Re: pppd and DNS [WAS:Driver for 536ep-Modem does not compile]

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Hello Philippe,

in openSUSE 10.3 (where everything works well), in the /etc/sysconfig/network/config file exists the simple and interesting option:

## Type:        yesno
## Default:     yes
# There are some services (ppp, ippp, dhcp-client, pcmcia, hotplug) that have to
# change the /etc/resolv.conf dynamically at certain times.  E.g. if ppp/ippp
# establishes a connection and is supplied by the peer with a list of
# nameservers. Or pcmcia needs to set the correct nameserver for the choosen
# configuration scheme. If you don't like these services to change
# /etc/resolv.conf at all, then set this variable to "no".
# If unsure, leave it at the default (which is "yes").
#
MODIFY_RESOLV_CONF_DYNAMICALLY="yes"

in openSUSE 11.4 (where the problems with resolv.conf arise), I find instead the following DNS relatet options:

NETCONFIG_DNS_POLICY="auto"
NETCONFIG_DNS_FORWARDER="resolver"
NETCONFIG_DNS_FORWARDER_FALLBACK="yes"
NETCONFIG_DNS_STATIC_SEARCHLIST=""
NETCONFIG_DNS_STATIC_SERVERS=""
NETCONFIG_DNS_RANKING="auto"

Please, give me some time to read (and hopefully, unterstand) the related man pages. Of course I would appreciate to get some hints :-)

In SuSE, the default dialer is Kinternet/Qinternet, not kppp. I have no experience with kppp, am a bit short of time, so I ask for your understanding that I will not tune into this issue. 

Regard
Ludwig
-------- Original-Nachricht --------
> Datum: Fri, 02 Mar 2012 16:33:34 +0100
> Von: Philippe Vouters <philippe.vouters@xxxxxxxxxxx>
> An: Wolfgang Junker <junker@xxxxxxxxxxxxxxxxxxx>, Ludwig Gebauer <ludwiggebauer@xxxxxxx>
> CC: Jacques Goldberg <goldberg@xxxxxxxxxxxxxxxxxxxx>, discuss@xxxxxxxxxxxxx, olivares14031@xxxxxxxxx
> Betreff: Re: pppd and DNS   [WAS:Driver for 536ep-Modem does not compile]

> Wolfgang, Ludwig,
> 
> Would such information be of some help for you to configure kppp ?
> http://www.nairaland.com/nigeria/topic-259411.0.html
> Regards,
> Philippe
> 
> Le 01/03/2012 00:02, Wolfgang Junker a écrit :
> > Dear Philippe,
> >
> > I think your hint to https://bugzilla.novell.com/show_bug.cgi?id=465679
> > really solves the problem:
> >
> > I didn't understand what they were saying but I have put
> >
> > NETCONFIG_DNS_POLICY="STATIC_FALLBACK ppp0 NetworkManager"
> >
> > into my /etc/sysconfig/network/config (or equivalently into the mask of
> > the editor of YAST for the Network-configuration under /etc/sysconfig).
> >
> > Now if I plug off the ethernet cable and do $wvdial I get a working
> > internet connection and ppp's DNS-address is dynamically added to
> > /etc/resolv.conf:
> >
> > search localdomain site
> > nameserver 195.50.140.248
> > nameserver 145.253.2.203
> > nameserver 192.168.0.1
> >
> > I still couldn't make kppp work (it says "modem doesn't answer") but I
> > hope to resolve this issue also.
> >
> > Many thanks for your help!
> > Wolfgang
> >
> >
> >
> > On Wed, 29 Feb 2012, Philippe Vouters wrote:
> >
> >> Hello Ludwig, Wolfgang,
> >>
> >> Have a look at this openSUSE bugzilla :
> >> https://bugzilla.novell.com/show_bug.cgi?id=465679
> >>
> >> I think this can indeed help you. This is very openSUSE specific
> >> Kind regards to both.
> >> Philippe
> >>
> >> Le 29/02/2012 21:50, Ludwig Gebauer a écrit :
> >>> Hello all,
> >>>
> >>> DHCP is installed, the system accepts to get adresses from a router
> >>> with DHCP server.
> >>>
> >>> Added usepeerdns to /etc/ppp/options. As described in man pppd, the
> >>> following files were created:
> >>>
> >>> /var/run/ppp_resolv.conf.ppp0
> >>> nameserver 195.129.111.50
> >>> nameserver 195.129.111.49
> >>>
> >>> /var/run/ppp_resolv.conf.dsl0
> >>> nameserver 217.0.43.1
> >>> nameserver 217.0.43.193
> >>>
> >>> ...but apparently not passed to pppd ("ppp 2.4.5-5.1-i586 from vendor
> >>> openSUSE"). Browsing via dial-up modem failed. The nameserver
> >>> addresses are correct.
> >>>
> >>> My DSL device is new, but rather old fashioned. It is merely a modem,
> >>> not a router. It does nothing else than convert IP-packages to DSL
> >>> format and vice versa. It can not be configured, it gets the internet
> >>> access data every time it is startet from pppd resp. smpppd.
> >>>
> >>>
> >>> Regards
> >>> Ludwig
> >>>
> >>>
> >>>
> >>> -------- Original-Nachricht --------
> >>>> Datum: Wed, 29 Feb 2012 15:05:38 +0200
> >>>> Von: Jacques Goldberg<goldberg@xxxxxxxxxxxxxxxxxxxx>
> >>>> An: Ludwig Gebauer<ludwiggebauer@xxxxxxx>
> >>>> CC: Philippe Vouters<philippe.vouters@xxxxxxxxxxx>,
> >>>> junker@xxxxxxxxxxxxxxxxxxx, olivares14031@xxxxxxxxx,
> >>>> discuss@xxxxxxxxxxxxx
> >>>> Betreff: Re: pppd and DNS [WAS:Driver for 536ep-Modem does not
> compile]
> >>>
> >>>> Dear Ludwig,
> >>>>
> >>>> Please forgive me to remind here, since I do not know you, that
> >>>> wvdial/wdialconf are not programs that operate the communication but
> >>>> rather friendly utilities that prepare the parameters (data) for the
> >>>> real program which does the work, pppd.
> >>>>
> >>>> Now please can you tell us if there is or not a line usepeerdns in
> >>>> your file /etc/ppp/options
> >>>>
> >>>> If there is not, please add that line.
> >>>>
> >>>> Then please try to connect to your analog modem ISP with wvdial and
> >>>> Auto
> >>>> DNS = yes, do not worry for what there is or not in /etc/resolv.conf
> >>>> because in this case pppd should NOT use /etc/resolv.conf, disconnect
> >>>> the cable from DSL to PC to make sure that you use the analog modem,
> >>>> and
> >>>> try to surf the Web, like Google or others. Does it work?
> >>>>
> >>>> If it works (it should), reconnect your DSL, make it work by adding
> the
> >>>> DSL DNS in /etc/resolv.conf if necessary (see Note) and give the
> >>>> following commands in a separate window as superuser (the first takes
> >>>> time), while wvdial (pppd) is still running: updatedb ,then this long
> >>>> composite command for f in `locate resolv.conf* `;do echo $f;cat
> >>>> $f;done so that you can see the contents of the various
> >>>> resolv.conf present on your computer.
> >>>>
> >>>> Note: if your DSL box is not old, and I am sure you were given a
> brand
> >>>> new one since DSL is new in your place, configure your PC (Linux) for
> >>>> the DSL connection to take DNS's from the DSL box (do not define
> >>>> /etc/resolv.conf and make it clear in the network s\manager
> >>>> definitions, no local name server, no local DNS). Your DSL box
> normally
> >>>> comes configured such that the DSL box takes itself automatically the
> >>>> DNS addresses from the network. You may want,and even need, to check
> >>>> that your DSL box is configured like that. That way you should not
> hear
> >>>> of DNS's any more once you have usepeerdns in your /etc/ppp/options
> >>>> .
> >>>>
> >>>> Regards
> >>>>
> >>>> Jacques
> >>>>
> >>>> n 02/29/012 02:00 PM, Ludwig Gebauer wroteresolv.conf
> >>>>
> >>>> With "Auto DNS = yes" in wvdial.conf, DNS addresses show up in the
> >>>> wvdial protocol, when running wvdial (ISP: www.yooline.de ), whether
> >>>> network manager is activated or not. wi And whether network manager
> is
> >>>> activated or not, I have to edit resolv.conf manually. Since a few
> >>>> weeks, DSL exists here in my village, 12 km afar from Brunswick (so
> >>>> much
> >>>> about the highly industrialisated etc. country Germany), and with my
> >>>> DSL
> >>>> _modem_ (not a modem _router_!) I have the same effect: DNS addresses
> >>>> must be transferred manually to resolv.conf. Seems to be an openSUSE
> >>>> 11.4 issue.
> >>>>
> >>>>
> >>>>
> >>>
> 
> -- 
> Philippe Vouters (Fontainebleau/France)
> URL: http://vouters.dyndns.org/

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