Script Auto Monitor Gateway VM to Host

Buat script di Ubuntu:

sudo nano /usr/local/bin/net-recover.sh

Isi:

#!/bin/bash

GATEWAY="192.168.1.1"
INTERFACE="enp0s3"

if ! ping -c 2 -W 1 $GATEWAY > /dev/null; then
    echo "Gateway unreachable. Restarting interface..."
    ip neigh flush all
    ip link set $INTERFACE down
    sleep 2
    ip link set $INTERFACE up
fi

Beri permission:

sudo chmod +x /usr/local/bin/net-recover.sh

Jalankan tiap 1 menit via cron:

sudo crontab -e

Tambahkan:

* * * * * /usr/local/bin/net-recover.sh

Sekarang:
Kalau gateway unreachable → interface reset otomatis.