Re: [gdm-list] GDM and reverse DNS



Hi,

I do have investigated the problem of DNS previously presented. The
reverse DNS request is done in the function gdm_xdmcp_handle_request :

    * daemon/gdm-xdmcp-manager.c:1979

        if (entered) {
                GdmHostent *he;
                he = gdm_gethostbyaddr (clnt_sa);

The problem is that this request causes problem in the case that reverse DNS is not coherent. Does a patch to add a configuration item to disable this request would make sens?

Cheer, 

Francis Giraldeau



Francis Giraldeau a écrit :
> Hi,
>
> I did observed a misbehaviour of GDM in environment using dynamic dns
> update. When the reverse lookup doesn't correspond to the forward
> lookup, then GDM reply XDMCP willing not to the original request address.
>
> Workstation that request XDMCP is 1.2.3.4
>
> Reverse lookup :
> 1.2.3.4 -> name
>
> Direct lookup
> name -> 4.5.6.7
>
> XDMCP willing is send to 4.5.6.7
>
> To correct the problem, the DNS entries have to be fixed. If the DNS
> entry is deleted, then XDMCP is working appropriately. Correct DNS
> salvage may reduce the problem occurrence, but isn't preventing it
> completely.
>
> I didn't found option to configure GDM to avoid doing the reverse
> lookup, and just use the IP it received. Does this kind of options is a
> good idea?
>
> Have a nice day,
>
>   


-- 
Francis Giraldeau, Ing jr.
Analyste Infrastructure
Directeur Qualité
Téléphone : (819) 780-8955 poste 1111
Sans frais : 1-800-996-8955
Télécopieur : (819) 780-8871

Revolution Linux Inc.
2100 King ouest - bureau 260
Sherbrooke (Québec)
J1J 2E8 CANADA

http://www.revolutionlinux.com

Toutes les opinions et les prises de position exprimees dans ce courriel
sont celles de son auteur et ne representent pas necessairement celles
de Revolution Linux

Any views and opinions expressed in this email are solely those of the
author and do not necessarily represent those of Revolution Linux




[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]