Re: F23 Server: unexpected network problem

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On Thu, 2015-12-10 at 16:49 -0800, Gordon Messmer wrote:
> On 12/09/2015 11:36 PM, Cristian Sava wrote:
> > We are in stable stage so I do not expect NIC name changes without
> > consistent reason.
> 
> I've never noticed it before, but this does look like a bug in
> Fedora.
> 
> On my workstation, for instance,
> /var/log/anaconda/anaconda.journal.log 
> contains:
>   Jul 21 21:21:39 localhost systemd-udevd[537]: renamed network 
> interface eth0 to em1
> 
> That interface is configured in 
> /etc/sysconfig/network-scripts/ifcfg-em1, and 
> /etc/udev/rules.d/70-persistent-net.rules is empty, but the interface
> is 
> *actually* named eno1.
> 
> There are two systems that rename interfaces in Fedora, biosdevname
> and 
> systemd's net.ifnames.  I'm not sure which of them is at fault
> here.  
> However, you could install with both disabled by booting with 
> "net.ifnames=0 biosdevname=0"
> 
> http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkIn
> terfaceNames/
Thank you for investigating this.
The real problem seem to be that almost anyone using F23 (fresh install
- server/workstation) is hit by this bug.
Hidden security problems are waiting.
I don't know how it passed unnoticed till now but someone have to fix
that.
C.S.

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