VPN is the acronym for Virtual Private Network - a network type that uses a the Internet to provide remote networks or single machines with secure access to their organization's network avoiding expensive leased lines.

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Connecting to VPN does not work for all websites

Via a corporate VPN (connected via Ike client) I setup a dynamic ssh tunnel to machinea on localhost:9988, which I can use when connecting via a shared wifi network A to visit any website via a ...
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1answer
26 views

Why I am not able to access my hostname from anywhere but the local server? [on hold]

I created a website on an IIS server with hostname 'www.cftest.local' When I access the website from the IIS server it renders my content as expected. But when I try to access this from my local ...
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6 views

VPN issues switching between OS-X and Windows clients

There's a Windows PPTP VPN server setup for work, and I was connecting to it with various Windows clients (Windows 7 VMs and physical machines) with no issues, and things were working just fine. Then ...
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16 views

VyOS / Vyatta multiple CIDR blocks on one side of IPSec tunnel

I am attempting to link an AWS VPC to a datacenter using the community VyOS AMI and IPSec tunneling, talking to a SonicWall device that I don't control. I've been given the proper settings to ...
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13 views

Optimizing Pfsense IPSec VPN for a high latency environment

I have two PFsense routers connecting two networks with high latency between them. What can I adjust to improve file transfers between these two networks?
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26 views

IPSec bandwidth between two Pfsense hosts has predictable, variable bandwidth

I have a IPSec tunnel between two Pfsense machines. Both machines are connected to a 100mbps symmetrical connection. The latency between the two routers is ~70ms. I'm using AES-GCM-128 and SHA1, both ...
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36 views

Tunnel Server Traffic through VPN but keep SSH Access

I would like to tunnel the traffic on my Server through a VPN. The problem is that when I activate the VPN through openVpn I loose the connection to the server through SSH and have to restart the ...
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11 views

DD-WRT: Remote SSH access doesn't work when OpenVPN client is enabled [migrated]

Problem description I have a DD-WRT router which I would like access remotely via SSH. The DD-WRT is behind an ADSL router which has port forwarding for port 22 enabled, DD-WRT SSH access and service ...
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10 views

strongSwan IKEv2 external authentication

I use Linux IPSec VPN-server based on strongSwan 5.2.1 with eap-mschapv2 authentication using passwords in ipsec.secrets file. Now I need to add one more VPN-server for the same users and I want to ...
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15 views

Configuring OpenSwan for IKEv2 (via iOS8)

I'm trying to configure OpenSwan (running on Ubuntu) to accept connections from an iOS8 device. I receive the following logs, which seems to indicate the server denies IKEv2 connections (even though ...
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11 views

Macs Users aren't able to Change Password via VPN

I have few users who uses Macs laptop at my company, and it came to my attention that they are unable to change their Domain password via VPN. The Macs are running OS X Yosemite, and this only effects ...
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22 views

VPN to Windows Server 2012 on ec2 not routing

I have a Windows Server 2012 instance on EC2 so I can VPN into the private network to access machines not exposed via a public IP. I can connect to the Windows Server VPN by its public IP and ...
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1answer
35 views

What's an inexpensive way to connect 3 sites over VPN, each with dynamic IPs?

I have 3 networks that I would like to connect to each other over VPN (IPSec or OpenVPN). Each site has a single dynamic public IP address and is running NAT. How can I connect each of the sites ...
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21 views

Libreswan not working

i have 2 servers with CentOS and libreswan, the default vpn in red hat distributions. I´m using firewalld too. My vpn start without any erros, i can ping cross subnets, but i cant acess any service, ...
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1answer
34 views

Open VPN troubleshooting

I'm trying to set up a site-to-site VPN connection between 2 of our offices. The VPN servers i'm using are 2 "Edgerouter lite" and the tunneling software i'm using is OpenVPN. This is how the setup ...
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1answer
27 views

Watchguard Mobile VPN with SSL - user can't connect - failed to open shared memory for openvpn command (error: 2)

I have a problem with my Watchguard VPN. I've set up the device for SSLVPN (added policies, users, a group etc.) according to this description from the Watchguard docs. The authentication itself ...
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1answer
20 views

Strange route traces when connecting to L2TP/IPsec VPN

It was tough for me to think of a title for this question, so please bear with me. My laptop running Windows 8.1 Pro connects to my home network using a wireless router/gateway that also provides ...
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44 views

Connect AWS and Azure via OpenVPN

I am trying to connect two networks (AWS and Azure) together via OpenVPN. I am aware of other implementations (OpenSwan+Azure GW etc.) but I need maximal portability as I will be expanding this to ...
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29 views

Ubuntu VPN with ipsec [closed]

I am using Openswan opensource package for VPN remote-site connectivity(ubuntu), I am facing problem with L2tp/ipsec-psk connectivity. Please find below auth.logs Feb 24 19:34:09 ubuntu ...
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19 views

How to know if a bastion or vpn is the right solution? [closed]

How do you choose between using a bastion or VPN when providing access to a vlan? I have seen many different setups, but don't have a good idea on how to make a less subjective selection. Is there a ...
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15 views

Squid3 Reverse Proxy - Force Cache and Suppress Version

I have been using pfSense for about 2 years now and I love it. One of my favorite features has come to be Squid2 and Squid3. Right now I am using Squid3 to run both proxy and reverse proxy. There are ...
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9 views

Poptop configured for freeradius but still authenticates through chap

I'm running Centos 6 64 bit with Poptop and radiusclient. When I connect to my poptop server this error comes up in the error log: Feb 21 14:40:42 alpha pptpd[13225]: CTRL: Client **** control ...
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1answer
22 views

Unable to connect to internet with Azure point to site VPN

I setup azure point-to-site vpn. I chose the location as Western Europe, I also used Google's DNS servers in the setup. I created a certificate, uploaded it and then connected to the VPN from my ...
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6 views

terminate tunnel with Cisco 1905

We have a Cisco 1905 router and I was wondering, if there is an option to terminate an ssh tunnel on it, i.e. that some external host would be able to establish a secure connection through a ssh ...
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1answer
73 views

https and ssh access to OpenVPN from windows

I recently installed OpenVPN on a remote CentOS 7 web server. I am able to connect to it from a local CentOS 7 devbox by typing openvpn --config /path/to/client.ovpn. Once the connection is made, I ...
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37 views

Traffic between vpn clients

Basically I need to connect several computers (A, B, C, D) located in internet to a virtual local network. All of these computers can't accept incoming connections from internet. But they need to ...
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1answer
48 views

OpenVPN: Options error: Unrecognized option or missing parameter(s)

I am trying to assign different ip address ranges to two different types of users of OpenVPN. The two user types are administrators and employees. Towards this end, I created certificates and keys ...
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3answers
66 views

Is it wise to use OpenVPN to connect remote web servers?

I have a number of remote hosted servers for various purposes--web and application servers. I effectively want a "management network" of sorts so I can simplify tasks like log collection and package ...
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1answer
42 views

VSFTP not working over VPN

I've had a FTP service running for some time using vsftp, working with passive mode with no problems. I've recently set up a VPN using openvpn, as far as I know I've configured everything correctly. ...
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6 views

How to route unknown client IPs back down their respective PPTP VPN tunnel?

I have a server that accepts VPN connections using PPTP. I'm testing the setup process for various PPTP clients and i've come across a specific issue with Android clients. Packets arrive from the ...
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2answers
33 views

Restricting access to user groups in OpenVPN

I just used the instructions in this tutorial to install OpenVPN on a CentOS 7 server. I am able to ssh and https into the remote CentOS 7 server through the VPN from a client machine. However, it ...
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95 views

No traffic routing between Cisco CSR1000v and Strongswan IPSec end points on AWS

I am trying to configure a Cisco CSR1000V on AWS to create an IPSec VPN with Strongswan 5.1.2 (on Ubuntu 14.04) on another AWS machine. I can establish the VPN from the Strongswan end and it appears ...
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2answers
31 views

Reaching Local Network which is under NAT with no public IP

I have a place called (lets say) REMOTE. REMOTE is connected to the Internet using 3G/4G Modem + Router. Unfortunately my mobile Internet provider does not give me public IP address. In REMOTE I have ...
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23 views

How to bypass OpenVPN per application

I have a linux machine that routes its whole internet traffic through an openVPN connection. It was explicitly configured to work that way. However, the machine has a few applications that should not ...
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27 views

Tunneling a PPTP VPN connection through a L2TP VPN connection

My company recently moved to a serviced office space : they provide the desks, power and internet. My company has a VPN to connect to the main head quarters that uses PPTP to connect. In the new ...
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49 views

RDP Internal Error over SSL-VPN

I have a Windows 8.1 client that connects over SSL-VPN. The SSL-VPN connects and I can see it on the firewall. You can ping the remote computer (15-60ms with occasional 300+) with an average of ...
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2answers
16 views

Windows 7 + Soniwall NSA3500 Site to site vpn

How can I configure the site-to-site VPN connection using Windows 7 on one side and Sonicwal NSA3500 on another side? I know how to configure the Sonicwall. I've basically done VPN configurations ...
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1answer
41 views

Strongswan to OpenBSD isakmpd IPSec VPN

At my end I have a StrongSwan installation, connecting to an IPSec VPN hosted by an OpenBSD box running stock isakmpd. The OpenBSD box already hosts multiple other associations, but the StrongSwan box ...
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2answers
47 views

Open VPN copying files very slow

This is my first experience with setting up a VPN. I have Open VPN running at my work network on a firewall/router that uses the PFsense admin software. I connected to the VPN from my home network ...
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1answer
39 views

What is “the meaning” of this `ip route`?

I'm slowly learning more about IP routing and the ip toolset by investigating a VPN. After I start a particular VPN client, one of the (new) routes displayed by ip route show is 128.0.0.0/1 via ...
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9 views

DNAT in Shorewall not working for VPN

I have a firewall (10.8.0.1) connected to an internal server (10.8.0.2) via VPN. On the firewall the VPN interface is called tun0. So in my shorewall configuration I have this: $ cat interfaces #ZONE ...
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15 views

ubuntu xl2tp ppp0 not properly handling the DF flag (Packet Corrupt) while sending packages > defined MTU

While trying to setup an Ubuntu Linux server as a client to an l2tp/IPSEC server, I notice inconsistencies while trying to send data. The tunnel/VPN establish the connection / handshake properly and ...
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22 views

Clarification on Tinc VPN Configuration

I've been looking at docs like the tinc manual and Arch's tinc wiki page and am still somewhat mystified as to how to configure my setup. The hosts (all Arch or Debian linux or rooted Android) to be ...
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2answers
32 views

OpenVPN server only gives username/password and client requires certificates

We have a eFive OpenVPN server which gives me a CA cert, usernames and passwords for the account. In addition, I have a RUT550 LTE router, from Teltonika, whose OpenVPN client setting allows static ...
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33 views

Deploying SSTP VPN on Windows 2012 - How to route packets to other servers?

I've finally managed to deploy an SSTP VPN between my Windows 2012 (non R2) server and Windows 7 client. It's amazing how much easier it work with a real certificate and avoiding the self-signed ...
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10 views

amazon aws ec2 setting ppp vpn server POSTROUTING eth3 failed

I use amazon aws ec2 to setting ppp pptpd vpn server. I have two interface is eth0 and eth3. And the iptables -t nat -A POSTROUTING -o eth0 -s 192.168.1.100 -j SNAT --to-source 10.0.0.233 is working ...
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38 views

Change source IP for packet incoming in VPN tunnel

The following configuration allows me to change the source IP from 192.168.0.0/24 to 172.16.0.100 when hosts going to 10.0.0.100 and it works. But I can't achieve this goal for the hosts incoming from ...
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11 views

VPN connected machines don't keep ports open

I have a Windows 2012r2 machine set up as a VPN server with 5 clients connecting (4 via PPTP and 1 via L2TP). I am using icinga2 to monitor these remote machines and am able to successfully do so ...
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1answer
70 views

Joining two networks over internet with same ip range

We have two offices in a single Windows 2003 domain and sharing same IP range (no overlapping). Every office has its Microtik router as gateway. Thing is, first office has a solid wired internet ...
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0answers
9 views

How can I inform Mac OS and iOS clients of VPN routes? [migrated]

On my home network (10.0.0.0/24) I have my Macs and iOS devices (the others don't matter). LAN clients gain IPv4 and IPv6 (native) access via an Airport Extreme (AEBS) connected to a cable modem on ...