armbian on odroid c2 is there any default firewall

[jumbo125]

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

[Werner]

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

[jumbo125]

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

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

[Werner]

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.

[jumbo125]

okay thank you!!!!!

 

 

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

Solution is three post before.

Edited April 8, 2023 by jumbo125