/dev/urandom

[Douglas R. Taylor]

What permissions are required by the /dev/urandom device?

[Michael Schulte zur Sur]

Hi,

ours has 666

greetings,

Michael

[Steven Schweda]

I don't know about "required", but 666 seems
to be popular.

[Michael Schulte zur Sur]

I wonder if writing to it makes sense
so 444 should be ok too?

Michael

[Steven Schweda]

> I wonder if writing to it makes sense

urtx# man urandom
[...]

Writing data to the /dev/random or /dev/urandom device will mix the new
data into the entrophy pool to make the random data better, but it will not
increase the entrophy estimate. This prevents a user from writing lots of
low-entrophy data to the pool and having the /dev/random device generate
poor random data.

[Douglas R. Taylor]

Thanks to all that replied. 666 seems to be the default.

[Douglas R. Taylor]

Permissions 666 seems to be the default answer for this file.