Re: Bug Report - setup

[Michael Tremer <michael.tremer@ipfire.org>]

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On Mon, 2014-10-27 at 20:27 -0500, R. W. Rodolico wrote:
> I'm ok with leaving as is, but if you'd like, I could definitely write a
> Perl script that would go through and sync all the different locations.
> Something that would run every 5 minutes or so and just see if the
> date/time stamp had changed on any of the locations. I'd have to figure
> out which file was the primary (one with most recent date), then update
> the others. Actually, a BASH script might be better simply because of
> the overhead of loading the Perl interpreter.

I don't really regard this as a very elegant solution for the problem.
It doesn't fix the problem, but rather applies a band-aid which has to
be taken care of.

Maybe we can at least start with moving the DNS servers
from /var/ipfire/dns/settings to /var/ipfire/ethernet/settings for DHCP,
too. That leaves us with the PPP profiles which is not that bad I guess.

Doing that would just require to fix the system scripts that read the
configuration and changing the CGI script.

> 
> That may not be the best idea, since it would increase the load on the
> system, and it would not be instantaneous. But, it could be a band-aid.
> 
> Or, like you said, just leave it alone and wait for v3. Most people will
> use the GUI, and it definitely says in there that a reboot must happen
> before that change takes effect (or, disconnect/connect).
> 
> Anyway, let me know if you want a script. I think the patches would be
> too much since I assume it is written by more than one place? However,
> it if it only changed from setup and the GUI, I can dust off my 20 year
> old C skills and see if I can figure out a patch.
> 
> If you want to fix it now, let me know if it is only changed in setup
> and the WebUI, and I'll be happy to take a look at it.

Let me know if you want to do this task.

-Michael

> 
> Rod
> 
> On 10/27/2014 07:51 PM, Michael Tremer wrote:
> > Hi,
> > 
> > DNS settings are actually stored in even more locations. These depend on
> > the method you use for connecting with the Internet.
> > 
> > I have thought about cleaning this up a couple of times. None of the
> > easy solutions makes the situation any better and therefore all remained
> > untouched.
> > 
> > This has been solved in IPFire 3 by just using one pool of DNS servers
> > and prioritizing them by the preference of the admin. This solution is
> > way over the top for IPFire 2 which always has just one uplink.
> > 
> > So I would still say to leave this as it is - unless you have got a
> > really good idea (or even better patches) for an easy solution that
> > doesn't make things worse.
> > 
> > Best,
> > -Michael
> > 
> > On Sat, 2014-10-25 at 22:46 -0500, R. W. Rodolico wrote:
> >> I was having some problems with a remote router not resolving addresses,
> >> so I started 'setup' from the CLI to change them. When I did this, I had
> >> the same problem (and suspected a network issue). Clearing dnsmasq
> >> (dnsmasqctl restart) showed it was still using the old DNS servers.
> >>
> >> The router is using DHCP for the red interface, but I am trying to
> >> override the DNS given by them (it is their little monitoring tool).
> >>
> >> Investigating, I found the following happened:
> >>
> >> 1. DNS settings appear in two places
> >>    /var/ipfire/ethernet/settings
> >>    /var/ipfire/dns/settings
> >>
> >> 2. 'setup' modifies /var/ipfire/ethernet/settings, but does not modify
> >> /var/ipfire/dns/settings. It appears dnsmasql uses /var/ipfire/dns/settings.
> >>
> >> 3. In the webui, 'Network | Assign DNS Server' reads
> >> /var/ipfire/dns/settings, so changes made there correctly work.
> >>
> >> Resolution:
> >>
> >> Either fix the code or simply remove the text that says you can change
> >> the DNS for DHCP there:
> >>
> >> Enter the DNS and gateway information.  These settings are used only
> >> with Static IP (and DHCP if DNS set) on the RED interface.
> >>
> >> Frankly, the latter would be easiest, and most people will use the
> >> WebGUI, and weirdos like me will simply edit the settings file if I
> >> happen to need to change it from the CLI.
> >>
> >> Rod
> 

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