How much RAM does the kernel use?
This question is motivated by my shock when I discovered that Mac OS X kernel uses 750MB of RAM.
Unix & Linux
Include domain name or not in /etc/hosts?
I am setting up a VMWare cluster of CentOS nodes. Is it best practice to include a domain name after the machine? What are the potential problems of leaving it out? Does a domain complicate configuration or simplify it?
Evince fails to start because it cannot read .Xauthority
I’m logged in remotely over SSH with X forwarding to a machine running Ubuntu 10.04 (lucid). Most X11 applications (e.g. xterm, gnome-terminal) work fine. But Evince does not start. It seems unable to read ~/.Xauthority, even though the file exists, and is evidently readable (it has the right permissions and other applications read it just fine).
How do I configure PulseAudio for 7.1 Surround Sound over HDMI?
I have my machine connected over HDMI to a receiver. But when I try to use more than two channels with PulseAudio, I only get two. pacmd list cards shows the card, but does not show an HDMI profile with more than two channels.
How to get fewer ttys with Systemd?
In the old days I just modified /etc/inittab. Now, with systemd, it seems to start tty[1-6] automatically, how should I disable tty[4-6]?
copy filenames with special characters to an external ntfs volume
I’m trying to copy the Documents and Settings folder of a Windows XP system over to an NTFS external disk using a USB Live of Puppy Linux.
How to find the network namespace of a veth peer ifindex?
ip netns set NAME NETNSID – assign an id to a peer network namespace
mv * folder (avoiding ‘cannot move’ error)
Anytime I want to move thousands of files to a new folder, I always encounter the same problem. > mkdir my_folder > mv * my_folder mv: cannot move 'my_folder to a subdirectory of itself 'my_folder' While I think that the error above is harmless (is it?) I am wondering if there is a way of … Read more
Allow non-admin users to install packages via apt or rpm?
Is it possible to allow non-root users to install packages system-wide using apt or rpm?
“mkdir foo; svn mv * foo”
I often want to do some variant of this idiom: