iptables20250326.txt

(C) David Vajda
2025-03-26
iptables, excersize, auswendig, ...

iptables

    chains
    tables

    tables:
        filter
        nat
        mangle
        raw
    chains:
        INPUT
        PREROUTING
        FORWARD
        POSTROUTING
        OUTPUT

    -A INPUT
    -A A PREROUTING
    ...

    Action:
        DROP
        REJECT
        ACCEPT
        LOG
        ...

    -j ACTION

    -d Destination Address
    -s Source Address

    -dport --destination-port
    -sport --source-port

    -p protocoll
        TCP/ICMP/UDP