Re: OpenSSL: error:0308010C:digital envelope routines::unsupported while reading CRL

Aleksandar Ivanisevic <[email protected]>
Newsgroups gmane.network.openvpn.user
Message-ID <[email protected]>

> On 30. Nov 2023, at 11:42, Aleksandar Ivanisevic <[email protected]> wrote:
> 
> 
>> On 29. Nov 2023, at 16:32, Antonio Quartulli <[email protected]> wrote:
>> 
>> Rather than the CRL changing, I am trying to imagine if the CRL is being "substituted" between startup and runtime. This is why I speculated about chroot.
>> Mounting the config folder is not far from that, but I presume the mount happens before starting the openvpn process, so I can't see how you end up with a different file.
>> 
>> Does /home/support/config/vpn/ contain anything before starting the openvpn process (and thus mounting the config dir)?
>> 
> 
> it contains everything, even the main config file is a symlink to the file in that dir
> 
> $ ls -al /etc/openvpn/server/qbs.conf 
> lrwxrwxrwx 1 root root 36 Apr 12  2020 /etc/openvpn/server/qbs.conf -> /home/support/config/vpn/server.conf
> 
> I don’t remember why I didn’t just override the WorkingDirectory, it was a couple of years ago when I was setting this up, probably wanted not to confuse other admins seeing the vpn server running but no config in the usual place.
> 
> But you might be onto something, I just tried on the test server just overriding the WorkingDirectory and that worked, will try in production this evening and report back.

Well, what do you know, it worked! No more error with the identical config.

I will leave it like this (i.e. systemd unit WorkingDirectory pointing to config dir and nothing in  /etc/openvpn/server/) since this is a much cleaner solution, i.e. no symlinks and I don’t have to reference full paths everywhere so the config file look a bit less scary ;)

If anyone wants to investigate further why would symlinking the main config file behave differently than pointing to it directly, I can help with testing.

Thank you Antonio for useful hints.

regards,

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