Automount usage

As you know, I have several machines running Linux, and I would like to provide anybody in my family the same environment when using any of them.

I already setup a LDAP centralized directory, to manage consistency of the authentication (see LDAP server installation article)

But I would like to find the same files at the same place.
Solution: centralized resources, shared by NFS + automount
Continue reading “Automount usage” »

LDAP server installation

I’m starting to get quite a number of systems at home. Physical machines, virtual machines, desktop, laptops, smartphones, tablet,… most of them running Unix flavor (I still have a few Windows, but less and less :-)
At home, we are 5: 2 parents, and 3 kids. Guess what ? All of them are willing to use a computer…

So I build up a little network that I’m trying to manage as simply as possible.
My challenge of the day: centralize logins and passwords to ensure consistent authentication across any device at home for everyone in the family.
When I started as Unix administrator, we were implementing Sun YP (yellow pages), which turned into NIS soon after.
I was looking for something even more flexible and more “in-line” with today usage of authentication…
This is how I came to look at LDAP (OpenLDAP)
Continue reading “LDAP server installation” »

Opensource Calendar and Address book server: DAViCal

As many of you, I’ve been using Google Calendar features for a long time. But that was not completely satisfying, from a pure “opensource” and intellectual property perspective…
I was also looking for a way to synchronize my various Thunderbird installations (my wife and I are both using several calendars and several address books…) across all devices we have at home/work (Linux, Windows, smartphones,…).

Yesterday, thanks to a colleague (another geek ? Check his website: ezIX), I found the answer. I decided to setup my own server for Calendar and for Address books.
This is DAViCal.
Continue reading “Opensource Calendar and Address book server: DAViCal” »

Remote monitoring with gkrellm

Icon GkrelLMAs you know, I have several systems running at home (physical and virtual machines).
I was looking for a way to “see” quickly any bottleneck, or any unusual activity on those systems from my laptop.

My first reaction was to go for a gnome-like system monitor (gnome-system-monitor).
Despite all criticisms I could read, it was showing me all necessary information, especially real-time graphs for CPU, Memory, and Network.
But when I launched them remotely (through an SSH session, and with the appropriate DISPLAY forwarding option), it showed clearly that it was consuming around 4Mb/s of Network bandwidth just to display… itself !

So, I googled a little bit, and I rediscovered a tool I used to install a long time ago : gkrellm
Continue reading “Remote monitoring with gkrellm” »