On Mon, 2006-12-11 at 12:12 -0500, Matthew Saltzman wrote: > On Mon, 11 Dec 2006, Marc Schwartz wrote: > > > Aaron Konstam wrote: > >> On Mon, 2006-12-11 at 09:42 -0500, Gene Poole wrote: > >>> Beware - It seems that the first time you use NetworkManager it destroys > >>> the contents of you resolv.conf (built at install time). It also seems > >>> that it doesn't make a backup copy first. > >>> > >>> Thanks, > >>> Gene Poole > >>> > >> I have never noticed that this is true. I will have to look into your > >> statement. > > > > If you have a network profile that is based upon a fixed IP address and DNS > > servers (which I do have at home behind a router with DHCP disabled), then NM > > will overwrite the configurations for that profile, including > > /etc/resolv.conf. > > > > I use NM at work, where we have DHCP and of course with wireless networks > > when travelling. > > > > However, at home, I end up disabling NM and then run a shell script which > > activates the Home profile and associated config settings and then ifup's > > eth0. > > > > It seems to me that I have seen references to this previously, relative to > > using NM when one has a fixed IP and DNS settings. My recollection is that NM > > is really configured for DHCP based nets and does not (yet) support network > > profiles. > > > > However, I would love for somebody to tell me that I am wrong on this, as I > > would love to not have to go through the steps that I do when at home. > > Do you access the Internet directly at home or through some sort of > router? If the latter, you can probably configure your home router to > provide DHCP service (including nameserver info) to your laptop. Matthew, As I note above, yes, I do use a router... :-) I have DHCP disabled as part of a multi-layer approach to security. Specific IPs are enabled for use by my family, all others are disabled. I suppose that I could still do this, as you note below, while enabling DHCP and DNS info and thus still use NM. I just had not taken that approach and NM has not been an issue until the last couple of FC releases anyway. I have been using RH/FC since the late RH 8.0 betas. > I do this, and NM works just fine. I actually use a Linux box as a home > server. It runs dhcpd so it can even match IP addresses to MAC addresses > so machines get "static" addresses. > > IIRC, NM should respect a static id set in /etc/sysconfig/network-scripts, > but you still need to stop it and change profiles if you sometimes have a > static id and sometimes want to DHCP. Yeah, I do have the occasion where I need to go back and forth between fixed IP and DHCP, hence I wrote the scripts that I have to address this. As I note, a more unified approach via NM would be helpful. Having had the chance now to set up network connections with Windows, Linux and more recently, Mac OS X, the latter seems to have a relatively easy to use interface relative to selecting a "location" and enabling it along with the attendant profile. My daughter's new Intel Core 2 Duo based MacBook, has this and it has made it very easy for her to go between home, university and other locations with a simple menu based selection, using location profiles that I configured for her. It is a lot easier than, for example, using the the gnome-netstatus-applet after disabling NM. In either case, it is a livable situation until such time as NM can support profiles. Users in this situation just need to be aware of the gotchas. Thanks, Marc
