| | 1 | {{{ |
| | 2 | #!html |
| | 3 | <p>By default, OpenVPN uses the <em>blowfish</em> cipher for tunnel encryption. For some reason, some versions of Slackware have an OpenSSL library built without Blowfish cipher support.</p> |
| | 4 | <p>The fix is either:</p> |
| | 5 | <ul> |
| | 6 | <li>Rebuild the OpenSSL library to include blowfish, or</li> |
| | 7 | <li>use the <strong>--cipher</strong> option to choose a different cipher. The command <strong>openvpn --show-ciphers</strong> will show the available ciphers. For example <strong>--cipher DES-EDE3-CBC</strong> will select Triple-DES encryption.</li> |
| | 8 | </ul> |
| | 9 | }}} |
| | 10 | |
| | 11 | [wiki:FAQ Return to FAQ] |
