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From Tony Finch <>
Subject Re: Teched / maybe some interesting information
Date Thu, 08 Jul 1999 05:16:19 GMT
tser <> wrote:
>* Maximum Number of IP adress you can use on a Single NT server, is 250.
>Unless you install Sp5
>This Bug was said to be have fixed inside the TCP/IP (network) Core, So
>i think it also affects Apache.
>After upgrading to SP5, the maximum number is 4000.

A JFYI followup: Solaris supports up to 8192 addresses per interface,
but the performance sucks. BSDI supports large numbers of IP aliases
without poor performance (but managing many aliases is a pain).
*BSD with a patch like in
will allow you to have very large numbers of IP aliases if they are
whole CIDR blocks. (Dean Gaudet has a similar patch.)

Winner, International Obfuscated C Code Competition 1998

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