VPN via PPP and SSH - What Ports?

From: /dev/scott0 (outsideworld_at_scottbrown.us)
Date: 12/28/04


Date: Tue, 28 Dec 2004 00:30:56 -0800

Hello,
  I would like to try a VPN from our main network to my house. The main
network has a WWW server on it with a public IP, however, the ports
availble to the outside world are limited. Basically, I've looked at
using PPP over SSH for a Network to Network link. That said, and before
I invest all my time into this project: is the only port needed open on
the server 22?

  Below is a small map for the 'visual' folk out there (like me):

  Thanks in advanced,
  Scott

    +--------------+eth0 +--------------+
    | Slackware 10 | eth0| Coyote Linux |ppp`-.dialup Internet)
    | Client |---------| Firewall | `-.
    +--------------+ +--------------+ `-.
                                                         `-.,---.
                                                           / \
                                                         __ WAN )
    +--------------+ _____......------''''' \ /
    |SuSE 9.2 |eth0 ----'''''' `---'
    |Server |
    +--------------+
     PUBLIC IP
     Open Ports:
                80 WWW
                22 SSH
                21 FTP
             10000 WEBMIN



Relevant Pages

  • Re: [Full-disclosure] Remote Desktop Command Fixation Attacks
    ... This set of steps is redundant in many places, and it's also enormously expensive, since you're using no less than three different expensive bits of networking hardware (AP, PIX, VPN Concentrator), in addition to a bunch of x86 server hardware, windows server licenses, and at least one ISA license. ... Your computers necessarily don't have full access to your network infrastructure when they aren't logged on, so GPOs, software updates, etc can't be applied at the times you want them to be applied. ... Turning on, enabling, and implementing every possible security setting and device you think of is not defence in depth, and will probably only have two effects - your users won't use your wireless network, and you'll burn so much cash you won't have any left to spend on *useful* security measures. ...
    (Full-Disclosure)
  • Re: VPN with SBS 2003 (not R2) and DSL.
    ... Reading property value for VPN returned OK ... Reading VPN Server Name returned OK ... identical network cards. ... it seems doubtful that SBS will work properly with two NICs ...
    (microsoft.public.windows.server.sbs)
  • RE: VPN Connection Problems
    ... Note that we are able to successfully VPN into the office. ... to browse the network, RDP to the server or even ping the server. ... > This newsgroup only focuses on SBS technical issues. ...
    (microsoft.public.windows.server.sbs)
  • Re: VPN clients unable to connect to other resources.
    ... on the SBS 2003 server just not sure where to go for help on it. ... Next time I'm at my home PC, I'll VPN in and see what IP info I'm getting ... client PC on your LAN, you should be able to do so from a remote VPN client, ... get the network path was not found. ...
    (microsoft.public.windows.server.sbs)
  • Re: RRAS as VPN Server Configuration Questions...
    ... Ethernet adapter VPN: ... Name resulotion on VPN Connection issues on DC, ISA, DNS and WINS server as ... Issue in a VPN client ... ... How to Setup Windows, Network, VPN & Remote Access on ...
    (microsoft.public.win2000.ras_routing)