Emmabuntus, Ubuntu, Derivate, Linux, Open Source BackTrack, Linux, distributions, Ubuntu, derivate, securuty, forensic VirtualBox, Linux, Ubuntu, Raring Ringtail synaptic, Ubuntu, Linux, software packages jwplayer, multimedia, Linux, Ubuntu, flash Meshlab, graphic, software, Ubuntu, open source, Linux Synapse, Linux, Ubuntu, raring, Quantal Gimp, Ubuntu, Linux FreeMind, Linux, open source Linux, infographic, history

Ubuntu 14.04 “Trusty Tahr”: Tips and Troubleshooting.

1.- Run Command.

You can run any application in your path using the Run Command. Use Alt+F2.

 

2.- Turn off Hot Keys.

This is the most evil option on any operating system, in my opinion. A mis-stroke enables any number of random events. Unfortunately, this problem is pervasive in operating systems and is difficult to turn off.

 

Menu -> System -> Administration-> Advanced -> Input Actions -> General Settings -> check "Disable KHotKeys daemon"
 
Menu -> System -> Administration-> Advanced -> Input Actions -> Gestures Settings -> check "Disable mouse gestures globally"
 

If you wish to be selective about it (this doesn't often work, however), start by disabling unnecessary desktop hotkeys.

Menu -> System -> Administration-> Advanced -> Keyboard & Mouse –> Keyboard
tips-and-tricks
3.- Shortcuts.

Also, you may want to deactivate linking gestures to sticky and slow keys:

Menu -> System -> Administration -> Accessibility -> Activation Gestures -> uncheck "Use gestures for activating sticky keys and slow keys"

Note: You probably will have to disable hotkeys in many applications, as well.

Hotkeys from the Synaptics Touchpad can be selectively turned off using this information from the Ubuntu documentation.
 
4.- Associate default applications.
  • To assign the default DVD player (make sure you have enabled DVD playback capability first:
Menu -> System -> Administration-> Advanced -> File Associations -> x-content -> video-dvd -> Applications Preference order -> Add...
then choose your favourite media player. There are similar options for Blu-Ray (video-bluray) and HD DVD (video-hddvd). Set each individually.
  • To assign the default player for playing mpegs (or other video formats):
Menu -> System -> Administration-> Advanced -> File Associations -> video -> mpeg -> Applications Preference order -> Add...
then choose your favourite media player. You can do this for a host of video file formats, including .wmv (x-ms-wmv, or Microsoft WMV format), .flv (x-flv, or Flash video), quicktime, and so on.
  • To assign .pls audio streams to play through Audacious:
Menu -> System -> Administration-> Advanced -> File Associations -> audio -> x-scpls -> Applications Preference order -> Move Audacious to the top (or Add... it).
Make sure *.pls appears in the Filename Patterns section.
 
5.- Automatic user login.
  • To accomplish this (yet still require a user password):
Menu -> System -> System Settings -> Login Manager -> Convenience -> Enable Auto-Login (ticked) -> Lock session (ticked)
-> Pre-select user: Specified: Choose primary user
  • This ought to be combined with a password-protected screensaver.

6.- Autostart a program at bootup.

Any program (or script) can be made to Autostart at bootup by creating a symbolic link to that program (or script) in the ~/.config/autostart folder.

For example, to start Firefox at bootup, create a symbolic link:

sudo ln -s /usr/bin/firefox ~/.config/autostart

 

Choose Bootup/Startup services.

Preventing unneeded or unwanted services from loading at startup can improve system performance.

  • Install the GTK-based Bootup-Manager: sudo apt-get install bum
  • Run Bootup-Manager: Menu -> System -> Bootup-Manager
 7.- Run a script from a menu item.

It is possible to place a short script in a menu item / shortcut to answer an interactive query (such as a password query). Here is an example that is used to enter a password during an SSH negotiation. First, install the utility expect:

 

sudo apt-get install expect

 

The use a command in the Menu Item / Shortcut similar to:

 

expect -c 'spawn ssh -l sshuser -L 5900:127.0.0.1:5900 remoteserver.remotedomain.org -p 22 ; expect assword ; send "sshpassword\n" ; interact'

In this example the password sshpassword is returned when the ssh program requires a password. Expect waits for some text to be displayed in the command-line terminal then returns text in return. The Menu Item must be "Run in terminal", therefore.

If you liked this article, subscribe to the feed by clicking the image below to keep informed about new contents of the blog:

rss_trappola

Do you consider this article interesting? Share it on your network of Twitter contacts, on your Facebook wall or simply press "+1" to suggest this result in searches in Google, Linkedin, Instagram or Pinterest. Spreading content that you find relevant helps this blog to grow. Thank you!
Share on Google Plus

About Hugo

Ubuntu is a Linux distribution that offers an operating system predominantly focused on desktop computers but also provides support for servers. Based on Debian GNU / Linux, Ubuntu focuses on ease of use, freedom in usage restriction, regular releases (every 6 months) and ease of installation.
    Blogger Comment
    Facebook Comment

0 comments:

Post a Comment