Network manager in Ubuntu 10.10

Not sure which version of Ubuntu has this been implemented.


# Previously

sudo etc/init.d/NetworkManager stop

# Updated

sudo etc/init.d/network-manager stop


Enabling bash completion

Uncomment the following in /etc/bash.bashrc


if [ -f /etc/bash_completion ]; then
. /etc/bash_completion
f


Hijacked keyboard shortcut

Somehow when I upgraded to Ubuntu 10.10, my "Shift + f" launches firefox.

Apparently that keybinding was assigned to run command_1 in metacity which was assigned to launch firefox. To disable it go to,

gconf > apps > metacity > global_keybindings

How to find hard disk partition of your ubuntu in terminal


df -h


Blank screen after resuming from suspend in Ubuntu

Of late I'm getting blank screen from suspend on my Ubuntu netbook after starting to use a second external monitor. Not sure the reason why but the fix for me is to hit "CTRL + ALT + F7".

Use mplayer to play stuttering web flash videos on browsers (high CPU load)

Playing web flash videos on my Ubuntu Firefox can yield super high CPU load as flash is poorly supported on Linux. Couple that with a sub-optimal Firefox Flashplayer plugin which causes CPU load to spike up to almost 100% and this makes the video stutter like mad.

One solution is to start and pause the video to initiate caching and use mplayer to play the cached flash video instead.

mplayer /tmp/Flash*

Now it plays smooth. Fullscreen? No problem. Just toggle "F" on your keyboard!

Share iTunes playlist and files over network using Ubuntu as fileserver

# Install mt-daapd
sudo apt-get install mt-daapd

# Edit mt-daapd.conf and specify media folder
sudo vi /etc/mt-daapd.conf

# Restart mt-daapd
sudo /etc/init.d/mt-daapd stop
sudo /etc/init.d/mt-daapd start

# Configurations can be done on webpage
# Remember to port forward 3689 to ubuntu machine
http://localhost:3689

No root user created for mysql in Ubuntu Hardy

/etc/init.d/mysql stop
mysqld --skip-grant-tables &
mysql -u root mysql
mysql> INSERT INTO user VALUES ('localhost','root',password('newpassword'),'Y','Y ','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y', 'Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','' ,'','','',0,0,0,0); 

Find ubuntu release and version on the command line

lsb_release

or 

cat /etc/lsb-release

HP F2410 printer on Ubuntu

Wanted a printer that works on Ubuntu. Did some research and realized HP printers are the most well supported.

https://wiki.ubuntu.com/HardwareSupportComponentsPrinters

Acquired a cheap SGD99.00 HP F2410 printer off local store. Installing it isn't as easy as plug and play but it's close enough. Essentially CUPS doesn't have the right PPD so it's off to HP website to download the the driver. They even provide a neat installation run file that does dependency checks!

http://hplipopensource.com/hplip-web/downloads.html

Printing well and scanning works with Xsane. At such a low price I can't be happier. I owe HP one!

Set Ubuntu to use Google DNS for internet

Sometimes my 2Wire router doesn't seem to route to the DNS properly. As such I can ping IP addresses but not domain names. To fix that just tell Ubuntu to use Google DNS (or any other free DNS service) directly.

# In /etc/dhcp3/dhclient.conf

prepend domain-name-servers 8.8.8.8, 8.8.4.4;

Cron log in Ubuntu

* Edit /etc/syslog.conf and uncomment the line starting with cron.*
* touch /var/log/cron.log
* Run /etc/init.d/rsyslog restart
* Run /etc/init.d/cron restart

Changing of syslog.conf location in Ubuntu Karmic

Old:

/etc/syslog.conf

New:

/etc/rsyslog.d/50-default

Changing timezone in terminal

sudo dpkg-reconfigure tzdata

SHOUTcast on Ubuntu

sudo apt-get install tunapie

Default image viewer on ubuntu

# Eog is the default image viewer in Ubuntu

eog image.jpg

[Solved] No sound on external speaker for eeePc running Ubuntu

My Ubuntu netbook suddenly stopped having sound from its external speakers. No such problem if using headphone jack.

The solution is simple --> I have accidentally switched "iSpeaker" off in "Volume Control > Preferences"

Joining 2 videos in Ubuntu

sudo apt-get install mencoder

cat video1.mpg video2.mpg > video12.mpg

Swap CAPS LOCK with CONTROL key

I've been using swapping CAPS LOCK with ESC key configuration. Trying out swapping CAPS LOCK with CONTROL key now.

Advantage:
- not having my pinkie wrangled to reach CONTROL Key at the bottom --> easier to do CTRL-C, CTRL-V, CTRL-A

Disadvantage:
- a big rewiring of finger memory as I've been using normal CONTROL key for years
- I need another keystroke for ESC sequence (CAPS LOCK + [) as compared to previous configuration (CAPS LOCK)

Reloading ALSA

I've encountered some errors while running Ardour and Hydrogen. The fix is simple --> restart/reload ALSA.

sudo /sbin/alsa force-reload