# aptitude install liblzo2-dev
# cd openvpn-2.1.1
./configure --enable-small --disable-selinux \
--with-ssl-headers=/usr --with-ssl-lib=/usr \
--with-lzo-headers=/usr --with-lzo-lib=/usr \
--prefix=/usr --sysconfdir=/etc
# make -j2
# make install
# openvpn --version
OpenVPN 2.1.1 x86_64-unknown-linux-gnu [SSL] [LZO2] [EPOLL] built on Apr 29 2010
Originally developed by James Yonan
Copyright (C) 2002-2009 OpenVPN Technologies, Inc. <sales@openvpn.net>

cd /usr/share/doc/openvpn/easy-rsa
source vars
sh clean-all

sh build-ca

sh build-key-server server

sh build-key client1

sh build-dh

port 1234
proto tcp
dev tun
ca /etc/openvpn/ca.crt
cert /etc/openvpn/server.crt
key /etc/openvpn/server.key  # This file should be kept secret
dh /etc/openvpn/dh1024.pem
server 10.8.0.0 255.255.255.0
ifconfig-pool-persist ipp.txt
client-to-client
keepalive 10 120
cipher DES-EDE3-CBC  # Triple-DES
comp-lzo
user nobody
group nogroup
persist-key
persist-tun
status openvpn-status.log
log         /var/log/openvpn.log
verb 3
tun-mtu 1400 # this is just for me

client
dev tun
proto tcp
remote vpngw.domain.tld 1234
resolv-retry infinite
nobind
user nobody
group nogroup
persist-key
persist-tun
ca ca.crt
cert client.crt
key client.key
ns-cert-type server
cipher DES-EDE3-CBC
comp-lzo
verb 3
tun-mtu 1400