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--- utilisateurs:hypathie:tutos:brouillon-bac-a-sable-de-mes-mini-tutos [19/10/2014 13:48]
Hypathie [Test config]
+++ utilisateurs:hypathie:tutos:brouillon-bac-a-sable-de-mes-mini-tutos [06/12/2014 11:28]
Hypathie [Test config]
@@ Ligne 778: / Ligne 778: @@
 /sbin/iptables -F
 /sbin/iptables -X
-/sbin/iptables -t nat -F
-/sbin/iptables -t nat -X
-/sbin/iptables -P INPUT ACCEPT
-/sbin/iptables -P FORWARD ACCEPT
-/sbin/iptables -P OUTPUT ACCEPT
 /sbin/iptables -P INPUT DROP
 /sbin/iptables -P OUTPUT DROP
 /sbin/iptables -P FORWARD DROP
 /sbin/iptables -t nat -P PREROUTING ACCEPT
 /sbin/iptables -t nat -P POSTROUTING ACCEPT
 /sbin/iptables -t nat -P INPUT ACCEPT
 /sbin/iptables -t nat -P OUTPUT ACCEPT
 /sbin/iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
+##commenter / décommenter et adapter les quatre lignes suivantes pour ne pas mettre en place / mettre en place
+##un proxy transparent (squid)
+/sbin/iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j DNAT --to 192.168.0.1:3129
+/sbin/iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 3129
+/sbin/iptables -t mangle -A PREROUTING -p tcp --dport 3128 -j DROP
+/sbin/iptables -t mangle -A PREROUTING -p tcp --dport 3129 -j DROP
+#accepter l'interface lo
 /sbin/iptables -A INPUT -i lo -j ACCEPT
 /sbin/iptables -A OUTPUT -o lo -j ACCEPT
+#accepter le sous-réseau
 /sbin/iptables -A INPUT -i eth1 -j ACCEPT
 /sbin/iptables -A OUTPUT -o eth1 -j ACCEPT
+#permettre le passage entre les deux interfaces eternet de la passerelle
 /sbin/iptables -t filter -A FORWARD -i eth1 -o eth0 -s 192.168.1.0/24 -d 0.0.0.0/0 -p tcp -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT
 /sbin/iptables -t filter -A FORWARD -i eth0 -o eth1 -s 0.0.0.0/0 -d 192.168.1.0/24 -p tcp -m state --state ESTABLISHED,RELATED -j ACCEPT
 /sbin/iptables -t filter -A FORWARD -p icmp -j ACCEPT
+#accepter le ping entre les réseaux locaux
 /sbin/iptables -t filter -A INPUT -p icmp -i eth0 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
 /sbin/iptables -t filter -A OUTPUT -p icmp -o eth0 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
 /sbin/iptables -t filter -A INPUT -p icmp -i eth1 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
 /sbin/iptables -t filter -A OUTPUT -p icmp -o eth1 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
-/sbin/iptables -t filter -A OUTPUT -o eth0 -p udp -m udp --dport 53 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
-/sbin/iptables -t filter -A INPUT -i eth0 -p udp -m udp --sport 53 -m state --state RELATED,ESTABLISHED -j ACCEPT
-/sbin/iptables -t filter -A OUTPUT -o eth1 -p udp -m udp --dport 53 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
-/sbin/iptables -t filter -A INPUT -i eth1 -p udp -m udp --sport 53 -m state --state RELATED,ESTABLISHED -j ACCEPT
-/sbin/iptables -t filter -A OUTPUT -o eth0 -p tcp -m multiport --dports 80,443,8000 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
-/sbin/iptables -t filter -A INPUT -i eth0 -p tcp -m multiport --sports 80,443,8000 -m state --state RELATED,ESTABLISHED -j ACCEPT
-/sbin/iptables -A OUTPUT -o eth1 -p tcp -m multiport --dports 80,443,8000 -j ACCEPT
-/sbin/iptables -A INPUT -i eth1  -p tcp -m multiport --sports 80,443,8000 -j ACCEPT
 /sbin/iptables -A OUTPUT -p icmp --icmp-type 0 -j ACCEPT
 /sbin/iptables -A INPUT -p icmp --icmp-type 0 -j ACCEPT
 /sbin/iptables -A FORWARD -p icmp --icmp-type 0 -j ACCEPT
 /sbin/iptables -A INPUT -p icmp --icmp-type 3/4 -j ACCEPT
 /sbin/iptables -A OUTPUT -p icmp --icmp-type 3/4 -j ACCEPT
 /sbin/iptables -A FORWARD -p icmp --icmp-type 3/4 -j ACCEPT
 /sbin/iptables -A FORWARD -p icmp --icmp-type 3/3 -j ACCEPT
 /sbin/iptables -A OUTPUT -p icmp --icmp-type 3/3 -j ACCEPT
 /sbin/iptables -A INPUT -p icmp --icmp-type 3/3 -j ACCEPT
 /sbin/iptables -A FORWARD -p icmp --icmp-type 3/1 -j ACCEPT
 /sbin/iptables -A INPUT -p icmp --icmp-type 3/1 -j ACCEPT
 /sbin/iptables -A OUTPUT -p icmp --icmp-type 3/1 -j ACCEPT
 /sbin/iptables -A INPUT -p icmp --icmp-type 4 -j ACCEPT
 /sbin/iptables -A OUTPUT -p icmp --icmp-type 4 -j ACCEPT
 /sbin/iptables -A FORWARD -p icmp --icmp-type 4 -j ACCEPT
 /sbin/iptables -A INPUT -p icmp --icmp-type 8 -m limit --limit 2/s -j ACCEPT
 /sbin/iptables -A INPUT -p icmp --icmp-type 8 -j LOG --log-prefix "ICMP/in/8 Excessive: "
 /sbin/iptables -A INPUT -p icmp --icmp-type 8 -j DROP
 /sbin/iptables -A OUTPUT -p icmp --icmp-type 8 -j ACCEPT
 /sbin/iptables -A FORWARD -p icmp --icmp-type 8 -j ACCEPT
 /sbin/iptables -A INPUT -p icmp --icmp-type 11 -j ACCEPT
 /sbin/iptables -A OUTPUT -p icmp --icmp-type 11 -j ACCEPT
 /sbin/iptables -A FORWARD -p icmp --icmp-type 11 -j ACCEPT
 /sbin/iptables -A INPUT -p icmp --icmp-type 12 -j ACCEPT
 /sbin/iptables -A OUTPUT -p icmp --icmp-type 12 -j ACCEPT
 /sbin/iptables -A FORWARD -p icmp --icmp-type 12 -j ACCEPT
 /sbin/iptables -A FORWARD -s 192.168.1.0/24 -d 192.168.0.0/24 -p icmp --icmp-type echo-request -j ACCEPT
 /sbin/iptables -A FORWARD -s 192.168.0.0/24 -d 192.168.1.0/24 -p icmp --icmp-type echo-reply -j DROP
 /sbin/iptables -A INPUT -p icmp -m limit -j LOG --log-prefix "ICMP/IN: "
 /sbin/iptables -A OUTPUT -p icmp -m limit -j LOG --log-prefix "ICMP/OUT: "
 /sbin/iptables -N syn_flood
 /sbin/iptables -I INPUT -p tcp --syn -j syn_flood
 /sbin/iptables -A syn_flood -m limit --limit 1/s --limit-burst 3 -j RETURN
 /sbin/iptables -A syn_flood -j LOG --log-prefix '[SYN_FLOOD] : '
 /sbin/iptables -A syn_flood -j DROP
+#autoriser la connexion avec les serveurs DNS
+/sbin/iptables -t filter -A OUTPUT -o eth0 -p udp -m udp --dport 53 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
+/sbin/iptables -t filter -A INPUT -i eth0 -p udp -m udp --sport 53 -m state --state RELATED,ESTABLISHED -j ACCEPT
+/sbin/iptables -t filter -A OUTPUT -o eth1 -p udp -m udp --dport 53 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
+/sbin/iptables -t filter -A INPUT -i eth1 -p udp -m udp --sport 53 -m state --state RELATED,ESTABLISHED -j ACCEPT
+#autoriser la navigation web
+/sbin/iptables -t filter -A OUTPUT -o eth0 -p tcp -m multiport --dports 80,443,8000 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
+/sbin/iptables -t filter -A INPUT -i eth0 -p tcp -m multiport --sports 80,443,8000 -m state --state RELATED,ESTABLISHED -j ACCEPT
+/sbin/iptables -A OUTPUT -o eth1 -p tcp -m multiport --dports 80,443,8000 -j ACCEPT
+/sbin/iptables -A INPUT -i eth1  -p tcp -m multiport --sports 80,443,8000 -j ACCEPT
+#Si le serveur cups est branché sur un ordinateur du réseau 192.168.0.0/24, par exemple sur 192.168.0.22
+# laisser décommenter les deux lignes suivantes :
+/sbin/iptables -A INPUT -i eth0 -s 192.168.0.22 -d 192.168.0.1 -p tcp --sport 631 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
+/sbin/iptables -A OUTPUT -o eth0 -s 192.168.0.1 -d 192.168.0.22 -p tcp --dport 631 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
+#créer une chaîne utilisateur pour les connexion ssh, les loguer et les accepter
 /sbin/iptables -t filter -N InComingSSH
 /sbin/iptables -I INPUT -i eth0 -s 192.168.0.0/24 -p tcp -m tcp --dport 22 -m conntrack --ctstate NEW,ESTABLISHED -j InComingSSH
 /sbin/iptables -A InComingSSH -j LOG --log-prefix '[INCOMING_SSH] : '
 /sbin/iptables -A InComingSSH -j ACCEPT
 /sbin/iptables -t filter -A OUTPUT -o eth0 -p tcp -m tcp --sport 22 -m conntrack --ctstate ESTABLISHED -j ACCEPT
 /sbin/iptables -t filter -A OUTPUT -o eth1 -p tcp -m tcp --dport 22 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT
 /sbin/iptables -t filter -A INPUT -i eth1 -s 192.168.0.0/24 -p tcp --sport 22 -m conntrack --ctstate ESTABLISHED -j ACCEPT
+#créer une chaîne utilisateur pour les connexions ftp, et les accepter
 /sbin/iptables -N ftp_in_accept
 /sbin/iptables -I INPUT -i eth0 -p tcp --sport 21 -m state --state ESTABLISHED,RELATED -j ftp_in_accept
 /sbin/iptables -I INPUT -i eth0 -p tcp --sport 20 -m state --state ESTABLISHED,RELATED -j ftp_in_accept
 /sbin/iptables -I INPUT -i eth0 -p tcp --sport 1024:65535 --dport 1024:65535 -m state --state ESTABLISHED -j ftp_in_accept
 /sbin/iptables -A ftp_in_accept -p tcp -j ACCEPT
 /sbin/iptables -A INPUT -i eth1 -p tcp --sport 21 -m state --state ESTABLISHED,RELATED -j ACCEPT
 /sbin/iptables -A INPUT -i eth1 -p tcp --sport 20 -m state --state ESTABLISHED,RELATED -j ACCEPT
 /sbin/iptables -I INPUT -i eth1 -p tcp --sport 1024:65535 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
@@ Ligne 981: / Ligne 911: @@
   * Et maintenant :
 <code root>systemctl start iptables.service</code>
 =====Example squid conf =====
@@ Ligne 1048: / Ligne 980: @@
 TCP_REFRESH_UNMODIFIED/304\\
+  * cache directories
 new cache directory :
 <code>/home/hypathie/cache/spool/squid3/</code>
+->
+<code>/mnt/proxy/cache/spool/squid3</code>
-logs directory :
+  *logs directory :
 <code>/var/log/squid3/access.log</code>
+->
+<code>/mnt/proxy/log/squid3/access.log</code>
+<code root>tail -f /mnt/proxy/log/squid3/access.log</code>
+ou
+<code root>tail -f /var/log/squid3/access.log</code>
 owner : proxy not root
+  *cache_store_log
+<code>/mnt/proxy/cache_store_log/store.log</code>
+->
 <code>/home/hypathie/cache/spool/cache_store_log/store.log</code>
+  * cache.log
 <code>/var/log/squid3/cache.log</code>
+->
+<code>/mnt/proxy/log/squid3/cache.log</code>
 only "TCP_MISS/200" never "TCP_HIT"\\
@@ Ligne 1193: / Ligne 1144: @@
 refresh_pattern -i \.gif$ 10080 150% 43200 ignore-no-store override-expire override-lastmod ignore-reload ignore-no-cache ignore-must-revalidate
 refresh_pattern -i \.flv$ 10080 150% 43200 ignore-no-store override-expire override-lastmod ignore-reload ignore-no-cache ignore-must-revalidate
-refresh_pattern -i \.js$ 10080 150% 43200 gnore-no-store override-expire override-lastmod  ignore-reload ignore-no-cache ignore-must-revalidate
+refresh_pattern -i \.js$ 10080 150% 43200 ignore-no-store override-expire override-lastmod  ignore-reload ignore-no-cache ignore-must-revalidate
 refresh_pattern -i \.pdf$ 10080 90% 43200 ignore-no-store override-expire override-lastmod ignore-reload ignore-no-cache ignore-must-revalidate
 refresh_pattern -i \.art$ 10080 150% 43200 ignore-no-store override-expire override-lastmod ignore-reload ignore-no-cache  ignore-must-revalidate
@@ Ligne 1273: / Ligne 1224: @@
 #
 </code>

utilisateurs/hypathie/tutos/brouillon-bac-a-sable-de-mes-mini-tutos.txt · Dernière modification: 10/03/2016 18:45 par Hypathie

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