diff options
| author | Cody Hiar <codyfh@gmail.com> | 2018-05-12 19:31:38 -0600 |
|---|---|---|
| committer | Cody Hiar <codyfh@gmail.com> | 2018-05-12 19:31:38 -0600 |
| commit | 7910823bd48800dfa4903fd0047f09255cae04ad (patch) | |
| tree | b9e4f4ac99fb8466ef7382bc2d228ea1b4ab9fa4 | |
| parent | 58a1a961d79991641be5b9c3ccec2ef750085d8d (diff) | |
Making dhcp script repeatable
| -rwxr-xr-x | dhcp-server.sh | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/dhcp-server.sh b/dhcp-server.sh index 7a84d23..ac4b75c 100755 --- a/dhcp-server.sh +++ b/dhcp-server.sh @@ -9,7 +9,11 @@ ROUTERIP='192.168.123.1' echo 'Restarting Device' ip link set "$DEVICE" down ip link set "$DEVICE" up -ip addr add "$ROUTERIP"/24 dev "$DEVICE" # arbitrary address +# Check if ip already assigned +IP_ASSIGNED=$(ip a | grep -A 5 ens9 | grep 192.168.123.1) +if [ -z "$IP_ASSIGNED" ]; then + ip addr add "$ROUTERIP"/24 dev "$DEVICE" # arbitrary address +fi echo 'Allowing ip forwarding/enabling Nat' sysctl net.ipv4.ip_forward=1 @@ -20,7 +24,7 @@ iptables -A FORWARD -i "$DEVICE" -o "$INTERNET" -j ACCEPT echo 'Creating /etc/dhcpd.conf file' #Config file: /etc/dhcpd.conf cat > /etc/dhcpd.conf <<- EOM -option domain-name-servers 1.1.1.1, 1.0.0.1; +option domain-name-servers 8.8.8.8, 8.8.4.4; option subnet-mask 255.255.255.0; option routers 192.168.123.100; subnet 192.168.123.0 netmask 255.255.255.0 { @@ -30,4 +34,5 @@ EOM #Database file: /var/lib/dhcp/dhcpd.leases # cat this to see if a device has been assigned a lease #PID file: /var/run/dhcpd.pid +pkill dhcpd || true dhcpd $DEVICE |