, the firmware uses the same routine to decode the config file as is used to decode the data posted via a web browser. In other words, the data MUST BE URL-ENCODED.

For example, the following (current New Zealand 2007-onwards DST rule) will not work:

P246=9,1,7,2,0;4,1,7,3,0;60

But, if you URL-encode it, you will get:

P246=9%2C1%2C7%2C2%2C0%3B4%2C1%2C7%2C3%2C0%3B60

And guess what - the phone will accept it, and you're on your way :-)

If you've got python installed, you can encode things pretty easily. If you're using a different language, ask Google.

import urllib
print urllib.urlencode({'P246': '9,1,7,2,0;4,1,7,3,0;60'})

And here a online encoder
http://www.albionresearch.com/misc/urlencode.php

With that value you can set the correct daylight saving rules
for all grandstream phones in your network.

BTW: Perhaps someone should pass along this information to the fruits company, looks like iFruit is (not for the first time) having time problems ;)

Java application under windows 7

Developing java application fro windows 7 ?

Then look at this library, it might help integrate better with windows 7.
Not a "must have" but your users will appreciate it as a "nice to have".
And 50% of application functionality are "nice to have"

http://www.strixcode.com/j7goodies/

Your computer has no CD/DVD drive ?

A simple way to install most older and current linux systems is by creating a bootable USB stick.

Some distributions have a option to do this from the live CD, but you still have to first boot from that downloaded iso file.....

Here is a simple flexible solution:

http://unetbootin.sourceforge.net/

Just follow then instructions.

Beside this:

UNetbootin can also be used to load various system utilities, including:

• Parted Magic, a partition manager that can resize, repair, backup, and restore partitions.
• SystemRescueCD, a system repair, backup and recovery tool.
• Super Grub Disk, a boot utility that can restore and repair overwritten and misconfigured GRUB installs or directly boot various operating systems
• Dr.Web Antivirus, F-Secure Rescue CD, and Kaspersky Rescue Disk, which remove malware from Windows installs.
• Backtrack, a utility used for network analysis and penetration testing.
• Ophcrack, a utility which can recover Windows passwords.
• NTPasswd, a utility which can reset Windows passwords and edit the registry.
• Gujin, a graphical bootloader that can also be used to boot various operating systems and media.
• Smart Boot Manager (SBM), which can boot off CD-ROM and floppy drives on computers with a faulty BIOS.
• FreeDOS, which can run BIOS flash and other legacy DOS utilities.
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