Solved

Is it possible to use a web proxy only as a caching source

Posted on 2015-02-16
3
170 Views
Last Modified: 2015-02-16
Is it possible to use a web caching proxy only a s a caching source for internet access.

I need this solution to really lockdown clients to special informations in the internet. So the idea is to see the informations and store them on a caching server where the clients access.

I thought to use squid but i am open minded. Does someone know if this is possible.
Web filter is not a solution for this scenario.
0
Comment
Question by:Wilder_Admin
3 Comments
 
LVL 37

Expert Comment

by:bbao
ID: 40613316
mmm... caching source is just what a web proxy does, anything else a proxy can do? :)
0
 
LVL 62

Accepted Solution

by:
btan earned 500 total points
ID: 40613593
sure that squid should be able to fulfill and it is basically the same as the usual proxying on the gateway. Due to the importance of being the "middleman btw the internal and external, we should use squid's internal configuration and only bind it to the internal interface(s), not letting the outside world attempt to use it as a proxy to get at your internal LAN. It supports ACL's (Access Control Lists) built into the squid.conf file, allowing you to lock down access by names, IP’s, networks, time of day, actual day. One quick example to prevent anyone from using Squid to probe your internal network.

E.g. requests from 10.0.0.0/24 forwarded with src address 10.1.0.1,
E.g.  specific 10.0.2.0/24 forwarded with src address 10.1.0.2
E.g. any others will be forwarded with src address 10.1.0.3.

acl ipA src 10.0.0.0/24
acl ipB 10.0.2.0/24

tcp_outgoing_address 10.1.0.1 ipA
tcp_outgoing_address 10.1.0.2 ipB
tcp_outgoing_address 10.1.0.3

we can further this to use IPTables to accept all HTTP requests coming from our Squid user, and redirect all others as transparent or restrict to certain ip ranges - more info in tis wiki https://wiki.archlinux.org/index.php/squid

another possible candidate is zeroshell that does even more - http://www.zeroshell.org/proxy-antivirus/

but as in all proxy caveat, the proxy is able to capture these web requests, only if it is configured as a network gateway, and all client Internet traffic goes through it and even to lockdown browser to specific proxy if possible as policy.
0
 
LVL 8

Author Closing Comment

by:Wilder_Admin
ID: 40613597
Thanks that was exactly the information i needed
0

Featured Post

Ransomware-A Revenue Bonanza for Service Providers

Ransomware – malware that gets on your customers’ computers, encrypts their data, and extorts a hefty ransom for the decryption keys – is a surging new threat.  The purpose of this eBook is to educate the reader about ransomware attacks.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
apply ddos protection on all network interface 2 114
liboauth-php x oauth-1.2.3 3 70
Public IP Address Amazon Servers 2 56
nipper studio 2 44
Read about achieving the basic levels of HRIS security in the workplace.
Examines three attack vectors, specifically, the different types of malware used in malicious attacks, web application attacks, and finally, network based attacks.  Concludes by examining the means of securing and protecting critical systems and inf…
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question