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0
votes
0answers
65 views

Site-to-site VPN between Azure Virtual Network and a Cisco RV016

I'm attempting to configure a Cisco RV016 router to connect to an Azure Virtual Network to create a site-to-site VPN, but it's not working. I'm aware that a Cisco RV016 is not in the list of ...
0
votes
0answers
13 views

Tcp tunnel with Citrix receiver

I have a citrix xen vdi host in work LAN. I can connect to this vdi host from my home with citrix receiver. Is it possible to create tcp tunnel to access other services in the work LAN over citrix ...
0
votes
0answers
25 views

How can I add encryption to a GRE tunnel?

I'm using a GRE tunnel on a few Ubuntu servers to join multiple AWS regions in separate VPCs into one internal network to reduce the number of IPs I need, as well as network complexity. Right now, my ...
0
votes
0answers
20 views

How to troubleshoot GRE tunnel issues?

I commonly run into issues where a GRE tunnel (CentOS server to server, not router based) works and pings fine from both ends but the IP / Range being tunneled does not function. This almost always ...
0
votes
1answer
48 views

VPN laptop as proxy gateway for Intranet computers truss bridge/bypass

I have a Windows 7 Enterprise VPN laptop to access my client's VPN network. During VPN session the laptop can not accept any request from my Intranet even if I open any door using Windows Firewall ...
0
votes
0answers
59 views

Forward all incoming traffic from a specific IP to local port (in use by ssh proxy connection)

So what I'm trying to do is have tcp/udp incoming traffic from source IP 192.168.1.100 be routed to localhost:12345. localhost:12345 is used in an ssh socks proxy to my server with Internet access. ...
1
vote
1answer
58 views

Managing multiple servers behind a firewall with SSH reverse tunnel

I have 10 Ubuntu servers in different locations, behind a firewall each (local_server_1 to 10). All those servers are authorized to SSH into my public server (lets call it master) using ssh keys (in ...
0
votes
0answers
40 views

connecting an ip on the remote machine via layer 2 to local machine

Ok, so this is part two of my main question: So I have an ssh -w ethernet tunnel established. previous question run-setup: source ./HOST scp -i green.pem server/* root@$HOST: ssh -i green.pem ...
0
votes
1answer
117 views

tunneling layer 2 ssh

Ok, I'm trying to break my previous question down into parts: This is my reference: https://help.ubuntu.com/community/SSH_VPN tunneling ubuntu -> debian 1. ssh -i green.pem root@$HOST echo 1 | ...
0
votes
1answer
150 views

Cannot run OpenVPN on port 53 (DNS Stops Working)

So I'm trying to get OpenVPN to work on port 53 - sadly this isn't working. I used IP tables to map port 53 to port 1194 (standard OpenVPN port) Here's what I run to do this: iptables -t nat -A ...
2
votes
1answer
143 views

Redirect SSH traffic through GRE tunnel

I'm trying to redirect all local connections with destination matchs port 22 to specified tunnel using iptables MARK, but, something is going wrong. 1.1.1.1 my public address 2.2.2.2 tunnel public ...
2
votes
2answers
269 views

Set up a 6in4 tunnel server

I'd like to set up an IPv6-in-IPv4 SIT tunnel server. I've combed through the Ubuntu IPv6 wiki page but everything is geared towards connecting to a tunnel as a client, rather than hosting one. I'd ...
0
votes
1answer
114 views

ssh tunnel and rdesktop in one line

To access a windows machine remotely I have to tunnel through a ubuntu server of mine. To setup the tunnel I have ssh -l root -C -L 9999:windowsmachine:23389 myserver Then I have to open another ...
1
vote
0answers
176 views

Using TomatoUSB and OpenVPN to tunnel IPv6 traffic

Assume the following scenario regarding the current IPv4/OpenVPN setup: Central Site with a /64 IPv6 (10.0.0.1) | | OpenVPN Server A OpenVPN Server B ...
0
votes
0answers
29 views

SVN and tunneling

My machine svn1 sits inside a firewall on my network and hosts my svn server, I have a gateway machine gateway1 that allows me to ssh into my network from outside. When outside the network ...
0
votes
1answer
328 views

How to force certain traffic through GRE tunnel?

Here's what I do. Server (public internet is 222.x.x.x): echo 'net.ipv4.ip_forward=1' >> /etc/sysctl.conf sysctl -p iptunnel add gre1 mode gre local 222.x.x.x remote 115.x.x.x ttl 255 ...
1
vote
1answer
296 views

Routing all data through an VPN tunnel with ppp

I'm trying to create a VPN tunnel that forwards all data from the local machine to the VPN server. I'm using ppp-2.4.5 for this with the following configuration: pty "pptp <VPNServer> ...
0
votes
0answers
64 views

How well supported is reverse ssh tunelling - wireless modems?

Does anyone know if GPRS cell modem providers univerally allow reverse SSH tunnels to be established? I'm looking for a solution to reliably allow SSH connections to systems on wireless modems that ...
0
votes
4answers
156 views

Tunnel between windows through linux server for sql server, possible?

One in a while I need to check some data in a MS SQL Server in another location. As for now this requires making database backup, moving it to another server so I can download the .bak file and ...
7
votes
1answer
1k views

ssh tunnel - bind: Cannot assign requested address

Trying to create a socks (-D) ssh tunnel - Linux box to Linux box (both centos): sshd running on remote side ok. From local machine we do / see this: ssh -D 1080 user@8.8.8.8. user@8.8.8.8's ...
2
votes
3answers
190 views

Use server's IP via SSH tunnel

Firslty my setup is an Ubuntu laptop and an Ubuntu server. I have a program on my local laptop which needs to access a certain web-service, (lets call it http://someserver.com/someservice123). Now ...
4
votes
2answers
553 views

Replace DNS on Openvpn client without redirect-gateway

I am trying to push DNS to the client with OpenVPN server with config: push "dhcp-option DNS 192.168.x.x" It is working well, but what I really need is that during the VPN connection I do not ...
0
votes
1answer
136 views

Operation not permitted on ping6 after mip6d establishes MIPv6 tunnel

I'm very much out of ideas here: I run mobile IPv6 on Ubuntu oneiric, with a simple fixed-address setup. mip6d establishes a tunnel, but as soon as the tunnel establishes I lose all network ...
1
vote
2answers
878 views

Tunneling a public IP to a remote machine

I have a Linux server A with a block of 5 public IP addresses, 8.8.8.122/29. Currently, 8.8.8.122 is assigned to eth0, and 8.8.8.123 is assigned to eth0:1. I have another Linux machine B in a remote ...
0
votes
1answer
266 views

SSH tunnel doesn't work

I am trying to use my server as a "proxy" with ssh. However, setting up tunneling with ssh -D localhost:8000 user@myserver does not work. I tested this on various machines with ssh and putty - It ...
2
votes
1answer
366 views

Tunnel only one program (UDP & TCP) through another server

I have a windows machine at home and a server with debian installed. I want to tunnel the UDP traffic from one (any only this) program on my windows machine through my server. For tcp traffic this ...
0
votes
1answer
182 views

Which software could I use to setup a 4in6 IP tunnel (RFC 2473) on GNU/Linux

Here is my problem. I have a server A that has two IP addresses. One public IPv4 and one IPv6. Server B has only one IPv6 address. I want to host most of my services on server B (because I have more ...
0
votes
1answer
421 views

openvpn tunnel- tunnel is up but issues with routing

I am having trouble with a site to site tunnel. Both routers are centos based routers. Router A is the server, and router B is the client. The VPN tunnel is established. From router B, I can ping ...
1
vote
1answer
168 views

Difference between site-to-site and client-to-site configuration on openVPN server

I am trying to setup a site to site VPN tunnel using openVPN. The server currently is setup to accept client to site connections. When configuring a site to site tunnel (as opposed to the client to ...
1
vote
1answer
275 views

How do I know if an openVPN tunnel is established?

How do you know if a Site to site VPN tunnel is established in OpenVPN? Apart from pinging the other side, is there a command or something that shows the status of the tunnel? I am using centos on ...
0
votes
0answers
113 views

Hamachi Type Hardware VPN solution? (VPN through third-party) [closed]

I'm looking for a hardware type solution that works like hamachi where all you would need to do is put this device on a network(on which the internet is accessible) and it will connect/broker a vpn ...
2
votes
0answers
116 views

Dynamic VPN tunneling technologies

Ok, so I'm asking a more specific question this time. I'm writing a paper about Cisco's DMVPN and one of the tasks I have is to make the analysis of available network solutions which use dynamic VPN ...
1
vote
1answer
53 views

Dynamic tunneling technologies [closed]

Are there any other technologies like Cisco DMVPN that use dynamic tunneling in layer 3 networks?
2
votes
1answer
187 views

Tunnel apt traffic from private network through public to the internet

I've got 4 Servers under the following config: Servers 1 and 3(Web Server, Mail server respectivelly): NIC1: Public Network, Connected to the Internet NIC2: Private Network, Communication between ...
2
votes
0answers
177 views

Forward IP packets to tunnel device

I have created an tunnel device using ip tuntap add dev tun0 mode tun user 0 group 0 I then assign it an ip address 192.168.0.1/22 ifconfig tun0 192.168.0.1 netmask 255.255.252.0 On my ...
1
vote
0answers
100 views

Configure subversion to start SSH tunnel automatically for HTTP-only SVN server

We have an SVN server accessible with HTTP (and only HTTP) running on a firewalled port on our development system: dev $ svn checkout http://localhost:1234/proj/trunk On my workstation, I created a ...
1
vote
1answer
704 views

How do i route TCP connections via TOR?

I was reading about torchat which is essentially an anonymous chat program. It sounded cool so i wanted to experiment with making my own. First i wrote a test to grab a webpage using Http. Sicne .NET ...
1
vote
2answers
569 views

Connection refused in ssh tunnel to apache forward proxy setup

I am trying to setup a private forward proxy in a small server. I mean to use it during a conference to tunnel my internet access through an ssh tunnel to the proxy server. So I created a virtual ...
2
votes
1answer
626 views

Correct options for keeping open a reverse SSH-tunnel using autossh

I have a set-up with a LDAP-sever (ldapserver) behind a strict firewall, and a webapplication running on a sever (appserver) outside that firewall that needs to authenticate using that LDAP-sever. I ...
0
votes
1answer
136 views

Access internet through a tunnel

I have created a VPN tunnel between by system and my server. My server is whitelisted with another server. So while in development phase I want the request originating from my system to go to the ...
0
votes
1answer
488 views

Configuring ipv6 over radvd using sixxs, routing not working

So this morning, I have been trying to configure IPv6 upon my network using the guide I found on reddit (of all places) at http://ipv6friday.org/blog/2012/06/ipv6-enabling-training/. Now at first ...
3
votes
1answer
311 views

selective routing through a VPN tunnel

The problem: after establishing an IPsec VPN tunnel all traffic is routed to the remote endpoint, while I only need to route the packets destined to that internal network and still be able to access ...
1
vote
1answer
538 views

stunnel version 4.53 says SSL server needs a certificate on Windows 7

I have been using stunnel previous versions just fine. It didn't apparently have the feature of a certificate in SSL server mode. That's alright but not necessary for us as we're simply running a ...
0
votes
2answers
65 views

Encrypted off-site data storage

My business has a rather unique problem. We work in China and we want to implement a file server paradigm which does not store any files locally, but rather in a server overseas. Applications would be ...
0
votes
2answers
62 views

Secure every connection between endpoints

Sometimes one has to work with software that hasn't built in security-features for non-local connections. In fact, some client-libraries are sending credentials in clear text over the wire. On the ...
1
vote
0answers
306 views

why ping6 fails if tcpdump shows ICMP6 request/reply traffic?

I'm having a very strange problem with IPv6 pings on OpenWRT (fon-ng firmware with IPv6 enabled) and hoping someone can help with investigation. In short - wpan0 interface with address aaaa::1/64 is ...
0
votes
1answer
550 views

VoIP Tunnel Implementation for SIP Client

I am planning to provide an option for tunneling in my SIP client. I have tried to search on web for open-source implementation of this, but couldn't find one. My questions are: 1) If I go writing ...
1
vote
1answer
189 views

SSH Tunneling for Munin

I had at home an NAS and in the datacenter a Server. I make an SSH Tunnel with the following command: autossh -fN -M20404 -R 1337:localhost:22 user@server (from the nas to the server) Its working ...
0
votes
1answer
296 views

What does HTTP traffic tunnelled through SSH look like to a network administrator? [closed]

When I am at work we have very tight firewalls, as a way to get around them and perhaps even gain some increased anonymity myself and many of my co-workers have set up SSH tunnels to our own hosted ...