The tag has no wiki summary.

learn more… | top users | synonyms

0
votes
0answers
25 views

Redirecting traffic through ssh tunnel

I'm trying to redirect the traffic coming from clients to external proxy server. I've the following architecture +----------------------------+ ...
-1
votes
1answer
18 views

how to help 2 devices share local ports behind firewall through a ssh server with ssh reverse tunnel port forwarding [duplicate]

A diagram of the project: It is working under Putty with its GUI configuration, but it is not working if using command line through Putty. how to replicate the GUI settings in putty with command ...
0
votes
0answers
44 views

ssh reverse tunnel port forwarding connection fails

Updated: diagram http://s22.postimg.org/b2jfgawup/diagram_ssh_tunnel_a1.png I am able to do a reverse port forwarding through the PUTTY GUI with settings similar to below. once I apply this setting, ...
0
votes
0answers
9 views

Port forwarding does not work [migrated]

I am connecting to office network through VPN. I have two servers A and B. I have ssh/tomcat access to A through VPN but not to B. When I ssh into A, from there I can ssh into B. Also, B is running ...
0
votes
1answer
27 views

Tunnel http requests to another server?

I have a VPS we'll call it mydomain.com Is it possible when someone goes to mydomain.com, the request is forwarded to another different server, let's say 192.168.0.5 processed by that server and then ...
1
vote
0answers
54 views

HTTP CONNECT request body is reduced to / when proxying through Apache

I am using Apache 2.2.15 as a reverse-proxy running on Scientific Linux 6. It is being used to connect an application to a remote server, where the application being connected to requires that the ...
0
votes
0answers
33 views

Listening “through” GRE Tunnel

Currently I'm looking to learn about using GRE Tunnels and I have the following scheme: Server1 (200.1.2.3) ----> Server2 (190.1.2.3) Both servers have public IPs Then I've setup a GRE Tunnel with ...
0
votes
0answers
190 views

Vpn tunnel to Amazon VPC with pfsense

I'm trying to create an ipsec tunnel between my office and our Amazon VPC. However I have never used ipsec before so I'm at lost. The gateway/firewall is running pfsense 2.1.3-RELEASE (i386) on ...
1
vote
1answer
88 views

4in6 tunnel for heterogeneous systems [closed]

I have clients (OS X 10.9 and Linaro/Ubuntu) in a native IPv6 network and a Server (Debian) in both native IPv4 and IPv6. The Plan is to use the Server as a gateway of sorts, as in 4in6 ...
1
vote
1answer
55 views

Using a reverse tunnel to access a firewall-ed web server serving HTTPS

I have a device ("A) on my network that only serves content via HTTPS, it's not accessible as its behind my router/firewall. I have another machine ("B"), elsewhere on the internet (fake IP of ...
0
votes
0answers
43 views

What are pro and cons of gre and vlanx?

I need to connect two openvswitches in order to make a vlan. So, I would simply create trunk ports for certain vlan ids...ok. In order to connect two openvswitch, now, these ports can be either gre ...
0
votes
0answers
39 views

NO_PROPOSAL_CHOSEN error while connecting

crypto isakmp policy 1 encr 3des authentication pre-share group 2 ! crypto isakmp client configuration group vpn key cse123 pool SDM_POOL_1 acl 100 netmask 255.255.255.0 crypto isakmp ...
1
vote
1answer
218 views

Routing default gateway for 2nd vlan over a tunnel (linux/tinc)

Fixed: It turned out to be a combo of what BatchyX said (missing the 172.16.101.0/24 route on the remote end), and tinc on the remote side failing to run a -up script (the script wasn't executable). ...
3
votes
4answers
100 views

Tunnel over HTTP Server [closed]

As you know, in many countries censorships are prevents us to reach some sites. In Turkey, there will be censorships on Facebook and Youtube. I thought It will be great to pass these censorships ...
1
vote
1answer
115 views

Apache proxy HTTP CONNECT method handshake failure between Apache server and destination server

Apache/2.2.25 (Win32) mod_ssl/2.2.25 OpenSSL/0.9.8y I'm trying to get the HTTP CONNECT method working with Apache. I'm testing it with two different destination servers. It works fine with one ...
-3
votes
1answer
22 views

Create a pptp tunnel through a exisiting domain [closed]

I want to create a tunnel (preferably pptp) via a website that I created I am renting a domain from an ISP with a linux os, is it possible to create it?
0
votes
0answers
74 views

Establish an SSH Tunnel out from behind a firewall

I have a box sat behind a firewall, and when its powered on (or internet connection resumed), I want it to connect to a server, allowing me to do a reverse SSH connection back to it. I'm currently ...
0
votes
1answer
966 views

Transparent Ethernet over GRE not forwarding traffic

I am running on Linux 2.6.30.9 and have been trying to setup a transparent ethernet over GRE tunnel. The network topology used is as follows: I want to bridge PC1 and PC2 using Transparent Ethernet ...
0
votes
1answer
214 views

IP/GRE compiled in kernel but gre0 interface doesnt exist

Im trying to create IP over GRE tunnel but i get No such device: ip tunnel add gre0 mode gre remote 192.168.152.22 local 192.168.152.21 ttl 255 ioctl: No such device I have compiled GRE support in ...
0
votes
1answer
40 views

Can I assign a virtual interface (VPN) to a 'real' interface / NIC of my choice?

I have a small server , running MINT linux with two NICS (eth0 and eth1) and I'd like to setup the MintBox as a VPN client to connect to a web-hosted VPN server. All works wonderfully on the VPN ...
0
votes
2answers
228 views

How to Use The IPs Of Remote Linux server as The Additional IPs of My Current Linux Server?

I have 2 Linux Servers 'X' and 'Y'. Server X has lots of resources but 2 public IPs (1 main IP bound as eth0 and 1 additional IP bound as eth0:0). Server Y has 9 public IPs (1 main IP bound as eth0 ...
1
vote
1answer
90 views

What are my VPN options?

We are changing ISPs and at the last minute the new company is refusing to set up a critical VPN tunnel that we currently have. Data comes into our office via a line into an ISP controlled firewall ...
0
votes
2answers
1k views

Cisco AnyConnect VPN via OpenVPN tunnel [Unable to modify IP forwarding table]

Background: I'm working as a contractor for a small web design agency. We have a particular project / client requires that any updates / development that are performed are done via VPN. The client VPN ...
0
votes
0answers
173 views

Using public interfaces on a server connected through a GRE tunnel

I'm pretty new to networking so please forgive any terminology mistakes. I have 2 servers connected with a GRE tunnel. Server1 (10.0.0.1) ----> Server2 (10.0.0.2) I want to be able to bind to the ...
0
votes
1answer
432 views

GRE keepalive with Linux and RouterOS

I have a Linux host and couple of routerboadrs. I created a GRE tunnel, but Linux does not answer keepalive packages. Then router mark gre connection as unreachable, so I cant send to Linux host from ...
0
votes
2answers
92 views

ssh tunnel setup via a gateway, possible?

local -> gateway ( only ssh port enabled ) -> remote I can ssh to gateway then to remote, no problem. Can I establish a ssh tunnel between local and remote via gataway? I 'd like to access ...
0
votes
1answer
80 views

VPN ipsec tunnel from router to single windows server computer (gateway-to-host)

Firstly, is this possible? I haven't seen any posts that talk about this. The situation: 2 different ISP's. One has several servers and a firewall running. The other is limited to only one virtual ...
0
votes
0answers
104 views

Reverse SSH Tunnel closes after first connection

I am using a reverse SSH tunnel to expose a webserver within my network to the internet. The “inside server” is behind a firewall within a network. The “outside server” is an Ubuntu server with a ...
0
votes
0answers
33 views

Remote listen to port

I have local server exists inside a corporate local network which is running a web-server at port 8080. I would like to make it available to the internet. But it is inside a local subnet with NAT to ...
5
votes
2answers
529 views

How to Configure Secure Connectivity between Multiple Subnets

I have the following setup 2 x linode vps 1 x lab (physical) running 4 vps My goal is to make it so all nodes act as if they are on the same LAN. This will allow me to alter IPTable rules, to allow ...
1
vote
1answer
937 views

Bluecoat proxy: allow HTTPS access to websites while disallowing TCP tunneling (SSH/…)

We have an explicit (= not transparent) proxy setup using a BlueCoat ProxySG (software 6.4.3.1). When I create Web Access Layer rules like: Protocol: HTTPS -> All HTTPS: Allow, Protocol: All TCP ...
0
votes
0answers
46 views

Linux + OpenVPN + SNAT + Failure on client grab the reply to it's own generated traffic

Ok, I'm really desesperate I need to release an openvpn deploy to get rid of a dying server. On the subject: I installed OpenVPN with a routed interface (tun0) into a server with a public IP + 3 ...
0
votes
0answers
24 views

with httptunnel, given port on the remote (server) host is to be forwarded to the given host and port on the local side

Is it possible somehow to use httptunnel to achieve the following, but replacing ssh by http? > ssh -N -R 8080:localhost:1080 mylogin@server.com -R [bind_address:]port:host:hostport Specifies ...
1
vote
0answers
78 views

GRE tunnel not allowing Internet

I'm starting with GRE tunneling and I got two machines connected between them-self: tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet ...
-6
votes
1answer
3k views

How to tunnel TeamViewer so it will bypass a firewall? [closed]

Sometimes TeamViewer is explicitly blocked by a firewall but as a user you are allowed to establish a VPN connection outside or to open tunnels. The questions is what you are supposed to do in order ...
1
vote
0answers
79 views

Connecting to IPv6 hosts when mobile and on a Surface?

Specifically, at my usual location, I have an IPv6 network which connects to the Internet via a static tunnel set up to Hurricane Electric's tunnel broker ( http://www.tunnelbroker.net/ ). This works ...
0
votes
1answer
80 views

Is there any tunneling protocol that can aggregate multiple packets within a packet? [closed]

I think the title says it all. I wonder if this exists. Reasons for wanting this could be to reduce overhead. Update: Related ideas/implementations: The Tor cell which is the transport unit in ...
1
vote
0answers
140 views

GRE Tunneling Routing Issue

I am trying to establish a GRE tunnel on a GW running Linux (V2.6.39.3). The network topology is as following: local: PC_A is connected to a GW PC_A is represented by a dedicated RND (routed ...
0
votes
0answers
44 views

tunnel two windows or linux server with routing packets

I would like to use IPIP eoip tunnel for windows/linux. In addition, It's not necessary to be IPIP, I want to route connection from server 1 to server 2. You can see following flowchart: ...
0
votes
1answer
71 views

how ssh knows to proxy the traffic under tunneling?

client <--> local SOCKS proxy <--> remote VPS (SSH) server I wants to know , when the client sends a HTTP request (www.youtube.com) , and the request reached the VPS server through SOCKS proxy ...
0
votes
1answer
187 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 ...
1
vote
2answers
486 views

Windows Jump Host

A Jump Host is a special purpose computer on a network typically used to manage devices in a separate DMZ. So, I'm looking for the proper way to implement this for a target running on Windows. I was ...
0
votes
1answer
279 views

Forwarding SNMP ports over SSH

I access my work network through a VPN and have access to every host in there through SSH. Currently I need to access around 3000 hosts via SNMP, but corporate sec policies restrict SNMP access ...
0
votes
1answer
487 views

SSH Tunnel can't connect - connection times out, even though regular login works

I am trying to set up an SSH tunnel with a SOCKS proxy in Firefox, so I can surf the internet securely from public wifi. Both client and server are running Ubuntu 12.04 LTS. After setting up port ...
1
vote
2answers
245 views

What is the difference between SSH and SSH Tunneling

As the title says, I don't really understand the difference between them. For example, if I connect to a specific server through SSH without tunneling I get the same shell as I get with tunneling.
2
votes
2answers
2k views

strange output on ssh tunneling: output failed; connect failed: Connection timed out;

I use ssh user@xx.yy.zz.41 -p 1234 -D 9898 command for tunneling, and I set firefox socks5 ip to 127.0.0.1 and its port to 9898. It works successfully ,but in terminal I have error in output: ...
0
votes
1answer
162 views

Route all internet traffic through SSH tunnel

I currently have set up an Amazon EC2 Virtual Private Cloud. Because of IP limitations I can't provide all the instances in the VPC an elastic IP. I have one public facing server and I have a bunch of ...
0
votes
1answer
1k views

why is stunnel doing this

I am trying to setup stunnel to encrypt traffic from rsyslog (using the relp protocol), but whenever I try starting stunnel and sending logs to the remote server, i get the following: Remote ...
2
votes
1answer
386 views

Does a HTTP tunnel solution exist that doesn't use CONNECT, HTTPS or chunked encoding? [closed]

I am looking for a way to get a fast OpenVPN connection out through a restrictive firewall (this is not a workplace and I am not breaking any code of conduct). Currently I'm using port 443 direct to ...
1
vote
1answer
2k views

SSH tunneling with Synology

I try to tunnel SMB and AFP services through SSH to acces my NAS shares on my machine. I already do it successfully with my ReadyNAS using the following command line (ran as my user on my mac) : ssh ...