Hostname resolve fails after upgrade from 4.2 to 4.5

[Guru Prasad]

Thank you very much for the explanation Uri.

Thanks
Guru

On May 12, 2017 12:13 AM, "Uri Simchoni" <uri at samba.org> wrote:

> On 05/11/2017 09:33 PM, Guru Prasad wrote:
> > Thank you very much Uri.
> > It means winbindd handles netbios name resolution from samba 4.4.0.
> > Just to understand, before samba 4.4.0 under which process this netbios
> > name resolution  was handled?
> >
> It was under the process that called getaddrinfo() or any other glibc
> name resolution routine.
>
> Glibc has a plugin mechanism (name service switch, or nsswitch for
> short) which loads plugins acording to /etc/nsswitch.conf. When a
> program (such as ping) calls getaddrinfo(), the glibc implementation
> loads those plugins and runs them according to the order and policy
> defined in /etc/nsswitch.conf.
>
> Prior to 4.4.0, the wins plugin itself would send and receive netbios
> packets, from the context that called getaddrinfo() or any other such
> function. Since 4.4.0, it sends a request to winbindd (over a Unix
> domain socket) and awaits response.
>
> Uri
> > Thanks
> > Guru
> >
>