Why Linux Won't Work

.... for me at this moment (and probably for most others).

I'm still in the fase of migrating my Windows server to a more 'reliable' Operating System. The new server should cover the following basic functionalities:

• Filesharing (either via Samba or NFS)
• Webserver with PHP and Coldfusion
• SSH server
• RADIUS Server
• Central user database (e.g. an LDAP server)
• a NZB downloader of some sort
• etc.

Up till now I've tried several Linux distros (Ubuntu 7, Ubuntu 8, and CentOS 5), and none of them are that easy to configure.

It seems that NFS isn't that easy to configure, since Apple OSX requires some special features (standards anyone??). Especially when you want some sort of user authentication. Just do a search on Linux, NFS and Apple OSX.

So after NFS didn't really work, I tried SMB for filesharing. While CentOS has some GUI to configure the shares, it lacks the interface of permissions for users...
You create users within the Linux environment, and if you wanna connect to a Samba share you need to configure additional users (in a different userdatabase).
This can be done by synchronization, but you need to do some scripting etc.

So far I've managed to install a working SSH server (with x509 authentication) and a Webserver.

When I compare this with Windows.... Well, there's no real comparison. Windows has a real central user database (not talking about the Active Directory here, but the local user database). And every service I need can talk to this database, and every service recognizes this database. No need to start 'hacking' some configuration files to make it work.

Well, as long as there's no new (read:better) interface of configuring those services and combining them with a shared user database ....

LINUX >> /dev/null

Recommendations can be left in the comments (if there are any)......

Unpredictable Exposures

When shooting from a tripod and/or with Live View on your (d)SLR you may find strangely exposed photos. Some are darker than others.

This could be related to the light seeping in through the ocular on your camera. Normally you have your eye against the ocular, but when you use e.g. Live View on your camera, you watch the LCD. This leaves the ocular 'open', and unwanted light might enter the camera and screw up the exposure of the photos you're taking.

I created a small example were I shot several high-speed images (in Aperture priority mode) while I used a small flashlight to pass a beam of light over the back of the body (e.g. car lights passing by in low light circumstances). I made sure that I also 'touched' the ocular with the beam of light.

You can see that the exposure goes from normal to dark, and back to 'normal'.

I haven't found any real differences when you're shooting under normal circumstances, but when (a strong) light is shining in or on the ocular, you might be in trouble.

Career Change??

We had a presentation of a local photo journalist this evening on our camera club. It was to hear what his job was about. But after hearing his story, and seeing some of his portfolio I decided to stick with my current career. I'm just not that type of a photographer. I like shooting what ever I want, and not what someone else wants. I guess I would be a terrible wedding photographer :).

Thankfully not everyone likes the same thing, otherwise it would be a boring (grey) world.

During the break I had a little conversation about the photos taken by the National Geographic photographers (which is also a form of photo journalisme). That it might be nice to do those kind of photo shoots.
But if you've seen the National Geographics  'The Photographers' DVD you might change your mind on that as well :). It's not as romantic as you might think.

More Forks

This is the final version which I presented during the cutlery results evening. One of the local camera club assignments.

Twins

More photos on my flickr page.

Backup Strategy

Most things, if not everything, are stored on digital media nowadays. Parts of your life are registered on your hard disks, CD's, and DVD's. But what if one of those fail? Do you have a backup?

Backing up to optical media (like CD and DVD) is cheap, but with cheap also comes questionable quality. Will those files you've backed up two years ago still open? I don't know, and I don't care actually. I back everything up to external drives. A 500GB drives is cheaper than a spindle of DVD's matching the storage capacity, and a harddisk is faster and can be reused if nessecary. Another drawback of DVD's is that they have a relatively small capacity. I would need tons of DVD's just to backup my photos.

Most of my work is being done on my iMac. Attached to my iMac is a Firewire drive configured for Timemachine. This is done for quick and easy access to the average screw-up on my behalf (like deleting a file or directory by mistake).
At least once a week, or after certain events, like shooting a gazillion photos, I make a backup to my local server (which could as well be a network attached storage device, or a USB/FW drive). This backup remains onsite. For real disasters (like the burning down of my house) I have an offsite backup. This backup is made on a small 320GB 2.5inch USB drive (<€100) and runs whenever I think I need to do that.  This drive is encrypted with Truecrypt, so if someone steals the disk, they don't have access to my (precious/private) data.

Ideally, you could store drives with a friend or family. Every time you visit you exchange the drive. You do need at least two offsite drives for this to work.

The only thing that can go wrong (in the terms of data loss) is that the house burns down with me in it, while I'm backing up for offsite storage. Well, in that case I don't need the backup since I won't be around needing it ever again...... Or when Murphy visits.

I did think about a real online offsite storage solution (like Amazons S3 service), but the problem is my Internet upload speed. E.g. if I shoot 8GB of photos on one day it take almost two days to upload that to any service. Furthermore, online storage of >100GB of data aint cheap either. So, the offsite disk drive is a relatively simple, easy and cheap solution giving (me) a good backup strategy.