debian/example/100.fw

   1 # Example VM firewall configuration
   2
   3 # VM specific firewall options
   4 [OPTIONS]
   5
   6 # disable/enable the whole thing
   7 enable: 1
   8
   9 # disable/enable MAC address filter
  10 macfilter: 0
  11
  12 # default policy
  13 policy_in: DROP
  14 policy_out: REJECT
  15
  16 # log dropped incoming connection
  17 log_level_in: info
  18
  19 # disable log for outgoing connections
  20 log_level_out: nolog
  21
  22 # enable DHCP
  23 dhcp: 1
  24
  25 # enable ips
  26 ips: 1
  27
  28 # specify nfqueue queues (optionnal)
  29 #ips_queues: 0
  30 ips_queues: 0:3
  31
  32 [IPSET ipfilter-net0] # only allow specified IPs on net0
  33 192.168.2.10
  34
  35 [RULES]
  36
  37 #TYPE ACTION [OPTIONS]
  38 # -i      <INTERFACE>
  39 # -source <SOURCE>
  40 # -dest   <DEST>
  41 # -p      <PROTOCOL>
  42 # -dport  <DESTINATION_PORT>
  43 # -sport  <SOURCE_PORT>
  44
  45 IN SSH(ACCEPT) -i net0
  46 IN SSH(ACCEPT) -i net0 # a comment
  47 IN SSH(ACCEPT) -i net0 -source 192.168.2.192  # only allow SSH from  192.168.2.192
  48 IN SSH(ACCEPT) -i net0 -source 10.0.0.1-10.0.0.10 #accept SSH for ip in range 10.0.0.1 to 10.0.0.10
  49 IN SSH(ACCEPT) -i net0 -source 10.0.0.1,10.0.0.2,10.0.0.3 #accept ssh for 10.0.0.1 or 10.0.0.2 or 10.0.0.3
  50 IN SSH(ACCEPT) -i net0 -source +mynetgroup   #accept ssh for ipset mynetgroup
  51 IN SSH(ACCEPT) -i net0 -source myserveralias   #accept ssh for alias myserveralias
  52
  53 |IN SSH(ACCEPT) -i net0 # disabled rule
  54
  55 # add a security group
  56 GROUP group1 -i net0
  57
  58 OUT DNS(ACCEPT) -i net0
  59 OUT Ping(ACCEPT) -i net0
  60 OUT SSH(ACCEPT)
  61
  62
  63