Hi thank you for answer.
Openpvn start with users admins right.
This is the server log :
Tue Nov 03 15:32:35 2015 151.72.194.78:52402 LZO compression initialized
Tue Nov 03 15:32:35 2015 151.72.194.78:52402 Control Channel MTU parms [ L:1542 D:166 EF:66 EB:0 ET:0 EL:0 ]
Tue Nov 03 15:32:35 2015 151.72.194.78:52402 Data Channel MTU parms [ L:1542 D:1450 EF:42 EB:135 ET:0 EL:0 AF:3/1 ]
Tue Nov 03 15:32:35 2015 151.72.194.78:52402 Local Options hash (VER=V4): '14168603'
Tue Nov 03 15:32:35 2015 151.72.194.78:52402 Expected Remote Options hash (VER=V4): '504e774e'
Tue Nov 03 15:32:35 2015 151.72.194.78:52402 TLS: Initial packet from 151.72.194.78:52402, sid=b793042f 309f01df
Tue Nov 03 15:32:36 2015 151.72.194.78:52402 VERIFY OK: depth=1, /C=IT/ST=FG/L=Manfredonia/O=OpenVPN/OU=OpenVpntest/CN=OpenVpn-Esplora/emailAddress=
test@test.it
Tue Nov 03 15:32:36 2015 151.72.194.78:52402 VERIFY OK: depth=0, /C=IT/ST=FG/O=OpenVPN/OU=OpenVpnSilac/CN=michele/emailAddress=
test@test.it
Tue Nov 03 15:32:37 2015 151.72.194.78:52402 Data Channel Encrypt: Cipher 'BF-CBC' initialized with 128 bit key
Tue Nov 03 15:32:37 2015 151.72.194.78:52402 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Nov 03 15:32:37 2015 151.72.194.78:52402 Data Channel Decrypt: Cipher 'BF-CBC' initialized with 128 bit key
Tue Nov 03 15:32:37 2015 151.72.194.78:52402 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Nov 03 15:32:37 2015 151.72.194.78:52402 Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 1024 bit RSA
Tue Nov 03 15:32:37 2015 151.72.194.78:52402 [michele] Peer Connection Initiated with 151.72.194.78:52402
Tue Nov 03 15:32:37 2015 michele/151.72.194.78:52402 MULTI: Learn: 10.8.0.6 -> michele/151.72.194.78:52402
Tue Nov 03 15:32:37 2015 michele/151.72.194.78:52402 MULTI: primary virtual IP for michele/151.72.194.78:52402: 10.8.0.6
Tue Nov 03 15:32:39 2015 michele/151.72.194.78:52402 PUSH: Received control message: 'PUSH_REQUEST'
Tue Nov 03 15:32:39 2015 michele/151.72.194.78:52402 SENT CONTROL [michele]: 'PUSH_REPLY,route 192.168.1.0 255.255.255.0,route 10.8.0.1,topology net30,ping 10,ping-restart 120,ifconfig 10.8.0.6 10.8.0.5' (status=1)