Client Configuration Sample

Ports: 12788 (connection) and 12789 (RPC)
Launch your wallet, then open the %APPDATA% folder
in the mintcoin folder, create a file called MintCoin.conf (it is case sensitive under Linux and Mac)
For a longer explanation, read this post
listen=1
addnode=2.3.235.89
addnode=5.39.90.17
addnode=5.135.161.122
addnode=24.1.36.30
addnode=24.20.103.115
addnode=24.203.12.17
addnode=37.229.38.196
addnode=50.151.70.41
addnode=50.171.251.116
addnode=58.60.220.46
addnode=65.25.244.83
addnode=65.31.204.178
addnode=67.180.128.93
addnode=67.183.32.150
addnode=68.145.81.59
addnode=71.89.162.42
addnode=71.164.166.156
addnode=71.204.235.217
addnode=75.174.4.1
addnode=75.179.53.22
addnode=76.91.118.4
addnode=78.27.187.7
addnode=78.83.27.181
addnode=78.88.67.121
addnode=78.139.69.111
addnode=78.230.105.98
addnode=79.103.60.211
addnode=79.166.77.203
addnode=80.219.19.38
addnode=82.73.249.168
addnode=82.131.33.87
addnode=82.233.163.250
addnode=83.142.4.39
addnode=84.25.66.65
addnode=86.131.144.204
addnode=90.204.65.190
addnode=91.61.40.108
addnode=93.103.143.167
addnode=96.18.173.160
addnode=96.244.241.62
addnode=97.81.64.44
addnode=98.177.158.203
addnode=98.207.109.245
addnode=99.136.121.44
addnode=99.245.184.159
addnode=105.227.248.231
addnode=107.188.132.171
addnode=109.230.231.157
addnode=111.161.17.76
addnode=115.187.228.119
addnode=118.123.116.219
addnode=121.45.113.101
addnode=130.111.219.86
addnode=144.76.25.176
addnode=173.69.49.106
addnode=173.208.172.242
addnode=181.165.189.173
addnode=181.165.200.142
addnode=162.243.208.243
addnode=173.26.106.194
addnode=173.69.49.106
addnode=177.140.202.7
addnode=178.78.11.32
addnode=185.12.7.79
addnode=187.233.181.141
addnode=217.129.35.197
maxconnections=100
server=1
daemon=1
rpcuser=yourusername
rpcpassword=yourpassword
rpcport=12789
rpcconnect=127.0.0.1

Then re-launch your wallet