05-01-2012
Recompiling and uninstalling existing applications
Hi everyone,
I'm new-ish to Unix outside of being a basic user in the past. So some background on my experience level when asking this question.
My current laptop, running OS X 10.5, had Apache and PHP installed when I bought it. However I need to recompile these now to add features which weren't included 'out of the box'.
Questions:
- Do I need to do anything to 'uninstall' these existing versions of the software before the recompile?
- Do I need to delete the binaries/libraries/other directories/etc of a program I am going to be recompiling (if this isn't answered by the above question) or will this automatically be taken care of?
- How can I make sure I don't leave anything 'hanging around' when I do uninstall a program? Or recompile?
- What resources can I read to learn more about all of this and related?
Thanks!
Charles
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LEARN ABOUT DEBIAN
kaya-rekey
kaya-rekey(1) Kaya program reference kaya-rekey(1)
NAME
kaya-rekey - Binary key regeneration for kaya web applications
SYNOPSIS
kaya-rekey FILE1 [FILE2 [...]]
DESCRIPTION
kaya-rekey gives all Kaya binaries specified on the command line a new application secret key
The application secret key makes webapps and CGI programs secure, by encrypting the state transfers. If you receive a webapp or CGI binary
from someone else, or you believe someone untrusted has had read access to your binary, you can use the kaya-rekey application to generate
a new application secret key without needing a recompile.
Binary distributors of Kaya applications are strongly recommended to use 'kaya-rekey' as part of the installation process.
Prior to Kaya 0.3.0 this utility was called rekey
OBTAINING
The latest release of Kaya can be obtained from <http://kayalang.org/download>
Development versions can be obtained using darcs(1) from <http://kayalang.org/darcs/>
SECURITY
kaya-rekey will use /dev/random to generate the new key if possible. If /dev/random is unavailable (Windows without MinGW, for example),
the new key will be generated pseudo-randomly. This may allow an attacker to easily guess the new key. In environments where security is a
concern, therefore, we strongly recommend recompiling with kayac(1) rather than using kaya-rekey if /dev/random is unavailable.
kaya-rekey will give a warning when rekeying if /dev/random is unavailable.
BUGS
Please report bugs in kaya-rekey to <kaya@kayalang.org>
kaya-rekey cannot rekey Kaya binaries generated with a compiler older than the switch to AES256 encryption (i.e. older than 0.2.0 final
version)
In rare cases, kaya-rekey may not be able to successfully rekey a file and will print an error instead. You must recompile in this case to
get a new application key.
LICENSE
kaya-rekey is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License (version 2 or any
later version) as published by the Free Software Foundation.
SEE ALSO
kayac(1)
Kaya December 2006 kaya-rekey(1)