Package: pound
Version: 2.2.7-2
Severity: normal

I noticed that pound was using far more CPU time than the backend
servers behind it, which struck me as strange.

Upon investigation it appears that it regenerates 2 x 11 RSA keys every
300 seconds. On my not too shabby system that takes about 5 seconds, or
20 minutes every day.

Now this may be a good thing security-wise, but I'm not even using pound
for SSL connections!  Only plain HTTP connections go through it. It also
removes entropy from the pool for things that need it, which IMHO is
wasteful.

I modified my local copy to only regenerate every 24 hours, and that's
much better. However, a couple of suggestion came to mind:

- only regenerate keys that have actually been used
- make the regeneration period configurable
- why 11 times? Why not 10, or 12, or 16? Make this configurable?


thanks,
Paul Slootman

-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (650, 'testing'), (625, 'stable'), (600, 'unstable')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17-rc5
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)



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