sSMTP is a very simple and straightforward alternative to big MTAs like sendmail or Exim. Unfortunately CentOS repositories don’t come with it, so you have to fetch it from Fedora’s EPEL repo. After activating the ‘Extra Packages for Enterprise Linux’ repository, you can install sSMTP: Configuration is rather simple. Just change the following values in your /etc/ssmtp/ssmtp.conf You can test… Read more »
If the Dom0’s kernel is built with pciback as a module (grep CONFIG_XEN_PCIDEV_BACKEND /boot/config-`uname -r`), using the kernel command-line parameter pciback.hide won’t work. There is of course more than solution how you can assign hardware to a domU, but the probably easiest one is to to pass the hide parameter to the pciback module in /etc/modprobe.conf: The xensouce mailing list… Read more »
Per default, CentOS 5.3 saves a domU’s state when the hypervisor is shut down. In principle this a nice behaviour: The domU will restore its state automagically when the hypervisor comes up again and just continue working. But there are some services (e.g. mldonkey) that don’t like to be restored and refuse to work (i.e. keep in a blocked state… Read more »
This is an easy one: You just append zeros at the end of the corresponding image file (here 1GB): You may want to shutdown your domU before changing its image file. After appending the zeros, you can restart the domain and expand its filesystem.
First, we have to delete our current partition and create a bigger one (don’t be afraid, no data will be lost): Type m to get a list of all commands: Let’s print out the partition table and look for the ext3 partition, we want to enlarge (it’s easy here, there is just one partition): Now we delete the old partition… Read more »
If you encounter the problem of being unable to start an X application through an ssh-tunnel and run into an error message similar to or you should check that you used ssh -X[…] to enable X11 forwarding when connecting to the server that the xauth-package is installed correctly on your server xauth is used to edit and display the authorization… Read more »