Key length upgrade without losing support for older keys

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thhart
OpenVpn Newbie
Posts: 4
Joined: Tue Oct 06, 2015 7:44 am

Key length upgrade without losing support for older keys

Post by thhart » Tue Sep 24, 2019 11:02 am

I want to upgrade the key length for the authentication on a VPN server 2.4.x. However I still want to support older keys for a specific amount of time. Is there a configuration thinkable in which there are used multiple server keys without using different ports or subnets?

Thanks
Thomas

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TinCanTech
OpenVPN Protagonist
Posts: 6135
Joined: Fri Jun 03, 2016 1:17 pm

Re: Key length upgrade without losing support for older keys

Post by TinCanTech » Tue Sep 24, 2019 11:12 am

thhart wrote:
Tue Sep 24, 2019 11:02 am
Is there a configuration thinkable in which there are used multiple server keys without using different ports or subnets?
No. Best option is run two servers.

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