[NBLUG/talk] SSH tunnels

[Omar Eljumaily]

OK, figured it out.

/etc/ssh/sshd_config

GatewayPorts yes

If there's interest I can talk about this subject for probably about 15 
or 20 minutes at a meeting.  It's not that complex once everything's 
figured out.

Thanks,

Omar

On 5/9/2015 10:30 AM, Omar Eljumaily wrote:
> So I'm still dealing with the issue of connecting to monitoring 
> devices behind firewalls.  Static IPs will work when they're 
> available.  However, some cases will require an SSH tunnel.  PPTP and 
> IPSec will work in some cases, but I can't guarantee that the device 
> hosting network will have a subnet that is compatible with the VPN 
> host's network.  I.E. for instance they both use 192.168.1.x for their 
> subnets.
>
> I'm trying to reach an http server behind a firewall from 
> myseverxxx.com port 3001.  This is the command I use on the http 
> server machine:
>
> ssh -f -R 3001:localhost:80 myserverxxx.com -p 123 -N
>
> But it doesn't work.  I use port 123 because I don't like to use 
> default ports for ssh.  I don't get any error messages, nor do any 
> error messages appear in my logs.  I've opened up port 3001 in my 
> firewall on myserverxxx.com.  Is there anything obvious that I'm doing 
> wrong?
>
> There was a suggestion that ssh tunnels be a meeting topic.  I can 
> talk about them, and what I'm using them for if I can get them to 
> work, if there's interest.
>
> Thanks,
>
> Omar
>
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