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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What can possibly prevent tcpdump from showing request packets?

I am trying to debug a little SOAP issue. I am using a java web app to consume an API over a VPN. ping and telnet on the webservice server are fine.The Environment is aws ec2 for my app. I have no ...
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9 views

Ipsec right side multiple ip's and phases lifetimes

This is my setup for ipsec: conn outside_company authby=secret ike=aes256-sha1;dh2 phase2=esp phase2alg=aes256-sha1;dh2 pfs=yes keyingtries=3 ikelifetime=24h ...
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1answer
10 views

server 2012 vpn not passing traffic

Having some major problems with Server 2012 Essentials. Have setup remote access and installed RRAS console. I can connect to the VPN through SSTP or PPTP no problems. Authentication is fine (NAP is ...
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1answer
29 views

Cisco 2901 - IPSec VPN Maxing CPU

We have a Cisco 2901 on the edge of a 100Mbps/100Mbps WAN link which is providing an endpoint for an IPSec VPN to a Juniper SSG 550M. The problem is that we are seeing a max of 'only' 40Mbps over the ...
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1answer
11 views

Why OpenVPN create keys with '-nodes' option?

I was reading about the parameters that OpenVPN build-key script uses to generate a private client's key (with OpenSSL) and I noted the parameter "-nodes". According to documentation, this parameter ...
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1answer
10 views

openconnect on startup at debian wheezy through ssh [on hold]

I am trying to connect to Cisco vpn using open connect. I can do it with the terminal where it asks for my user and pass. However, is there any method for automating this on login.
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35 views

Name resolution not working over VPN on public IP

I have a server running Hyper V with several VMs. I have configured two virtual switches: external switch (which is connected to interface connected to the internet) internal switch (which is ...
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1answer
25 views

DNS server not responding in vpn connection win 8.1 [on hold]

I use win 8.1 and my campus has an intranet network and a vpn(PPTP). to connect to internet, first I have to connect to the intranet(wireless network) and then connect to vpn. But the problem is when ...
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1answer
23 views

Bridge PPTP VPN with local network

I have configured on my Ubuntu a VPN server using PPTPD. I can connect to it from outside of my LAN, I can use it's internet connection. But I cannot see my LAN clients (because the VPN and the LAN ...
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12 views

Share local area connection with multiple TAPs

I'm setting up an VPN server. In this server I want to have 2 different encryptions (1024, 2048), each one in different ports. So I created 2 TAP adapters, and shared the local area connection with ...
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27 views

FreeBSD L2TP VPN connection error

I have a L2TP/IPsec VPN server on FreeBSD 10 set as this article. Everything works fine except clients cannot receive packets from outside. Here is the tcpdump result when a connected client tries to ...
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2answers
45 views

How to connect two building 5km apart from eachother?

I have to design a network and give an estimate of the cost of all the equipment. Now I have 3 building 100m apart which I'll connect with Fiber without a problem. Two of those though are connected ...
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1answer
27 views

How to check the packets is actually coming thru the VPN Tunnel

I have setup up a VPN server with strongswan. My VPN is coming up, but I want to make sure packets are actually going through the tunnel. Are there some commands to check this on the VPN ...
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14 views

tun0 not listening traffic on a simple vpn example

I tried to setup a simple vpn test server on Ubuntu 12.04, called ToyVPNServer. The guide is simple and I take test for days but still cannot get connected. The inspection result is showing the issue ...
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1answer
32 views

How does a proxy server handle non-http traffic?

I have an application that makes an un-secure connection over a non-http port to a server daemon. We use this tool internally. There might be occasion for some of our users to work outside our ...
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24 views

How can I set up DirectAccess so that I only need a single physical server?

In a bid to minimise hardware complexity and overall cost for the small network I look after, I'd like to know how best to get DirectAccess up and running as simply as possible. We currently have a ...
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17 views

Windows PPTP VPN - Slow File Transfer

I currently have a PPTP VPN configured between my SBS 2011 box on site and a Server 2008 R2 box in a datacentre. Line speed in the office is 20Mb leased line with 1:1 contention and obviously the ...
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189 views

Under what circumstances is TCP-over-TCP performing significantly worse than TCP alone (2014)?

Many admins keep perpetuating - on ServerFault and elsewhere - how bad of an idea TCP-over-TCP is, e.g. in VPNs. That even the slightest packet loss will make one suffer from at least severe ...
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34 views

PowerDNS Reverse lookup is not responding in VPN connected network

I created a test network. It is a star VPN network with: - 1 main router - 2 subrouters (DrayTek Vigor 2920) - behind each router a client - behind the main router a PowerDNS machine now the ...
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1answer
27 views

Cannot view folders on client with VPN to 2008 server

Recently installed server 2008 as part of our upgrade from 2003 and managed to resolve most problems but left with the last one which is that I cannot view folders or files on 2008 server from client ...
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5answers
75 views

What software can I use to create a private network between Windows Server 2012 boxes regardless of physical location?

I have several Windows Server 2012 dedicated servers with static ip addresses. I am wondering if it's possible to create a secure private network for these machines using software only. The machines ...
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14 views

How to set up an VPN Server which directs a connected users browser requests to one specific domain to another IP address?

I'm about to create a testing environment for my clients, which have to access certain web addresses. What I want to achieve is the following: - A client connects to the VPN server - He opens a ...
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13 views

L2TP Client Routing

I've setup a VPN Terminator in our DMZ using Windows 2012 R2. It is multi-homed with 2 interfaces: 1 to the DMZ for incoming connections from VPN clients, 1 to our LAN for the tunnelled traffic from ...
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32 views

Configuring SoftEther on VM with two virtual ethernet card

I am very novice in networking and I just have basic knowledge. I have scenario that I'd like implement. I have a VMWare Windows 7 VM with two network interfaces. One shares the host's network using ...
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23 views

Site to site active directory for hyperv replication

We have two dedicated servers across two different sites. They host hyper v virtual machines for email hosting etc. I'd like to have hyper v do replication between them and so I have a copy elsewhere, ...
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1answer
16 views

Configuring VOIP server without SIP

So I want to create a VOIP server with that I can connect with OpenVPN so I can call only a number of people that are in my network. I'll be using CSIPSIMPLE for that purpose. I'll be using only ...
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1answer
33 views

Draytek SSL VPN connection incorrect subnet mask and gateway

I have remote machine connecting to our office lan through a draytek 2930 router in our office with a fixed IP (FW3.3.0). I have set it up to use SSL VPN with Draytek smartvpn client software on the ...
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2answers
209 views

How to correctly configure DNS usage in Ubuntu? Authoritative answers without RA flag are ignored

I have latest clean Ubuntu 14.04.1 64-bit from official website installed in Virtualbox. I connect to a VPN network using vpnc that sets 2 DNS servers using DHCP: user@virtual:~$ cat /etc/resolv.conf ...
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1answer
37 views

Windows 8.1 VPN error 800 when connecting to Mikrotik VPN router

After creating a new VPN connection on a Windows 8.1 machine, to a VPN server (using Mikrotik router), the connection times out and an error no 800 is displayed.
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25 views

Printer on OS X not printing across VPN subnets

I have an interesting situation where I have a two servers that connect two subnets via a VPN. One side is 192.168.0.0/24 and the other is 192.168.1.0/24. Communications appear to be working okay. I ...
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1answer
22 views

Can OpenVPN routes be stored in a database?

I'm trying to develop a simple custom intranet web-based tool to manage OpenVPN routes so that they can be added and removed without having to edit the config file. Is there any way to make OpenVPN ...
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47 views

ubuntu 12.04 vps server pptp setup not working, openvz host has ppp/pptp enabled

I'm trying to setup a vpn between two servers with pptpd on one server and the client running on the other. I am using ubuntu 12.04 on both server vps's. I had the one vps provider enable all the ...
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9 views

OpenVPN and adding .p12 cert

Is there a way to add the .p12 type of cert to the openvpn config file? I've read and learned how to add the other files like so: <ca> -----BEGIN CERTIFICATE----- # insert base64 blob from ...
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1answer
40 views

TightVNC over VPN encrypted? [closed]

I'm using tightvnc to connect to my servers over a IPSEC VPN connection with split tunneling enabled. Is my communication with my servers via VNC encrypted or unencrypted?
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36 views

Cisco 887 router as an IKEv2 VPN server?

A follow up to this question. The scenario is exactly the same, but I replaced my 877 router with a 887VA running IOS 15.4. The VPN server configuration works exactly like before, and I can ...
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1answer
39 views

Route all traffic through VPN

So I have one VPS (based on openvz) with VPN (openvpn) up and running. I'm connecting to this setup with laptop (archlinux) and everything seems to be working. Let's say that vps's ip is 192.0.2.4. I ...
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1answer
25 views

How to use a VPN Client inside Azure VM and Keep Remote Desktop Connection available?

I have a virtual network in Azure using point-to-site connection. I connect to it using Azure VPN normally and access my VMs through remote desktop normally as well. The problem is, I want to run a ...
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1answer
25 views

VPN from home to office to AWS

I have a remote access VPN set up so developers can access our internal network. I also have an IPSec VPN setup so the personnel that are physically at the office can access the AWS servers. What I ...
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1answer
44 views

OpenVPN Access Server connects and can browse all other ports than port HTTP and HTTPS

Hello dear Serverfault experts, I have a very frustrating issue with my recently installed OpenVPN Access Server ...
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1answer
28 views

How to have a Open VZ VPS running a PPTP VPN, run without having PUTTY open?

I just set up a VPN on my VPS server. It works great, except that once I close PUTTY, the VPN is shut down. I tried to use screen, but I don't know how to get that working with the VPN. What can I do ...
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2answers
50 views

How can I manage remote site printers?

Please bear with me, my server and networking knowledge is not amazing. The company that I work for has a central 'Head Office'. This is where our server room is located. We have a bunch of Windows ...
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7 views

Openswan not updating the routing table

I have problems to find solution about this. I have Openswan and ASA configure IPSec VPN tunnel and the connections is established and working but with some little problems. The topology is looking ...
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1answer
56 views

openconnect VPN works in KDE NetworkManager widget but not on command line

I need to connect to a Cisco VPN on Linux and at first I did this using the KDE NetworkManager plasma widget thingy. That worked fine and I'm able to connect to the VPN if I choose it from the Network ...
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16 views

Secondary floating IP on TUN/TAP interface

I'm currently working on a HA Cluster implemented using Corosync 2 and Pacemaker and I've run into a network limitation beyond my control that prevents me from implementing floating virtual IPs. Now ...
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1answer
12 views

configure juniper SSL VPN on seperate server for users

we have some client servers in USA and users in our LAN connect these servers using juniper SSL vpn client provided by the client. Now the issue is, numbers of users are increasing here and its been ...
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1answer
36 views

Is it Possible to VPN onto the entire local network through Windows 2012 R2?

I currently have a windows 7 client set up to VPN into a Windows 2012 R2 server but it has it own ip network addresses between the client/server. eg. the Server has internal network ip of 192.168.1.11 ...
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5 views

SSTP vpn 50% slower than without vpn [migrated]

I've a W7 Pro computer at home, on which I have set up a sstp vpn gateway. The internet connection of this computer is 300Mbps/50Mbps (tested on Speedtest.net) Now, I am currently not at home (but ...
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1answer
78 views

Can't Access Network Drives through VPN

My issue is that when I'm outside the office I can't access any of my network drives. I can't UNC to them, through the FQDN or IP address. For example, domain.local\folder, or 172.26.6.2\d$. ...
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1answer
41 views

How do I write a SRV record for PPTP? [closed]

Hosting a PPTP VPN server on a subdomain, how do I enable the service on the domain with a SRV DNS record? I've already tried: _pptp._tcp.domain.top. 86400 IN SRV 10 10 1723 sub.domain.top. though ...
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1answer
84 views

Is it possible to configure a reverse VPN tunnel?

Basically, my goal is to have a 100% portable and independent server. I'm building it using a Raspberry Pi powered by solar panels and batteries, and it is to be connected to the internet using a 4g ...