installed 2 different machine. Local network access ok. adsl modem port forwarding okey (21,22,23,53,80,110,143,443,587,3306,8080). Debian 6 installed other server running no problem. Ubuntu nginx server restrict access on internet. mxtoolbox.com my ip port scan results 23,53,80 success and 21,22,25,110,143..... and other port error "No connection could be made because the target machine actively refused it"
What is the solution ?