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2
votes
6answers
842 views

Access internal server from Internet without modifying firewall?

I have a server on an internal network that publishes web pages. I need access to these web pages from random clients on the Internet. The problem is that I don't have control of the firewall this ...
30
votes
5answers
24k views

What are the exact protocol level differences between SSL and TLS?

This is a technical deep dive after this overview question was asked. What are the protocol differences between SSL and TLS? Is there really enough of a difference to warrant a name change? (versus ...
2
votes
2answers
606 views

VPN connection over SSH

I'm behind a firewall which only allow ports 80 and 443 out. I have an Ubuntu server at home which got an SSH server running on 443 and it works fine. Therefore I can tunnel my traffic behind this ...
1
vote
2answers
2k views

SSH over SSH Tunnel

I have seen this question: http://serverfault.com/questions/33283/how-to-setup-ssh-tunnel-to-forward-ssh but I'm having difficulties because of OS barriers. I have someone sitting on an XP laptop ...
0
votes
3answers
1k views

Firewalls that block RDP over port 443

I need people to reach my servers over SSH and RDP. Both ports are blocked outbound at many companies, especially the large ones. However, I also suspect that in 90% of companies there is nothing to ...
0
votes
2answers
361 views

Debian: Tunnel incoming connections (SSH)

Hey! Is it possible to use a SSH connection to tunnel incoming traffic to server1 to server2, so server1 acts like a proxy? Or is there a better way to do it? Cross-server connection should be ...
0
votes
1answer
329 views

Can't remove tunnel created by Cygwin

I need to make a tunnel from Linux to my Windows 7 machine. I have been able to get it to work with Cygwin, but it's not possible to remove the tunnel later. To create the tunnel, I type: ssh -f -N ...
0
votes
1answer
161 views

How to tunneling RDP access and SSL access

I need to RDP to a terminal windows server 2003 OS and then RDP from there to my destination remote host. Same thing to SSL, first SSH to a CentOS via putty, then SSH to my destination remote CentOS ...
0
votes
2answers
3k views

Access remote server with Nautilus through double SSH tunnel

I'm trying to access my work computer from home. We are supposed to SSH into a server, say ssh.company.com and from there ssh into an xhost to to work, say xhost04.company.com. xhost04 is not ...
4
votes
1answer
3k views

Cisco ASA and static IPv6 tunnel endpoint?

I recently installed a Cisco ASA 5505 firewall on the edge of our LAN. The setup is simple: Internet <--> ASA <--> LAN I would like provide the hosts in the LAN with IPv6 connectivity by ...
0
votes
5answers
1k views

Can SSH be tunneled over HTTPS using thttpd?

I need to tunnel my SSH server through an HTTPS port using thttpd (I can change to lighttpd if necessary, but I'm trying to avoid installing Apache since it's an underpowered box). I haven't been able ...
3
votes
2answers
3k views

reverse ssh tunnel listens on wrong interface

I'm working with a server that is behind a firewall. I have established an ssh tunnel to an intermediate server in the internet like this: remoteuser@behind_fw$ ssh -N -f -R 10002:localhost:22 ...
0
votes
2answers
270 views

How to remap IPs visible from local machine to IPs visible from a machine I have SSH access to?

I'm so far out of my depth I don't even know what to google for. There's a server I can connect to via SSH. Via that server I can access other server on its subnet via SSH. What I want to do is be ...
0
votes
1answer
631 views

Symantec Gateway Security 320 VPN/Port Forwarding trouble

How do I check to see if port forward is enabled with one of my dynamic tunnels on this device? I'm having trouble using a feature in our software that requires a vpn to be used. My firewalls shows it ...
2
votes
1answer
5k views

Linux Teamviewer functionality, but for ssh only

I need to access some Linux server behind NAT (no ports forwarded), so I need to have something like "phone home" like Teamviewer has. There is no GUI, but somebody can log in through SSH and dictate ...
2
votes
4answers
655 views

How to browse to a webserver which is reachable through the SSH port only

I have a server at work which is behind a firewall (the company's firewall) so it is reachable only thrugh port 22 (SSH). I'm able to connect to the server with putty without problems. Also, that ...
2
votes
2answers
3k views

Unknown protocol when trying to connect to remote host with stunnel

I'm trying to set up a stunnel for WebDav on Windows. I want to connect 80 port on my local interface to 443 on another machine in my network. I can ping the machine remote machine. However when I use ...
3
votes
2answers
626 views

Exposing a WebServer behind a firewall without Port Forwarding

We are deploying web applications in java using tomcat on client machines across the country. Once they are installed, we want to allow a remote access to these web applications through a central ...
1
vote
2answers
2k views

Is there an encrypted udp based tunnel that doesn't need a tun/tap device?

I am looking for a "application tunneling" solution that behaves a similar to an ssl or ssh tunnel but over UDP. One the client end, OpenVPN provides an network interface. I want the client end to ...
1
vote
4answers
846 views

Inexpensive and Open replacement for Cisco Tunnel-based EasyVPN with Cisco VPN 3000 Series

I have a scenario where i have to establish peer-to-peer preshared key based VPN to a vendor. This vendor uses Cisco EasyVPN with Cisco VPN 3000 as access concentrator. I check the compatibility of ...
0
votes
1answer
425 views

how to connect public web server to internal LAN

I have a VPS which is my public web server for all my clients. It's running server 2008 and I would like to have it connect via secure connection to my internal LAN. I would like this to be a route ...
0
votes
1answer
578 views

Tunneling traffic through two VPN hops/tunnels

I am a web developer, and I find myself often working from home. But when I do, I am forced to Remote Desktop to the Office desktop computer and work from there. The reason is because the ...
0
votes
2answers
199 views

Set up a “relay” service

I'm trying to create a 'left client' > server < 'right client' setup but need some advice and tips. Let's say that I have a server-daemon on the left side, like a vnc-server that connects to the ...
0
votes
2answers
3k views

Possible to IPSec VPN Tunnel Public IP Addresses?

A customer uses an IBM SAS product over the internet. Traffic flows from the IBM hosting data center to the customer network through Juniper VPN appliances. IBM says they're not tunneling private IP ...
2
votes
2answers
2k views

How can I set up squid to act as a tunneling proxy to expose a VPN or SSH tunnel?

I'd like to set up a tunneling proxy accessible by URL--so, to access bar.com through the tunneling proxy, you'd go to foo.com/bar.com and continue to browse bar.com transparently from there. I can ...
1
vote
2answers
3k views

Route specific HTTP requests through pfSense OpenVPN

to start, I have very little knowledge on routes, iptables, etc. That said, here's what I'm trying to accomplish and where I think I'm stumped: Problem: We have an external website which we recently ...
2
votes
4answers
8k views

How to setup an IPSec / GRE tunnel on Windows Server 2008

I have a Windows Server 2008 that has a single network interface configured with a public IP address. My business partner has a private network. From my server, I need to access all the devices on his ...
2
votes
2answers
618 views

I have an SSH proxy working, now I need to select a different outgoing IP for my client

I have a SSH tunnel set up to my dedicated server via Putty which I am using as a socks proxy. The problem is I need to use a different outgoing IP address than the main IP of the dedicated server. I ...
2
votes
8answers
5k views

Encrypted Host-to-Host Tunnel on Ubuntu/Debian?

I'd like to connect two remote sites via a secure point to point tunnel. I've been using OpenVPN, but it's a little flakey and really seems to be more for connecting lots of users rather than a point ...
1
vote
1answer
170 views

My sysadmin is on vacation, Help!

I wanted to trouble shoot a certain issue on the server, but I could not connect my debugger since the person who maintains the firewall is off on a vacation. I dont want to mess with his settings. He ...
0
votes
2answers
308 views

How could I send HTTP traffic from a computer only accesible via Remote Desktop?

I'm developing a Web Service Client. The Web Service is an special Government service only accessible from an internal network. Currently, I'm working connected to a remote computer in this internal ...
3
votes
5answers
2k views

Use Windows/Mac MySQL GUI over SSH Tunnel

I am working on a client's website and he has hosting through 1and1. They don't allow connecting directly to their mySQL server from anywhere. I can't for instance load up a mySQL GUI on windows and ...
0
votes
2answers
995 views

Public IP Routing over Private GRE tunnel

I have a GRE tunnel configured between two linux boxes. The tunnel works fine. I can ping from each host the other private ip. Head privateip: 10.0.0.1 publicip: 8.8.8.8 Tail privateip: 10.0.0.2 ...
2
votes
3answers
2k views

Squid traffic tunneled through VPN

So what I'm trying to do is have a Squid Proxy run on 1 machine along side a VPN connection. What I want to happen is all traffic running though the Squad Proxy would run though the VPN for its ...
2
votes
3answers
2k views

SSH socks proxy tunnel without interactive session?

I use ssh -D 1080 myhost.org ...to open up an SSH tunnel from my work machine to my home machine, so as to bypass the idiotic content filter on the corporate firewall. However this also creates an ...
3
votes
2answers
861 views

SSH remote port forwarding

I want to connect to my computer(local) behind NAT through public accessible server(public). On local: ssh -g -R 8000:localhost:22 user@public Then on public: ssh -p 8000 user@public But I am ...
1
vote
2answers
304 views

Security concerns of having IPv6 (tunneling) enabled in network computers

Are there any security concerns having IPv6 and Teredo tunneling enabled in Win Vista/7? AFAIK, using Teredo basically allows bypassing of the firewall, as the firewall cannot really filter the ...
1
vote
1answer
707 views

GRE and IPSec Tunnel on the same interface

i have one route cisco 2800 series with a GRE+IPSec vpn tunnel configured. I need to create a new tunnel, but now this is a IPSec tunnel. What i want to know is that is possible to configure different ...
1
vote
1answer
1k views

Why are my reverse SSH tunnels suddenly dying?

I have had persistent tunnels from all my client computers to my servers in place for about a year now. I've not updated my server or changed any configuration files--as far as I remember--for several ...
3
votes
3answers
379 views

Best non-native IPv6 connectivity (in Europe)

What is the best (most stable, fastest, easy to setup) way to get IPv6 connectivity and addressspace in Europe? And, why? I'm running a small hosting outfit from a rented server in Germany and would ...
3
votes
2answers
1k views

setup ssh server and http server both on port 80

I have a web daemon (listening on port 80 and 443) and a ssh daemon (listening on port 22) on the same machine. I have a client (generating HTTP,HTTPS,SSH traffic) seating behind a proxy server (port ...
1
vote
1answer
633 views

GRE tunnel between a Cisco router and a snapgear firewall

Has anyone here ever setup a GRE tunnel between a snapgear firewall and Cisco Router? The Snapgear manual implies that it can be done, but doesn't give any examples. What is confusing me is that a ...
1
vote
3answers
1k views

telnet port forwarding

Anyone knows if it is possible to setup port forwarding with a telnet client, like it is with SSH?
4
votes
5answers
2k views

SSH remote access vpn tunnel

I have two machines both running CentOS linux, one is public facing machine with a real ip address (foo). The other is at a client's site behind a very restrictive firewall and with no real ip and no ...
0
votes
3answers
1k views

Lightweight reverse tunnel

I have been told that reverse tunnels can be created using SSH or I can solve the problem the big way and create a VPN. Both these methods are heavy-weight. For the SSH tunneling I need an SSH server ...
0
votes
4answers
213 views

Generic reverse tunnel

I am searching for a generic reverse tunnel application. Here is what I have in mind: It would consist of an inside (behind nat) and outside part. The "inside" part would try to establish a connection ...
3
votes
4answers
344 views

What software should I use for IP tunneling

I have two ethernet networks which are connected by a router (think it is cisco). Trafic from the two networks must not be mixed. Except from one virtual server (Win2003 based on HyperV) on one LAN ...
5
votes
3answers
2k views

Tunnel an ssh connection through an intermediate machine in a single command

Is there a way, in a single command, to establish a ssh connection from my computer A, through computer B, to computer C, such that I have access to the shell on computer C? A wrinkle (which seems to ...
5
votes
2answers
2k views

Differences between SSH's tunnels and OpenVPN

I discovered that recent OpenSSH has support for tun devices. When it comes to tunnels and VPNs, I always thought the main programme was OpenVPN. Are there any advantages to using SSH tunnels? What ...
1
vote
1answer
589 views

Creating a VPN Tunnel between website and the server

The machine which is connected in server LAN has the IP Camera Connected. From server the IP camera video feed can be viewable. I would like to view this IP camera from anywhere on the world through ...