How to restart services like youtube (sound) and usb (flashdisk)

[Macario Valle]

On Sun, 2007-10-28 at 08:23 +0700, Ali Milis wrote:
> Hi,
> 
> Once in the while my youtube (firefox/flash) will have no sound.
> This will usually happen after returning from a screen saver.
> Then, it will work again after exiting firefox (and sometimes
>  rebooting).
> 
> I tried to restart alsa-utils with no success. Is there any
> other way?
> 
> Also, I am using an USB cable modem (Sci.Atlanta 2100).
> Sometimes, the system will not recognize the USB disk.
> Is there anyway to restart the USB service?
> 
> regards,
> 
> -- 
> Raja Ali M.I. Ilias, Bengkalis, https://wiki.ubuntu.com/AliMilis
> Counted GNU/Linux Engineer # 405138 - http://counter.li.org/
> Ubuntu User # 14458 - http://ubuntucounter.geekosophical.net/
> 
On a terminal window:
 cd /etc/init.d	
ls

The resulting list of files is most of your services.
to restart alsa:
sudo /etc/init.d alsa-utils restart

not sure which one would be for usb, as i undertand it various service
mount usb devices.