>On Saturday, January 6th, 2024 at 12:27 PM, Gert Doering <g...@greenie.muc.de> 
>wrote:


> Hi,
> 
> On Sat, Jan 06, 2024 at 07:03:37AM +0000, Peter Davis wrote:
> 
> > 1- But I need to put the server and client keys in /etc/openvpn/server and 
> > /etc/openvpn/client directories. Am I wrong?
> 
> 
> Server keys go to the server file system.
> 
> Client keys go to the client file system.
> 
> CA cert goes everywhere, as it's the binding part that permits either
> side to verify each other.
> 
> > 2- I used these lines in the server and client configuration files:
> > 
> > data-ciphers AES-256-GCM
> > cipher AES-256-GCM
> 
> 
> Just... don't. --cipher is a no-op in 2.6.x, and data-ciphers already
> contains AES-256-GCM, so setting these will just make your config file
> longer, and do no good.
> 
> gert
> --
> "If was one thing all people took for granted, was conviction that if you
> feed honest figures into a computer, honest figures come out. Never doubted
> it myself till I met a computer with a sense of humor."
> Robert A. Heinlein, The Moon is a Harsh Mistress
> 
> Gert Doering - Munich, Germany g...@greenie.muc.de


Hi,
Thanks again.
I'm using OpenVPN 2.6.3 x86_64-pc-linux-gnu.

I removed "cipher AES-256-GCM" from the configuration file and I see the 
following message in the log file:

2024-01-06 13:28:03 Note: --cipher is not set. OpenVPN versions before 2.5 
defaulted to BF-CBC as fallback when cipher negotiation failed in this case. If 
you need this fallback please add '--data-ciphers-fallback BF-CBC' to your 
configuration and/or add BF-CBC to --data-ciphers.
2024-01-06 13:28:03 --user specified but lacking CAP_SETPCAP. Cannot retain 
CAP_NET_ADMIN. Disabling data channel offload

Why?

Do you mean that in OpenVPN version 2.6, AES-256-GCM is enabled by default?


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