You can use any ports as you like, as long as they are not in use in your system, but must match with rpcport=44843 in the config file you set.
I suggest solo and backup with this pool with no fee and you don't need to register  
gminer.exe --scrypt -o localhost:44843 -u (match with config rpcuser) -p (match with rpcpassword) -o stratum+tcp://www.rejectmining.com:6000 -u (replace with your water wallet address)  -p anything

Happy mining