Cum se poate realiza un VPN folosind tunel ssh
In general VPN permite accesul securizat (criptat si cu parola) din internet in reteaua locala. Sau poate unii doua retele locale prin intermediul retelei publice de internet, cu criptarea transferului prin reteaua publica.
Incepand cu versiunea 4.3 de ssh acesta include optiunea de a crea “Virtual Private Networks” via interfata tun. Un bun tutorial este aici:
https://help.ubuntu.com/community/SSH_VPN
+---------------+ OpenSSH 4.3 +---------------+
| Machine A | tun0 -- Tunnel Interface -- tun0 | Machine B |
| Has a tunnel | <------------------------------->| Has a tunnel |
| and ethernet | 10.0.0.100 10.0.0.200 | and ethernet |
+-------+-------+ point to point connection +-------+-------+
eth0 | creates a bridge | eth0
10.0.0.100 | that plugs machine B | 192.168.0.100
port 22 | into network A |
forwarded | |
here | |
+-------+-------+ +-~-~-~-~-~-~-~-+ +-------+-------+
| Network A | | | | Network B |
| 10.0.0.1/24 | 1.2.3.4 | The Internet | | 192.168.0.1/24|
| Has internet |<-------->| |<----->| Has internet |
| NAT gateway | Routable | | | NAT gateway |
+---------------+ Address +-~-~-~-~-~-~-~-+ +---------------+
[mai mult...]
