1 

     2 ==========

     3  iptables

     4 ==========

     5 .. contents::

     6    :local:

     7 

     8 View iptables rules

     9 ===================

    10 

    11 In command format with ``-S``::

    12 

    13   iptables -S

    14 

    15 In table format with ``-L``::

    16 

    17   /sbin/iptables -L

    18   iptables -L

    19   iptables -L INPUT

    20   iptables -L OUTPUT

    21 

    22 Show rule stats (#packets/#bytes) with ``-v``::

    23 

    24   iptables -L -v

    25 

    26 To clear stats counters::

    27 

    28   sudo iptables -Z

    29   sudo iptables -Z INPUT

    30 

    31 Blocking incoming connections

    32 =============================

    33 

    34 For given protocol, device and port::

    35 

    36   sudo iptables -A INPUT -i eth0 -p tcp --dport 9200 -j DROP

    37 

    38 To delete rule::

    39 

    40   sudo iptables -D INPUT -i eth0 -p tcp --dport 9200 -j DROP

    41