Ok, I'll explain what I did... and at the end is the queston. THank you!
To set up my VPN I installed OpenVPN in server and client machines. On server I configured the cert Authority in the file /etc/openvpn/easy-rsa/vars editing this lines:
export KEY_COUNTRY=”ES”
export KEY_PROVINCE=”M”
export KEY_CITY=”Madrid”
export KEY_ORG=”My Organization”
export KEY_EMAIL=”mail@example.com”
then i generated the cert:
cd /etc/openvpn/easy-rsa/ ln -s openssl-1.0.0.cnf openssl.cnf source vars ./clean-all ./build-ca
Created the cerver certs:
./build-key-server myServer
Diffie Hellman parameters to server
./build-dh
Copyed certs and keys /etc/openvpn
cd keys/ cp myServer.crt myServer.key ca.crt dh1024.pem /etc/openvpn/
Created client Certs
cd /etc/openvpn/easy-rsa/ source vars ./build-key client1
Copied this certs to client machine and erased them from server:
/etc/openvpn/ca.crt
/etc/openvpn/easy-rsa/keys/cliente.crt
/etc/openvpn/easy-rsa/keys/cliente.key
Edited /etc/openvpn/server.conf to my files names
ca ca.crt
cert myServer.crt
key myServer.key
dh dh1024.pem
/etc/init.d/openvpn restart
Verified that tun0 is there
ifconfig tun0
Enabled ip_forward parameter on /etc/sysctl.conf so packages may flow
net.ipv4.ip_forward=1
Also enabled virtual network masking so client may access all remote machines
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE
and saved the ip tables conf so they dont desappear in a reboot
Grabamos la configuración en un fichero
sudo sh -c “iptables-save > /etc/iptables.rules”
Edit /etc/network/interfaces adding the interface (eth0 in this case)
pre-up iptables-restore < /etc/iptables.rules
In the client i installed OpenVPN and edited the client.conf file which is in /etc/openvpn with the certs: ca.cert, client1.key, client1.conf getting the following client.conf file:
client
dev tun
proto udp
remote xxx.xxx.xxx.xxx 1194
resolv-retry infinite
nobind
persist-key
persist-tun
ca ca.crt
cert client1.crt
key client1.key
ns-cert-type server
comp-lzo
verb 3
then restarted:
/etc/init.d/openvpn restart
And when i want to verify that the interface tun0 is there with ifconfig tun0, there is not.
So I checked my log for errors, in the client machine and there is this error:
VERIFY ERROR: depth=0, error=unable to get local issuer certificate: /C=Es/ST=M/L=Madrid/O=xxx/OU=xxx/CN=myServer/name=xxx/emailAddress=mail@xxxx.co
TLS_ERROR: BIO read tls_read_plaintext error: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
user openvpn[7984]: TLS Error: TLS object -> incoming plaintext read error
user openvpn[7984]: TLS Error: TLS handshake failed
I've created the keys again, and added the full path of the certs in the client.conf file but it still doesn't work. Also tryed with all my firewalls disabled and still cant conect to my server because of that error.
Another important thing is that my server is an ubuntu 12.04 and client CentOS 6.3
I can see that i find my server but still the connection isn't completed...
What should I do??
If any more config files are needed, tell me to show you
