[es] - iptables dozvoljavanje samo određenih protokola

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iptables dozvoljavanje samo određenih protokola

^{12.01.2009. u 18:51 - pre 185 meseci}

Imam mrežu koja preko jednog računala ima izlaz na net (mreža->računalo s 2 lan kartice->adsl modem).

Situacija je slijedeća: očajno želim stati na kraj s torrentima i ostalom p2p prometu.
Pokušao sam slijedeće, i vidi se da ova pravila hvataju neki promet. Ali ako na kraj dodam DROP, sve stane i ništa ne prolazi (osim pinga, no to ne ide preko layer7 filtra)...

Code:

Chain FORWARD (policy ACCEPT 222K packets, 57M bytes)
pkts bytes target     prot opt in     out     source               destination
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto aim
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto aimwebcontent
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto cvs
4259  827K ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto dns
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto ftp
578K  475M ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto http
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto imap
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto irc
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto jabber
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto live365
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto msn-filetransfer
7672 1353K ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto msnmessenger
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto nntp
26408   18M ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto ntp
   94  9332 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto pop3
   30  1456 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto qq
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto radmin
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto rdp
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto replaytv-ivs
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto rlogin
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto rtsp
56211   42M ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto shoutcast
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto sip
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto skypeout
2984  447K ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto skypetoskype
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto ssh
   43  2408 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto stun
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto subversion
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto teamspeak
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto telnet
5665  918K ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto tsp
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto vnc
2987  614K ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto whois
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            LAYER7 l7proto yahoo
    0     0 ACCEPT     tcp  --  any    any     10.0.252.3           anywhere            tcp dpt:smtp
    0     0 ACCEPT     tcp  --  any    any     10.0.16.10           anywhere            tcp dpt:smtp
    0     0 ACCEPT     tcp  --  any    any     10.0.16.11           anywhere            tcp dpt:smtp
    0     0 REJECT     tcp  --  any    any     anywhere             anywhere            tcp dpt:smtp reject-with icmp-port-unreachable
  426 46288 ACCEPT     icmp --  any    any     anywhere             anywhere

Gdje griješim?

Hvala!

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