[Very slow speed over IPSec (Fritz!Box)]

Try to increase MTU value to 1500

[Can I use advanced options in a Linux conf?]

For those who has difficulties while editing config file i can recommend following resources:

http://www.jsoneditoronline.org/

http://www.thomasfrank.se/downloadableJS/JSONeditor_example.html

[Install on Linux]

I'm running Ubuntu 12.10 server on a 64 bit machine and get this error when I try to run "sudo apt-get install ia32-libs"

A little research has shown that ia32-libs has been obsoleted in favor of multiarch. Any ideas?

Yes. I have one:

• ia32-libs, or 32-bit compatibility libraries for 64-bit systems, is only available in the amd64repositories, i.e. if you are using a 64-bit version of Ubuntu.
  
• You only get the "no installation candidate" error if you are already on a 32-bit system
  

Can you confirm that you have 64-bit Ubuntu? Type "uname -m" in terminal. For 64-bit it should be x86_64