Virtual Private Network

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Is there any P2P VPN solution that does not requiere port opening(forwarding)?

The closest to a VPN P2P-based solution that I have found is PeerVPN, but it needs to open one port (7000 TCP by default) on each computer that runs it. I would like to prepare some linux devices ...
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12 views

Replacing AWS VPC Default VPN with OpenSwan (with HA)

Unfortunately AWS doest support IPSec Ikev2, DH group higher than 2 and AES256. So we are switching to OpenSwan. I was able to setup OpenSwan on a NAT instance on a VPC's public subnet with EIP and it ...
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1answer
17 views

Forwarding traffics come from SSH tunnel to VPN tunnel on a Linux device

I want to route network traffic that comes from one end of ssh tunnel (constructed by ssh dynamic port-forwarding) into one end of VPN tunnel. Given four linux devices A, B, C and D, for example, I ...
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1answer
18 views

Strongswan forwarding traffic between two IPsec tunnels

Given a remote (centralized) VPN server with a StrongSwan IKEv2 setup with external static IP: centralized server internal IP 192.168.1.65, network 192.168.1.64/27 And two gateways doing NAT for ...
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20 views

VPN: Script at /etc/ppp/ip-up.d/ not autoexecuting on PPTP connection established

My PPTP client is Ubuntu Desktop 14.04.2LTS. My PPTP Server is a Buffalo DD-WRT Firmware. If I establish my PPTP VPN connection (named Themiscyra): luis@PortatilHP:~$ sudo pon Themiscyra ...
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1answer
45 views

SSH from different countries with openvpn configured on pfsense and dd-wrt?

I have vpn set up in two different countries A (primary, where I live) and B (secondary, which I visit once or twice a year) and would like to SSH to my devices across the vpn. My Setup: Country ...
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1answer
29 views

OpenVPN client config :: why is needed ca.crt?

I configured a VPN (OpenVPN, mode: multiclients-1server), CentOS Server, multiple Rasp's clients. CA.crt is needed by each client, in addition of the client.crt & client.key . I wonder... why ? ...
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14 views

Issues with getting a tun0 connection to route any and all connections from eth0 to be made to this interface and if not working drop

So I've been having this issue for a while and the internet has been mixed for a response. Sadly most configurations for setting up a VPN seem to assume you are running both a vpn client and server ...
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34 views

How do I persistently set the MTU for a PPTP VPN connection in Ubuntu?

I have a M$-based VPN connection that I connect to every so often. After connecting to the VPN server, I need to run sudo ifconfig ppp0 mtu 1200, So that I can log on to the server, or else ssh client ...
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1answer
20 views

Using a VPN for certain applications via a network namespace

I am trying to use a network namespace for VPN-specific traffic, using this guide: https://schnouki.net/posts/2014/12/12/openvpn-for-a-single-application-on-linux/ on Debian. Everything works with ...
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38 views

Why is my laptop being blocked from connecting to a PPTP VPN server?

I have a fairly simple network at home Internet --> Modem --> Linux Router --> Switch --> Laptop The problem: There is a PPTP VPN server at work that I need to connect to from home. I configured my ...
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18 views

OpenVPN Network to Network issues

I'm having some trouble getting OpenVPN working (as a tunnel between networks). I've gone through the following steps INITIAL SETUP 01. Installed openvpn and easy-rsa with yum 02. copied the example ...
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88 views

Problem Creating a tun interfcae with SoftEther VPN Client on CentOS

I'm trying to make a VPN connection using SoftEther VPN Client on CentOS 7. When I try to create a new NIC, I get this error: VPN Client>NicCreate NicCreate command - Create New Virtual Network ...
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34 views

“VPN connection failed” when ufw is on even if there are no rules in ufw interface

Ubuntu 14.04 After update related with ufw and switching nvidia drivers back and forth, suddenly, I can't establish VPN connection to internet. I've deleted all rules and reseted profile in ufw ui but ...
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1answer
63 views

Please help me to understand these tun0 addresses

I have already done some searching and more or less understand what a tun0 interface does. I got the following from various sources, Packets sent by an operating system via a tun/tap device are ...
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40 views

Configuring tun0 and tun1 IPSEC interfaces

I'm trying to make two IPSEC tunnel interfaces in order to make a bonding but i don't know how to start it since i can't find any tutorial showing something similar. Can anybody gives me an indication ...
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2answers
168 views

Kali Linux openVPN does not pass the DNS Leak test

I recently installed Kali Linux on VMWare. I was able to successfully install openVPN following these instructions, but it seems that it does not pass the DNS Leak test. Is there anything that can fix ...
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50 views

It is possible to make an IPSEC VPN Bonding?

I wanted to know if It is possible to bound two IPSEC tunnels ? I've already done a VPN bonding of SSH tunnels, but It will be better if I use IPSEC.
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37 views

IPsec, PepVPN, SpeedFusion Hot Failover and SpeedFusion Bonding (PepLink Load balancer)

I was looking for the difference between IPsec, PepVPN, SpeedFusion Hot Failover and SpeedFusion Bonding (PepLink Load balancer) but i can't find something well explained. I'll be glad if someone can ...
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173 views

Port forwarding with iptables and PIA VPN for single user

I've gotten a Private Internet Access VPN setup on a Mythbuntu 14.04 machine and I am at wits end trying to get port forwarding working with rTorrent (and ruTorrent). My setup is rTorrent running ...
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1answer
92 views

Openvpn stops responding

I've been trying to set up openvpn with a vps and raspberry pi. The raspi is natted while the vps is public. I've tried connecting to the openvpn from mint laptop as well, but it's no use: Server ...
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41 views

How to route vpn traffic over hostapd-raspberry pi

I have a raspberry pi running hostapd and I am able to connect my laptop as a wifi client to the raspberry bi wifi router. The problem is with the vpn traffic, I cant connect to my office vpn with ...
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18 views

Why does my PPTP connection work if I DMZ the server behind the router, but it does work if I use port forwarding?

Why does my PPTP connection work if I DMZ the server behind the router, but it does not work if I use port forwarding for the wide area network? Is there another port I need to open/port forward ...
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1answer
87 views

VPS: How to forward traffic to devices from public IP

My goal is to set up a public IP for a Android Smartphone which is running an "IP Cam" software - the interface can be accessed in local network on (example) 192.168.0.2:8080 - But it has no public IP ...
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31 views

Connecting VPNC

I have installed VPNC and Network-Manager-VPNC in Ubuntu x64 and entered the configuration information like Group name, Username under VPN tab and DNS server, Search domains under IPv4 settings. I ...
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1answer
77 views

How do I tunnel traffic through a VPN and then through another machine

I recently started working from home using a laptop (A) that connects to a corporate network over a VPN. The VPN end point (B) on the corporate side then has two ports, 3389 for RDP and 22 for ssh, ...
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29 views

VPN and Privoxy together

NOTE: I'm just starting to learn this stuff. I've installed Privoxy, and a VPN, and I'm trying to use them together. I tried setting listen-address to the ip and port my VPN provides, the one I ...
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196 views

Make docker containers accessible via vpn

I have three physical machine A, B, C, each of them has docker installed. I want to install openvpn server on machine A, and install openvpn client on B and C. B and C will connect to A. I want to ...
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1answer
121 views

Automate Connection to VPN

I'm hoping to automate the startup of a VPN connection on startup of a CentOS 6.5 box. I have a Fortinet VPN client that I run on the command line as follows: [centhost]$./forticlientsslvpn_cli ...
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59 views

Try to make a vpn tunnel between pi2 raspbian and AWS EC2

I want to make a VPN connect between my raspberrypi 3.18.7-v7+ in my home, which is behind a wireless router, to the AWS ubuntu server. 1 2 vpn connection 3 4 Pi2 ...
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36 views

Linux as a router

I'm wondering whether this would be possible with linux and how ... I've got a normal DSL connection and 3 VPNs - I'd like a Linux computer to connect to all connections (maybe through a DSL Router or ...
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34 views

All packets after the first one on tun0 are dropped

I'm trying to run the Aventail VPN 10.7.1.449, and it doesn't work since every packet after the first one is getting dropped: tun0 Link encap:UNSPEC HWaddr ...
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48 views

Which iptables rule causes vpn not to connect?

I can't connect to VPN until flushing iptables with iptables -F. pppd fails to connect with error message LCP: timeout sending Config-Requests. Which rule is causing this error? The result of ...
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2answers
135 views

Cannot access internet through OpenVPN

I have set up an openvpn server, generated a certificate and downloaded it to my client machine. After importing the client.ovpn file in the network manager, I can still ssh into the server itself, ...
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1answer
518 views

OpenVPN CLI for killswitch or connection fallback prevention

I'm using OpenVPN via command line to connect to my VPN on my current Linux distro since there is no GUI available (which had a killswitch checkbox). My problem is, I can't find any way to add a ...
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1answer
43 views

Transparent proxying of TCP connections on port (mostly, without root access)

I have the Client machine living somewhere on the Internet, and it needs to access a custom port of Target machine (or, initially any port on any reachable machine, but, eventually, particular port, ...
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1answer
64 views

Config iptables ssh over VPN

How can I define a rule that only allows ssh via VPN in iptables? My iptable Rule is following: #!/bin/sh IPT="/sbin/iptables" $IPT --flush $IPT --delete-chain $IPT -P INPUT DROP $IPT -P FORWARD DROP ...
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1answer
455 views

iptables allow only ssh and vpn traffic

I have dedicated server with ubuntu 14.10 installed. The server should connect to an openvpn server and the traffic should only go through the vpn, except for SSH traffic. My idea is to realize it ...
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1answer
416 views

CentOS 7 - Cannot start OpenVPN Access Server

I have been trying to install the OpenVPN Access Server on my CentOS 7 VPS. However, I have been running into a number of problems. Initially, I had followed this DigitalOcean guide, but after I had ...
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1answer
184 views

Routing ALL traffic through VPS

I recently acquired a Raspberry Pi and I'm setting it up for various things. I have a local router that the Pi is wired into along with my desktop computer. I want to be able to access the Pi from ...
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1answer
345 views

firewalld settings for OpenVPN with https, ssh, and smtp

I am configuring a remote CentOS 7 webapp server to wrap https and ssh inside OpenVPN, while keeping smtp running outside of OpenVPN. I notice that, when I establish an OpenVPN connection from a ...
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0answers
11 views

Why my xl2tpd doesn't redial?

I have a router that runs debian and is used to connect to my ISP using L2TP (over a cable modem). xl2tpd is configured to redial if the connection fails (and pppd is configured to do a LCP ping all ...
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0answers
130 views

Routing traffic for specific user to specific interface

I have a Linux box with these interfaces: eth0 Link encap:Ethernet HWaddr 14:da:e9:ef:75:7d inet addr:176.9.85.182 Bcast:176.9.85.191 Mask:255.255.255.224 tun0 Link encap:UNSPEC ...
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1answer
300 views

Initialization Sequence Completed, but terminal wont give a prompt

I just installed openvpn on a remote CentOS 7 server using the instructions in this tutorial. The only change I made to the tutorial was to use @GarethTheRed's instructions for configuring ...
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1answer
76 views

Disconnect vpn from Linux server

I have pptpd for PPTP and openswan for L2TP installed on a Ubuntu server, which work without any problem. When a client connects to the server, a new connection is created shown as pppx in the ...
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1answer
336 views

Can you set OpenVPN to auto-connect to 'fallback' .ovpns in case the current one fails?

I'm in Debian 7.8 Wheezy, and have installed openvpn from the stable repository. I'd like to set up a system for another user (who does not have high computer literacy) where, if the primary server ...
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0answers
302 views

vpn l2tp connection on ubuntu 14.10

I am using Ubuntu 14.10 and I need to create a VPN L2TP connection. I installed strongswan, as suggested by this answer, but now I don't understand how to configure the connection. The connection ...
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0answers
32 views

Routing problem through 2 hop in the LAN

This is the scenario I'm facing with: firewall (Zyxel Zywall USG210) configured as default gateway, with LAN IP 172.29.0.1 /16 2nd firewall, directly connected with the 1st, with LAN IP 172.29.0.250 ...
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1answer
158 views

Route everything through VPN except SSH on Port 22

I have a Server and I want to setup a VPN on it to route all traffic. Of course I dont want to block myself out when establishing the OpenVPN connection (already did that..) so I want the Port 22 to ...
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26 views

routing through a GVPE network

The following is a GVPE network (VPN) setup on Debian Linux systems. It is how I interpreted the two paragraphs starting at line 174 in the GVPE README. Sadly, there is not much detail and my ...