There's a program called stunnel that does exactly what you're looking
for.

On Tue, 2003-11-11 at 11:41, -ray wrote:
> All,
> 
> I'm looking to do sort of a reverse SSL proxy/VPN.  We have some HVAC 
> devices on campus that speak HTTP to monitor/control A/C systems.  The SSL 
> add-on for these devices is extremely expensive... almost $10k.  I'd like 
> to setup a proxy/redirector on a private VLAN with the device, so it's 
> setup like this:
> 
> client --HTTPS--> proxy --HTTP/VLAN--> device
> 
> Suggestions?  Don't wany any setup on the client, which rules out ssh
> tunneling or a "real" VPN.  I'm thinking LVS, or Squid.  Or maybe there's
> an Apache module to do this.  Anyone do this before?
> 
> ray

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