67
edits
Changes
Jump to navigation
Jump to search
Line 18:
Line 18: − + − + − + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Features/Automatic Proxy Settings (view source)
Revision as of 20:28, 8 January 2013
, 20:28, 8 January 2013→PAC - Proxy Auto Config
access some network services.
access some network services.
In this entry you can learn a way of configuring a proxy server
In this entry you can learn a way of configuring automatic proxy server
for testing purposes.
(PAC and WPAD) for testing purposes.
For testing a proxy in XO you can go to: [http://wiki.sugarlabs.org/go/Features/Proxy_Settings Features/Proxy Settings]
For testing a proxy in XO you can go to: [http://wiki.sugarlabs.org/go/Features/Proxy_Settings#How_To_Test Features/Proxy Settings]
== Benefit to Sugar ==
See [[#Detailed Description|Detailed Description]].
== Scope ==
It's not directly related to XO, it's just a part for building an environment for automatic proxy testing in XO
== PAC - Proxy Auto Config ==
PAC method for proxy is very simple. You have to create a web-accessible
file with special syntax in which you include proxy server data. This example
works with Apache server. You can take a look to [http://wiki.sugarlabs.org/go/Features/Automatic_Proxy_Settings#Bibliography Bibliograpy]
for more info about PAC file configuration and installation in other webservers.
Steps:
* Install httpd web server:
yum install httpd
* Enable configuration override with htaccess
vim /etc/httpd/conf/httpd.conf
<Directory "/var/www/html">
...
#
# AllowOverride controls what directives may be placed in .htaccess files.
# It can be "All", "None", or any combination of the keywords:
# Options FileInfo AuthConfig Limit
#
AllowOverride None
...
</Directory>
Replace the line "AllowOverride None" with "AllowOverride All"
* Create a web enabled directory proxy
mkdir /var/www/html/proxy
* Create .htaccess file and the following content:
vim /var/www/html/proxy/.htaccess
AddType application/x-ns-proxy-autoconfig .pac
* Create PAC file and add the following content:
vim /var/www/html/proxy/proxy.pac
function FindProxyForURL(url, host) {
return "PROXY PROXY_SERVER_IP_OR_HOSTNAME:PORT";
}
* Set permissions for the directory proxy
chown -R apache.apache /var/www/html/proxy
chmod -R 755 /var/www/html/proxy
* Restart httpd web server
service httpd restart
* Test in your favorite browser
[[File:testproxyiceweasel-1.png]]
[[File:testproxyiceweasel-2.png|700px]]
== WPAD - Web Proxy Autodiscovery ==
Web Proxy Auto-Discovery Protocol, or WPAD, is a technology which aids a web browser in automatically detecting the location of a PAC file using DNS or DHCP.
A browser that supports both DHCP and DNS will first attempt to locate a PAC file using DHCP, and should a DHCP configuration not exist fail-over to DNS WPAD will occur. If neither are configured, a browser will fail open. [http://findproxyforurl.com/ Source]
== Bibliography ==
* [http://en.wikipedia.org/wiki/Web_Proxy_Autodiscovery_Protocol Web Proxy Autodiscovery Protocol]
* [http://findproxyforurl.com/ FindProxyForURL]
* [http://en.wikipedia.org/wiki/Proxy_auto-config Proxy Auto Config]