pkillarjun·2 年前·議論> sudo lsof -n -i -P | grep -i "cups">cupsd 2843 root 7u IPv6 12941 0t0 TCP [::1]:631 (LISTEN)>cupsd 2843 root 8u IPv4 12942 0t0 TCP 127.0.0.1:631 (LISTEN)There is no open UDP port for CUPSD, so relax.
pkillarjun·2 年前·議論First I thought, "S%%t, I am hacked," because I know in Fedora CUPSD is installed by default and runs at boot.> /etc/cups/cupsd.conf> Listen localhost:631After some checking, I found out by default CUPSD only runs at localhost. So, yeah, you don't have to worry about this in Fedora either.