How to make tun0 appear after openvpn installation without rebooting?

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I am installing openvpn on Ubuntu 18.04. The installation and setup goes smoothly. I start the systemd service and it succeeds. But, there is no tun0 interface in ip a.



If I reboot, then tun0 is there.



I tried modprobe tun before rebooting but that didn't change anything.



What does tun0 need to appear without a reboot?






systemd openvpn







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  • 1




    Enabling and starting a service is not the same. All enabling does is making sure the service is started on every boot. Just start the service (replace "enable" with "start") and tun0 should appear.
    – Fang
    14 hours ago











  • I start the service, I edited the post.
    – user1371264
    12 hours ago






  • 1




    Please post more information to allow us to troubleshoot this. For instance, output of systemctl status openvpn.service (or whatever the exact service name you're starting is), perhaps some lines from journalctl -e that you think might be relevant, snippets from ip a, lsmod, etc. You need to provide more information in your question to get an useful answer to it. Thanks!
    – Filipe Brandenburger
    12 hours ago






  • 1




    To add to what @FilipeBrandenburger said: There's no way the start of the service is successful if tun0 doesn't appear.
    – Fang
    11 hours ago














up vote
0
down vote

favorite












I am installing openvpn on Ubuntu 18.04. The installation and setup goes smoothly. I start the systemd service and it succeeds. But, there is no tun0 interface in ip a.



If I reboot, then tun0 is there.



I tried modprobe tun before rebooting but that didn't change anything.



What does tun0 need to appear without a reboot?






systemd openvpn







share|improve this question



















  • 1




    Enabling and starting a service is not the same. All enabling does is making sure the service is started on every boot. Just start the service (replace "enable" with "start") and tun0 should appear.
    – Fang
    14 hours ago











  • I start the service, I edited the post.
    – user1371264
    12 hours ago






  • 1




    Please post more information to allow us to troubleshoot this. For instance, output of systemctl status openvpn.service (or whatever the exact service name you're starting is), perhaps some lines from journalctl -e that you think might be relevant, snippets from ip a, lsmod, etc. You need to provide more information in your question to get an useful answer to it. Thanks!
    – Filipe Brandenburger
    12 hours ago






  • 1




    To add to what @FilipeBrandenburger said: There's no way the start of the service is successful if tun0 doesn't appear.
    – Fang
    11 hours ago












up vote
0
down vote

favorite









up vote
0
down vote

favorite











I am installing openvpn on Ubuntu 18.04. The installation and setup goes smoothly. I start the systemd service and it succeeds. But, there is no tun0 interface in ip a.



If I reboot, then tun0 is there.



I tried modprobe tun before rebooting but that didn't change anything.



What does tun0 need to appear without a reboot?






systemd openvpn







share|improve this question















I am installing openvpn on Ubuntu 18.04. The installation and setup goes smoothly. I start the systemd service and it succeeds. But, there is no tun0 interface in ip a.



If I reboot, then tun0 is there.



I tried modprobe tun before rebooting but that didn't change anything.



What does tun0 need to appear without a reboot?






systemd openvpn




systemd openvpn






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 12 hours ago

























asked 15 hours ago









user1371264

1396




1396







  • 1




    Enabling and starting a service is not the same. All enabling does is making sure the service is started on every boot. Just start the service (replace "enable" with "start") and tun0 should appear.
    – Fang
    14 hours ago











  • I start the service, I edited the post.
    – user1371264
    12 hours ago






  • 1




    Please post more information to allow us to troubleshoot this. For instance, output of systemctl status openvpn.service (or whatever the exact service name you're starting is), perhaps some lines from journalctl -e that you think might be relevant, snippets from ip a, lsmod, etc. You need to provide more information in your question to get an useful answer to it. Thanks!
    – Filipe Brandenburger
    12 hours ago






  • 1




    To add to what @FilipeBrandenburger said: There's no way the start of the service is successful if tun0 doesn't appear.
    – Fang
    11 hours ago












  • 1




    Enabling and starting a service is not the same. All enabling does is making sure the service is started on every boot. Just start the service (replace "enable" with "start") and tun0 should appear.
    – Fang
    14 hours ago











  • I start the service, I edited the post.
    – user1371264
    12 hours ago






  • 1




    Please post more information to allow us to troubleshoot this. For instance, output of systemctl status openvpn.service (or whatever the exact service name you're starting is), perhaps some lines from journalctl -e that you think might be relevant, snippets from ip a, lsmod, etc. You need to provide more information in your question to get an useful answer to it. Thanks!
    – Filipe Brandenburger
    12 hours ago






  • 1




    To add to what @FilipeBrandenburger said: There's no way the start of the service is successful if tun0 doesn't appear.
    – Fang
    11 hours ago







1




1




Enabling and starting a service is not the same. All enabling does is making sure the service is started on every boot. Just start the service (replace "enable" with "start") and tun0 should appear.
– Fang
14 hours ago





Enabling and starting a service is not the same. All enabling does is making sure the service is started on every boot. Just start the service (replace "enable" with "start") and tun0 should appear.
– Fang
14 hours ago













I start the service, I edited the post.
– user1371264
12 hours ago




I start the service, I edited the post.
– user1371264
12 hours ago




1




1




Please post more information to allow us to troubleshoot this. For instance, output of systemctl status openvpn.service (or whatever the exact service name you're starting is), perhaps some lines from journalctl -e that you think might be relevant, snippets from ip a, lsmod, etc. You need to provide more information in your question to get an useful answer to it. Thanks!
– Filipe Brandenburger
12 hours ago




Please post more information to allow us to troubleshoot this. For instance, output of systemctl status openvpn.service (or whatever the exact service name you're starting is), perhaps some lines from journalctl -e that you think might be relevant, snippets from ip a, lsmod, etc. You need to provide more information in your question to get an useful answer to it. Thanks!
– Filipe Brandenburger
12 hours ago




1




1




To add to what @FilipeBrandenburger said: There's no way the start of the service is successful if tun0 doesn't appear.
– Fang
11 hours ago




To add to what @FilipeBrandenburger said: There's no way the start of the service is successful if tun0 doesn't appear.
– Fang
11 hours ago















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