Status: Deprecated
This article covers a version of CentOS that is no longer supported. If you are currently operating a server running CentOS 6, we highly recommend upgrading or migrating to a supported version of CentOS.
Reason:
CentOS 6 reached end of life (EOL) on November 30th, 2020 and no longer receives security patches or updates. For this reason, this guide is no longer maintained.
See Instead:
This guide might still be useful as a reference, but may not work on other CentOS releases. If available, we strongly recommend using a guide written for the version of CentOS you are using.
Step 1 – Spin up a CentOS 6.3 x64 droplet
Step 2 – Install Squid
yum -y install squid chkconfig squid on
Step 3 – Setup Access Restrictions
Since this Squid proxy would allow anyone using it to make connections from your droplet’s IP address, you would want to restrict access to it.
You can register a free dynamic IP from services like noip.com
If you would like to use this Squid proxy from your phone, you would have to install a dynamic DNS update client.
You can use applications like Dynamic DNS Client for Android, or FreeDynPro for iOS.
Once you have a dynamic IP hostname, you can update it from your router at home, mobile device, or an API call.
This hostname should be added to /etc/squid/squid.conf. Edit the file and add your hostname (nyproxy1.no-ip.org in our case):
acl localnet src nyproxy1.no-ip.org
Setup a crontab that reloads Squid every hour, in case your IP address changes:
echo 0 */1 * * * service squid reload >> /var/spool/cron/root
Step 4 – Configure Squid Proxy
By default, Squid listens on port 3128. If you would like to use a different port, modify /etc/squid/squid.conf
http_port 3128
If you would like to browse through this Squid proxy and not have it detected as a proxy, setup anonymous settings by adding these lines to /etc/squid/squid.conf:
via off forwarded_for off request_header_access Allow allow all request_header_access Authorization allow all request_header_access WWW-Authenticate allow all request_header_access Proxy-Authorization allow all request_header_access Proxy-Authenticate allow all request_header_access Cache-Control allow all request_header_access Content-Encoding allow all request_header_access Content-Length allow all request_header_access Content-Type allow all request_header_access Date allow all request_header_access Expires allow all request_header_access Host allow all request_header_access If-Modified-Since allow all request_header_access Last-Modified allow all request_header_access Location allow all request_header_access Pragma allow all request_header_access Accept allow all request_header_access Accept-Charset allow all request_header_access Accept-Encoding allow all request_header_access Accept-Language allow all request_header_access Content-Language allow all request_header_access Mime-Version allow all request_header_access Retry-After allow all request_header_access Title allow all request_header_access Connection allow all request_header_access Proxy-Connection allow all request_header_access User-Agent allow all request_header_access Cookie allow all request_header_access All deny all
Step 5 – Start Squid proxy service
service squid start
Step 6 – Modify your browser’s proxy settings
Add your droplet’s IP address and port to your browser’s proxy settings.
Step 7 – Verify Squid proxy works
Navigate over to whatismyip.com
And you are all done!
By Bulat Khamitov
