Proxy listens to TCP home server on UDP port
Nikolai.Kondrashov at redhat.com
Mon Aug 4 11:22:19 CEST 2014
On 08/02/2014 12:56 PM, Alan DeKok wrote:
> Nikolai Kondrashov wrote:
>> Red Hat QA has noticed that a FreeRADIUS v3.0.1 server set up to use TCP
>> with a home server still listens for replies on UDP.
> No. It still opens a *port* on UDP. It only listens for replies on
> the same port that it sends packets from.
> In this case, since you only have TCP home servers, packets will be
> sent ONLY with TCP. The UDP proxy port will not be used for anything.
Understood, thank you, Alan.
>> Could this have been done to simplify handling of mixed-protocol server
> No. It happens because the server doesn't notice that it has no UDP
> traffic. So it still opens a proxy UDP port.
> The only downside to the proxy UDP port is that you have another port
> open. The server will never use the port for anything.
Can you tell how hard would it be to fix this and would a fix for this be
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