-tlsproxy -a digest-authentication 4711
-server --x509certfile "$srcdir/server.pem" \
- --x509keyfile "$srcdir/server-key.pem"
+tlsproxy_background -a digest-authentication 4711
+server_background --x509certfile "$srcdir/server.pem" \
+ --x509keyfile "$srcdir/server-key.pem"