Changes between Version 7 and Version 8 of Csle2022/Agenda/FW


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Timestamp:
Oct 20, 2022, 11:18:40 AM (2 years ago)
Author:
geethike
Comment:

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  • Csle2022/Agenda/FW

    v7 v8  
    5252The Rules you set in the iptables are checked from the topmost rules to the bottom. Whenever a packet passes any of the top rules, it is allowed to pass the firewall. The lower rules are not checked. So be careful while setting up rules.'''
    5353
     54= Basic iptables commands : =
     55To list the rules of the current iptables:-[[BR]]
     56{{{
     57sudo iptables -L
     58}}}
     59The Output would be:-
     60image
     61
     62As you can see, we have three chains (INPUT, FORWARD, OUTPUT). We can also see column headers, but they are no actual rules. This is because most of the Linux come with no predefined rules.
     63
     64Let see what each column mean.