For some weird reason, I can not get my OpenVPN server to come up at boot time using systemd on an Ubuntu Linux 16.04 LTS server. I have tried a few settings but failed so far.
So I twitted about it:
— nixCraft (@nixcraft) August 5, 2016
Here is my /lib/systemd/system/openvpn.service file:
# cat /lib/systemd/system/openvpn.service
# This service is actually a systemd target, # but we are using a service since targets cannot be reloaded. [Unit] Description=OpenVPN service After=network.target [Service] Type=oneshot RemainAfterExit=yes ExecStart=/bin/true ExecReload=/bin/true WorkingDirectory=/etc/openvpn [Install] WantedBy=multi-user.target
I wanted to run services after the network is up so that OpenVPN can bind to specific IP and port. The After=network.target tells to wait until the nework is “up”.
I finally gave up and simply wrote cron job that will start after each system reboot:
@reboot sleep 100;/etc/init.d/openvpn restart;/etc/init.d/ssh restart;/etc/init.d/squid reload
The @reboot forces to run job once, at startup. In this case, restart the openvpn server, and bind sshd/squid to openvpn port:
$ ss -tulpn
$ netstat -tulpn
tcp 0 0 10.8.0.1:80 0.0.0.0:* LISTEN 1549/lighttpd tcp 0 0 0.0.0.0:53 0.0.0.0:* LISTEN 1524/dnsmasq tcp 0 0 10.8.0.1:22 0.0.0.0:* LISTEN 1756/sshd tcp 0 0 10.8.0.1:3128 0.0.0.0:* LISTEN 1675/(squid-1) tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 1732/openvpn
There must be a way to run services (OpenVPN) after the network is up. However, I failed to figure it out. If anyone knows how to fix this problem without using cron, let me know in the comments section below.