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Improve TUN device check

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While it looks hackish, I don't think there's a better way (in Bash) to open
the /dev/net/tun character device.

Checking for presence of /dev/net/tun like were doing is not good enough.
This commit is contained in:
Nyr 2020-05-14 19:05:05 +02:00 • committed by Aleksandar Spasojevic
parent 7d8fcbb476
commit 8013ec56a0
1 changed files with 5 additions and 3 deletions
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8
openvpn-install.sh
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@ -57,9 +57,11 @@ This version of CentOS is too old and unsupported"
exit
fi
if [[ ! -e /dev/net/tun ]]; then
echo "The TUN device is not available
You need to enable TUN before running this script"
if [[ -e /dev/net/tun ]] && exec 2>/dev/null 7<>/dev/net/tun; then
exec 7>&-
else
echo "This system does not have the TUN device available
TUN needs to be enabled before running this installer"
exit
fi