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

Should I trust these packages and ppas on Oneiric Amd64? PPA:

sudo apt-add-repository ppa:ubuntu-x-swat/x-updates

Packages from ppa above:

Jupiter gnome-shell-extensions calendar-indicator oracle-java7-installer indicator-weather lo-menubar xscreensaver xscreensaver-gl-extra xscreensaver-data-extra gimp gimp-plugin-registry gimp-resynthesizer
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marked as duplicate by Jorge Castro, jokerdino, James May 29 '12 at 15:22

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

up vote 9 down vote accepted

These PPA's you have mentioned are maintained by

  • Webupd8
  • Ubuntu-x-swat
  • atareao

Webupd8 is quite a trusted site. They provide proper well made stable packages. Many people (Even me!) use their PPA's. You should not have a problem with their packages. See their home page

Ubuntu-x-swat is also a great team. Here also many people use it (Me also, again!). You can safely use it but do not forget to read the instructions here

atareao : I have never used their PPA but searching around on the net gives a hint that they are a bit trusted and also recommended by some sites.

Generally most PPA's you find should be stable with no "evil" in them. Just to be sure keep a point in mind to add a PPA only if some sites recommend them. Also make sure to add only stable version of a PPA. Some PPA's provide development versions which might thrash your PC if they are buggy. So in the end the choice is yours.

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Its upto you whether you are going to trust any of the untrusted PPA's. I mean to say the risk level depends on youselves.

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