[geeks] Solaris 10 max connections limit?

Phil Stracchino alaric at metrocast.net
Wed May 27 16:56:06 CDT 2009


Phil Stracchino wrote:
> I'm installing NUT (Network UPS Tools) on my Solaris 10 x86 box, and
> upsd is dying because when it requests FD_SETSIZE (1024) maximum
> connections by default, it's apparently getting back only 256 allowed.
> 
> Not that I'm ever going to need even 256 ... I actually just patched the
> code to request only 128, and even that is overkill in my environment.
> But does anyone know why Solaris 10 would limit a privileged application
> started by root to 256 connections?  Is it a configurable limit?

Further:  it appears tcp_conn_req_max_q defaults to 128.  I can't find
any applicable tunables that default to 256.


-- 
  Phil Stracchino, CDK#2     DoD#299792458     ICBM: 43.5607, -71.355
  alaric at caerllewys.net   alaric at metrocast.net   phil at co.ordinate.org
         Renaissance Man, Unix ronin, Perl hacker, Free Stater
                 It's not the years, it's the mileage.



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