Install
http://www.panticz.de/install_OpenVPN
Restore prevoius NetworkManager OpenVPN configurations
#!/bin/bash
if [ $(grep sda1 /etc/mtab | wc -l) -eq 1 ]; then
DEV=sda2
else
DEV=sda1
fi
sudo mount /dev/${DEV} /mnt
for i in $(find /mnt/etc/NetworkManager/system-connections -name "*.openvpn"); do
sudo cp $i /etc/NetworkManager/system-connections/
done
sudo umount /mnt
>
# set file permission and owner
echo sudo chown root:root /etc/NetworkManager/system-connections/*.openvpn
echo sudo chmod 600 /etc/NetworkManager/system-connections/*.openvpn
config file
tls-client client dev tun proto udp tun-mtu 1400 remote YOUR_HOST.dyndns.org 1194 ca ca.pem cert user.pem key keys.pem cipher BF-CBC comp-lzo verb 3 ns-cert-type server tls-remote YOUR_HOST.dyndns.org float
Connect to Client in same IP range
route add 192.168.1.31 dev tap0
extract p12 file
# Convert PKCS12 to PEM openssl pkcs12 -nodes -in *.p12 -out ca.pem # Extract private key openssl pkey -in ca.pem -out priv.pem # Extract certificate openssl x509 -in ca.pem -out certificate.pem # openssl pkcs12 -in *.p12 -clcerts -nokeys -nodes -out user.pem # openssl pkcs12 -in *.p12 -cacerts -nodes -out ca.pem # openssl pkcs12 -in *.p12 -nocerts -nodes -out keys.pem
remove passphrase from a pkcs12 certificate
openssl pkcs12 -in protected.p12 -nodes -out /tmp/temp.pem openssl pkcs12 -export -in /tmp/temp.pem -out unprotected.p12
OpenVPN Gui (Client for Windows)
http://man.chinaunix.net/linux/efw-admin-guide-html-chunk/efw.vpn.openvpn.html
C:\Programme\OpenVPN\config\YOUR_VPN.ovpn (old)
client
proto udp
remote YOUR_SERVER.dyndns.org
resolv-retry infinite
nobind
persist-key
persist-tun
ca YOUR_CERT.cer
auth-user-pass
comp-lzo
dev tap
Configure Gnome Network Applet for Endian
VPN-Connections > VPN-Configure
Add
Create
Connection Name: YOUR_VPN_NAME
Gateway: YOUR_VPN_SERVER_IP
Type: Password
Username: YOUR_VPN_USER_NAME
Password: YOUR_VPN_PASS
CA Certificate: YOUR_ENDIAN .pem file
Advanced:
Use LZO Data Compression: checked
Use a TAP Device: check
OK
IPv4 settings > Routing:
Add
Address: YOUR_VPN_NETWORK (192.168.1.0)
Netmask: 255.255.255.0
backup your OpenVPN connections
tar cjf ~/backup/system-connections.$(date -I).tar.bz2 /etc/NetworkManager/system-connections/
Android
https://play.google.com/store/apps/details?id=de.blinkt.openvpn&hl=de
http://www.rz.uni-kiel.de/pc/openvpn/AndroidVPN
Links
http://askubuntu.com/questions/29086/where-are-vpn-configuration-files-imported-by-network-manager-saved
http://www.ipcop-forum.de/forum/viewtopic.php?p=167998
http://www.ngs.ac.uk/useful-openssl-commands
http://www.sven-kuegler.de/tag/openvpn
http://www.ngs.ac.uk/useful-openssl-commands
http://man.chinaunix.net/linux/efw-admin-guide-html-chunk/efw.vpn.openvpn.html