ther uses of setgid.
Ideally, crontab wouldn't be suid/gid _anything_ and users own their
own crontab file, but perhaps I've said too much. :)
--
Michael Bacarella <[EMAIL PROTECTED]>
Technical Staff / New York Connect.Net, Ltd
Daytime Phone: (212) 581-2831
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On Sun, 30 Jul 2000, Brian Fundakowski Feldman wrote:
> Yes, things are stored twice in memory: once in the buffer cache and
> once in the MFS process. Yes, they are also copied multiple times.
> MFS simply can't perform as well as you might expect. The malloc disk
> device can because it simp
> I have a notebook PC with Windows, Linux, and FreeBSD on it.
> I installed the FreeBSD booter into the Master Boot Record (MBR).
> Using that, I can boot Windows or FreeBSD. But Linux doesn't
> show up as a boot choice, because I installed it into a "dos
> extended" partition (slice), to keep
for.)
This isn't such a daunting task with grep. Source code cross referencers
can also help, but I don't use them nearly as often as I thought I would.
--
Michael Bacarella <[EMAIL PROTECTED]> ;finger address for public key
GPG Key Fingerprint: B4E4 82F5 BCAC AB83 E6F7 B5AA 933
hat someone out there swears by threads and kicks butt with them
and has no problems whatsoever, but they put me through too much trouble
to ever be worth it.
I've reached the point where I re-evaluate my design if I ever find
myself saying "..and then I can spawn a thread to.."
--
lieve.
>
> Will a replacement be added to the base distro? When?
If you play with BIND v9, 'nslookup' itself tells you
that it's deprecated and that 'host' should be used instead.
I'm not a fan either.
--
Michael Bacarella <[EMAIL PROTECTED]> ;finger a
Why is crontab suid root?
I say to myself "To update /var/cron/tabs/ and to signal cron".
Could crontab run suid 'cron'?
If those are the only two things it needs to do, run cron as
gid 'cron' and make /var/cron/tabs/ group writable by 'cron'.
7;m sorry I missed the discussion on rfork()... but I say this only
because I want to understand.
What were you thinking? rfork()? Why is it a system call?
Almost all of the flags it accepts seem like functionality that can easily
be implemented in userspace around fork() (and maybe vfork()).
> > Almost all of the flags it accepts seem like functionality that can easily
> > be implemented in userspace around fork() (and maybe vfork()).
>
> nope. This whole issue is about (let me check :-) ) 4.5 years old. I did
> the first rfork for freebsd ca. 9/1994, and I can tell you that you can
> I find myself in a contract where I sit for eight hours a day and wait
> for something to break. It pays obscenely well, so I'm putting up
> with the tedium.
Wow, how does one come across such a contract?
-MB
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g Windows NT across your enterprise.
Michael Bacarella
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> I'm kind of puzzled.
> Program, when killed with SIGINT, prints all counters and exits.
> Depending on the phase of the moon (it seems) sometimes my
> program gives (after ^C):
> This result is obtained for approximately the same runtime of the
> program. The same picture from 'ps'. I'm star
> Program, when killed with SIGINT, prints all counters and exits.
>
> Now, as I understand, userspace threads in FreeBSD are preemptive.
> So, though my 11 threads are all computational and do not do
> any syscalls, sleeps, sched_yield, whatever -- newertheless,
> the program should not be stuc
On Fri, 21 Jan 2000, Doug White wrote:
> On Thu, 20 Jan 2000, Matthew Reimer wrote:
> > Background: in an attempt to manage our webserver to keep too many CGIs
> > from taking down the machine, I've been experimenting with RLIMIT_NPROC.
> > This appears to work fine when forking new processes,
> I once thought something might be wrong, and then found
> (ALT)SYSCALL_LOCK spinning to wait for the lock to be released. Now I
> am wondering if we can contribute spinning time to anything else, say
> running another process, before the lock gets released. Is is possible
> to do so?
I'm the l
> systems have the highest availability rate possible. Over the last few
> years, I have replaced almost all of our Linux-based servers with FreeBSD,
> due to the quality-control measures that the FreeBSD development team have
> implemented.
Not to start a flame-fest or anything (but who doesn'
> What sort of quality-control measures does Slackware have? Where
> do I access their cvs tree? Where do I access their problem reports?
> Where do I subscribe to get every commit message? How long are
> their code freezes? How many committers do they have? What
> mechanism creates their re
> It's release structure means FreeBSD is a complete operating system (as
> opposed to a kernel and one of several distributions) and machines are
> maintainable and upgradable in production over long periods of time via
> the STABLE branch.
I can agree with you here, as our organization has
t and what
their credentials were.
This is in contrast to process accounting, which only records information
on processes which have terminated.
/* ------
Michael Bacarella( [EMAIL PROTECTED] ) | (212) 293-2620
Administration / Development / Support | http://nyct.net/
[ N e w
> > I'll disassemble execve, but I'd rather just pick
> > it up from the group.
>
> Yeah, the shellcode is
>
>
>0xb238fb23b238gub2348b223bdfz23a89230934897a324987287bd8970d8997893981deadbeef21398778787aaa9797bb8979878d87f87
Hah. Do you use 0xDEADBEEF in practice too, or merely as a novelty? :
I love the idea myself, but I have no power over FreeBSD :(
-MB
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On Fri, 18 Feb 2000, Bruce Gingery wrote:
> I can't praise highly enough, two software packages:
>
> http://reality.sgi.com/cbrady_denver/memtest86/
>
> and
>
> http://www.qcc.sk.ca/~charlesc/software/memtester/
Sweet! I never knew that I've wanted one for all of these years unti
n't take up any blocks at all unless users edit their files, which, if
you're an ISP, you know that 95% of users don't do anyway.
There's probably a stockpile of drawbacks to this as well. Fire away.
/* --
Michael Bacarella( [EMAIL PROTECTED] ) | (212) 293-2620
Adm
> Sounds very intriquing. The biggest problem I see, right away is fitting
> it's use into a UNIX environment, were, file copies are made with the
> write system call, making it impossible to implement for the general case.
> You could certainly rewrite the "cp" command and that would get a ma
> > It wouldn't be. This is how NetApp do their .snapshot direcotries. I think
> > they have some white papers on it on their website. It's very handy.
>
> Kirk McKusick is implementing a Copy-on write functionality
> for UFS. It is used in conjunction with Soft updates to produce
> snapshots
> >What are their alternatives? Think about how the world is waking up to
> >Open Source. Think about how companies are realizing that a small group
> >of paid engineers simply can't keep up with a world-wide organization of
> >contributors. What would you do if you didn't feel you could keep
> >> >What are their alternatives? Think about how the world is waking up to
> >> >Open Source. Think about how companies are realizing that a small group
> >> >of paid engineers simply can't keep up with a world-wide organization of
> >> >contributors. What would you do if you didn't feel you
On Sat, 11 Mar 2000, Jordan K. Hubbard wrote:
> > One day we will discover that we can't use FreeBSD as freely and / or
> > with the same quality.
> I wish you doom-sayers would actually come up with some conclusive
> rationale for your fears here. Nobody has yet to come up with a
> single rea
> > I'm not a doom-sayer, but try to understand this from our point of view.
[..snip..]
> does this clear up the difficulty for you?
> did they need to clear this with you first?
I had no difficulties in the first place. I entirely support this. I was
just speculating as to why people could be
at you have to be
privileged or at least loved by a privileged person on the system.
Lately, a lot (more) of this data is accessible through sysctl, although I
don't know exactly what. Just more.
Michael Bacarella
New York Connect Net
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with &quo
> > FreeBSD spawned many more processes than Linux before it started being
> > unable to fork and was thus running many more live copies of the program?
> > You haven't really given/collected enough information to decide.
>
> Linux 2.2.x still supports only 1024 processes I believe. Rumour goes t
> :extend (using truncate) and then mmap() the destination file, then
> :read() directly into the mmap()'d portion.
> :
> :I'd like to see what numbers you get. :)
> read + write is a better way to do it. It is still possible to
> double buffer. In this case simply create a small anony
> Linux runs into problems at less than 4000 threads because of a limit on
> the total number of processes, even if the thread stack size is decreased.
I believe this restriction was eliminated in the 2.2.x series.
-MB
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On Mon, 15 May 2000, Daniel C. Sobral wrote:
> Martin Cracauer wrote:
> >
> > "OpenSource" (without blank) is the term. "Open Source" is like
> > "Free BSD", suit-wearers language showing the unfamilarness with the
> > subject.
>
> Really? I have always used (and have no plans to change) "Ope
> > On the other hand, the FreeBSD kernel is superior than that of Linux.
>
> Yes, and FreeBSD is also superior to every Linux distribution I have
> seen. Although SuSE is pretty good.
And my penis is _SO_ much larger than yours. Large penises are _ALWAYS_
better, of course.
-MB
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es but I've only come
across market-speak.
What does it do?
Michael Bacarella
New York Connect Net
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ak.
> >
> > What does it do?
> >
>
> If AMR == Asus Media Slot, then it's a slot that is simultaneously PCI and
> ISA, so you can have a PCi video card and ISA soundcard on one card.
They're about a third of the size of a PCI slot, so I don't see how tha
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