Re: [gentoo-user] Automatic host switching [SOLVED]

[Momesso Andrea]

On Sunday 21 September 2008 20:53:13 Neil Bothwick wrote:
> On Sun, 21 Sep 2008 18:34:15 +0100, Robert Bridge wrote:
> > > Like having a /etc/hosts.home and a /etc/hosts.world and a script
> > > that sysmlinks them to /etc/hosts depending on the fact that i can
> > > ping or not 192.168.1.5?
> >
> > Basically, I would probably look at methods of hooking it onto the IP
> > assigned to the device (ifplugd should be able to do this), but that is
> > the basic idea.
>
> You could do it in the postup function of /etc/conf.d/net.

Right I made 2 scripts: 

/root/scripts/hosts.world

#!/bin/bash
MYFILE='/etc/hosts.backup'
OLDHOST=`grep fandango $MYFILE | awk '{ print $1 }'`
NEWHOST=`host fandango.dyndns.foo | gawk '{print $4}'`
sed s/$OLDHOST/$NEWHOST/ $MYFILE > /etc/hosts

/root/scripts/hosts.home

#!/bin/bash
MYFILE='/etc/hosts.backup'
OLDHOST=`grep fandango $MYFILE | awk '{ print $1 }'`
NEWHOST=192.168.1.5
sed s/$OLDHOST/$NEWHOST/ $MYFILE > /etc/hosts

Then I added a postup function in /etc/conf.d/net

postup() {
        if [[ ${IFACE} == "ppp1" ]] ; then
                /root/scripts/hosts.home
        elif [[ ${IFACE} == "ppp2" ]] ; then
                /root/scripts/hosts.world
        fi
return 0
}

It works like a charm :)


-- 
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MOMESSO ANDREA
jabber: topper_harley@××××××.org
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