Are PPA's safe to add to my system and what are some “red flags” to watch out for?

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It's all very simple once you get the hang of it. I have run into problems here and there, but generally speaking, PPA's are the only way to get your software updated in Ubuntu between distro releases (don't get me into a rant about that). It's too much to explain here, so I will point you to some worthwhile documentation. But first, a few simple rules:

Know what you're installing. Most likely you'll use Launchpad for the majority of your PPA needs, but even so it can be dangerous to your computer. Usually the worry for me is not malicious intent, but conflicting packages. If package A requires a modified version of ffmpeg, and package B in a different repository requires a modified version of ffmpeg too, well, now there's a good chance you might not be able to watch videos, for example, with package A or B or at all.

Keep in mind that anyone can create a PPA, even you. Just because a person signs the Code of Conduct doesn't mean they know what they're doing. On...

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Psyke83’s on the Ubuntu Forums wrote a ‘script’ to do this for PulseAudio.

Ubuntu 10.10:

Currently the easiest method is to install from a deb created by WebUp8.

Ubuntu 10.04 and below:

There is a PPA containing the equalizer:

sudo add-apt-repository ppa:psyke83/ppa sudo apt-get update && sudo apt-get install pulseaudio-equalizer

I was looking for a graphical eq package for Ubuntu 12.04 and found this post. Thanks a lot for this!

Unfortunately the link provided for WebUp8’s deb is no longer valid, but there’s this one that I found hosted on and works perfectly.

I found that the easiest way of installing it is via the deb package. Installs right away w/o hassle. And this little thingy works, eh? Even stays permanently after a reboot! System-wide all the way**.

**Actually, I realized why: the eq application is just a frontend for adjusting the DSP’s eq settings in PulseAudio; so...

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I have a new VPN with Ubuntu server 10.04 LTS which came with Mysql 5.1 installed, that was not supporting Barracuda file formats, so I manually installed and configured Mysql 5.6. Which works perfectly so far.

Apache2 is working well too, so far (haven't been testing it a lot but seems stable).

Only thing is that PHP5 was not recognising the module for PDO, so i removed it.

Is there a way I can MANUALLY install PHP5 or any version of PHP on Ubuntu ?

If I do apt-get install php5 it says

root@vps:/etc# sudo apt-get install php5 Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies:...
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Other Tips. I have no wireless on my desktop. When I try to connect using the wireless icon on the panel, it says: Ethernet Network (Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller disconnected. How can I fix this to have my desktop connect to my wireless router without running an ethernet cable? sudo lshw -C network *-network description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:02:00.0 logical name: eno1 version: 11 serial: d8:cb:8a:7b:fc:a0 size: 10Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=no...

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Hi, I looked, and hope I just didn't miss this. If I did, please just head me to the right post.

I just installed Zorin 9 along side off Windows 7. I am trying to wean my wife from Windows as she screws up the computer a lot.

I have used Startupmanager with Debian OS's, and it was orginally an Ubuntu project. I also know there is a grub customization but cannot find either program in the repostiores for Zorin/Ubuntu. How can I change the boot order and the time until grub boots to the OS I choose? Is there a program anyone knows of? I would prefer that to editing grub, but will consider instructions on editing grub too. For now I would like grub to boot to Windows 7 by default, and the ability to change it back to Zorin at some later time. I would also like to be able to vary the time to the OS boot.

Any help would be appreciated.

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Eurobytes - Personal Package Archive.

A is a way to distribute software via a repository. If you want a application that is not available via the software-center, or there is a PPA with a newer version, you can add a PPA to get that application. After the PPA has been added, you will receive notification via the software updater when there is a new version available for the application.


1) Adds the repository - ppa:upubuntu-com/tor - to your system.
2) Refreshes your repository lists.
3) Installs the application(tor-browser).
Note: The sudo is used to asks for root privileges.

sudo add-apt-repository ppa:upubuntu-com/tor sudo apt-get update sudo apt-get install tor-browser


Go to Edit then to Software Sources...

Then a Software Sources window will open go to the tab Other Software click the Add... button left bottom of the window

copy/paste the repository in the APT...

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If you want the latest software or the latest tweaks then a ‘Personal Package Archive’ (PPA) is the simplest and most effective way to get it up and running on your computer. PPAs are repositories hosted on Launchpad which you can use to install or upgrade packages that are not currently available in the official repositories. A PPA can be added from the command line or by using the graphical user interface and in this article we will be showing how to get started on the Ubuntu 12.04 LTS Precise Pangolin.

So let’s begin …

Installing a PPA

Personal Package Archives are not new. They have been around for a while and most PPAs are found by accident or by searching the web for a specific need. Each PPA will typically serve a specific software release (so over time you may find yourself installing multiple PPAs) and when found there are several different approaches to how you can install them.

If you are using a server, enjoy the benefits of...

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To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video

It’s our review of Ubuntu 14.04 Trusty Tahr LTS. It’s Canonical’s latest and greatest, with five years of support. But are there storm clouds on the horizon for this major distribution?

We discuss what’s great about Ubuntu 14.04, what needs some serious work, and why we’re excited about what comes next.

Plus: TrueCrypt audit wraps up, Docker stands out at Red Hat summit…


All this week on, the Linux Action Show!

Thanks to:


HD Video | Mobile Video | WebM Torrent | MP3 Audio | Ogg Audio | YouTube | HD Torrent

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— Show Notes: —

Ubuntu 14.04 Trusty Tahr

Brought to you by: System76

Ubuntu 14.04 LTS will be...

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There are literally thousands of Ubuntu programs available to meet the needs of Ubuntu users. Many of these programs are stored in software archives commonly referred to as repositories. Repositories make it easy to install new software, while also providing a high level of security, since the software is thoroughly tested and built specifically for each version of Ubuntu.

Ubuntu distinguishes between software that is "free" and software that is not free. For details of Ubuntu's Free Software Philosophy please see here.

The four main repositories are:

Main - Canonical-supported free and open-source software.

Universe - Community-maintained free and open-source software.

Restricted - Proprietary drivers for devices.

Multiverse - Software restricted by copyright or legal issues.

The Ubuntu Install CDs contain software from the "Main" and "Restricted" repositories, so if you have no internet connection you can still install...

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Part of the appeal of Ubuntu is its six-month release cycle. Every six months a new version of the free operating system is released into the wild, complete with updates for all of your favorite software. This is great, but can be a trifle disappointing from time to time. For example, if a new version of your favorite software comes out you may have to wait until the next version of Ubuntu comes out to try it.

The solution to this is the PPA. This is a repository, provided by Canonical (the company behind Ubuntu), that allows developers and enthusiasts to offer up-to-date versions of software to all Ubuntu users. Originally PPAs were limited to programmers and testers, but Canonical opened PPAs to everyone in late 2007.

I constantly mention PPAs in my Ubuntu articles because for the newest software, installing a PPA is the simplest way to get everything working. But what is a PPA and why would you want to use one?

What’s A PPA?

Those new to...

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When writing about applications we often say ‘add the following PPA to your Software Sources’ – but just how does one do it?

Add a PPA to Ubuntu via the Ubuntu Software Centre

Open The Ubuntu Software Centre and ‘mouse’ over the top panel to reveal the Application Menu.

In the ‘Edit’ menu select ‘Software Sources’.

A small pop-up will appear asking you to enter your password to ensure changes being made have your approval.

Enter your password then click ‘OK’.

Another window, pictured below, will open. Along the top of the window are a row of tabs. Click on the second tab, named ‘Other Software’, followed by the ‘Add’ button located towards the bottom

Another small window will open. It’s here you paste/type the ‘PPA’ address given in an article (which we usually write in bold).Make sure you enter it carefully. Then click ‘Add Source’.

After doing this the Ubuntu Software Centre will update its ‘Package list’ with apps...

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PPA (Personal Package Archive) are used to include a specific software to your Ubuntu, Kubuntu or any other PPA compatible distro. The "safeness" of a PPA depends mostly on 3 things:

Who made the PPA - An official PPA from WINE or LibreOffice like ppa:libreoffice/ppa and a PPA that I created myself are not the same. You do not know me as a PPA maintainer, so the trust issue and safety is VERY low for me (Since I could have made a corrupted package, incompatible package or anything else bad), but for LibreOffice and the PPA they offer in their website, THAT gives a certain safety net to it. So depending on who made the PPA, how long he or she has been making and maintaining the PPA will influence a little bit on how safe the PPA is for you. PPA's as mentioned above in the comments are not certified by Canonical.

How many users have used the PPA - For example, I have a PPA from in my personal PPA. Would you trust ME with 10 users that confirm using...

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sudo add-apt-repository ppa:simon-cadman/niftyrepo sudo apt-get update sudo apt-get install cupscloudprint sudo /usr/share/cloudprint-cups/

After it asks for Google Credentials ( it will only do this is the first time you have used CUPS CloudPrint, or your credentials are invalid ) it will then ask if you wish to add all printers from your Google Account.

To make it work with Google's 2 Step Verification system, you must create a "Device Specific" password, to do this go>Log in with your account>Click on your user name>Security>Edit authorizing applications>Enter your account pasword>set the password.

If you say ‘Y’ here, it will add all printers that are currently not added to your CUPS install.

If you would prefer to add the printers manually, say ‘N’ here, and add a printer manually:

Add a new printer ( via or usual interface ) as a ‘Google Cloud Print’ network printer. Select the ‘Make’ as...

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This command should tell you what is currently providing the Java virtual machine (java) and the Java compiler (javac):

file /etc/alternatives/java /etc/alternatives/javac

This assumes the "alternatives" system is working properly, which might not be the case, depending on how Java has been "messed up" in the past. To check this, run:

file `which java javac`

If the alternatives system is working correctly and being used by Java, then you should see:

/usr/bin/java: symbolic link to `/etc/alternatives/java' /usr/bin/javac: symbolic link to `/etc/alternatives/javac'

Otherwise please edit your question to provide details. Then it should be possible to give a more specific answer.

You can remove openjdk-6 with the Software Center. There are multiple packages associated with it, so you may need to remove more than one packages. (All the `openjdk-6 packages are listed here.)

Or you can use the command-line:

sudo apt-get remove openjdk-6-\*...
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If you don't have ubuntu-restricted-extras installed you may need to install that, and any other libraries you require from the repositories.

If you want to install gstreamer 1.0, you need to use the backports for Precise from the gstreamer developers ppa, which is the best source at the minute and the most 'official' developer ppa available.

sudo add-apt-repository ppa:gstreamer-developers/ppa sudo apt-get update sudo apt-get install gstreamer1.0*

This will install all the base packages and plugins that you require, and is fine to install, even though you also have the earlier version installed as well, although applications will not use gstreamer1.0 unless they have been built with support for it.

For more information regarding ppas, please see these...

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Using a PPA

You can use WebUpd8 PPA (this will download the required files from Oracle and install JDK 8):

sudo apt-add-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java8-installer

Are PPA's safe to add to my system and what are some “red flags” to watch out for?

Also ensure your JAVA_HOME variable has been set to:


Manual install

The tar.gz provided by Oracle don't have an actual installation process. You just extract those files to a location you want and add them to your path. So the process is the following:

Download a .tar.gz from Oracle (here I will be using jdk-8u20-linux-x64.tar.gz); Extract it to somewhere;

Move the extracted folder to /usr/lib/jvm. This is not required but it is the place where Java runtime software is installed

sudo mv /path/to/jdk1.8.0_20 /usr/lib/jvm/oracle_jdk8

Create a file /etc/profile.d/ with the following content (adapt...

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