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Redo the "how to upgrade" FAQ.

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Jon Siwek 2012-10-03 16:14:52 -05:00
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@ -12,13 +12,42 @@ Frequently Asked Questions
Installation and Configuration Installation and Configuration
============================== ==============================
What files will get overwritten when upgrading/installing a new Bro version? How do I upgrade to a new version of Bro?
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Expect everything except things in ``$prefix/share/bro`` and There's two suggested approaches, either install Bro using the same
``$prefix/etc`` to be overwritten, but backing up the entire ``$prefix`` installation prefix directory as before, or pick a new prefix and copy
before upgrading is good practice (``$prefix`` indicating the root of local customizations over.
where Bro was installed).
Re-Use Previous Install Prefix
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
If you choose to configure and install Bro with the same prefix
directory as before, local customization and configuration to files in
``$prefix/share/bro/site`` and ``$prefix/etc`` won't be overwritten
(``$prefix`` indicating the root of where Bro was installed), but making
a backup of local changes before proceeding is recommended. Also, logs
generated at run-time won't be touched by the upgrade.
After upgrading, remember to check ``$prefix/share/bro/site`` and
``$prefix/etc`` for ``.example`` files, which indicate the
distribution's version of the file differs from the local one, which may
include local changes. Review the differences, and make adjustments
as necessary (for differences that aren't the result of a local change,
use the new version's).
Pick a New Install prefix
^^^^^^^^^^^^^^^^^^^^^^^^^
If you want the install the newer version in a different prefix
directory than before, you can just copy local customization and
configuration files from ``$prefix/share/bro/site`` and ``$prefix/etc``
to the new location (``$prefix`` indicating the root of where Bro was
originally installed). Make sure to review the files for difference
before copying and make adjustments as necessary (for differences that
aren't the result of a local change, use the new version's). Of
particular note, the copied version of ``$prefix/etc/broctl.cfg`` is
likely to need changes to the ``SpoolDir`` and ``LogDir`` settings.
How can I tune my operating system for best capture performance? How can I tune my operating system for best capture performance?
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