Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Squid proxy is used by various organisation and internet providers to reduce bandwidth and to increase response time.
This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Squid Proxy Server on an Ubuntu 18.04 (Bionic Beaver) server.
Install Squid Proxy Server on Ubuntu 18.04 LTS Bionic Beaver
Step 1. First make sure that all your system packages are up-to-date by running these following apt-get commands in the terminal.
sudo apt-get update sudo apt-get upgrade
Step 2. Installing Squid Proxy on Ubuntu 18.04 LTS.
Squid proxy package is available from the Ubuntu repositories. It can be installed by running the command:
sudo apt install squid
Step 3. Configure Squid Proxy.
First, you’ll need to do a basic configuration before you can use the Squid Proxy server:
nano /etc/squid/squid.conf
# Recommended minimum configuration: auth_param basic program /usr/lib/squid/ncsa_auth /etc/squid/squid_passwd acl ncsa_users proxy_auth REQUIRED http_access allow ncsa_users acl manager proto cache_object acl localhost src 127.0.0.1/32 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl SSL_ports port 9001 # webmin acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access deny all http_port 3128 forwarded_for off request_header_access Allow allow all request_header_access Authorization 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 visible_hostname wpcademy.com
Step 4. Create our authentication file which Squid can use to verify for user authentications:
#htpasswd -b /etc/squid/squid_passwd username password
Example:
htpasswd -b -c /etc/squid/squid_passwd intan ramona
After making changes to the config file, save the file and restart the squid server service to effect the changes using the following command entered at a terminal prompt:
sudo systemctl restart squid
Congratulation’s! You have successfully installed Squid. Thanks for using this tutorial for installing Squid Proxy Server on your Ubuntu 18.04 LTS Bionic Beaver. For additional help or useful information, we recommend you to check the official Squid website.
