Procedures of setting a router with cache function are as follows:
Router section:
1. install dnsmasq
2. iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
3. modify /etc/network/interfaces with following lines
auto eth0 static
iface eth0 inet static
address 192.168.18.1
netmask 255.255.255.0
network 192.168.18.0
broadcast 192.168.18.255
4. echo “1” > /proc/sys/net/ipv4/ip_forward or modify /etc/sysctl.conf
5. install pppoeconf for pppoe connection
6. install apache http://fusionstrike.com/2012/installing-apache2-raspberry-pi-debian
Cache session：
1. install squid
2. configure squid.conf
3. iptables -t nat -A PREROUTING -i eth0 -p tcp -m tcp –dport 80 -j REDIRECT –to-ports 3128 # http proxy transparency setting
Connecting to other proxy servers for breaking great firewall:
1. configure squid.acl.gfwed.config # used to distinguish which websites need to other proxy servers.
2. configure squid_cache_peers.conf # set which other proxy servers we are connecting to.
3. configure stunnel.conf # set which other proxy servers we are connecting to.
Other proxy server side’s setting is as follows:
1. install squid
2. install stunnel4
3. configure stunnel4.conf
4. create stunnel.pem for stunnel