[Techtalk] ip addreses on redhat

Robert Wade rbwade at simla.colostate.edu
Mon Aug 4 08:50:56 EST 2003


Lena,

The whole premise of GNU and usually open source is that one can use the
work of others. Why not just use 'ifconfig -a' in your program?

Robert

On Mon, 4 Aug 2003, Lena M wrote:

> Luke,
> 
> That's right. I need to know how ifconfig -a gets ip addresses. I would like
> a program that I'm writing to do the same.
> 
> Thank you.
> 
> Lena
> 
> 
> 
> ----- Original Message ----- 
> From: "Luke Woods" <lwoods at netstarnetworks.com>
> To: <techtalk at linuxchix.org>
> Sent: Monday, August 04, 2003 7:16 AM
> Subject: RE: [Techtalk] ip addreses on redhat
> 
> 
> > Hi,
> >
> > I believe she might be talking about where the address is stored after
> > being configured (by ifconfig or the like).
> >
> > Network interfaces are kernel resident, the applications make system
> > calls to change certain parameters of the interface.
> >
> >
> > Quote:
> >
> > Is the IP address being assigned statically or dynamically?
> >
> > If it's static, the IP address lives in
> > /etc/sysconfig/network-scripts/ifcfg-ethX  where X is the interface
> > number.
> >
> > If the address is being assigned dynamically, then where it's stored
> > depends on the dhcp client you're using. The most probable location is
> > /var/lib/dhcp, but as I said, that location might vary depending on the
> > client. In any case, it will be stored somewhere in /var, not /proc
> >
> >
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