Altering /etc/network/interfaces stops some apps from working

[bmarsh at bmarsh.com]

> On Dec 31, 2015, at 3:47 AM, Mark Fraser <mfraz74+ubuntu at gmail.com> wrote:
> 
> In previous versions of Kubuntu I've created a static IP address by adding the interface to /etc/network/interfaces like:
>  
> # interfaces(5) file used by ifup(8) and ifdown(8) 
> auto lo 
> iface lo inet loopback 
> address 127.0.0.1 
> netmask 255.0.0.0 
> 
> # The primary network interface 
> iface eth0 inet static 
> dns-nameservers 192.168.2.1 
> address 192.168.2.102 
> netmask 255.255.255.0 
> gateway 192.168.2.1 
> auto eth0
> 
> In 15.10 this doesn't seem to work and has caused me numerous problems until I thought to revert it back to the original contents.
>  
> 1) KMail was unable to fetch any images and clicking on a link in KMail brought up a "file not found" error.
>  
> 2) Akregator wouldn't fetch from any feeds.
>  
> 3) I couldn't open a link from Konsole.
>  
> For now I have had to use network manager to configure a staic IP address, but is this a bug or am I doing something wrong?
> --
> Registered Linux User #466407 http://counter.li.org
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In 15.10, the names have been changed from eth0. To something like. enp20s.   That's a guess because I am not at my computer right now.

Look through your DMESG and find the new name and it will work.
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