Re: what is /entrophy ?
On Sun, 6 Feb 2005, Jay Moore wrote: On Wednesday 02 February 2005 05:52 am, Gert Cuykens wrote: what is /entrophy ? can i delete it ? I believe it is a mis-spelled version of /entropy Your computer attempts to collect randomness by sampling the timings of various physical events. That's what the /dev/random device provides: this kernel-harvested randomness. Various cryptographic systems require a supply of good random numbers in order to operate. When the machine first boots, the kernel's entropy pool is empty. It would consequently take potentially quite a few minutes to harvest sufficient randomness from interrupts in order to satisfy the needs of such things as sshd. The solution is the /entropy file: when the machine shuts down, it saves spare random bits that have not yet been used into this file. On reboot, the kernel's random pool is reinitialised using these spare bits. Assuming nobody's sneaked a peek at them in the itme the machine's been turned off, this is a reasonable way to quickly satisfy the startup requirements for randomness. -- jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/ Tel +44(0)117 9287864 or +44 (0)117 9287088 http://ioctl.org/jan/ You see what happens when you have fun with a stranger in the Alps? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: what is /entrophy ?
On Wednesday 02 February 2005 05:52 am, Gert Cuykens wrote: what is /entrophy ? can i delete it ? I believe it is a mis-spelled version of /entropy jay ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
what is /entrophy ?
what is /entrophy ? can i delete it ? also can i delete /python.core ? what about /COPYRIGHT :P you just had to put it in the / dont you :) whats wrong with /tmp :P ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: what is /entrophy ?
On Wed, 2 Feb 2005 12:52:52 +0100, Gert Cuykens [EMAIL PROTECTED] wrote: what is /entrophy ? can i delete it ? also can i delete /python.core ? what about /COPYRIGHT :P you just had to put it in the / dont you :) whats wrong with /tmp :P PS what is the use of /usr/compat ? Can i delete it ? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: what is /entrophy ?
On Wed, Feb 02, 2005 at 12:52:52PM +0100, Gert Cuykens wrote: what is /entrophy ? can i delete it ? It is used to store entropy to reseed the random number generator at boot time. If it really is in your way there, then you can put it elsewhere by setting entropy_file in /etc/rc.conf. also can i delete /python.core ? Yes. It is the remnants of a crashed python process. If you're not interested in debugging it, you may as well get rid. what about /COPYRIGHT :P Why bother? It's only using one inode, and occupies very little disk space. But if it offends, then sure, remove it. It'll come back when you upgrade anyway. you just had to put it in the / dont you :) whats wrong with /tmp :P They're not temporary files. /tmp is for storing session data, etc, that will not be required after reboot. The whole point of the entropy file is to store entropy across a reboot. COPYRIGHT should be somewhere easy to find - where's easier to find than /? And /usr/compat is where the compatibility layers live. If you use any ports that depend on Linux, then they will want this stuff intact. If you don't use any ports that expect to be run on Linux, it'll probably be empty. Dan -- Daniel Bye PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc PGP Key fingerprint: 3B9D 8BBB EB03 BA83 5DB4 3B88 86FC F03A 90A1 BE8F _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ pgpmPzS35vvQR.pgp Description: PGP signature
Re: what is /entrophy ?
On Wed, 2 Feb 2005 12:46:52 + Daniel Bye [EMAIL PROTECTED] wrote: what about /COPYRIGHT :P Why bother? It's only using one inode, and occupies very little disk space. But if it offends, then sure, remove it. It'll come back when you upgrade anyway. trollingeven if it's symlinked to /dev/null ? :)/trolling -- Adrian Pircalabu Public KeyID = 0x04329F5E -- This message was scanned for spam and viruses by BitDefender. For more information please visit http://www.bitdefender.com/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: what is /entrophy ?
On Wed, Feb 02, 2005 at 05:26:40PM +0200, Adi Pircalabu wrote: On Wed, 2 Feb 2005 12:46:52 + Daniel Bye [EMAIL PROTECTED] wrote: what about /COPYRIGHT :P Why bother? It's only using one inode, and occupies very little disk space. But if it offends, then sure, remove it. It'll come back when you upgrade anyway. trollingeven if it's symlinked to /dev/null ? :)/trolling I don't know - I honestly can't say that I have ever spent much time in comtemplation of things to do with /COPYRIGHT. Be sure to tell us when you find out, though. -- Daniel Bye PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc PGP Key fingerprint: 3B9D 8BBB EB03 BA83 5DB4 3B88 86FC F03A 90A1 BE8F _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ pgpbWxZiYv2bs.pgp Description: PGP signature
