Re: Usage of /dev/random

On Aug 18, 2005, at 8:04 AM, Christoph Bartoschek wrote:

> Today i wondered why some commits took so long. Then I started svn
> commit
> with strace and saw for half a minute:
>
> open("/dev/random", O_RDONLY) = 3
> read(3,
>
> Obviously the commit hangs because there is not enough entropy in /
> dev/random.
> Is /dev/urandom really so insecure that one has to use /dev/random?

APR links to /dev/random by default, so that it can generate random
numbers (for UUIDs, for example). But, on systems that tend to hang
on /dev/random, it's recommended that you rebuild apr by running
its ./configure --with-devrandom=/dev/urandom.

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Received on Thu Aug 18 16:06:41 2005