Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
Allow a remote IP for incoming connection in UFW (Uncomplicated firewall)
Answer:
To allow a remote IP for incoming connection in Ubuntu's UFW (Uncomplicated firewall), you can use the following command:
# sudo ufw allow from x.x.x.x
Of course you need to reload the firewall.
# sudo ufw reload
Change your default locale on Ubuntu
Answer:
To change your Ubuntu's default locale, what you need is edit the file /etc/default/locale
LANG="en_US.UTF-8"
Add your choice of locale like the above.
Restart your computer and take effect.
Changing keyboard layout on Ubuntu
Answer:
If you have set a wrong keyboard layout, you can change it using the following command:
# dpkg-reconfigure console-setup
Follow the instructions and change it.
How to get the full list of Ubuntu's managed Perl modules?
Answer:
The full list of Ubuntu's managed Perl modules is here (for lucid): http://packages.ubuntu.com/lucid/perl/
You can use apt-get into install those modules, instead of CPAN. The advantage is you can remove them easier with the apt-get command, while for CPAN, you need to do it manually.
Remove downloaded archive files from apt-get
Answer:
To remove ownloaded archive files from apt-get to save spaces, try the following command:
# sudo apt-get clean
So all the unneeded archive files will be removed.
