• 26.05.2011: Naar aanleiding van de forse tariefsverhoging van xs4all in 4/2011 is het overzicht nu aangepast.

Hierop gebaseerd kan eenvoudig een Asterisk dialplan ingesteld worden, zodat automatisch de gunstigste provider gekozen wordt.

Ook zijn er tegenwoordig wat alternatieve methoden dan VOIP om via bijvoorbeeld een applet op een smartphone te bellen tegen soms opmerkelijk interessante tarieven (per 14.08.2011):

In ‘extensions.conf’:

exten => _06X.     ,1,Macro(trunkdial,SIP/voipcheap/${EXTEN})   ;mobiel NL
exten => _08X.     ,1,Macro(trunkdial,SIP/xs4all/${EXTEN})      ;08xx nrs
exten => _09X.     ,1,Macro(trunkdial,SIP/xs4all/${EXTEN})      ;09xx nrs
exten => _1X.      ,1,Macro(trunkdial,SIP/xs4all/${EXTEN})      ;112, en zo
exten => _006221X. ,1,Macro(trunkdial,SIP/xs4all/${EXTEN})      ;Jakarta
exten => _00628X.  ,1,Macro(trunkdial,SIP/voipcheap/${EXTEN})   ;mobiel ID
exten => _0X.      ,1,Macro(trunkdial,SIP/lowratevoip/${EXTEN}) ;overig

Bovendien moeten de bijpassende login-gegevens gedefinieerd worden in sip.conf voor de verschillende accounts ‘xs4all’, ‘voipcheap’ en ‘lowratevoip’.

• ubuntu-restricted-extras: allerlei extra fonts, video codecs, etc.
• default-jre: installeer de java JRE
• geany: my favourite editor, very usefull for php, html, css, etc.
• meld: an easy diff program which also enables melding differences per line
• mozplugger: show PDF’s inside a tab of Firefox
• compizconfig-settings-manager: tune je desktop effecten
  • schakel de “Ring wisselaar” aan, zet daarbij “Volgende venster (alle werkruimten)” op toets Alt-Tab

And a bit of tuning:

• For 9.04 following command prohibits the pop-under of the upgrade program. It returns to the previous policy showing a notification icon:
  gconftool -s –type bool /apps/update-notifier/auto_launch false

apt-get install awstats
sudo chmod a+r /var/log/apache2/*
ln -s /usr/share/doc/awstats/examples/apache.conf /etc/apache2/conf.d/awstats
/etc/init.d/apache2 restart

Edit file /etc/logrotate.d/apache2:

• line ‘create 640 root adm’ into ‘create 644 root adm’

Edit file /etc/awstats/awstats.conf:

• line LogFile=… into LogFile=”/var/log/apache2/access.log”
• line LogFormat=… into LogFormat=1

Add to file /etc/awstats/awstats.conf.local:

SiteDomain="www.yourdomain.com"
HostAliases="localhost 127.0.0.1 alternative.yourdomain.com"
SkipFiles="REGEX[awstats|phpmyadmin]"

Edit file /etc/cron.d/awstats into:

0,10,20,30,40,50 * * * * www-data /usr/lib/cgi-bin/awstats.pl -config=www.yourdomain.com -update >/dev/null

After your set with this, check out this page if you’re interested how many visitors you get using the Chrome browser.

Although this method only grants very limited rights to the webserver, granting superrights to a web process might open up some security issues somehow. However family or co-workers simply pressing the on/off button on the server when something is not working and I’m not around is a worse problem in my opionion.

To grant the webserver the required right go to the command line and start sudo visudo.

Add following line to the file opened by the visudo command:

www-data        ALL=(ALL) NOPASSWD: /etc/init.d/asterisk restart

Where ‘www-data’ is the username your webserver is running on, ‘/etc/init.d/asterisk restart’ is the command you want to be executed.

Now create a php file asterisk.php like this:

<a href='asterisk.php?resetAsterisk=1'>Reset Asterisk</a>
<?php
if (isset($_GET['resetAsterisk'])) {
    print '<pre>';
    system('sudo /etc/init.d/asterisk restart');
    print '</pre>';
}
?>

Now restarting a process is realy just one click away!

WARNING[6511] chan_sip.c: Bad request protocol Packet

Turns out this messsage is some issue with an incompatible protocol with the XS4All account and it can be solved with:

sudo iptables -A INPUT -p udp -m udp –dport 5060 -m string –algo=bm –string KeepAlive -j DROP

Note: instead of the long dash before dport, algo and string you should type a double -. Some formatting issue of WordPress.

Met dank aan deze forum-post op tweakers.net .

Now I can make calls through several providers (xs4all, lowratevoip) based on dialing rules. Incoming calls also are working already and I just filed for the transfer of my old ISDN phoneline number to an xs4all voip account.

One of these days I’ll document my settings here, so it might help somebody somehow.

Opwaarderen: ga naar KPN

• Check for Java: javatester.org
• Check for Flash: macromedia.com

• Double-click / on a tab: ‘Move the tab to a new window’
• Ctrl-click / on a tab: ‘Duplicates the tab’

Dictionary Switcher
If you fill in forms in several languages and appreciate the spell-check feature of Firefox this simple extension is a must have!

Foxmarks Bookmark Synchronizer
Use your bookmarks on any computer!

Google Kladblok
Easely make notes that you can access on any computer.

Maybe not very useful, but still nice to see: an icon of the program used by the writer shows next to the header data.

Dictionary Switcher
If you compose messages in several languages this simple extension is a must have!

Lightning
An integrated calendar and tasklist for Thunderbird.

Provider voor Google Agenda
Synchronize Lightning with Google Calendar

Zindus
Synchronize contacts with Google Gmail.