Talk:Yum-plugin-priorities

Mmccarn 15:31, 22 November 2008 (UTC)

perl-DBIx-DBSchema

Yes - I finally figured out that perl-DBIx-DBSchema was installed when I tried to install 'Resource Tracker' - they have their own repository....

Clearly, we could choose to ignore this issue -- but just as clearly if we configure yum-plugin-priorities it will become possible to install 3rd party apps that later break yum.

In this case, perl-DBIx-DBSchema, which is not included with SME requires perl-DBIx-SearchBuilder which is included with SME - so the low priority repo locates and wants to update perl-DBIx-DBSchema, but the priorities plugin then prevents the install of the correct perl-DBIx-SearchBuilder.

We need

• a plugin, method, or option that blocks the update of packages from 3rd party repos if the new version requires a package that is included with SME / Centos that has not yet been updated.
• a way to notify users of the blocked updates so they can decide if the blocked update involves a security issue
• or documentation on how to work around this issue, along the lines of "observe the problem, identify the blocking package, update the blocking package independantly using the "--noplugins" option, then finish your update

Side note on security

A major reason that I use SME server is that I feel the developers are highly security conscious, and that if I keep a SME server relatively virgin it will remain secure. I don't have the knowledge, time or experience to evaluate every package available in Linux for its security exposure level.

Is there any easy way to scan a SME server, identify any installed packages that are not considered secure by the SME developers, then modify /etc/motd and add a note to server-manager stating that "unevaluated packages are installed"?

Perhaps you can use the following audittool in your detection logic as it should report all contribs from 3d party repositories:

/sbin/e-smith/audittools/newrps

— Cactus (talk | contribs)  15:43, 22 November 2008 (UTC)

Installation

My "script" for modifying /etc/yum.conf is just my notes on how to make these changes easily and temporarily; I hadn't gotten around to making a custom template fragment yet...

Snoble 09:37, 22 November 2008 (UTC)

You should be able to use my script on 7.3 to populate the db

only difference is there will be a different fragment to modify /etc/yum.conf/something

---

perl-DBIx-DBSchema is not installed by default, I don't have either of the below rpms installed

I tried to install with priority=10 and couldn't, same error as you

with priority=99 it would install

yum install --enablerepo=dag perl-DBIx-DBSchema

=============================================================================
 Package                 Arch       Version          Repository        Size 
=============================================================================
Installing:
 perl-DBIx-DBSchema      noarch     0.36-1.el4.rf    dag                70 k
Installing for dependencies:
 perl-DBD-Pg             i386       2.11.1-1.el4.rf  dag               286 k