Re: How to continue operation with comp-lzo and/or migrate from it?

Eike Lohmann <[email protected]> Mon, 1 Jul 2024 09:13:59 +0200
Newsgroups gmane.network.openvpn.user
Message-ID <[email protected]>
Dear Devs,

what is the state of --compress migrate?

Thank you.


Am 18.06.24 um 12:52 schrieb Eike Lohmann:
>
> Dear listusers,
>
> on a flavor we have
>
> - clients with comp-lzo in their local config and we have no access to 
> this clients. (can't change it)
>
> - very old clients below 2.3 (no peer info)
>
> - also "modern" clients of all versions 2.3.2 - 3.8.5
>
>
> Our minimum Cipher is AES-256-CBC as fallback, when does AES-256-CBC 
> is supported by openvpn? It could reveal the minimum client version.
>
>
> --allow-compression asym
>
> can be set, but clients will still compress. Clients without, can't 
> connect.
>
>
> --compress migrate
>
> clients > 2.3 get pushed "stub-v2" all other "comp-lzo no".
>
> What happens to clients wich does not support it? e.g. 2.2.x
>
> This parameter is not documented in the reference manual, it is still 
> supported in 2.6 and how long it may be supported?
>
>
> What could be the best way to operate it with a little attack surface 
> (voracle) but remaining compatibility for old clients?
>
>
> Thanks for all information on this topic.
>
>
>
>
>
>
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