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How Tos, Tutorials, Tips and Tricks by ,,,,,, in, Mission To configure squid for simple proxying without caching anything. Use Cases • When you want to have control on what people browse on your lan. • When number of machine is more than the number of IP addresses you can afford to buy.
• When you want to help this holy world in saving some IPV4 addresses 😛 Assumptions • You have a machine connected directly to internet that you are going to use as a proxy server for other machines on your network. • The machines on your network are using 192.168.0.0/16 as private address space. You can use anyone/multiple address spaces of the available but for this howto we assume 192.168.0.0/16 as the local network. • The local IP address of the machine which will run squid proxy server is 192.168.36.204. Download Disney Store Application Form. You can have any IP, but for this howto we assume this. How to proceed First of all ensure that you have squid installed. After installing squid, you need to set access control in squid configuration file which resides in /etc/squid by default.
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Open /etc/squid/squid.conf and add/edit following lines according to your preferences. Few lines already exist in the configuration file, you can add the rest.
# The port on which squid will listen for requests http_port 8080 # If 'cgi-bin' or '?' Is in query, squid should not check with neighbours'/parents' cache # and should go to target web-server. Hierarchy_stoplist cgi-bin? # If url contains 'cgi-bin' or '?' , then it must not be cached acl QUERY urlpath_regex cgi-bin? Cache deny QUERY acl apache rep_header Server ^Apache broken_vary_encoding allow apache # Absolute path to squid access log. Access_log /var /log /squid /access.log squid refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern.
Hello, I am from a school division and we have squid boxes running in each of our schools. We also use the proxies for logging. We have a firewall that does our content filtering, and it filters based on the IP address from the requested IP (the proxy server). Is it possible to setup a single squid server that has two IP address and have have two instances of squid running (one for students and one for teachers). What we want is the filtering for students and teachers to be different based on the IP address of the squid server.
What my problem is that if I have students pointing to proxy A (with IP 10.1.1.31) and teachers to proxy B (with IP 10.1.1.32) and proxy B isn’t being filtered on our firewall, the students can still get the unfiltered content from proxy B even though they are pointing to proxy A. I have tried setting the http_port setting to Proxy A config file (with eth0 being 10.1.1.31): http_port 10.1.1.31:8080 Proxy B config file (with eth1 being 10.1.1.32): http_port 10.1.1.32:8081 I have tried some acl configs with the http_access without any success. Any suggestions? Hi, It depends on the location of firewall.
Is it between students/teachers and the proxy and between proxy and internet. Because if its in between proxy and internet, the above configuration is not going to help at all since the outgoing IP address will be same for both. Anyways, one possible solution is that you create four aliases on your network interface. Two for incoming traffic and two for outgoing traffic and use iptables to masquerade the traffic such that Teachers ->Interface Alias 1 ->squid ->Interface Alias 3 ->Firewall Students ->Interface Alias 2 ->squid ->Interface Alias 4 ->Firewall Since all these interfaces will have different IP address, I think there won’t be any issues. Hi, Can I setup a proxy server on the same network.