Attachment 17683 Details for Bug 32041 – file.diff

[patch] file.diff

file.diff (text/plain), 1.42 KB, created by mark on 2001-11-16 18:30:01 UTC

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Creator: mark

Created: 2001-11-16 18:30:01 UTC

Size: 1.42 KB

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obsolete

>--- tuning.7	Sat Nov  3 03:32:43 2001
>+++ -	Thu Nov 15 19:10:11 2001
>@@ -332,6 +332,32 @@
> connections.
> .Pp
> The
>+.Em net.inet.ip.portrange.first
>+and
>+.Em net.inet.ip.portrange.last
>+tunables default to 1024 and 5000, respectively. These, like many other
>+sysctl tunables, are designed to limit the use of kernel resources
>+(i.e. port number space) unless there is an explicit requirement for
>+more than this reasonable default.  These are the port numbers
>+allocated to sockets which were created with a 
>+.Xr socket 2
>+call where
>+the port number parameter was zero.  This default range of ports (3977
>+in total) is likely to be insufficient for a machine running a number
>+of client programs of whatever description. The 'first' tunable can't
>+be set below 1024, but may be set higher.
>+The 'last' tunable will usually be the one that requires tweaking on
>+a machine with numerous clients (that don't make use of the IP_PORTRANGE
>+.Xr setsockopt 2
>+option). Assuming you have enough file descriptors and your client
>+code uses
>+.Xr perror 3 ,
>+you will see a message like "Can't assign requested address"
>+(EADDRNOTAVAIL) or "Resource temporarily unavailable" (EAGAIN) if this is set
>+too low for your application. See /usr/src/sys/netinet/in.h for more
>+discussion.
>+.Pp
>+The
> .Em kern.ipc.somaxconn
> sysctl limits the size of the listen queue for accepting new tcp connections.
> The default value of 128 is typically too low for robust handling of new

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