...... My resolv.conf:Thanks Lisa that also did solve the problem here.
My DNS-server was 192.168.0.1 (which I get with an automatic DHCP request).
After setting to the above fixed values, the problem is solved.
What I do not understand is, is that I detected my problem at 09 august 09 around 23:00 UTC.
At that time I was busy building the citrix-client package.
And suddenly I was faced with this non-reachable http://svn.pardus.org.tr/ server.
And it was also detected by other people at other (very different) locations.
Maybe some experts can explain this as this is a complete mystery to me.
My Android-tablet has the same problem trying to connect to http://www.pardus-wiki.org/