What are ConsoleKit and PolicyKit? How do they work?
I have seen that recent GNU/Linux are using ConsoleKit and PolicyKit. What are they for? How do they work?
linux
What’s the difference between fork() and vfork()?
I would like to understand in detail the difference between fork() and vfork(). I was not able to digest the man page completely.
Making Linux read swap back into memory
The Linux kernel swaps out most pages from memory when I run an application that uses most of the 16GB of physical memory. After the application finishes, every action (typing commands, switching workspaces, opening a new web page, etc.) takes very long to complete because the relevant pages first need to be read back in from swap.
realpath command not found
I have debian squeeze amd64. My current shell is bash. If I write the following in my terminal, it works:
Does fork() immediately copy the entire process heap in Linux?
A fork() system call clones a child process from the running process. The two processes are identical except for their PID.
dmesg: read kernel buffer failed: Permission denied
Since recently Debian has changed the default behavior for dmesg and I cannot use it simply from my local user.
Universal way to logout from terminal via dbus
I’m new with dbus, and saw different ways to log out from terminal depending on desktop env. But I’m curious is there any way to log out from any desktop env using dbus messages?
Execution of possibly harmful program on Linux
I’m writing a program that will test programs written by students. I’m afraid that I can’t trust them and I need to make sure that it won’t end up badly for the computer running it.
How to connect to x11vnc server on Linux from OS X (macOS)?
When I’m trying to connect to x11vnc server started on Ubuntu 16.10