Ubuntu-fr

dancom

[résolu via un autre msg] IPtables suggestions (reformulation)

Bonjour.
(reformulation de ma requête)

Que pensez-vous de mon IPTABLES ?

Des amélioration?

:FORWARD DROP [0:0]
:INPUT DROP [0:0]
:OUTPUT ACCEPT [0:0]
-A FORWARD -o eth0 -j LOG  --log-level 7 --log-prefix BANDWIDTH_OUT:
-A FORWARD -i eth0 -j LOG  --log-level 7 --log-prefix BANDWIDTH_IN:
-A OUTPUT -o eth0 -j LOG  --log-level 7 --log-prefix BANDWIDTH_OUT:
-A INPUT -i eth0 -j LOG --log-level 7 --log-prefix BANDWIDTH_IN:
# Accept traffic from internal interfaces
-A INPUT ! -i eth0 -j ACCEPT
# Accept traffic with the ACK flag set
-A INPUT -p tcp -m tcp --tcp-flags ACK ACK -j ACCEPT
# Allow incoming data that is part of a connection we established
-A INPUT -m state --state ESTABLISHED -j ACCEPT
# Allow data that is related to existing connections
-A INPUT -m state --state RELATED -j ACCEPT
# Accept responses to DNS queries 
-A INPUT -p udp -m udp --dport 1024:65535 --sport 53 -j ACCEPT
# Accept responses to our pings
-A INPUT -p icmp -m icmp --icmp-type echo-reply -j ACCEPT
# Accept notifications of unreachable hosts
-A INPUT -p icmp -m icmp --icmp-type destination-unreachable -j ACCEPT
# Accept notifications to reduce sending speed
-A INPUT -p icmp -m icmp --icmp-type source-quench -j ACCEPT
# Accept notifications of lost packets
-A INPUT -p icmp -m icmp --icmp-type time-exceeded -j ACCEPT
# Accept notifications of protocol problems
-A INPUT -p icmp -m icmp --icmp-type parameter-problem -j ACCEPT
# Accept local ftp local
-A INPUT -p tcp -m tcp -s 192.168.1.3 --dport 20:21 -j ACCEPT
# Accept sites
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT

Internet passe par un routeur à l'ordinateur serveur avec juste un port ouvert publiquement qui
est 80. Le reste est local.

Dan

Dernière modification par dancom (Le 10/07/2012, à 09:33)

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Ubuntu server 12.04.1

Haleth

Re : [résolu via un autre msg] IPtables suggestions (reformulation)

Y'a confusion, je crois: iptables est une interface pour netfilter
iptables est donc une composante de netfilter, et non l'inverse

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Ubuntu is an ancien African word which means "I can't configure Debian"

Because accessor & mutator are against encapsulation (one of OOP principles), good OOP-programmers do not use them. Obviously, procedural-devs do not. In fact, only ugly-devs are still using them.