Gluster users - Dec 2017 - What’s the purpose of /var/lib/glusterd/nfs/secret.pem.pub ?

Some time ago I read and followed this quide for installing and
configuring Gluster:
http://blog.gluster.org/linux-scale-out-nfsv4-using-nfs-ganesha-and-glusterfs-one-step-at-a-time/

with steps to create certificate:

/var/lib/glusterd/nfs/secret.pem
/var/lib/glusterd/nfs/secret.pem.pub

and distribute public and private cert file among nodes.

I?ve just tried new Gluster 3.12 and I forgot to create the
certificate and I created new cluster and it worked:

sudo gluster peer probe SecondNode
peer probe: success.
sudo gluster peer probe ThirdNode
peer probe: success.

After I mounted Gluster volumes everything seems to work and Gluster
replicates files.
So why do I need the certificate?

Thank you.

Kind regards,
Adam

On Friday 01 December 2017 03:04 AM, Adam Ru wrote:
> Some time ago I read and followed this quide for installing and
> configuring Gluster:
>
http://blog.gluster.org/linux-scale-out-nfsv4-using-nfs-ganesha-and-glusterfs-one-step-at-a-time/
>
> with steps to create certificate:
>
> /var/lib/glusterd/nfs/secret.pem
> /var/lib/glusterd/nfs/secret.pem.pub
>
> and distribute public and private cert file among nodes.
>
> I?ve just tried new Gluster 3.12 and I forgot to create the
> certificate and I created new cluster and it worked:
>
> sudo gluster peer probe SecondNode
> peer probe: success.
> sudo gluster peer probe ThirdNode
> peer probe: success.
>
> After I mounted Gluster volumes everything seems to work and Gluster
> replicates files.
> So why do I need the certificate?
Hi,

If u are not using nfs-ganesha then those files are not required.
Those certificates are used for internal communications for 
setting/modifying the nfs-ganesha HA,
nothing to do with gluster at all.
Regards,
Jiffin

> Thank you.
>
> Kind regards,
> Adam
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