What exactly is BSD? Post: 52188

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Operating Systems BSD What exactly is BSD? Post 52188 by dkaplowitz on Saturday 12th of June 2004 11:16:41 PM

06-13-2004

Registered User

http://wiki.linuxquestions.org/wiki/BSD is a reasonable description of how BSD emerged. There are other better examples out there depending on how much reading you want to do.

I think it's important to point out that many of the current, freely available BSDs already mentioned are distributed under the BSD license which is free, as in beer. It is the most free license in oss currently. It places no restrictions on what you can do with software distributed under the BSD license. The GPL, in comparison, has a lot more restrictions. So this is an important thing to consider when using the BSDs.

Also, I don't agree with the previous poster about a couple points. OpenBSD is very easy to install and with the CDs (or with broadband) it takes me about 10-15 minutes to install. The hardest part of the install is the disklabel program, which is not intuitive the first couple times you run it, but it's extremely well documented (great documentation is another thing OpenBSD is famous for) in the FAQ, and once you've done it 2-3 times, it's a breeze.

Also, FreeBSD installs on many systems, but is certainly more finnicky than OpenBSD or NetBSD about what it installs on.

Another thing worth mentioning is that the BSD OSs have the majority of the market share in WWW servers in the world.

dkaplowitz

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for all you unix/linux interested heres an online book for free that covers the basics of BSD SysV Unix commands and applications . giving the average linux user a perspective on the differences in context of the two operating systems and for BSD users covers material as a refernce guide. ...

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cr_seeotheruids

CR_SEEOTHERUIDS(9)					   BSD Kernel Developer's Manual					CR_SEEOTHERUIDS(9)

NAME

     cr_seeotheruids -- determine visibility of objects given their user credentials

SYNOPSIS

     int
     cr_seeotheruids(struct ucred *u1, struct ucred *u2);

DESCRIPTION

     This function determines the visibility of objects in the kernel based on the real user IDs in the credentials u1 and u2 associated with
     them.

     The visibility of objects is influenced by the sysctl(8) variable security.bsd.see_other_uids.  If this variable is non-zero then all objects
     in the kernel are visible to each other irrespective of their user IDs.  If this variable is zero then the object with credentials u2 is vis-
     ible to the object with credentials u1 if either u1 is the super-user credential, or if u1 and u2 have the same real user ID.

SYSCTL VARIABLES

     security.bsd.see_other_uids
	     Must be non-zero if objects with unprivileged credentials are to be able to see each other.

RETURN VALUES

     This function returns zero if the object with credential u1 can ``see'' the object with credential u2, or ESRCH otherwise.

SEE ALSO

     cr_seeothergids(9), p_candebug(9)

BSD
								 November 11, 2003							       BSD

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cr_seeotheruids