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Old 11-24-2008, 03:23 PM
"Germán Andrés Pulido F."
 
Default PPTP VPN server

Hi

I've been using linux to give VPN access to my corporate LAN using the
following software:


Centos 5.2 x86
kernel 2.6.18-92.1.18.el5xen
pptpd (poptop) 1.3.4
ppp 2.4.4

The Centos server has directly connected the Internet Router, on one
interface (eth1) and the LAN on another (eth0) and it works as the
firewall/VPN server of my LAN.
It mostly works, however, if I try to connect using remote desktop
(terminal services) to our windows domain controller (for example, it
will happen with any windows server) the Centos server will just reboot.
I can connect to the windows, authenticate, and work for about 5-10
seconds before the linux reboots. It's not a friendly reboot, it just
crashes and restarts. This linux is running virtualized with xenserver
express, and the windows domain controller is running as another virtual
machine in the same physical computer. I've updated the CentOS server,
using yum update but it will still crash. I tried installing pptpd from
source, but still crashes the same way. I googled a bit, and somebody
said it had a similar issue but solved it lowering the MTU in the WAN
interface of the VPN server. I did it, but nothing helped. I've searched
bug reports on this, but there seems to be none. Any idea what can I do
to fix this? or does anybody know another good VPN server for linux? (I
know about openvpn and using ipsec+xl2tpd but these require additional
software on the client or are not very linux-friendly). My main
requiements for the VPN server are:


- it should require no additional software on the windows clients (Vista
and XP currently)

- it should work fine with Mac OS X and linux clients
- if posible, not very hard to setup

Thanks a lot, and sorry for the long post.


--

Cordialmente,


GERMAN ANDRES PULIDO F.
Ingeniero de Proyectos
GLOBAL TECHNOLOGY SERVICES - GTS S.A.
-------------------------------------
Tel: (571) 658 34 10 ext 110
Carrera 7b No. 123-46
Bogotá-Colombia
Sitio Web: www.gtscolombia.com

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