IP Table, what does this construct mean ::INPUT ACCEPT [0:0]
I am looking at an IP Table construct, what does the following mean :
:INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0]
thanks
It means that the default policy for those three chains is ACCEPT, so all packets (in, out, and forwarded through your system) are 'accepted' (go through), and not firewalled (rejected or dropped).
Depending on the place where you got that, it might mean your current policy, or the default 'empty' policy for your system.
more info here