Archive for the ‘Unix(*nix)’ Category

Kerberos Realms Usage

November 18th, 2010 No comments

In order to authenticate against Kerberos realms and perform remote administration, the system must have the krb5-workstation package installed. Read more…

Categories: Unix(*nix) Tags: ,

How Kerberos Works

November 9th, 2010 No comments

Kerberos1The Kerberos authentication method originated at the Massachusetts Institute of Technology in the 1980s.

It was part of a project called Athena that involved integrating the computers on the MIT campus, which ran on different operating systems, in a network that offered single sign-on (SSO).

At that time, most UNIX systems allowed users to access their resources as long as they had an account name and password. Read more…


September 6th, 2010 No comments


Sending signals to processes using kill on a Unix system is not a new topic for most systems administrators, but I’ve been asked many times about the difference between kill and kill -9. Read more…

Categories: linux, Unix(*nix) Tags:

Adding Users and Groups via Command Line (Solaris)

February 21st, 2010 No comments

(And userstanding UIDs)

1. Login as root (or any account with UID=0) then create the new group:

groupadd myusers   (a new entry is created in the /etc/group file) Read more…

Categories: Unix(*nix) Tags:

Permanently delete data from your computer

January 13th, 2010 No comments

Permanently delete data from your computer with a “Government Wipe” standard of removal.  This is to be recommended, especially is you resell your computer. Read more…

Categories: Security, Unix(*nix) Tags:

MySQL in Danger?

January 1st, 2010 No comments


Oracle Finalises deal to acquire Sun
An announcement on their website ( ) states:
“we plan to engineer and deliver open and integrated systems—from applications to disk—where all the pieces fit and work together out of the box.”

(Note the use of small “o” in “Open”)

Help keep the Internet free


“A big part of the Internet is built on LAMP (Linux, Apache, MySQL and PHP/Perl/Python). Now Oracle is trying to buy Sun, which owns MySQL. Read more…

Categories: linux, Unix(*nix), Web Design Tags:

Expiring Emails with Vanish

September 6th, 2009 No comments

Probably one of the most refreshing ideas I’ve heard of in a long time.  Vanish, enable messages (e.g. email, google docs, facebook) to be transmitted, which disappear” after a period of time. Read more…

Categories: Unix(*nix) Tags:

Mount USB Drive on OpenBSD

July 4th, 2009 No comments

What follows is setting up a flash drive to work with OpenBSD and Windows Read more…

Categories: Unix(*nix) Tags: