To run a command right after you boot, before anybody logs in, add the command to the file /etc/rc.local:

1. Open a Terminal.
2. Become root: su -
3. Open the file in your favorite text editor: vi /etc/rc.local
4. Add the command that you want to run to the end of the file, on its own line.

If your having trouble diagnosing email issues with Zimbra Opensource edition, such as having trouble receiving external email look at the following wiki pages:

• http://wiki.zimbra.com/index.php?title=ZimbraMtaMyNetworks

Problem:

HTTP request status Fails
Your system or network configuration does not allow Drupal to access web pages, resulting in reduced functionality. This could be due to your webserver configuration or PHP settings, and should be resolved in order to download information about available updates, fetch aggregator feeds, sign in via OpenID, or use other network-dependent services.

If you need to restart vmware server's web interface run the following command:

#  /etc/init.d/vmware-mgmt restart

This article is for those who want to install VMware Server 2.0 on an OpenSuSE 11.1 install.  This can be a painful process, but, with these steps it should be successful.

Preparations

The following packages are assumed to be already installed: kernel-source, make, gcc, gcc-c++.
Missing items can be installed in Yast --> Software Management.

In case you forgot to add another disk or partitioned your Linux installation wrong, you can still move /home to your new drive with these steps.  This works for Fedora, CentOS or SuSE.

Make sure that you are logged in as root and that no other user is logged in, then follow these steps;

1) fdisk /dev/sdb -- create a partition
2) mkfs.ext3 /dev/sdb1 -- format the partition as ext3
3) e2label /dev/sdb1 somelabel -- set a label 'somelabel' to the partition.

When you have tons of passwords, its easy to forget new ones or old ones. This is how you reset the root or admin password for Endian 2.2.rc3

1.)Connect the video and keyboard and reboot your Endian Firewall.
2.)Boot the machine and continually thumb the down arrow until you see a graphical menu on a grey background with title GNU

GRUB. Press a cursor button in order to stop the countdown. Otherwise it will boot automatically.

3.)Select the first menu item and press 'a'.

# You should see:

grub append> root=/dev/hda3 panic=10 ro

To administer Oracle Database 10g and keep it running smoothly, the DBA must regularly monitor its performance to locate bottlenecks and correct problem areas.Finding bottlenecks and problematic areas before they become an issue is in the DBA's best interest.

There are hundreds of performance measurements the DBA can look at, covering everything from network performance and disk input/output (I/O) speed to the time spent working on individual application operations. These performance measurements are usually referred to as database metrics.

The SQL Tuning Advisor

Interesting article regarding Remote SYS login

http://it.toolbox.com/wiki/index.php/Remote_login_as_Sysdba_to_Oracle_da...