1. Intro

When you want to change the connection port of XenServer.
Default Port: 443

2. How to do

a. edit xapissl file

vi /opt/xensource/libexec/xapissl
    22 #ACCEPT=$2      ; comment
    23 ACCEPT=[PORT]   ; Add New line

b. restart service

systemctl restart xapi

c. check port

netstat -antup | grep stunnel