Reconfigure VPN
Contents
- 1 DFNEXT systems
- 1.1 Login to the camera system...
- 1.2 Disable and remove the old VPN config
- 1.3 Transfer the DFNEXT099.zip file provided by the DFN team to /etc/openvpn on the camera (scp/winscp/sftp/rsync or so)
- 1.4 Unzip the configuration, password protected for security reasons
- 1.5 Install and activate the new config - on the camera system as root connected using local IP
- 1.6 Verify that it is running
- 2 DFNKIT & DFNSMALL systems
DFNEXT systems
These instructions are for system DFNEXT099, please replace with a corresponding number for your camera system.
Login to the camera system...
...either locally using ethernet wire or WiFi or just use screen and keyboard (HDMI, screen needs to be connected before powering up the camera box).
Disable and remove the old VPN config
cd /etc/openvpn
systemctl stop openvpn@DFNEXT099.service systemctl disable openvpn@DFNEXT099.service systemctl mask openvpn@DFNEXT099.service
rm -rf DFNEXT099.conf DFNEXT099.tgz keys
Transfer the DFNEXT099.zip file provided by the DFN team to /etc/openvpn on the camera (scp/winscp/sftp/rsync or so)
Unzip the configuration, password protected for security reasons
Note: the password (hint) will arrive in a separate e-mail message, not with the VPN config file.
cd /etc/openvpn
unzip DFNEXT099.zip
... that creates file DFNEXT099.tar.gz
Install and activate the new config - on the camera system as root connected using local IP
root@DFNEXT099:/etc/openvpn# tar -xvzf DFNEXT099.tar.gz client/DFNEXT099.conf client/keys-gfo/ client/keys-gfo/DFNEXT099.crt client/keys-gfo/ca.crt client/keys-gfo/ta.key client/keys-gfo/DFNEXT099.key
systemctl start openvpn-client@DFNEXT099.service
systemctl enable openvpn-client@DFNEXT099.service
Verify that it is running
root@DFNEXT099:/etc/openvpn# systemctl status openvpn-client@DFNEXT099.service
● openvpn-client@DFNEXT099.service - OpenVPN tunnel for DFNEXT099
Loaded: loaded (/lib/systemd/system/openvpn-client@.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2023-01-29 03:11:35 MST; 2 weeks 3 days ago
Docs: man:openvpn(8)
https://community.openvpn.net/openvpn/wiki/Openvpn24ManPage
https://community.openvpn.net/openvpn/wiki/HOWTO
Main PID: 15223 (openvpn)
Status: "Initialization Sequence Completed"
CGroup: /system.slice/system-openvpn\x2dclient.slice/openvpn-client@DFNEXT099.service
└─15223 /usr/sbin/openvpn --suppress-timestamps --nobind --config DFNEXT099.conf
root@DFNEXT099:/etc/openvpn# ip a | grep tun
15: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 100
inet 10.1.23.99/20 brd 10.1.31.255 scope global tun0
root@DFNEXT099:/etc/openvpn# ping -c 3 dfn_vpn PING dfnserver_vpn (10.1.16.1) 56(84) bytes of data. 64 bytes from dfnserver_vpn (10.1.16.1): icmp_seq=1 ttl=64 time=213 ms 64 bytes from dfnserver_vpn (10.1.16.1): icmp_seq=2 ttl=64 time=211 ms 64 bytes from dfnserver_vpn (10.1.16.1): icmp_seq=3 ttl=64 time=220 ms --- dfnserver_vpn ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2002ms rtt min/avg/max/mdev = 211.841/215.206/220.417/3.755 ms
DFNKIT & DFNSMALL systems
Note: this is an example for DFNKIT22. Replace the hostname according to the system you are working on.
Remove the old config file and keys/certificates
(and also the old config tarbal *.tgz)
DFNKIT22 ~ # cd /etc/openvpn DFNKIT22 openvpn # rm -rf DFNKIT22.conf DFNKIT22.tgz keys
Note: If not sure what to delete, the old certs can stay and the .conf file actually gets overwritten when unwrapping the tar.gz. However, there is no use for the old keys/certificate, as that is expired.
Then unwrap the new config into /etc/openvpn
(still in folder /etc/openvpn)
DFNKIT22 openvpn # tar -xvzf DFNKIT22.tar.gz
That creates new .conf and certs in keys-gfo subfolder.
Then restart the openvpn client service
DFNKIT22 openvpn # service openvpn restart
Verify that it is running
DFNKIT22 ~ # service openvpn status [ ok ] VPN 'DFNKIT22' is running.
DFNKIT22 openvpn # ip a | grep tun
4: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 100
inet 10.1.21.22/20 brd 10.1.31.255 scope global tun0
DFNKIT22 openvpn # ping -c 3 dfn_vpn PING dfnserver_vpn (10.1.16.1) 56(84) bytes of data. 64 bytes from dfnserver_vpn (10.1.16.1): icmp_req=1 ttl=64 time=234 ms 64 bytes from dfnserver_vpn (10.1.16.1): icmp_req=2 ttl=64 time=234 ms 64 bytes from dfnserver_vpn (10.1.16.1): icmp_req=3 ttl=64 time=233 ms
--- dfnserver_vpn ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2003ms rtt min/avg/max/mdev = 233.998/234.104/234.203/0.083 ms
