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OpenVPN complaining of depreciated ciphers

ERROR: failed to negotiate cipher with server. Add the server’s cipher (‘AES-256-CBC’) to –data-ciphers (currently ‘AES-256-GCM:AES-128-GCM:CHACHA20-POLY1305’) if you want to connect to this server.

Fix:

sed -i 's/cipher AES-256-CBC/data-ciphers AES-256-CBC/' *.ovpn