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proxy server

Question: How do I upgrade my FreeBSD server and ports tree using our proxy server, which requires username and password based authentication?
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How To Secure Apache Proxy Server (mod_proxy)

Q. I've proxy (mod_proxy) enabled for Apache under Debian Linux 4.0 server. I'd like to use this to improve performance, but I don't want an open proxy that can be used by anyone on the Internets? How do I secure my proxy as limiting access is essential as I'm using a forward proxy?
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FreeBSD Install Nginx Webserver

Q. How do I install Nginix websever under FreeBSD operating systems?
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Linux Disabling Squid Proxy Server

Q. How do I disable Squid Proxy Serer under CentOS Linux operating system so that I can directly connect to the internet?
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Squid Block any Domain Name Accessing the Internet

Q. How do I block any website accessing the Internet using squid proxy server?

A. You can simply use squid ACL to block access to any web site. There are 3 steps:

#1. Create a text file with blocked domain name list such as baddomain1.com, mail.yahoo.com, gmail.com and so on

#2. Define Acl

#3. Restart squid

First, create a file called /etc/squid/blocked.domains.acl
# vi /etc/squid/blocked.domains.acl
Append domain names,

Save and close the file. Open squid.conf file:
# vi /etc/squid/squid.conf
Create acl called blockeddomain:
acl blockeddomain dstdomain "/etc/squid/blocked.domains.acl"
Deny http access, enter:
http_access deny blockeddomain
Close and save the file. Restart squid proxy server:
# /etc/init.d/squid restart

How do I determine or retrieve visitor's IP address using PHP server side programming under Unix/Windows operating systems?
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