Archive for October, 2010
Installing Perl modules
Perl modules may be installed using the CPAN module or from source.
CPAN method
perl -MCPAN -e shell (to get an interactive CPAN shell)
perl -MCPAN -e ‘install Time::JulianDay’ (if you know the name of the module, you can install it directly without interacting with the CPAN shell)
Manually install from source
1. Download the Perl module from CPAN or other site.
2. Extract the tarball.
3. Run perl Makefile.PL
4. Run make
5. Run make test (optional)
6. Run make install
Read the rest of this entry »
Enable USB Camera in Virtualbox
Due to some IM need camera in my virtualbox. get the result from ubuntu
if [ "`grep vboxusers /etc/group|grep $USER`" == "" ] ; then sudo usermod -G vboxusers -a $USER ; fi
restart the virtualbox. and follow the following instructions
DO NOT add the line to /etc/fstab, or you may meet some issue 
none /proc/bus/usb usbfs devgid=groupid,devmode=664 0 0
Details
https://help.ubuntu.com/community/VirtualBox/USB
Also: furiusisomount can mount .bin file that can be mount as cd-rom in Windows.
some tips
1. disable SSH host key checking, means skip the (yes/no) question when ssh
ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no
Details
2. generate random password for account
dd if=/dev/random bs=1024 count=1 2> /dev/null |base64
3. autologin
expect-lite is very useful.
4. dos2unix missing (Ubuntu 10.04)
$sudo aptitude install tofrodos
$sudo ln -s fromdos dos2unix
$sudo ln -s todos unix2dos