Add **SRV records** to the server browser / direct connect.
//https://en.wikipedia.org/wiki/SRV_record//
In other words SRV records would allow server administrators to point dns names like **arma.my.domain** and **arma2.my.domain** to **two different servers.**
They could be defined like :
_arma._udp.**arma**.my.domain. 86400 IN SRV 10 60 **2302 ** my.domain.
_arma._udp.**arma2**.my.domain. 86400 IN SRV 10 60 **2312 ** my.domain.
with
**arma.my.domain** pointing on the server at my.domain with **port 2302 **
and
**arma2.my.domain** pointing on the server at my.domain with **port 2312**