Zoo's

MeerkatLast weekend I visited Ouwehands Dierenpark. A Zoo near the town of Rhenen in the Netherlands.

It had been a while since my last visit to any zoo. It sure is nice to stroll around the zoo with a camera, but in many cases it almost seems cruel to see those animals in those cramped spaces for the rest of their lives.

I think it might have to do something with seeing all those animals in the wild in Africa. Once you've seen that, the rest is kinda sorry, but on the other hand, not everyone has the possibility of going to Africa, and this might be the only way of seeing those animals in real life......

B.t.w. those cute polar bears are known to chase humans. Especially photographers :)

Posted on April 24, 2008 and filed under Personal, Photography.

All Comments Held For Moderation....

Ever since I upgraded to Wordpress 2.5 I had to moderate every comment posted on this blog. Note that I hadn't turned this on in the Wordpress settings.

Some research showed that it might have to do something with 'older' plugins. After a trail and error period I found out that the WP Hashcash plugin was to blame. Ever since I de-activated it, the problem seems to be gone.

Posted on April 24, 2008 and filed under Annoying, Tips'n Tricks, Website, WordPress.

VMWare and Firewall / VPN Clients

Well, that was another morning well spent....

A couple off weeks ago I started experimenting with FreeRADIUS on Ubuntu server (v6.06.2 TLS). Mainly because I needed to test some things for work. So I used VMWare to experiment. The networking part was set-up as Bridged.

Today, I wanted to test with iperf (a tool for network performance testing). So I launched the virtual machine, but there was no network connectivity. ifconfig showed that eth1 didn't received an IP adres.
So I ran every possible test there was;

  • restarted the interfaces (/etc/init.d/networking restart)

This resulted in the following;

Listening on LPF/eth1/00:0c:29:68:e3:eb
Sending on LPF/eth1/00:0c:29:68:e3:eb
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12

The "DHCPDISCOVER" messages continue about 4 times, then the message:

No DHCPOFFERS received.
No working leases in persistent database - sleeping.

  • restarted the DHCP server
  • rebooted the virtual machine
  • changes the networking to NAT instead of Bridged (this way, connectivity was restored, but not the way I wanted. I needed Bridge-mode)
  • Tried to run the virtual machine on OSX (VMWare Fusion), which worked surprisingly.

After this I ran Wireshark on my server to see if DHCP request were coming in.... And you might have guessed; No DHCP request were reaching the DHCP server. So the problem was work PC related.... As a matter of fact, I had the Cisco VPN client running..... Which didn't allow the DHCP request broadcast.

Shutting the VPN client down solved the DHCP problem. After the virtual machine worked I could reinitiate the VPN.

Mental note to myself: do NOT boot/restart the virtual machines when the VPN is up.

Authentication Required While Printing on OSX 10.5.2

Since I upgraded from OSX 10.5.1 to 10.5.2 I haven't been able to use my shared printer on on my Windows server. Every job I submit gives me an error saying On Hold (Authentication Required).

There's no way that I could submit the printjob to the server from my Mac.

It seems that there is a bug in the authentication mechanism on OSX 10.5.2. If you add a (network) printer by using the System Preferences, you get to browse to find the actual printer.

Posted on March 31, 2008 and filed under Annoying, Apple, Tips'n Tricks.

Wordpress v2.5 Upgrade

Today, I upgraded to Wordpress 2.5. The upgrade proces was easy as usual. Before the upgrade I checked all the plugins used, and upgraded those first. The new features / layout of the adminpages are great. Also the new editor works like a charm (even on Safari). Somehow it feels a bit more intuitive.

Only downside is that the Wordpress Stats on the dashboard won't work in FireFox. It works fine in Safari. Instead of showing the graph in FireFox it shows the actual dasboard page from wordpress.com.

Posted on March 31, 2008 and filed under Website, WordPress.

Nokia E61i Firmware Update - update

It's been a couple of days since my firmware update, so it's time for a small update on the subject.

The biggest advantage is that the mail client is very stable. I use (secure) IMAP and I have 3 mailboxes configured on the device. The mail client hasn't crashed yet.

The biggest downside (in my opinion) is that the 3G connection drops automatically, so you need to re-establish the connection every time. Sure, it saves bandwidth (and costs), but it's annoying that you actively have to monitor your e-mail.

Thankfully, the advantages outweigh the disadvantages, so I'm still happy with the Nokia E61i.

Posted on March 28, 2008 and filed under Personal, Symbian.

OSX Update Galore

There are lot's of people who complain about the updates on the Windows platform, but Apple tries to compete I guess. In the last 3 days there was a big security update, Safari 3.1 (both Windows and OSX), Time machine and Airport Updates, and now a Camera RAW update for OSX 10.5.2. Thankfully no problems on my side with the updates. Looking for other updates from Apple? Just go here.
Posted on March 20, 2008 and filed under Apple, Operating Systems, Photography, Security, Software.