Flush DNS cache in Linux
If you happened to register a new domain name and you can’t access it, it may be your DNS cache that holds the problem. Here’s how to flush DNS cache in Linux: /etc/rc.d/init.d/nscd restart
Category Archives: System
Disable automount for removable devices in Ubuntu
Say you want to disable the automounting feature of Ubuntu. You can press Alt+F2 and type polkit-gnome-authorization. Press Enter and in the new window that appears go to Storage > Mount file systems from removable drivers. Press Edit. Select Active Console: Authentication. Press the Modify button. Alternatively, if you only want to disable the Nautilus… Read More »
Kill processes faster with PKILL
Instead of kill or killall you can use pkill to faster terminate a process in Linux. pkill pidgin will search for any instance of Pidgin among the currently running processes and kill them all.
Backing up the bootsector
Afraid you might mess up your MBR? Back up the bootsector: dd if=/dev/hda of=bootsector.img bs=512 count=1 If anything goes wrong, you can boot from a LiveCD and restore the bootsector with dd if=bootsector.img of=/dev/hda