Thank you,Thank you,Thank you I have write in postgres.conf tpcip_socket = true and port = 5432 now I have the elephant port... I have not currently of practical with system AIX and I have some difficulty with Linux sources adaptation C/C++ on AIX I want pass of my works on Linux, (you can see http//:82.127.82.195) Aix I am sorry if you find that http 80 no access I have some rules crazy with portsentry the result of one imperfect controls mastery. and some a war (friendly) with my access provider. Thanks