Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [tunnel]

226 questions
1
vote
1 answer

Using two openvpn clients to expose services of a server

I am currently attempting to use two openvpn clients to expose services of a server, as is already said in the title. I may be playing with powers far beyond my current comprehension, but please bear with me :-) Outline This is my current setup: …
Danny Nophut
  • 13
  • 3
1
vote
1 answer

How can I create routes between two separate LANs on the internet over an OpenVPN tunnel?

Diagram I have separate router/OpenVPN appliances at two different sites. The appliances are actually TP Link routers running OpenWRT 12.09, r36088. I would like clients behind these two routers to be able to connect to one another. One router is…
stevesdj
  • 23
  • 6
1
vote
1 answer

Routing internet traffic through a site-to-site IPsec tunnel

We are trying to replicate what is described at https://doc.pfsense.org/index.php/Routing_internet_traffic_through_a_site-to-site_IPsec_tunnel#Set_up_the_IPsec_tunnel_Phase_2 We are using 2 Fortinet Fortigate firewalls. We previously had a…
techfutures
  • 31
  • 1
  • 4
1
vote
1 answer

WCCP and Squid, and Tunnels

I'm trying to configure WCCP + Squid with the following documentation: http://www.crypt.gen.nz/papers/cisco_squid_wccp.html I have a cisco switch, a test client, and a squid proxy server. I think the switch is configured correctly, as I'm seeing…
blindsnowmobile
  • 377
  • 1
  • 5
  • 16
1
vote
0 answers

IPSec tunnel not working when set up asynchronously

I'm trying to create a tunnel using StrongSwan. In order to do this, I'm creating two sh files, one for each gateway router. All I'm doing in the sh files is creating the tunnel, configuring it, and calling "ipsec restart." I then execute each file…
exxodus7
  • 95
  • 1
  • 8
1
vote
1 answer

Fail safe SSH tunnel Ubuntu (always up)

I need your advise for a very important technical issue on our project. We need to have a SSH tunnel always up between our two servers. We have a MySQL database replication process going between those two servers. We want two things: When the…
Alex J.
  • 13
  • 4
1
vote
1 answer

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 turns out to be some routing issue at the tunnel…
linux911
  • 99
  • 1
  • 8
1
vote
1 answer

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 Inbound Rules. However, during VPN session the…
StelArian
  • 13
  • 6
1
vote
1 answer

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 other words, their ssh keys are in master's…
Udi
  • 13
  • 1
  • 5
1
vote
1 answer

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 | tee /proc/sys/net/ipv4/ip_forward echo "PermitTunnel…
iamacomputer
  • 161
  • 1
  • 9
1
vote
1 answer

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 console and run rdesktop -u user -password -f…
jdog
  • 121
  • 7
  • 29
1
vote
0 answers

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 (10.0.0.0/16) (10.10.0.0/16) …
mback2k
  • 111
  • 3
1
vote
1 answer

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 --nolaunchpppd" name remotename…
Oliver
  • 13
  • 1
  • 4
1
vote
4 answers

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 recover on my local machine. But the database is…
cichy
  • 113
  • 5
1
vote
1 answer

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 disk space on it, I can control it better) but I…
Mildred
  • 825
  • 2
  • 10
  • 16
1 2 3
…
15 16