Hello

I'm a newbie and want to start my tour with my odroid c2

 

for the beginn i want to install a vnc server.

So i tried to setup the port 5901 tcp (opoen/free)

if i try  ufw allow 5901/tcp i get ufw not found

if i try iptables -a ........ dport 5901  i get dport not found

 

 

So my question, is there any firwall on the default system?

 

Thank you a lot

There is not. Install iptables or nftables or a framework like ufw via apt that makes use of either one of those.

ah okay. is it important to have a fw on my local armbian?

it is connected with the web, so i would prefer it

This can only be answered by you since you are responsible for the security of your device so decision is yours if firewalling is necessary.

okay thank you!!!!!

 

 

p.s. for something who needs the same fix:

Solution is three post before.

Edited April 8, 20233 yr by jumbo125