How to reconnect VM network bridge after DNS/domain update in SynetoOS 6

Written By Christian Castagna (Administrator)

Updated at September 5th, 2025

→ Applies to: SynetoOS 6.x

Step 1. Connect to SynetoOS appliance via SSH as admin

ssh admin@<your_ip_address_or_hostname>

Step 2. Become Super User

sudo su

Step 3. Edit /tmp/rejoin-vnets.sh file

vi /tmp/rejoin-vnets.sh

IMPORTANT
Make sure to copy and paste the exact lines below

for dev in $(ls -d /sys/class/net/vnet*); do
    dev=$(basename $dev)
    sudo ip link set dev $dev nomaster
    sudo ip link set dev $dev master vswitch0
    sudo ip link set $dev up
done

Step 4. Change permissions on /tmp/rejoin-vnets.sh file

chmod +x /tmp/rejoin-vnets.sh

Step 5. Run this command

sh /tmp/rejoin-vnets.sh

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