Currently on the browser market there are 5 big players. Each of them has started implementing HTML 5 support. A standard that promise a new online revolution.

Firefox - 3.5 - good HTML 5 support - Company : Mozilla
Opera -9.6 - good HTML 5 support - Company : Opera
Chrome - 2.0 - limited HTML 5 support - Company : Google
Safari - 4.0 - good HTML 5 support - Company : Apple
Internet Explorer - 8.0 - very limited HTML 5 support - Company Microsoft




All good and interesting but one special feature brought a lot of attention is the last months: the video tag. This tag wanted to define a standard video codec for all browsers. The most discussed codecs where :

H.264 - it's propertary , it’s not free( MPEG ) , and it's popular
Ogg Theora - free and open source , not popular , pattens issues

Browsers position regarding Ogg Theora

Pro
Firefox
Opera

Against
Chrome - they won't put this on Youtube because of performance issues
Safari - Apple's concern regarding patents
IE

Brower position regarding H.264

Pro
Chrome
Safari

Against
Opera
Firefox
IE


Adobe Macromedia Flash is the winner. The support for flash is cross-browsers and they really don't want to see a standard overthrown them.

In the end the conclusion is that:

HTML 5 will not specify a single codec for Web development.


Great HTML 5 - video tag exemple.

It's very sad to see that a lot of people are still misspelling the word Ubuntu. They end up in a corner of the Internet and never find this kick-ass operating system.

The most popular misspellings are : ubantu, unbuntu and ubunto. Keep in mind there is only a right way when it comes to a great OS and it's called UBUNTU.

From time to time, I have the opportunity to encounter different problems while working with Ubuntu. I like the challenging so I collect and write down most of the interesting things I found.



Iptables

1.iptables -L --line-numbers
# will list all the rules
2.iptables -A INPUT -p tcp -j ACCEPT -s IP/MASK
# will open ports for the desired network
# A is from append ( it will add it at the end of the rules chain)
3. sudo iptables -D INPUT X
#will delete the line X
4. iptables-save > /root/dsl.fw
iptables-restore < /root/dsl.fw #save and restore your rules 5. complete informations ( link )

Netstat

1.netstat -n [very fast - no host resolution ]
2.netstat -tpanl | grep ESTA [use it to discovere active connection]
3.netstat -pl [use it to find on what port an application is listening ]

Service

1.service ssh ( just try it and see what happens)

Ubuntu is one of the best linux distributions. Each version of Ubuntu has a special creature name and an adjective near to it :

• Ubuntu 6.06.2 LTS (Dapper Drake)
• Ubuntu 6.10 (Edgy Eft)
• Ubuntu 7.04 (Feisty Fawn)
• Ubuntu 7.10 (Gutsy Gibbon)
• Ubuntu 8.04.2 LTS (Hardy Heron)
• Ubuntu 8.10 (Intrepid Ibex)
• Ubuntu 9.04 (Jaunty Jackalope)

Ubuntu 8.0.4 is actually version 8.04. To make things clear the corect name for Ubuntu 9.0.4 is also 9.04. To remember this you only have to think when Ubuntu is released each year. From six to six months a new version is ready for production.

The first number 8 or 9 represents the year of the distribution ( 2008 or 2009 ). The next group of numbers (04 or 10 ) represents the month in the year when the OS is ready. The hardest part is to remember the creature name Ubuntu team comes up with each time.

Distributions : Ubuntu 8.10/9.04

A few days a ago the Pidgin application stopped working. Actually the real problem is only the yahoo server ( you can test MSN accounts to see they still work ).

The fix is really simple : change the default pager server in your advance user account.

One server that seems to work is : cs101.msg.mud.yahoo.com

Restart and log in.

Update : 27.06.2009
To make pidgin work install Pidgin 2.5.7 , delete your accounts and create them again ( to use the default server settings).

There are a lot of places where you can find help, resources and support but this list is the perfect round-up for an Ubuntu Noob.

1.Ubuntu Forum - Link




Driver problems, upgrade frustration, unanswered question ? This is the place where you will probably get your answer. Don't just post your question, use a quick search first because your problems already might have a solution.

2. Get Deb - Link



You want a quick and up to date deb file to install on your distribution? This is the best way to get your compiled files and install them from a trusty place.

3.IRC channel

If you remember the old Mirc here is a secret : it's still alive. Connect to Freenode network (irc.freenode.net) #Ubuntu and wait for somebody to give you the answer. Be polity and don't repeat to often. If you want a quick way to access it install an extention for Firefox called ChatZilla.

4.Deviant Art - Link



You are in search for the perfect wallpaper ? A great set of icons or any other kind of graphic design? This is the place to get it. Free,quick and close to perfection.

5.KDE APPS - Link



Are you a KDE fan ? No problem. This websites keeps you up to date with both graphic resources and 100% free applications fully compatible and created for KDE.

6.GNOME FILES - Link



Gnome fans are not forgotten. A really good list with different sofware and links to official websites. The rss feed will keep you up to date with all the new updates.

7. OS ALTernative - LINK



Now this is something you might enjoy. Do you like a windows applications and want the perfect replacement ? Use this site by writing your app name and get the best matches for open source software that does the same thing in a similar way.

8.Digg Linux - LINK



Everybody knows digg but with this category access to quick and useful linux tips is even better. This is a mashup of news and articles submited and voted by users.

9.Blogs - LINK



Let's not forget the source for all the articles and news : the blogs. This great article has round-up 25 websites related with Ubuntu.

Any other suggestions ? If so , please write a comment and let us know.

Ubuntu is not necessary more secure then Windows. If the popularity of this OS will grow like it did until now a lot of tricks will appear that will make your entire experience a nightmare.

One of the advice I have for you is : Never install something outside the repository. The applications you can find in the repository are safe and won't crush your system. The developers work a lot to keep this up to date so in general this is not a big problem. When you decide you must have the last update from a software and it's not yet available in the repos what you need to do is visit the site
http://www.getdeb.net. There you will find the deb files that are relative safe and easy to install.



If you are an expert user you will add new repositories or compile from the source files but I guess you know what you're doing and this is boring for you.

So all the noobs out there remember : don't add new repositories , don't try to compile something from scratch and never ever run commands in your terminal with sudo if you don't know what they do.