Point-To-Point Tunnelling Protocol is a networking protocol which exposes a layer 2 tunnel. It uses a TCP connection for control communications, and a GRE tunnel for the actual data. It is typically used to create VPNs.

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Network remapping with iptables and PPTP VPN

I have two different networks: Home network 192.168.1.0/24 A - Home PC (192.168.1.100) B - Home Router (192.168.1.1 lan ip - x.x.x.x public ip) Office network 192.168.1.0/24 C - File Server ...
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Cannot connect VPN Server On Ubuntu Server 12.04 Using PPTP

I am trying to replace the old gateway server (running Fedora core 5) in my lab with a new one (running Ubuntu server 12.04). Three basic functions need to install: NAT, DHCP and VPN. And I got stuck ...
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23 views

Connection errors with pptp vpn GRE and LCP errors

I am trying to setup a pptp link to my server just to get things out the way up top I know it's not that secure but for my purposes it works quite well. Bellow is the log I have when I try to connect ...
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100 views

VPN error 619 - “A connection to the remote computer could not be established.”

Have been trying to get this PPTP VPN working on a CentOS 6 x64 VPS for a few days but im getting: "Error 619 - A connection to the remote computer could not be established." I did research on ...
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28 views

Accessing Server Remotely Without Forwarding Ports?

I'm setting up a Debian web server in my school that people need to be able to access outside of the school (i.e. website needs to be accessible from outside the local network). The problem is, they ...
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27 views

Incorrect IP for PPTP client on Rackspace VM

I'm using pptp-linux to connect to a (Windows) VPN. I can connect and authenticate just fine, however I can't ping any hosts on the remote LAN other than the VPN server. I think this is because my VM ...
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85 views

mikrotik : vpn pptp authentication with any username

I want To use Mikrotik To Accept pptp connection with any username/password and maybe just with source IP address? How Can I do That?
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64 views

Multiple VPN connections on the same Computer at the same Time with the same Subnets

What's the best approach for such scenario? : One machine „GATEWAY” SERVER with configured multiple VPN connections. PC1, PC2, PC3, PC4 are the clients that with the same time wants to connect to ...
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33 views

enable user to connect to external pptp VPN server

I want to enable local user to connect to remote VPN server I added those rules to the iptables but still not able to connect -A OUTPUT -p gre -j ACCEPT -A OUTPUT -p tcp -m tcp --dport 1723 -j ACCEPT ...
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55 views

Load-balancing PPTP connections

I'm trying to load balance two PPTP connections, connected to the same server. I use the following script, but there is no send and receive via PPTP connections. What part am I doing wrong? Are there ...
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43 views

Error with a vpn client (PPTP protocole) over ssh

I have some errors when I use PPTP over ssh : sudo ssh -L 1723:127.0.0.1:1723 vpn-server@$192.168.1.1 192.168.1.1 is the vpn server ip. When I start pppd (client) whith the following command : ...
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458 views

PPTP defaultroute. Want to route all traffic via ppp interface

I'm experiencing a problem described here: http://pptpclient.sourceforge.net/howto-diagnosis.phtml#lots_of_data. If I use defaultroute in peer conf or manually add route add default dev ppp0 ...
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19 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?
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32 views

Is secure pptp not possible on Ubuntu?

From [1], it was said that 1) All users and providers of PPTP VPN solutions should immediately start migrating to a different VPN protocol. PPTP traffic should be considered ...
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86 views

Fortigate VPN can't reach site

I've two Fortigate's here and I use one of them for each site. Site A Site B 192.168.2.0/24 <---------- VPN ...
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70 views

RRAS behind Ubiquity EdgeMAX drops PPTP tunnel

I have a Server 2008 R2 machine behind an Ubiquiti EdgeMAX router. The router has been configured as a NAT, and all GRE traffic along with the TCP control port (1723) has been forwarded to the ...
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35 views

Open ports for VPN users

I have been looking around for some time for answer to this, and have yet to find one. The issue that I am having is that users that are connected to the VPN cannot do the following, as examples: ...
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72 views

PPTP VPN - No internet access though the VPN

I am very new to the world of windows server I'm renting a VM in the USA for my web hosting(DC, DNS and Web host role) and I decided that I would install a VPN on it so I could re-route me ...
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71 views

Vyatta Remote Access VPN firewall (PPTP)

I am using Vyatta Remote Access VPN (PPTP) and NAT for proxy. When pc-A and pc-B are connected to VPN, pc-A ipaddress is 192.168.10.10 and pc-B is 192.168.10.11. ...
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470 views

How do you troubleshoot a PPTP+VPN+RDP freeze-up?

The symptoms are: I am at home. I am trying to dial a PPTP VPN. It connects fine. Pinging from command line in windows shows about a 30% ping success rate when the PPTP vpn is up, 100% ping success ...
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2answers
89 views

How to make httpd accessible only through the VPN?

I have a server running PPTP that is supposed to run an httpd (nginx) accessible only through the VPN. I'm also running a few other httpds too, which are not supposed to work on the VPN. routing ...
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29 views

How to make httpd accessible only through the VPN?

I have a server running PPTP that is supposed to run an httpd (nginx) accessible only through the VPN. I'm also running a few other httpds too, which are not supposed to work on the VPN. routing ...
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55 views

Windows XP VPN server with Ubuntu client

I'm trying to setup VPN connection to Windows XP server with a static public IP address from my Ubuntu machine. VPN used is standart windows built-in PPTP. I have got problem when connecting. Here is ...
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71 views

Unable to connect networkshares through VPN (RRAS server only)

I have a Windows Server 2008 SP2 with these Roles installed: File server Network Policy and Access Server / Routing and Remote Access Network Policy and Access Server / NPS The VPN connection is ...
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28 views

VPN connected but no access to anything

I have a problem with the VPN server on 2008R2. I can successfully connect to the VPN server but i cannot map any drives either by IP or by name. I can ping hosts by ip but not the name. In addition I ...
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54 views

VPN client to client port forwarding

I have an EC2 Amazon instance running a vpn server with 192.168.240.1-9 ip range. I can connect my Macbook to this VPN (using system pref.) and a Raspberry Pi, using this command line: sudo ...
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159 views

PPTP disconnects when peers disconnect

Just setup a Ubuntu 13.10 on a server, and configured PPTP VPN. Everything works just fine, until another peer disconnects his VPN connection. I was able to consistently simulate this by connecting ...
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184 views

Allow RDP only over VPN

I want to do allow 3389 port(RDP) only through VPN connection, not normally. How can I do this? I have configured VPN server in Mikrotik. I have blocked all traffic except http and https by firewall ...
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45 views

VPN/PPTP connection dialog doesn't list my certificate to choose

I'm trying to configure VPN connection with PPTP and authentication using SSL Certificate. Client is running Windows 7, RRAS/NPS is running Windows Server 2008 R2, Cert Authority is running Windows ...
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64 views

Examples of running VPN clients in Amazon EC2

There are a thousand examples of VPN server setups on EC2 - but what are the limitations for running VPN clients on ec2? (to an existing VPN concentrator outside of EC2, for example). OpenVPN is known ...
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59 views

Can connect through SSTP but not PPTP?

I have a window server 2008 r2 box behind a a Netgear AC1750 router. I've set up RRAS for a VPN and can successfully connect using SSTP, but if I try to connect to the VPN using PPTP I get a timeout ...
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86 views

How can you connect to an Azure Point-to-site VPN from the command line

I've setup an Azure virtual network (see here) and then followed this up with a point-to-site VPN for client machines to connect. What i'm wanting to do is launch and then kill the VPN link via the ...
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141 views

When connecting to PPTP Centos via Windows 7 VPN, I get error 2147943625

The remote computer refused the network connection. phrase has been my arch enemy for the past week now I recently "bought" a VPS server, I gave up trying to configure it with OpenVPN, all the issues ...
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64 views

Can suddenly no longer connect to VPN host after reboot?

I've had a solid connection to my home VPN server (windows 2012) from my office (windows 8.1) for days over PPTP and have had no issues. This morning, I had to hard-shutdown my server due to an ...
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182 views

Centos does not open port/s after the rule/s are appended

So after some battling and struggling with the firewall, i see that I may be doing something or the firewall isnt responding correctly there is has a port filter that is blocking certain ports. by ...
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50 views

PPTPD not work when connecting from Internet

I have VPN server on Debian stable. People in LAN (gray network) use this server for access to internet (WAN). But I also want to use this VPN server as something like "proxy" (connect from internet, ...
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126 views

Cisco ASA, Windows Server 08, PPTP/GRE issues

I am at the end of my rope on this one. I am trying to simply forward pptp/gre through a Cisco ASA to my Windows server. Here is what I have done: Access Rules: OUTSIDE ...
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2answers
141 views

How to configure RRAS to route all traffic through squid proxy?

I have a VPN server up and running on a windows server 2003. All the users are able to connect to the server and NAT their IP (use server IP and internet). but my problem is government filtering on my ...
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146 views

l2tp/pptp + freeradius (accounting information only gets updated on disconnect)

I have a basic PPTP/L2TP setup that uses a remote freeradius server with mysql. Issue is that when a user gets connected to the vpn and as long as the user stays connected (could be hours), no ...
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245 views

PPTP not working

I keep getting this error when attempting to log on to my new VPN server.. Sep 6 14:05:19 378465 pptpd[8171]: CTRL: Starting call (launching pppd, opening GRE) Sep 6 14:05:19 378465 pppd[8172]: ...
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64 views

PPTP VPN DNS by name and by FQDN

WE have remote users logging via PPTP (mostly Windows and IPhone) clients and accessing company servers. The servers have names like server1.company.lan and server2.company.lan I know very little ...
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99 views

Opening ports for VPN clients

I am trying to open specific ports for users so that they can use programs such as RDP. I have searched all over the internet, and have yet to find an answer to this question. I have tried every ...
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40 views

PPTP custom route connected clients

I got this PPTP box with many users. My box is configured to have remoteip 10.8.0.2-254 for my users. Each time a new client connects it gets 10.8.0.2 which is not good for me. I need a way of giving ...
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1answer
549 views

GRE: read from PTY failed error when connecting multiple clients to PPTP

I have just installed a pptp server and now I can make it work. The problem is, it can only be connected to by one client. How do I set it up so that it will allow multiple users? Here is the error ...
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176 views

PPTP connection gets terminated after I try to do a speedtest

my connection to pptp gets terminated when I try to do a speedtest on speedtest.net I have a vps account with centos 5 installed. It uses openvz for virtualization. on /var/logs/messages the error ...
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103 views

How do I add eth0 on centos 5 that is using openvz

I have a vps account with CentOS 5 installed. It uses OpenVZ for virtualization. Now I'm trying to install pptp service (using this guide) on it. I'm currently on Step 6 but I don't see any eth0 ...
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238 views

Restricting nginx website connection to VPN Users on the same server

My main aim is the following: Install a VPN server on a server, and a website on that server should be accessible only to users that are using the VPN on that same server. First, the two server case ...
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392 views

Windows Server: can't connect to File&Print services through PPTP VPN

We have setup a simple VPN server with PPTP enabled and have forwarded correct PPTP 1723 port and GRE 47 on plain Windows Server 2008(NOT R2). Now when I am trying to connect from any VPN client ie: ...
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107 views

Secure VPN on standalone Windows 2008 R2 server

I have been tasked with setting up a Windows 2008 R2 server, and I need to allow VPN access to it. I have RRAS set up which allows clients to connect via Windows VPN. Unfortunately, is uses PPTP by ...
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2answers
132 views

Resolve avahi hostnames via DNS

I would love to resolve avahi hostnames via DNS: I connect to the office VPN via PPTP but Avahi refuses to run on POINTOPOINT interfaces. I just want to resolve avahi hostnames via the DNS ...