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I have been running a VPS for several weeks now and yum has informed me that 67 package updates are available. I'm very new to Linux and server administration in general. I have taken time to configure Apache, PHP and a few other necessary programs for security and to customize. If an update is available and I choose to install it, will this overwrite any changes I have made to the config? For example if I update PHP will php.ini be overwritten and returned to its default state?


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If an RPM needs to modify a config file, generally it is updated by a script rather than a drop-in replacement. For major packages like Apache, PHP, and MySQL they're very careful about that. It is safe to apply the updates.

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