17.10 network changes

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17.10 network changes

Bruce Marshall
Does anyone have a clue as to what changes were made to network setup in
Artful??   I've been using static IP addresses within my network for
years but now the system seems to be ignoring anything in the
/etc/network/interfaces  file.   And networking.service  is gone which
would be ok if everything else worked...

All I can get is a DHCP address from within my network.  Been looking at
documentation for any changes to networking but haven't found any yet.


Any help would be appreciated....




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Re: 17.10 network changes

Valorie Zimmerman
Hi Bruce,

On Sun, Oct 1, 2017 at 1:45 PM, Bruce Marshall <[hidden email]> wrote:

> Does anyone have a clue as to what changes were made to network setup in
> Artful??   I've been using static IP addresses within my network for years
> but now the system seems to be ignoring anything in the
> /etc/network/interfaces  file.   And networking.service  is gone which would
> be ok if everything else worked...
>
> All I can get is a DHCP address from within my network.  Been looking at
> documentation for any changes to networking but haven't found any yet.
>
>
> Any help would be appreciated....

I've seen a few people complaining about this, but it seems a rare
issue. There were some networking changes by the Ubuntu devels, so you
should perhaps search Launchpad for bug reports and add your details
there.

Kubuntu doesn't handle networking beyond providing the Plasma widgets
that display what's going on; that is all done at the systemd and
networkmanager level, by the core Ubuntu developers.

Valorie

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Re: 17.10 network changes

Bruce Marshall
Thanks...  took a quick look but didn’t see anything that seemed like the problem.  Will keep looking.


From: Valorie Zimmerman <[hidden email]>
To: Kubuntu user technical support <[hidden email]>
Subject: Re: 17.10 network changes
Date: 10/1/17, 7:06 PM


Hi Bruce,

On Sun, Oct 1, 2017 at 1:45 PM, Bruce Marshall <[hidden email]> wrote:


> Does anyone have a clue as to what changes were made to network setup in
> Artful?? I've been using static IP addresses within my network for years
> but now the system seems to be ignoring anything in the
> /etc/network/interfaces file. And networking.service is gone which would
> be ok if everything else worked...
>
> All I can get is a DHCP address from within my network. Been looking at
> documentation for any changes to networking but haven't found any yet.
>
>
> Any help would be appreciated....

I've seen a few people complaining about this, but it seems a rare
issue. There were some networking changes by the Ubuntu devels, so you
should perhaps search Launchpad for bug reports and add your details
there.

Kubuntu doesn't handle networking beyond providing the Plasma widgets
that display what's going on; that is all done at the systemd and
networkmanager level, by the core Ubuntu developers.

Valorie

--
http://about.me/valoriez

--
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Re: 17.10 network changes

David-2
Hi, 

Two things to check:

1. What is the name of your network device?  I had an update change the ethernet device name from eth0 to enp3s1 or some such nonsense that is supposed to give consistent naming even if I add in additional adapters into my laptop.  You can grep through dmesg to find out.  Or you can find the name out when you ip addr .

2. Is network maanger running?

You can force network maanger to use the interraces file.  The debian site tells you how. 
https://wiki.debian.org/NetworkManager

3. Okay, I lied there is a third point.  Have a looked through your syslog to find out what's happening?

Good luck.  Thsee things are frustrating.  I had a similar problem getting network manager to work.  The problem was a certain zero byte file was missing.

David

On 2 Oct 2017 01:27, "Bmarsh" <[hidden email]> wrote:
Thanks...  took a quick look but didn’t see anything that seemed like the problem.  Will keep looking.


From: Valorie Zimmerman <[hidden email]>
To: Kubuntu user technical support <[hidden email]>
Subject: Re: 17.10 network changes
Date: 10/1/17, 7:06 PM


Hi Bruce,

On Sun, Oct 1, 2017 at 1:45 PM, Bruce Marshall <[hidden email]> wrote:


> Does anyone have a clue as to what changes were made to network setup in
> Artful?? I've been using static IP addresses within my network for years
> but now the system seems to be ignoring anything in the
> /etc/network/interfaces file. And networking.service is gone which would
> be ok if everything else worked...
>
> All I can get is a DHCP address from within my network. Been looking at
> documentation for any changes to networking but haven't found any yet.
>
>
> Any help would be appreciated....

I've seen a few people complaining about this, but it seems a rare
issue. There were some networking changes by the Ubuntu devels, so you
should perhaps search Launchpad for bug reports and add your details
there.

Kubuntu doesn't handle networking beyond providing the Plasma widgets
that display what's going on; that is all done at the systemd and
networkmanager level, by the core Ubuntu developers.

Valorie

--
http://about.me/valoriez

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Re: 17.10 network changes

Bruce Marshall



From: David <[hidden email]>
To: [hidden email], Kubuntu user technical support <[hidden email]>
Subject: Re: 17.10 network changes
Date: 10/2/17, 1:14 PM



Hi, 

Two things to check:

1. What is the name of your network device?  I had an update change the ethernet device name from eth0 to enp3s1 or some such nonsense that is supposed to give consistent naming even if I add in additional adapters into my laptop.  You can grep through dmesg to find out.  Or you can find the name out when you ip addr .

Thanks for the reply.   Name is enp3s0 and has been that since 16.10.  And that name is picked up by dhcp but I can’t get a static address assigned like I could in 16.10



2. Is network maanger running?

Yes, and I’ve played with starting and stopping it as well as a lot of other tricks.  


You can force network maanger to use the interraces file.  The debian site tells you how. 
https://wiki.debian.org/NetworkManager


Will take a look at this.

3. Okay, I lied there is a third point.  Have a looked through your syslog to find out what's happening?

Using dmesg I see that enp3s0 is shown as up and down many times during startup...  so maybe it is a timing problem.  Will do some more looking at syslog.  I WAS able to use ifconfig to assign the static address that is in the interfaces file and that works as a temp fix so it indicates everything is working except the use of the interfaces file.  But this problem is a showstopper as far as I am concerned.

Good luck.  Thsee things are frustrating.  I had a similar problem getting network manager to work.  The problem was a certain zero byte file was missing.


Hmmm.  Want to tell what file that was?

David

On 2 Oct 2017 01:27, "Bmarsh" <[hidden email]> wrote:

Thanks...  took a quick look but didn’t see anything that seemed like the problem.  Will keep looking.


From: Valorie Zimmerman <[hidden email]>
To: Kubuntu user technical support <[hidden email]>
Subject: Re: 17.10 network changes
Date: 10/1/17, 7:06 PM


Hi Bruce,

On Sun, Oct 1, 2017 at 1:45 PM, Bruce Marshall <[hidden email]> wrote:


> Does anyone have a clue as to what changes were made to network setup in
> Artful?? I've been using static IP addresses within my network for years
> but now the system seems to be ignoring anything in the
> /etc/network/interfaces file. And networking.service is gone which would
> be ok if everything else worked...
>
> All I can get is a DHCP address from within my network. Been looking at
> documentation for any changes to networking but haven't found any yet.
>
>
> Any help would be appreciated....

I've seen a few people complaining about this, but it seems a rare
issue. There were some networking changes by the Ubuntu devels, so you
should perhaps search Launchpad for bug reports and add your details
there.

Kubuntu doesn't handle networking beyond providing the Plasma widgets
that display what's going on; that is all done at the systemd and
networkmanager level, by the core Ubuntu developers.

Valorie

--
http://about.me/valoriez

--
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Re: 17.10 network changes

David-2

Hmmm.  Want to tell what file that was?
I'm not at home at the moment.  I found by comparing 2 installs, and I couldn't quite believe it when it fixed it.  

From a quick Google, I think is this file, located under /etc... and /var....
10-globally-managed-devices.conf


I'll have another look when I get home.

On 2 Oct 2017 6:40 pm, "Bmarsh" <[hidden email]> wrote:



From: David <[hidden email]>
To: [hidden email], Kubuntu user technical support <[hidden email]>
Subject: Re: 17.10 network changes
Date: 10/2/17, 1:14 PM



Hi, 

Two things to check:

1. What is the name of your network device?  I had an update change the ethernet device name from eth0 to enp3s1 or some such nonsense that is supposed to give consistent naming even if I add in additional adapters into my laptop.  You can grep through dmesg to find out.  Or you can find the name out when you ip addr .

Thanks for the reply.   Name is enp3s0 and has been that since 16.10.  And that name is picked up by dhcp but I can’t get a static address assigned like I could in 16.10



2. Is network maanger running?

Yes, and I’ve played with starting and stopping it as well as a lot of other tricks.  


You can force network maanger to use the interraces file.  The debian site tells you how. 
https://wiki.debian.org/NetworkManager


Will take a look at this.

3. Okay, I lied there is a third point.  Have a looked through your syslog to find out what's happening?

Using dmesg I see that enp3s0 is shown as up and down many times during startup...  so maybe it is a timing problem.  Will do some more looking at syslog.  I WAS able to use ifconfig to assign the static address that is in the interfaces file and that works as a temp fix so it indicates everything is working except the use of the interfaces file.  But this problem is a showstopper as far as I am concerned.

Good luck.  Thsee things are frustrating.  I had a similar problem getting network manager to work.  The problem was a certain zero byte file was missing.


Hmmm.  Want to tell what file that was?

David

On 2 Oct 2017 01:27, "Bmarsh" <[hidden email]> wrote:

Thanks...  took a quick look but didn’t see anything that seemed like the problem.  Will keep looking.


From: Valorie Zimmerman <[hidden email]>
To: Kubuntu user technical support <[hidden email]>
Subject: Re: 17.10 network changes
Date: 10/1/17, 7:06 PM


Hi Bruce,

On Sun, Oct 1, 2017 at 1:45 PM, Bruce Marshall <[hidden email]> wrote:


> Does anyone have a clue as to what changes were made to network setup in
> Artful?? I've been using static IP addresses within my network for years
> but now the system seems to be ignoring anything in the
> /etc/network/interfaces file. And networking.service is gone which would
> be ok if everything else worked...
>
> All I can get is a DHCP address from within my network. Been looking at
> documentation for any changes to networking but haven't found any yet.
>
>
> Any help would be appreciated....

I've seen a few people complaining about this, but it seems a rare
issue. There were some networking changes by the Ubuntu devels, so you
should perhaps search Launchpad for bug reports and add your details
there.

Kubuntu doesn't handle networking beyond providing the Plasma widgets
that display what's going on; that is all done at the systemd and
networkmanager level, by the core Ubuntu developers.

Valorie

--
http://about.me/valoriez

--
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Re: 17.10 network changes

David Fletcher-5
In reply to this post by David-2
On Mon, 2017-10-02 at 18:14 +0100, David wrote:
> 1. What is the name of your network device?  I had an update change
> the ethernet device name from eth0 to enp3s1 or some such nonsense
> that is supposed to give consistent naming even if I add in
> additional adapters into my laptop.  You can grep through dmesg to
> find out.  Or you can find the name out when you ip addr .

A couple of years ago I did a fresh server install which says it is
"Ubuntu 14.04.5 LTS". I found at the time that the network device was
no longer called eth1. I just "went with the flow" and edited the
interfaces file thus:-

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto em1
#iface em1 inet dhcp
#Changes to:-
iface em1 inet static
  address          192.168.2.2
  netmask          255.255.255.0
  network          192.168.2.0
  broadcast        192.168.2.255
  gateway          192.168.2.1
  dns-nameservers  208.67.222.222 208.67.220.220 192.168.2.1 8.8.8.8

For me these settings have been working ever since. I don't know know
or care why eth1 has changed to em1, just that it works.

Dave

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Re: 17.10 network changes

Bruce Marshall
In reply to this post by David-2
On 10/02/2017 01:14 PM, David wrote:
> You can force network maanger to use the interraces file.  The debian
> site tells you how.
> https://wiki.debian.org/NetworkManager

This fix works great....   and will do as a work-around...   The
description says that NetworkManager doesn't handle the items in the
'interfaces' file...  any idea who does? (or is supposed to and isn't)

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