[Koha] Why are there two SIP2 ports in Koha?

[Michael Kuhn]

Hi Galen and Chris

Many thanks for your quick answers! So we will however deactivate the 
unneeded SIP2 server on port 8023.

 > Of course SIP2 is hideously insecure so those ports should never be
 > exposed except on localhost and run through stunnel or a VPN.
 >
 > If you expose unencrypted SIP2 traffic on a network then you are
 > sending all sorts of personal info unencrypted, most likely violating
 > the GDPR. And definitely opening yourself up to being compromised.

Thanks for clarifying that. We will try to find a way to secure the 
unencrypted SIP2 traffic (most probably using stunnel).

Best wishes: Michael
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