One of the main programs used for tweaking the console is setterm. It “writes to standard output a character string that will invoke the specified terminal capabilities. Where possible terminfo database (terminfo is a data base describing terminals, used by screen-oriented programs and libraries such as ncurses) is consulted to find the string to use.”
Disable the Annoying PC Speaker
Add this to /etc/rc.local
/sbin/modprobe -r pcspkr
Disable Screen Blanking
By default Linux enables screen blanking, like in a desktop environment. You can disable it by running this in the console.
$ setterm -powersave off -blank 0
Or to permanently disable it, add this to /etc/rc.local
sh -c 'setterm -blank 0 -powersave off -powerdown 0 `< /dev/console >` /dev/console 2>&1'
xset s off > /dev/null 2>&1
Power states
Reset the terminal to its power on state:
$ setterm -reset
Alternatively, initialize terminal:
$ setterm -initialize
Turns the terminal’s cursor on or off:
$ setterm -cursor [on|off]
Turns automatic line-wrapping on or off (virtual consoles only)
$ setterm -linewrap [on|off]
Sets the foreground text color (virtual consoles only):
$ setterm -foreground blue
Sets the background text color (virtual consoles only):
$ setterm -background red
Enables or disables the sending of kernel printk() messages to the console (virtual consoles only). Useful if you get lots message from iptables firewall:
$ setterm -msg [on|off]
Just note that you may miss some critical ones.
Sources
Article: Linux disable screen blanking