Outlook Web Access (OWA) Compose/Reply issue

A few people reported having this problem when accessing OWA (Outlook Web Access) interface:

• Unable to compose a new e-mail message
• Unable to reply to an e-mail message
• Unable to create a new contact, task, note, journal entry, or appointment
• Unable to change any configuration in the OWA (Outlook Web Access) options folder

In most cases you may also see a small red "x". This happens on the newer Internet Explorer browsers (IE7 and IE8) and the reason is that Internet Explorer does not allow the ActiveX component to run. This is the solution:

Killing a zombie process

On unix-based systems, a zombie process or defunct process is a process that has completed execution but still has an entry in the process table. You can read more about it on wikipedia.

# ps aux | awk '{ print " " }' | grep -w Z

Tar files over the network

When transferring large amounts of data, its a good idea to tar/gzip it first. What if there is not enough space on the source system to contain both the original content and the tar/gzipped content?

SSH and Authorized keys

This is a short HOWTO on setting up secure shell access without a password

Generating Keys

Protocol version 1 key generation

To create the most simple key, with the default encryption, open up a console, and enter the following command :

[dave@caprice dave]$ ssh-keygen

Forward email to smarthost (sendmail)

If you'd like to send emails using sendmail and your ISP's SMTP server (or another smarthost), do the following in sendmail.cf:

Change IP address (SBS Server)

When changing the IP address of a server (Windows 2003 Small Business Server)  in the network properties tab does not update the IP address for services such as DNS, WINS, DHCP, etc. In order to properly change the IP, do the following: