![]() In my example I used a 2811 router running IOS 15.1(4)M6. ![]() I do have to mention that there are some slight differences between IOS 12.4 and IOS 15.x.Ĭonfiguration-wise its the same but there are a few more show commands on IOS 15.x. What are the best SquidMan alternatives A list based on our community, research Privoxy, FreeProxy, ManageEngine EventLog Analyzer, Artica Proxy, 3proxy, CCProxy, and PHP-Proxy. I will show you what I mean once we look at the wireshark captures. It also doesnt matter much what IP address you pick for the inner IP address since it wont be used. Save your configuration and exit, we need to create the GRE interface. The remaining lines are to enable WCCP, configure the IP address of the Cisco router and to use GRE. I did this so the error message that I showed you earlier doesnt show up in the log anymore. Make sure to remove the proxy server settings from your computer before you continue. We now know that we can reach a webserver on the Internet and that squid is checking its cache to see if it can serve the webpage.Īnyway we verified that squid is working with its default settings. This is a good moment to test a few thingswe can request a webpage from the proxy server to check if squid is working. This message doesnt cause any errors but it does fill your log. ![]() If you didnt configure a hostname it will spam your log with this message. Just to be sure, you should check if your version supports WCCP. In my example I used Linux CentOS 6.5 but the configuration on Ubuntu or any other Linux distribution is pretty much the same.ġ11111111111111111111111111111Its a good thing for security but it can be a pain when you are troubleshooting. The important part here is that the source IP address of this packet is the IP address of the host on the Internet, NOT the proxy server From the hosts perspective, it thinks that it is talking directly to the webserver and it has no idea that there is a proxy server in the network. Once this process is done, it can serve the webpage to the host. The proxy server will check its cache and see if it has served the requested webpage before. Normally GRE is used when the proxy server is on another subnet, when the proxy server is on the same subnet you can also use layer 2 redirection. The router will forward the TCP SYN from the host to the proxy server. The squid proxy server will announce itself to the router using UDP port 2048 and the router will respond. The router is called the WCCP server and the proxy is called the WCCP client. Its also used as a hello message so the router knows when the proxy is down. The proxy server will tell the router that it is alive and ready to serve webpages. Configuration-wise its the same but there are a few more show commands on IOS 15.x. I do have to mention that there are some slight differences between IOS 12.4 and IOS 15.x. Squid is a Unix-based proxy server that caches Internet content closer to a requestor than its original point of origin. So I dont report how to add as trusted the certificate squid-proxy.crt.Īlternatively if you need to ignore certificates in SSL2 (trust unconditionally all certificates).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |