switching between two network configurations
Hi List With my laptop, I'd like to access two different networks (depending on where I am): My home network and university network. At home, my IP is 192.168.0.99 and hostname shold be horchloeffel, at university the IP and hostname are set to other fixed values. What I'd like to do is choosing at boot-time which network configuration to load. Is it possible to write a shell script that is invoked by a lilo parameter? It would have to set the hostname, the nameservers and the IP adress according to predefined values (should be simple to write two configurations, say /etc/hostname.uni and /etc/hostname.home, one of which is copied to /etc/hostname and so on). Is this possible, or are there other (better) solutions for doing this task? Thanks joerg -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: switching between two network configurations
On Tue, 10 Dec 2002 11:54:45 +0100 Jörg Johannes [EMAIL PROTECTED] wrote: Hi List With my laptop, I'd like to access two different networks (depending on where I am): My home network and university network. At home, my IP is 192.168.0.99 and hostname shold be horchloeffel, at university the IP and hostname are set to other fixed values. What I'd like to do is choosing at boot-time which network configuration to load. Have a look at man interfaces, particularly for the mapping facility. Also, in /usr/share/doc/ifupdown/examples, you should find an example for something very similar. -- Christoph Simon [EMAIL PROTECTED] --- ^X^C q quit :q ^C end x exit ZZ ^D ? help . -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: switching between two network configurations
Hi Jörg! Am Die, 2002-12-10 um 11.54 schrieb Jörg Johannes: With my laptop, I'd like to access two different networks (depending on where I am): My home network and university network. At home, my IP is 192.168.0.99 and hostname shold be horchloeffel, at university the IP and hostname are set to other fixed values. What I'd like to do is choosing at boot-time which network configuration to load. Is it possible to write a shell script that is invoked by a lilo parameter? I've never tried that with Debian but with SuSE every kernel-parameter is send as a parameter (dunno which $x) to all rc-scripts. So in theory you can edit /etc/init.d/networks to parse $*. And if $* contains uni or something like that, it sets up the hostname and IP with respect to the parameter. Also when using PCMCIA network cards switching between two or more network setups is *very* easy. Have a look at /etc/pcmcia/network.opts and to a man cardctl (look for scheme). If network.opts is set up correctly you can switch your network environment as easy as cardctl scheme $NAME_OF_ENVIRONMENT. It would have to set the hostname, the nameservers and the IP adress according to predefined values (should be simple to write two configurations, say /etc/hostname.uni and /etc/hostname.home, one of which is copied to /etc/hostname and so on). Is this possible, or are there other (better) solutions for doing this task? Yes: cardctl, see above (but only if you use PCMCIA). -- Matthias Hentges [www.hentges.net] - PGP + HTML are welcome ICQ: 97 26 97 4 - No files, no URLs My OS: Debian Woody: Geek by Nature, Linux by Choice -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: switching between two network configurations
Jörg Johannes [EMAIL PROTECTED] writes: With my laptop, I'd like to access two different networks (depending on where I am): My home network and university network. At home, my IP is 192.168.0.99 and hostname shold be horchloeffel, at university the IP and hostname are set to other fixed values. What I'd like to do is choosing at boot-time which network configuration to load. Is it possible to write a shell script that is invoked by a lilo parameter? It would have to set the hostname, the nameservers and the IP adress according to predefined values (should be simple to write two configurations, say /etc/hostname.uni and /etc/hostname.home, one of which is copied to /etc/hostname and so on). Is this possible, or are there other (better) solutions for doing this task? It pays to know how to use Google Groups! http://groups.google.com/groups?safe=imagesie=UTF-8oe=UTF-8as_ugroup=*debian*as_usubject=laptop%20environment%20detectionlr=lang_ennum=100hl=en This should net you a thread started by Martin Krafft on this very subject about a month or two ago. He surveyed quite a few utilities with the capabilities you desire, and more. Gary -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
