Php/OpenVPN-Admin
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Detect primary NIC device name programatically

Browse Source 
Why:

* The install script assumes eth0 NIC as primary NIC.  This is sometimes wrong.

This change addresses the need by:

* This simple change makes a better guess by looking at the default route on the system.
This commit is contained in:
Brock Harris 2018-02-17 12:09:37 -07:00 committed by Chocobozzz
parent 3d5f44cf21
commit 7674ff8a56
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
install.sh
View File

@ -196,15 +196,18 @@ printf "\n################## Setup firewall ##################\n"
echo 1 > "/proc/sys/net/ipv4/ip_forward"
echo "net.ipv4.ip_forward = 1" >> "/etc/sysctl.conf"
# Get primary NIC device name
primary_nic=`route | grep '^default' | grep -o '[^ ]*$'`
# Iptable rules
iptables -I FORWARD -i tun0 -j ACCEPT
iptables -I FORWARD -o tun0 -j ACCEPT
iptables -I OUTPUT -o tun0 -j ACCEPT
iptables -A FORWARD -i tun0 -o eth0 -j ACCEPT
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE
iptables -t nat -A POSTROUTING -s 10.8.0.2/24 -o eth0 -j MASQUERADE
iptables -A FORWARD -i tun0 -o $primary_nic -j ACCEPT
iptables -t nat -A POSTROUTING -o $primary_nic -j MASQUERADE
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o $primary_nic -j MASQUERADE
iptables -t nat -A POSTROUTING -s 10.8.0.2/24 -o $primary_nic -j MASQUERADE
printf "\n################## Setup MySQL database ##################\n"