OpenVPN server does not work as it can not find /etc/dhparam/dh-default.pem
Tested at Turris Shield:
Oct 21 14:45:27 turris openvpn(server_turris)[6136]: OpenVPN 2.4.7 aarch64-openwrt-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD]
Oct 21 14:45:27 turris openvpn(server_turris)[6136]: library versions: OpenSSL 1.1.1h 22 Sep 2020, LZO 2.10
Oct 21 14:45:27 turris openvpn(server_turris)[6136]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Oct 21 14:45:27 turris openvpn(server_turris)[6136]: OpenSSL: error:02001002:system library:fopen:No such file or directory
Oct 21 14:45:27 turris openvpn(server_turris)[6136]: OpenSSL: error:2006D080:BIO routines:BIO_new_file:no such file
Oct 21 14:45:27 turris openvpn(server_turris)[6136]: Cannot open /etc/dhparam/dh-default.pem for DH parameters
Oct 21 14:45:27 turris openvpn(server_turris)[6136]: Exiting due to fatal error