Re: Why a 'nobody' process is using port 1024 ?

Brian Gerst (bgerst@quark.vpplus.com)
Wed, 11 Nov 1998 09:48:49 -0500

Ricardo Calixto Quesada wrote:
>
> I'm running kernel 2.0.35, glibc2.0.7, in one server with apache as user nobody.
> But I found several times that apache had used port 1024 to connect to others servers.
> Is this a bug ? of the kernel ? of the tcp/ip stack ?
>
> I assume that apache is using port 1024 because it is running as a proxy server.

Normally when you open outgoing TCP sockets, without giving a specific
port number, the kernel will start allocating at 1024 and sequentially
increase every time you call bind() without a port number. Apache
probably was the first program to bind a TCP port, so it grabbed 1024.

PS. If you are thinking that port 1024 is priviledged (ie root only),
it's not. Ports 0-1023 are priviledged.

-- 


						Brian Gerst


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