Re: Network Manager does not find system wide connections

[Dan Williams <dcbw redhat com>]

On Sat, 2009-08-01 at 13:31 -0400, John Mahoney wrote:
> Here is a quick, incomplete overview of the configs.  I recommend
> playing with the program cnetworkmanager to see how the dbus works.
> 
> The following Doc assumes Ubuntu 9.04 with Gnome
> This doc has no License feel free to edit, sell, hide, destroy,
> distribute.
> User-settings
> Note - only the first person logged into the system has access to
> user-settings.(needs verification)

Correct.

> user settings are stored in the directory
> ~/.gconf/system/networking/connections/[num] and
> ~/.gconf/system/networking/wireless/networks
>         -(note:someone please differentiate the two folders)
>         -each number is a folder representing a connection(Ethernet,
> wifi, cellular, etc)
>         -most these settings can be changed through
> system--->Preferences--->Network Connections
> The preferred method to view these settings is through
> gcong-editor( most those settings can be changed through the
> Network-Manager GUI and that is the preferred method)
> Applications--->Accessories--Terminal
> user user-laptop:~$ gconf-editor
> system--->networking--->networking
>                                 |
>                                 |-->connections
>                                 |
>                                 |-->wireless
> #*************************************************************************************
> System settings
> -These connections are available to all users and before xserver
> loads(needs verification)

Correct.

> -System connections are stored
> in /etc/NetworkManager/system-connections/

Not entirely correct.  System connections are provided by plugins, and
the plugin may read/write the connections it provides from anywhere.
Their main purpose is to interpret the normal distro network config
files so you don't  have to learn some new config format if you don't
want to.  So, of the plugins currently available:

keyfile (rw): /etc/NetworkManager/system-connections/
ifcfg-rh (rw): /etc/sysconfig/network-scripts/
ifcfg-suse (r): /etc/sysconfig/network-scripts/
ifupdown (r): /etc/network/interfaces

(rw) = read/write capability, (r) = read-only

Dan

> #************************************************************************************
> Fun facts
> *go to system--->Preferences--->Network Connections
> -To make a user setting available as a system setting 
>         *highlight connection, select edit, and check box Available to
> all users(bottom corner)
> -If a connection is not a wan and will only be used for local
> access(aka. never get default route)
>         *highlight connection, select edit, select tab ipv4 settings,
> select routes, check box "use connection for resource on its network"
>         *note:you can also add custom routes to be added in this area
> 
> 
> On Sat, Aug 1, 2009 at 7:14 AM, Timothy Murphy <gayleard eircom net>
> wrote:
>         Brian Morrison wrote:
>         
>         >> The whole point of Linux is that it is not magic;
>         >> you are meant to be able to work out what is going on.
>         
>         > There is a complex interaction between NM, dbus and various
>         other
>         > things like udev, hal (becoming deprecated), PolicyKit etc.
>         All of
>         > these packages do something different but in a way that
>         isn't always
>         > clear.
>         >
>         > If anyone has any bright ideas about how to describe their
>         interaction
>         > in a clear and simple manner please go ahead. I have not
>         managed to
>         > work it out completely, so I suppose I should feel lucky
>         that NM works
>         > for me.
>         
>         
>         You clearly have a pretty good idea of how NM works.
>         If you, or someone like you, could just pen a short account
>         that would be immensely helpful.
>         If there were mistakes they could quickly be corrected.
>         
>         I would love to know, for example, which files NM looks at,
>         or which files one can usefully change.
>         I just get hints from time to time in various postings
>         but there doesn't seem to be anything written down.
>         
>         --
>         Timothy Murphy
>         e-mail: gayleard /at/ eircom.net
>         tel: +353-86-2336090, +353-1-2842366
>         s-mail: School of Mathematics, Trinity College, Dublin 2,
>         Ireland
>         
>         
>         
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