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Category Archives: Proxy

Get IPV6 and unblock youtube facebook etc

Posted on February 12, 2013 by Muhamamd Zeeshan
No comments

Get IPV6 and unblock youtube facebook etc
In this video Muhammad Zeeshan explains how you can get ipv6 and unblock websites youtube facebook etc with it. Video also explain how you download and install freenet6 gogoc and use it.

Read more …

Categories: ipv6, Networking, Proxy, unblock, urdu_tutorials | Tags: facebook, get ipv6 free, ithut.net, my-t, Tutorials, unblock facebook, unblock youtube, unblock youtube in pakistan, Urdu Tutorials, youtube, zee.im

Squid content filtering: Block / download of music MP3, mpg, mpeg, exec files

Posted on January 24, 2013 by Muhamamd Zeeshan
No comments

Q. For security and to save bandwidth I would like to configure Squid proxy server such way that I do not want my users to download all of the following files:
MP3
MPEG
MPG
AVG
AVI
EXE

How do I configure squid content filtering?

A. You can use squid ACL (access control list) to block all these files easily.

How do I block music files using squid content filtering ACL?

First open squid.conf file /etc/squid/squid.conf:

# vi /etc/squid/squid.conf
Now add following lines to your squid ACL section:

acl blockfiles urlpath_regex "/etc/squid/blocks.files.acl"
You want display custom error message when a file is blocked:
# Deny all blocked extension
deny_info ERR_BLOCKED_FILES blockfiles
http_access deny blockfiles

Save and close the file. Read more …

Categories: Linux, Proxy | Tags: centos, Linux, rhel, squid

Install Squid Proxy Server on CentOS / Redhat enterprise Linux 5

Posted on January 24, 2013 by Muhamamd Zeeshan
No comments

Squid server is a popular open source GPLd proxy and web cache. It has a variety of uses, from speeding up a web server by caching repeated requests, to caching web, name server query , and other network lookups for a group of people sharing network resources. It is primarily designed to run on Linux / Unix-like systems. Squid is a high-performance proxy caching server for Web clients, supporting FTP, gopher, and HTTP data objects. Unlike traditional caching software, Squid handles all requests in a single, non-blocking, I/O-driven process. Squid keeps meta data and especially hot objects cached in RAM, caches DNS lookups, supports non-blocking DNS lookups, and implements negative caching of failed requests. Squid consists of a main server program squid, a Domain Name System lookup program (dnsserver), a program for retrieving FTP data (ftpget), and some management and client tools.

Install Squid on CentOS / RHEL 5

Use yum command as follows:
# yum install squid
Output:

Loading "installonlyn" plugin
Setting up Install Process
Setting up repositories
Reading repository metadata in from local files
Parsing package install arguments
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package squid.i386 7:2.6.STABLE6-4.el5 set to be updated
--> Running transaction check
Dependencies Resolved
=============================================================================
 Package                 Arch       Version          Repository        Size
=============================================================================
Installing:
 squid                   i386       7:2.6.STABLE6-4.el5  updates           1.2 M
Transaction Summary
=============================================================================
Install      1 Package(s)
Update       0 Package(s)
Remove       0 Package(s)
Total download size: 1.2 M
Is this ok [y/N]: y
Downloading Packages:
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing: squid                        ######################### [1/1]
Installed: squid.i386 7:2.6.STABLE6-4.el5
Complete!

Read more …

Categories: Linux, Proxy | Tags: centos, Linux, proxy, squid
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