stefan-cplanet Hello, I manage openvpn server that uses tls-crypt , however I need to connect Synology nas to the server that doesn't seem to support it so I need to change to tls-auth. Configuration is like this in server.conf local 10.0.0.10 port 1195 proto udp dev tun ca ca.crt cert server.crt key server.key dh dh.pem auth SHA512 tls-crypt tc.key topology subnet server 10.9.0.0 255.255.255.0 push "redirect-gateway def1 bypass-dhcp" ifconfig-pool-persist ipp.txt push "dhcp-option DNS 213.133.100.100" push "dhcp-option DNS 213.133.99.99" push "dhcp-option DNS 213.133.98.98" keepalive 10 120 cipher AES-256-CBC user nobody group nogroup persist-key persist-tun status openvpn-status.log verb 3 crl-verify crl.pem explicit-exit-notify To change I tried to change tls-crypt tc.key into tls-auth tc.key 0 , and on the vpn client I added key-direction 1 and changed to tls-auth but it doesn't work. How can I fix the issue, I just need to know how to switch to tls-auth. Thank you in advance for the help
TinCanTech --tls-auth and --tls-crypt both use identical keys, so changing from one to the other is as you describe above. You must have done something wrong. https://forums.openvpn.net/viewtopic.php?f=30&t=22603#p68963
