Many times can happen that during the upgrade can be some problems with that operation, and for this one you can’t use your ubuntu any more. In Internet I’ve found this solution that allows the restore of the system using few steps. For making it it’s necessary use a live distribution, an ubuntu 8.10 desktop live for example, make the reboot of the pc and from terminal

$: sudo mkdir /mnt/ubuntu
$: sudo mount /dev/hda1 /mnt/ubuntu
$: sudo cp /etc/resolv.conf /mnt/ubuntu/etc/resolv.conf
$: sudo chroot /mnt/ubuntu

at this point we can procced with the upgrade again.

$: sudo apt-get update && sudo apt-get dist-upgrade

and, if necessary, make the reinstall of grub

“bye, and see you soon to the next howto”

The second part about the configuration of asterisk is ready. After have seen an easy configuration of asterisk I’ve decided to complicate the situation. Making this, I made the registration to a provider (Eutelia) to have a telephone number to use on my server1 (s1). In this way the two desktops can make or receive calls, using this telephone number, from/to an external number. This operation passes through the s1. As in the first part as in this last howto, I’ve used a virtual lan created it with virtualbox. In summary I’ve a server (s1) where is installed asterisk and two desktops (d2 and d3). Using skype, with a minimal of credit, call one of two ekiga using their internal number phone.

Read more on this Article!

This’s a another personal note about the network. With this easy comands we can find all IP’s address actived on all your Lan. The comands in used are the following:

$: sudo nmap -v -sP 192.168.1.0/24

or with more specifies

$: nmap -v -sP 192.168.1.0/24 | grep -v "appears to be down"

“bye, and see you soon to the next howto”

Last night I found an interesting script that helps us to install new fonts on our ubuntu. The script is the following

#!/bin/bash

#

# Autore: Mosconi Marco (brus46)

# Licenza: GPL 2 or later

#

gksu mkdir /usr/share/fonts/truetype/myfonts

for arg do

files=`echo “$arg” | sed ’s/ /\\ /g’`

gksu cp “${files}” /usr/share/fonts/truetype/myfonts/

zenity –title=FontInstaller –info –text=”${files}”

done

gksu fc-cache -f -v

zenity –title=FontInstaller –info –text=”Fonts installed”

exit 0

save it with this name “Installer Fonts” and change the permission in executive. Then move it in /home/user/.gnome2/nautilus-scripts/.

$: mv /home/user/Desktop/Installer Fonts /home/user/.gnome2/nautilus-scripts/

At this point select your new font and install it.

“bye, and see you soon to the next howto”

the last number of Full Circle is out. The download of the issue 18 is available in the following link

• http://fullcirclemagazine.org/download-manager.php?id=100

enjoy your read to everyone

so, if you need read the old numbers of the Magazine you can using this one and do the download

• http://fullcirclemagazine.org/downloads/

This time used the combination between icecast and ices2 I made an audio streaming server using ubuntu 8.10 server edition. The first part is very easy we have to just modify some tags of file /etc/icecast2/icecast.xml in this way

<admin-user>admin</admin-user>

<admin-password>hackme</admin-password>

insert a new parameters for the nickname and the password. Like this one

Read more on this Article!

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With this howto I want to show you how is easy to create a web radio server using just few steps. Web radio allows us to heard the radio on all our lan, in my case it’s a virtual lan. For more details about this project the link to use is this

http://www.icecast.org/

to be more clear icecast is a free server software for streaming multimedia. The first important thing to make is set the server in “Single Broadcast Relay”, with the instruction On Demand actived. To install it we can use our apt

$: sudo apt-get install icecast2

the configuration is very easy, the first step to make is modify the file of configuration

$: sudo nano /etc/icecast2/icecast.xml

 Read more on this Article!
			

Ok, to clone a virtual operating system, already present on virtualbox, is very easy. It’s necesary to use this comand, changing the name of the system, to have a clone of virtual machine

$:  VBoxManage clonevdi default_machine.vdi new_machine.vdi

In this way it isn’t necessary to install every time a new virtual machine. Remember to make also this operation

$: sudo nano /etc/udev/rules.d/70-persistent-net.rules

and delete the voices

# PCI device xxxxxx:xxxxxx (module)

SUBSYSTEM==”net”, DRIVERS==”?*”, ATTRS{address}==”xx:xx:xx:xx:xx:xx”, NAME=”eth0″

and to end reload udev

$: sudo /etc/inid.d/udev restart

“bye, and see you soon to the next howto”

This howto will show you how is possible to active and configuration domains of second level. An example could be subdomain.localhost.com, this configuration is done using apache2 and Ubuntu 8.10 Server Edition, apache2 has to be already installed. Begin by coping the file default

$: sudo cp /etc/apache2/sites-available/default /etc/apache2/sites-available/subdomain1

open it and add these lines, like the following files

Read more on this Article!

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webmin:

is a web-based interface for system administration for Linux.
Using any modern web browser, you can setup any server applications as Apache2, FTP, DNS, NFS, firewall and much more. This easy tutorial will explain how to Install
Webmin in Ubuntu 8.10 server edition.

lamp:

is used to run dynamic Web sites or servers. The system is composed from:

• Gnu/Linux Ubuntu 8.10 Server Edition
• Apache, the Web server;
• MySQL, the database server;
• PHP or others, i.e. Perl, Python, the programming languages.

The combination of these is used to define a web server infrastructure, and using webmin we can setup all of these technologies. After these few words we can proceed with the installation of both system. Beginnig with the installation of lamp. Following you will find the comands I used to make it. Using the terminal I launched these comands

$: sudo apt-get install mysql-server-5.0  php5 php5-common php5-dev php5-mysql apache2 apache2-mpm-prefork libapache2-mod-php5 

at this time we can install webmin.

$: sudo wget http://garr.dl.sourceforge.net/sourceforge/webadmin/webmin_1.441_all.deb
$: sudo dpkg -i webmin_1.441_all.deb

Now we have webmin_1.441_all.deb package installed on our Ubuntu 8.10 Server Edition. To manage the infrastructure of our server we have to open a remote browser and write in the address bar this

https://your_server_IP:10000/

Now you should see the following screen

“bye, and see you soon to the next howto”