commands are:

iptables -I INPUT -p tcp --dport 3389 -j ACCEPT > to open only that tcp port

sudo ufw enable transmission > to open the whole program

being a newbie I’d say it’s safer to only open a determined port with iptables. What do you think?

  • Voytrekk
    13•7 months ago

    Both are fine. Ufw has a set of applications that are defined in terms of what ports they need for convenience. You wouldn’t have to know that 3389 is for RDP, you could just allow RDP. Ufw ultimately modifies the iptables, it is just another interface for interacting with it.

  • @ozymandias117English
    7•7 months ago

    A big thing the other comments are missing is that just running the iptables rule only works for the current boot. You need something to rerun it every restart

    ufw is a front end to make it easier to use them

    If you want/need more control, you should look into /etc/iptables/rules.d config files

    Edit: or depending on what your distro already has, the firewalld comment makes a lot of sense. E.g. that’s Fedora’s default front end

  • @db2
    2•7 months ago

    As long as you trust Transmission it’s fine. If you didn’t then you wouldn’t want it to effectively decide what ports it gets.

    • Voytrekk
      1•7 months ago

      Transmission is defined as an application for ufw, not as an executable.

      • @db2
        1•7 months ago

        👍

  • boredsquirrel
    2•7 months ago

    ufw or firewalld have presets and will automatically open the right ports and traffic types.

    Also these are different programs.