Squid Proxy Server on RHEL introduces Squid, a free and open-source proxy server software that provides caching, authentication, bandwidth management, and web filtering capabilities. It discusses configuring Squid on Red Hat Linux including installing packages, editing configuration files, starting services, and testing the proxy functionality. Browser and client settings are also covered to allow systems to route traffic through the Squid proxy server.

1. Squid Proxy Server on RHEL

8. Snapshots of Proxy Server Configuration

9. Open Squid-configuration file

10. The configuration file has been opened. Allowing client to access squid services Blocking sites in squid-block.acl

11. Check squid services on or not

12. Starting Squid Verify if port 3128 open

13. Open iptables file

14. ip-tables file opened Append this line so that ip-tables allow access to proxy server

15. Enable Firewall

16. Restart ip-tables based Firewall

17. Create Squid-block.acl

18. Squid-Block.acl file opened Enlist websites you want to block

19. In edit go to preferences Click on settings Browser Settings/Client Configuration

20. Set proxy ip addr & port as 3128

21. Client Searching rediff.com Blocking Sites…. Access Denied

25. Creating user name and password # htpasswd /etc/squid/passwd user1 Step # 1: Create a username/password

27. # chmod o+r /etc/squid/passwd

28. Step # 2: Locate ncsa_auth authentication helper # rpm -ql squid | grep ncsa_auth

31. The REQURIED term means that any authenticated user will match the ACL named ncsa_users Also find out ACL section and append/modify: acl ncsa_users proxy_auth REQUIRED http_access allow ncsa_users

32. Authentication Enter user name and password.

34. User can access internet only between 17:00-18:00 on wed