Re: debian 9 network configuration

2018-08-14 Thread john doe

On 8/14/2018 10:39 AM, Remigio wrote:

Il giorno martedì 14 agosto 2018 10:20:04 UTC+2, john doe ha scritto:

On 8/14/2018 9:05 AM, Remigio wrote:

Hi there,
recently I installed Debian 9 Stretch and I noticed that the network 
configuration management method was substantially changed.
Infact the file /etc/network/interfaces is almost empty despite I've inserted 
the network parameters during the installation process and network works now.
I tried searching on the web about this topic but I found lots of different 
answers.
Could you help me please to understand where are network configuration files 
and how to manage them?
Thank you so much
Regards



If your '/etc/network/interfaces' is empty with the exception of the lo
interface, it is most likely that your interfaces are configured by an
other software (NetworkManager, (NM), WICD, systemd-networkd ...).

What is the content of '/etc/resolv.conf'?:

$ cat /etc/resolv.conf

--
John Doe


Hi John, :-)

root@debian:~# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback



Looks good when using NM.



and

root@debian:~# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 10.30.10.140



In addition to the other answers you could also configure NetworkManager:

https://developer.gnome.org/NetworkManager/stable/NetworkManager.conf.html

Uninstalling a program is never an option you need to understand how 
that program works! :)
In the case of NM it's easier to use the front end but it is always nice 
to go command line or using config files  when needed.


--
John Doe



Re: debian 9 network configuration

2018-08-14 Thread Remigio
Il giorno martedì 14 agosto 2018 14:50:04 UTC+2, Greg Wooledge ha scritto:
> On Tue, Aug 14, 2018 at 12:05:34AM -0700, Remigio wrote:
...

Many thanks Greg for your clear exposition, I think that's what I was looking 
for.
Regards



Re: debian 9 network configuration

2018-08-14 Thread Joe
On Tue, 14 Aug 2018 12:31:22 +0100
Darac Marjal  wrote:

> On Tue, Aug 14, 2018 at 01:35:56AM -0700, Remigio wrote:
> > desktop or what other software did you install - XFCE, or Gnome  
> >> or KDE?  Then folks might be able to help ...
> >>
> >> Also, how would you -like- to configure your networking?  
> >
> >Hi Zenaan, :-)
> >the desktop environment is Xfce and I'd love to configure the
> >networking via shell. Thanks and regards
> >  
> 
> You can configure NetworkManager from a shell by using the nmcli
> command (upstream documentation at
> https://developer.gnome.org/NetworkManager/stable/nmcli.html)
> 
> For example:
>  nmcli radio wifi on
>  nmcli wifi list --rescan
>  nmcli dev wlp4s0 con "My Home Hotspot" password S3cure name "Home"
>  nmcli con up id "My Home Hotspot"
> 
> 

I think the context here is not so much the physical act of typing or
moving a mouse, it's having network software which is understood, and
which won't mess about with your settings when you're not looking.

I use NM on my netbook, and laptop when booted to Linux, and I find it
useful in dealing with assorted wifi and VPN situations. These days, it
Just Works, at least for me. But I would never allow it onto a server
or even a fixed workstation, nothing must ever change then, and a means
of configuration using a fixed text file cannot be beaten.

-- 
Joe



Re: debian 9 network configuration

2018-08-14 Thread Greg Wooledge
On Tue, Aug 14, 2018 at 12:05:34AM -0700, Remigio wrote:
> recently I installed Debian 9 Stretch
[...]
> Could you help me please to understand where are network configuration files 
> and how to manage them?

If, during the installation, you choose to install a Desktop Environment,
then Network Manager gets installed, and the configuration that would
normally go into /etc/network/interfaces (/e/n/i for short) is wiped out.

With your ethernet and/or wifi interfaces not listed in /e/n/i, NM takes
over and manages those interfaces.  For better or worse.

If, on the other hand, during the installation, you choose NOT to install
a Desktop Environment, then the installer writes the network configuration
stuff into /e/n/i for you, and NM is not installed.

On Tue, Aug 14, 2018 at 10:05:47AM +0100, Brian wrote:
> apt purge network-manager
> apt --purge autoremove
> 
> Then configure /e/n/i to your liking.

I second this recommendation for a desktop machine or a server.  I don't
know about laptops.



Re: debian 9 network configuration

2018-08-14 Thread Darac Marjal

On Tue, Aug 14, 2018 at 01:35:56AM -0700, Remigio wrote:

desktop or what other software did you install - XFCE, or Gnome

or KDE?  Then folks might be able to help ...

Also, how would you -like- to configure your networking?


Hi Zenaan, :-)
the desktop environment is Xfce and I'd love to configure the networking via 
shell.
Thanks and regards



You can configure NetworkManager from a shell by using the nmcli command 
(upstream documentation at https://developer.gnome.org/NetworkManager/stable/nmcli.html)


For example:
nmcli radio wifi on
nmcli wifi list --rescan
nmcli dev wlp4s0 con "My Home Hotspot" password S3cure name "Home"
nmcli con up id "My Home Hotspot"


--
For more information, please reread.


signature.asc
Description: PGP signature


Re: debian 9 network configuration

2018-08-14 Thread Remigio
...
> What desktop or what other software did you install - XFCE, or Gnome
> or KDE?  Then folks might be able to help ...
> 
> Also, how would you -like- to configure your networking?

Hi Zenaan, :-)
the desktop environment is Xfce and I'd love to manage networking via shell.
Thanks and regards



Re: debian 9 network configuration

2018-08-14 Thread Brian
On Tue 14 Aug 2018 at 01:14:45 -0700, Remigio wrote:

> ..-
> > What desktop or what other software did you install - XFCE, or Gnome
> > or KDE?  Then folks might be able to help ...
> > 
> > Also, how would you -like- to configure your networking?
> 
> Hi Zenaan, :-)
> the desktop is Xfce and I'de love to configure the networking via shell.
> Thanks and regards

apt purge network-manager
apt --purge autoremove

Then configure /e/n/i to your liking.

-- 
Brian.



Re: debian 9 network configuration

2018-08-14 Thread Remigio
 desktop or what other software did you install - XFCE, or Gnome
> or KDE?  Then folks might be able to help ...
> 
> Also, how would you -like- to configure your networking?

Hi Zenaan, :-)
the desktop environment is Xfce and I'd love to configure the networking via 
shell.
Thanks and regards



Re: debian 9 network configuration

2018-08-14 Thread Remigio
Il giorno martedì 14 agosto 2018 10:20:04 UTC+2, john doe ha scritto:
> On 8/14/2018 9:05 AM, Remigio wrote:
> > Hi there,
> > recently I installed Debian 9 Stretch and I noticed that the network 
> > configuration management method was substantially changed.
> > Infact the file /etc/network/interfaces is almost empty despite I've 
> > inserted the network parameters during the installation process and network 
> > works now.
> > I tried searching on the web about this topic but I found lots of different 
> > answers.
> > Could you help me please to understand where are network configuration 
> > files and how to manage them?
> > Thank you so much
> > Regards
> > 
> 
> If your '/etc/network/interfaces' is empty with the exception of the lo 
> interface, it is most likely that your interfaces are configured by an 
> other software (NetworkManager, (NM), WICD, systemd-networkd ...).
> 
> What is the content of '/etc/resolv.conf'?:
> 
> $ cat /etc/resolv.conf
> 
> -- 
> John Doe

Hi John, :-)

root@debian:~# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback


and 

root@debian:~# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 10.30.10.140

Thanks and regards



Re: debian 9 network configuration

2018-08-14 Thread Remigio
..-
> What desktop or what other software did you install - XFCE, or Gnome
> or KDE?  Then folks might be able to help ...
> 
> Also, how would you -like- to configure your networking?

Hi Zenaan, :-)
the desktop is Xfce and I'de love to configure the networking via shell.
Thanks and regards



Re: debian 9 network configuration

2018-08-14 Thread john doe

On 8/14/2018 9:05 AM, Remigio wrote:

Hi there,
recently I installed Debian 9 Stretch and I noticed that the network 
configuration management method was substantially changed.
Infact the file /etc/network/interfaces is almost empty despite I've inserted 
the network parameters during the installation process and network works now.
I tried searching on the web about this topic but I found lots of different 
answers.
Could you help me please to understand where are network configuration files 
and how to manage them?
Thank you so much
Regards



If your '/etc/network/interfaces' is empty with the exception of the lo 
interface, it is most likely that your interfaces are configured by an 
other software (NetworkManager, (NM), WICD, systemd-networkd ...).


What is the content of '/etc/resolv.conf'?:

$ cat /etc/resolv.conf

--
John Doe



Re: debian 9 network configuration

2018-08-14 Thread Zenaan Harkness
On Tue, Aug 14, 2018 at 12:05:34AM -0700, Remigio wrote:
> Hi there,
> recently I installed Debian 9 Stretch and I noticed that the network 
> configuration management method was substantially changed.
> Infact the file /etc/network/interfaces is almost empty despite I've inserted 
> the network parameters during the installation process and network works now.
> I tried searching on the web about this topic but I found lots of different 
> answers.
> Could you help me please to understand where are network configuration files 
> and how to manage them?

What desktop or what other software did you install - XFCE, or Gnome
or KDE?  Then folks might be able to help ...

Also, how would you -like- to configure your networking?



debian 9 network configuration

2018-08-14 Thread Remigio
Hi there,
recently I installed Debian 9 Stretch and I noticed that the network 
configuration management method was substantially changed.
Infact the file /etc/network/interfaces is almost empty despite I've inserted 
the network parameters during the installation process and network works now.
I tried searching on the web about this topic but I found lots of different 
answers.
Could you help me please to understand where are network configuration files 
and how to manage them?
Thank you so much
Regards

-- 
Remigio