Alt+Print Screen not working (Ubuntu 10.10)

Q. I've installed the new version of Ubuntu 10.10 (Maverick) and Alt+PrtScn doesn't work anymore.

A. This will be fixed in the future releases (hopefully), for now there are various ways around it:

1. In terminal window, type in the following as root:

sysctl -w kernel.sysrq=0

Installing php5-mssql in Ubuntu

Q. How do I install support for mssql in php on Ubuntu?

A. The answer is not as intuitive as apt-get install php5-mysql, but pretty close:

This command will install generic support for MSSQL (based on sybase):

aptitude install php5-sybase

Disable Non-Delivery Reports (NDRs) in Exchange

There has been a rise of backscatter spam (incorrect automated bounce messages sent by mail servers, typically as a side effect of incoming spam.). Recipients of such messages see them as a form of unsolicited bulk e-mail since they were not solicited by the recipients, are very similar to each other and are delivered in bulk quantities. Systems that generate e-mail backscatter can end up being listed on various DNSBLs and block lists. This creates a lot of headaches for Exchange admins. One way to battle it, is to disable Non-Delivery reports, generated by the server.

In MS Exchange 2000/2003

1. Click Start → Programs → Microsoft Exchange, and then click System Manager.

Remote Desktop over SSH in Windows 7

For reasons unknown, Windows 7 Remote Desktop Connection prevents connections to localhost, as a result you cannot tunnel to the RDP machine directly. (ie. 3389:remotesystem:3389) Trying to use hostnames and point to 127.0.0.1 doesn't work either - the system recognizes that it is connected to localhost and gives an error.  (This was removed on XP with Service Pack 2, but then brought back)

Find out version of Ubuntu

Q. How do I find out what version of ubuntu I have?

A. If you are running a desktop edition, do the following:

1. Go to the Main Menu.

2. Click System, mouseover Administration and select System Monitor.

3. Select the System tab.

One of the first lines will be Ubuntu version:

Joining Google group with Google Apps

Q. How do I join a google group with a Google apps account? The login page does not let me in.

A. This is a problem on Google's side, so hopefully they will fix it. For ow, here's how to access it:

Use this url and replace "groupname" and "myid" with your email address:

https://groups.google.com/group/groupname/boxsubscribe?email=myid