Fedora Tips
Fedora Linux Tips, Tricks, Fixes & More!
Note: Most of this information also pertains to CentOS, SuSE, Mandriva, and other RedHat derivatives
Setup yum repo for Google Chrome Web Browser:
cat << EOF > /etc/yum.repos.d/google-chrome.repo [google-chrome] name=google-chrome - \$basearch baseurl=http://dl.google.com/linux/chrome/rpm/stable/\$basearch enabled=1 gpgcheck=1 gpgkey=https://dl-ssl.google.com/linux/linux_signing_key.pub EOF
Boot Disk Info
HowTo's & Other Docs
Boot Images & Install Media
https://archives.fedoraproject.org/pub/archive/fedora/linux/releases/
Fedora Post Install Tips
About Fedy
Fedy makes installation of non-free stoftware, such as video and audio codecs, much easier!
Fedy Installation Process
Download the latest source code from github:
mkdir /tmp/fedy-src cd /tmp/fedy-src git clone https://github.com/satya164/fedy.git
Output from above command:
Cloning into 'fedy'... remote: Counting objects: 4529, done. remote: Compressing objects: 100% (6/6), done. remote: Total 4529 (delta 0), reused 0 (delta 0), pack-reused 4523 Receiving objects: 100% (4529/4529), 14.45 MiB | 4.77 MiB/s, done. Resolving deltas: 100% (2407/2407), done. Checking connectivity... done.
Compile & Install Fedy
cd fedy make
Output from Above Command:
install -dm755 /usr/bin/ install -dm755 /usr/share/fedy/ for f in *; do [[ $f != "plugins" ]] && cp -pr $f /usr/share/fedy/; done install -Dpm 0755 fedy.exec /usr/bin/fedy install -Dpm 0644 fedy.desktop /usr/share/applications/org.ozonos.fedy.desktop install -Dpm 0644 fedy.appdata.xml /usr/share/appdata/fedy.appdata.xml install -Dpm 0644 fedy.svg /usr/share/icons/hicolor/scalable/apps/fedy.svg install -Dpm 0644 fedy-symbolic.svg /usr/share/icons/hicolor/scalable/apps/fedy-symbolic.svg install -Dpm 0644 run-as-root.policy /usr/share/polkit-1/actions/org.ozonos.pkexec.run-as-root.policy gtk-update-icon-cache: Cache file created successfully.
You should now have a new icon for Fedy, which should look like this:
Check MySQL for SSL functionality:
show variables like '%ssl%';
Manual Network Configuration Using the Command Line
When setting up a LAMP app, if you get this error during config:
date.timezone not set
Edit /etc/php.ini and add:
date.timezone = America/Los_Angeles
Play video from webcam using MPlayer command line:
mplayer tv:// -tv driver=v4l2:width=640:height=480:device=/dev/video0
This example assumes that your webcam device is at /dev/video0
The resolution (width=??? & height=???) should be chosen to match the output of your device.
Use Mencoder to Record with MPlayer
Without Audio:
mencoder tv:// -tv driver=v4l2:width=320:height=240:device=/dev/video0 -ovc lavc -o webcam.avi
With Audio:
mencoder tv:// -tv driver=v4l2:width=320:height=240:device=/dev/video0:forceaudio:adevice=/dev/dsp1 -ovc lavc -oac mp3lame -lameopts cbr:br=64:mode=3 -o webcam.avi
More Info on Above:
Type 'man mencoder' for more info on the audio options.
/dev/dsp1 refers to the webcam USB Audio device.
/dev/dsp refers to the sound card.
Email Setup with Postfix, Dovecot & MySQL:
<a href="http://www.dawgland.com/wiki/Postfix_Dovecot_MySQL_HowTo.html">Local</a>
Change Time Zone on OS Using Command Line:
cp /usr/share/zoneinfo/Zone_You_Want to /etc/localtime overwriting the exisisting /etc/localtime file. Reboot and you are done!
OR
Use the new timedatectl utility!
As root, type timedatectl list-timezones to list available time zones to pick from
Then, type timedatectl set-timezone TimeZone_You_Want.
Fedora Core 17 bootup error message saying can't load font file "True". Fix for this error message is here:
According to the bug report, it's an anaconda bug which can't be fixed on an installed system, so the fix is to manually change it yourself.
Just manually change True every place it is used as a font name in the
following 3 files:
/boot/grub2/grub.cfg
/etc/sysconfig/i18n
/etc/default/grub
Typically it was latarcyrheb-sun16 on most systems.
You could use latarcyrheb-sun32 if you want a bigger font for boot messages
and in console screens.
sysfont probably has a default font it uses if not specified, so you probably could do without the sysfont parameter without any problems.
Link to bug report:
https://bugzilla.redhat.com/show_bug.cgi?id=799401
Linux System Configuration
Firewall Configuration & Information
Firewall Configuration
The easiest way to configure the firewall setup is to use the GUI within X-Windows.
This command can be run from an X-Windows terminal with the "/usr/bin/firewall-config" command.
Firewall Control
To Start & Stop the Firewall, use the new "systemctl" command instead of the old style "service" command, such as this:
[root@server ~]# systemctl stop firewalld.service
and
[root@server ~]# systemctl start firewalld.service