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Wiki page [port-forwarding] by sandro 2018-07-15 07:03:03.

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Back to the <b>VirtualPG</b> <a href="https://www.gaia-gis.it/fossil/virtualpg/tutorial">tutorial</a>
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<h3>Connecting to a remote PostgreSQL server: Port Forwarding / SSH Tunneling</h3>
The well known <b>SSH</b> (<i><b>S</b>ecure <b>SH</b>ell</i>) <a href"https://en.wikipedia.org/wiki/Secure_Shell">protocol</a> is very frequently adopted by system administrators for establishing safe connections to remote servers.<br>
SSH automatically encrypts all the traffic between the local PC and the remote server by using strong cryptograhic ciphers, thus allowing for very secure connections over the intrinsically insecure Internet.<br><br>
You can use SSH also for establishing safe connections to remote PostgreSQL servers, but this requires to activate some special SSH feature known as <a href="https://en.wikipedia.org/wiki/Port_forwarding">port forwarding</a> aka <a href="https://en.wikipedia.org/wiki/Tunneling_protocol">SSH tunneling</a>. 
<h3>Basic concepts</h3>
<img src="https://www.gaia-gis.it/gaia-sins/port-forwarding-ssh-tunnel/Ssh-port-forwarding.png" alt="port-forwarding"><br><br>
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Back to the <b>VirtualPG</b> <a href="https://www.gaia-gis.it/fossil/virtualpg/tutorial">tutorial</a>
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