Install native 64bit Flash Player 11 on Linux
Update 3 [30 10 2011]: The script was updated to install of Flash Player 11.2 Beta
Update 2 [7 09 2011]: The script was updated to install rc1 of Flash Player 11
Update 1 [13 08 2011]: The script was updated to install b2 of Flash Player 11
Abobe released yesterday the first beta of Flash Player 11 for Linux 64 bit.
I've put together a small script that takes care of installing it on Ubuntu:
#!/bin/bash # Script created by # Romeo-Adrian Cioaba romeo.cioaba@spotonearth.com echo "Stopping any Firefox that might be running" sudo killall -9 firefox echo "Removing any other flash plugin previously installed:" sudo apt-get remove -y --purge flashplugin-nonfree gnash gnash-common mozilla-plugin-gnash swfdec-mozilla libflashsupport nspluginwrapper sudo rm -f /usr/lib/mozilla/plugins/*flash* sudo rm -f ~/.mozilla/plugins/*flash* sudo rm -f /usr/lib/firefox/plugins/*flash* sudo rm -f /usr/lib/firefox-addons/plugins/*flash* sudo rm -rfd /usr/lib/nspluginwrapper echo "Installing Flash Player 11" cd ~ wget 'http://download.macromedia.com/pub/labs/flashplatformruntimes/flashplayer11-2/flashplayer11-2_p1_install_lin_64_102611.tar.gz' tar zxvf flashplayer11-2_p1_install_lin_64_102611.tar.gz sudo cp libflashplayer.so /usr/lib/mozilla/plugins/ sudo cp -r usr/ /usr echo "Linking the libraries so Firefox and apps depending on XULRunner (vuze, liferea, rsswol) can find it." sudo ln -sf /usr/lib/mozilla/plugins/libflashplayer.so /usr/lib/firefox-addons/plugins/ sudo ln -sf /usr/lib/mozilla/plugins/libflashplayer.so /usr/lib/xulrunner-addons/plugins/ # now doing some cleaning up: sudo rm -rf libflashplayer.so sudo rm -rf usr/ sudo rm -rf flashplayer11-2_p1_install_lin_64_102611.tar.gz
A very interesting application that comes bundled in this release is the "flash-player-properties" app which allows us to finally be able to set permissions to mic/camera on websites.
Print a text file to PDF from CLI on Linux
It is nice how modern text editors have that feature to "print" a file to PDF. I wanted to do the same from CLI and after a bit of looking around i've found this solution:
sudo apt-get install enscript enscript lorem.txt -o - | ps2pdf - lorem.pdf
There is also the unoconv, which converts between any document format that OpenOffice understands. It uses OpenOffice's UNO bindings for non-interactive conversion of documents.
Supported document formats include Open Document Format (.odt), MS Word (.doc), MS Office Open/MS OOXML (.xml), Portable Document Format (.pdf), HTML, XHTML, RTF, Docbook (.xml), and more.
Features:
Converts between different document formats that OpenOffice understands
OpenOffice can export to about 100 different document formats
Can be used for batch processing
Combines with asciidoc and docbook2odf/xhtml2odt to create PDF or Word (.doc) files
Can apply custom style templates during conversion (to enforce corporate identity)
Autostarts OpenOffice for processing if necessary
Can be used in a client/server environment to process documents centrally
Can influence OpenOffice filters during import and export
Supports OpenOffice on Linux, Windows and MacOSX
How to: Replace OpenOffice.org with LibreOffice on Ubuntu
Here are a few easy steps to replace openoffice.org with libreoffice on ubuntu:
CLI instructions (these will take care of removing OpenOffice.org and installing LibreOffice):
Add the PPA and install LibreOffice:
sudo add-apt-repository ppa:libreoffice/ppa sudo apt-get update sudo apt-get install libreoffice
For GNOME integration (for people running default Ubuntu):
sudo apt-get install libreoffice-gnome
or for KDE Integration (for people running Kubuntu):
sudo apt-get install libreoffice-kde
As of Ubuntu 11.04, LibreOffice will replace by default OpenOffice.
Fix gitk ugly fonts in Ubuntu
I've recently started playing around with git and found out the power of gitk. Gitk is a small tool built using tcl/tk that helps the user visualize the changes he's done in a graphical, easy to follow manner. By default Ubuntu 10.10 ships with tk8.4 installed by default and that makes gitk look really ugly, as tk8.4 doesn't support antialiased fonts. To fix this problem simply install tk8.5 and make it default on your machine:
sudo apt-get install tk8.5 sudo update-alternatives --config wish # a list will show up and you need to type in the number that corresponds to tk8.5 (in my case was 3) then hit enter.
That's it. You can now reopen gitk and see the difference.
Find string in files and show line number with grep
Handy snippet to find some string inside the files in a directory:
grep -r --line-number "string_you_search" path/where/to/look
Note the -r tells grep also to look into all subfolders recursively.
Setup VPN server and client using OpenVPN
The good thing during the last years is that net access is almost everywhere, and is pretty cheap or even free. A lot of bars, hotels, restaurants offer a free wifi connection, but most of the times that connection is not secured. The biggest security risk with unencrypted connections is the man-in-the-middle type of attack. You are sitting on a bar, checking email, browsing and all your traffic is not encrypted. That means that an attacker can tap into your connection and "listen", intercept everything you are typing. Like that the attacker can get sensitive data (accounts, passwords, credit card numbers etc.)
Since you don't have any control over the connection, what one can do to protect himself is to use a VPN. With a VPN, you are creating a secure (encrypted) point-to-point connection between your PC and the VPN server. Translated, that means that all the Internet traffic you are doing, is going through that secure channel, which can't be hacked that easily.
Here us how to setup a vpn server using openVPN
The server
1. Install openvpn and openssl
sudo apt-get install openvpn libssl-dev openssl
2. Configurations
cd /etc/openvpn/ cp -r /usr/share/doc/openvpn/examples/easy-rsa/2.0/* /etc/openvpn/easy-rsa/
3. Create server certificates
cd /etc/openvpn/easy-rsa/ source vars ./clean-all ./build-dh ./pkitool --initca ./pkitool --server server cd keys openvpn --genkey --secret ta.key cp server.crt server.key ca.crt dh1024.pem ta.key /etc/openvpn/
4. Create client certificates
cd /etc/openvpn/easy-rsa/ source vars ./pkitool hostname
For each new client that connects to the VPN you'll need to create new client certificates using step 4
5. Create server configuration file:
cp /usr/share/doc/openvpn/examples/sample-config-files/server.conf.gz /etc/openvpn/ gzip -d /etc/openvpn/server.conf.gz
After editing your file should look like this:
dev tun proto tcp port 1194 ca ca.crt cert server.crt key server.key dh dh1024.pem user nobody group nogroup server 10.10.0.0 255.255.255.0 persist-key persist-tun client-to-client push "redirect-gateway def1" push "dhcp-option DNS 208.67.222.222" push "dhcp-option DNS 208.67.220.220"
6. Enable routing and MASQUERADE for your VPN by placing the following in your /etc/rc.local
echo 1 > /proc/sys/net/ipv4/ip_forward iptables -t nat -A POSTROUTING -s 10.10.0.0/24 -o eth0 -j MASQUERADE
7. Start the server
/etc/rc.local /etc/init.d/openvpn restart
The Client
1. Ubuntu (all modern linux?)
I'm using an Ubuntu machine as a client. To use openvpn in Ubuntu just install the openvpn plugin for NetworkManager:
sudo apt-get install network-manager-openvpn
A reboot is recommended.
You can now go and add your connection in Network Manager
2. Windows - to come
3. Mac OS X - to come
Install Adobe® Flash® Player “Square” on Linux
Adobe® Flash® Player "Square" is a preview release that enables native 64-bit support on Linux, Mac OS, and Windows operating systems, as well as enhanced support for Microsoft Internet Explorer 9 beta.
I'm glad to see Adobe has is finally embracing the way it should the 64 bit Platform. This release is a milestone as far as i know, as is the first one that's released in the same time for win, mac and linux. I've put together a small tutorial on
how to install adobe flash player square on linux:
#!/bin/bash # Script created by # Romeo-Adrian Cioaba romeo.cioaba@spotonearth.com echo "Stopping any Firefox that might be running" sudo killall -9 firefox echo "Removing any other flash plugin previously installed:" sudo apt-get remove -y --purge flashplugin-nonfree gnash gnash-common mozilla-plugin-gnash swfdec-mozilla libflashsupport nspluginwrapper sudo rm -f /usr/lib/mozilla/plugins/*flash* sudo rm -f ~/.mozilla/plugins/*flash* sudo rm -f /usr/lib/firefox/plugins/*flash* sudo rm -f /usr/lib/firefox-addons/plugins/*flash* sudo rm -rfd /usr/lib/nspluginwrapper echo "Installing Flash Player Square" cd ~ # 64 bit wget http://download.macromedia.com/pub/labs/flashplayer10/flashplayer_square_p1_64bit_linux_091510.tar.gz tar zxvf flashplayer_square_p1_64bit_linux_091510.tar.gz # 32 bit # wget http://download.macromedia.com/pub/labs/flashplayer10/flashplayer_square_p1_32bit_linux_091510.tar.gz # tar zxvf flashplayer_square_p1_32bit_linux_091510.tar.gz sudo cp libflashplayer.so /usr/lib/mozilla/plugins/ echo "Linking the libraries so Firefox and apps depending on XULRunner (vuze, liferea, rsswol) can find it." sudo ln -sf /usr/lib/mozilla/plugins/libflashplayer.so /usr/lib/firefox-addons/plugins/ sudo ln -sf /usr/lib/mozilla/plugins/libflashplayer.so /usr/lib/xulrunner-addons/plugins/ # now doing some cleaning up: sudo rm -rf libflashplayer.so sudo rm -rf flashplayer_square_p1_64bit_linux_091510.tar.gz
To check if the install did it's job, you need to check about:plugins in your address bar. It should show you this for flash player:
Shockwave Flash
- File: libflashplayer.so
- Version:
- Shockwave Flash 10.2 d161
| MIME Type | Description | Suffixes | Enabled |
|---|---|---|---|
| application/x-shockwave-flash | Shockwave Flash | swf | Yes |
| application/futuresplash | FutureSplash Player | spl | Yes |
As usual, I've wrapped everything mentioned before into a script to easily install flash player square on Linux
If this version doesn't work out that well for you, you can still check my other tutorial on how to install native 64bit flash player on Linux
Happy browsing!
CLI Disk Usage
Modern Linux systems have plenty of tools for both Gnome and Kde to analyze the disk space. But if you log into a server via SSH or similar, you're out of luck. You need a tool for Cli Disk Usage analytics. That tool is ncdu.
You can install it easy:
sudo apt-get install ncdu
Issuing ncdu inside the folder you want to check will open a cool ncurses interface, really easy to use 
Converting disc images to another format on Linux
While this information is available all over the net, i find myself losing enough time now and again trying to figure out how to convert a disk image to iso or something useful for that matter. So i decided to put together a small tutorial on converting disk images to another format on Linux, so i can easily access it whenever i need it.
The most popular disk image formats i've had to deal with are: iso (which Ubuntu handles by default perfectly), CloneCD/IMG (used by CloneCD), CUE/BIN, MDF (created by Alcohol 120%), NRG (Nero images) and last but not least DMG (format used mainly by Apple).
Since Linux handles very well .iso files, the idea is to convert any of the image types listed into iso and then the job is easy. For all of the formats there are tools to do just that. You can install them as follows:
sudo apt-get install ccd2iso bchunk mdf2iso nrg2iso dmg2img
Example usage:
# ccd ccd2iso /path/to/example.img /path/to/example.iso # bin/cue bchunk /path/to/example.bin /path/to/example.cue /path/to/example.iso # mdf mdf2iso /path/to/example.mdf /path/to/example.iso # nrg nrg2iso /path/to/example.nrg /path/to/example.iso # dmg dmg2img filename.dmg
Some of those formats can be also mounted using the CLI:
# ccd/img sudo mount -o loop example.img /media/example # nrg sudo mount -o loop,offset=307200 /path/to/example.nrg /media/example # dmg dmg2img /path/to/example.dmg /path/to/example.img sudo modprobe hfsplus sudo mount -t hfsplus -o loop example.img /media/example
Setting up Xdebug with Zend Server on Linux
Since our team work on different operating system, we switched for custom apache/php/mysql installs to Zend Server. Before everyone was using something different (the guys on windows were using XAMP, WAMP, on ubuntu i was using the packages in the repo and on the server we're using apache from cPanel) and applications were behaving a differently according to the default settings for all those platforms.
So we decided to install Zend Server CE as it has more or less the same settings over different platforms. I've had some bad experiences installing ZSCE on a system that already had apache installed via apt, but after a clear install of Karmic, ZF was running like a charm. The install process described in the online documentation works great.
After install is done, make sure to symlink php, pecl, pear and phpize so you can access them system wide:
sudo ln -s /usr/local/zend/bin/zendctl.sh /usr/sbin/zendctl sudo ln -s /usr/local/zend/bin/pear /usr/sbin/pear sudo ln -s /usr/local/zend/bin/pecl /usr/sbin/pecl sudo ln -s /usr/local/zend/bin/php /usr/sbin/php sudo ln -s /usr/local/zend/bin/phpize /usr/sbin/phpize
At this point you should be able to run php -i in terminal and the phpinfo will be displayed.
Next step is to install xdebug via pecl by running:
sudo pecl install xdebug
If all went well you should have the xdebug library located at /usr/local/zend/lib/php_extensions/xdebug.so . If you don't have it there, then something went wrong and you should NOT continue reading. This issue must be sorted first.
Next you need to comment out the 1st line of /usr/local/zend/etc/conf.d/debugger.ini so it looks like this:
#open editor gksu gedit /usr/local/zend/etc/conf.d/debugger.ini # this is how the 1st two lines should look afterwards ; register the extension to be loaded by Zend Extension Manager ;zend_extension_manager.dir.debugger=/usr/local/zend/lib/debugger
Xdebug needs to be loaded before Zend Extension Manager, that's why you need to add the following line just on top of the /usr/local/zend/etc/ext.d/extension_manager.ini
#open the editor gksu gedit /usr/local/zend/etc/ext.d/extension_manager.ini #add this line on 1st line: zend_extension=/usr/local/zend/lib/php_extensions/xdebug.so #save the file
Restart zend server by running:
sudo /etc/init.d/zend-server restart
You can check if xdebug is working like so:
php -i |grep xdebug
The output should be something similar to this:
xdebug xdebug support => enabled xdebug.auto_trace => Off => Off xdebug.collect_includes => On => On xdebug.collect_params => 0 => 0 xdebug.collect_return => Off => Off xdebug.collect_vars => Off => Off xdebug.default_enable => On => On xdebug.dump.COOKIE => no value => no value xdebug.dump.ENV => no value => no value xdebug.dump.FILES => no value => no value xdebug.dump.GET => no value => no value xdebug.dump.POST => no value => no value xdebug.dump.REQUEST => no value => no value xdebug.dump.SERVER => no value => no value xdebug.dump.SESSION => no value => no value xdebug.dump_globals => On => On xdebug.dump_once => On => On xdebug.dump_undefined => Off => Off xdebug.extended_info => On => On xdebug.idekey => mimir => no value xdebug.manual_url => http://www.php.net => http://www.php.net xdebug.max_nesting_level => 100 => 100 xdebug.profiler_aggregate => Off => Off xdebug.profiler_append => Off => Off xdebug.profiler_enable => Off => Off xdebug.profiler_enable_trigger => Off => Off xdebug.profiler_output_dir => /tmp => /tmp xdebug.profiler_output_name => cachegrind.out.%p => cachegrind.out.%p xdebug.remote_autostart => Off => Off xdebug.remote_enable => Off => Off xdebug.remote_handler => dbgp => dbgp xdebug.remote_host => localhost => localhost xdebug.remote_log => no value => no value xdebug.remote_mode => req => req xdebug.remote_port => 9000 => 9000 xdebug.show_exception_trace => Off => Off xdebug.show_local_vars => Off => Off xdebug.show_mem_delta => Off => Off xdebug.trace_format => 0 => 0 xdebug.trace_options => 0 => 0 xdebug.trace_output_dir => /tmp => /tmp xdebug.trace_output_name => trace.%c => trace.%c xdebug.var_display_max_children => 128 => 128 xdebug.var_display_max_data => 512 => 512 xdebug.var_display_max_depth => 3 => 3
Note the xdebug support => enabled on line 2.
Hope that helps
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