Re: udp packet storms - ping death

[karl () bagpuss demon co uk (Karl Strickland)]

> Darren Reed wrote this...
> > There is/was a patch for this, I don't recall what number...someone else...
> > and most likely Sun have rolled this into 4.1.3_U1 (don't you wish they
> > would roll a 4.1.4 and just be done with it ?  And move all those damn
> > security fixes that have gone into Solaris2 into SunOS 4 - some of us
> > _hate_ svr4 and the new kernel architecture - not very easy to customize
> > or configure/optimize the kernel at all!).
> eh? with solaris you an load/unload drivers and modules on the fly and
> configure the kernel _while_ it is running. this you ant do with sunos,

SunOS 4.1.x has facilities for loadable kernel modules.  Its just that the
standard distribution doesnt make use of them.  (Except maybe with
OpenWindows3?)

> also the svr4 kernel is far more scalable than the sunos one. the case isnt
> that solaris kernels are harder to configure, its that they are different.
> if you really want to compare the two kernels read the following two books
> "The Magic Garden Explained" by Berny Goodheart, also "BSD Internals" (i
> think not sure of the author) it is published by Addison Wesley, it has a
> picture of a little devil on the front (i havea copy of the former and have
> read the latter but dont have a copy as yet).

Good advice.  BSD internals book is called "The Design And Implementation of
the 4.3BSD UNIX Operating System" by Lefflet, McKusick, Karels & Quarterman.
ISBN 0-201-06196-1.

These books describe BSD 4.3 + System V Rel 4.0, which roughly maps onto
SunOS {3,4}.x and Solaris 2, but not exactly.  Eg the memory management
in SunOS 4.x has all changed from BSD 4.3.  Also loadable modules are
obviously not discussed in either book - they werent introduced until
SVR4.2.

Both superb books.
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Mailed using ELM on FreeBSD               |                    Karl Strickland
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