Installing the Squid caching proxy on Red Hat Enterprise Linux (RHEL) 7 is a straightforward process, but your approach depends on whether your system is registered with a Red Hat subscription or if you are working in an offline, air-gapped environment.

RHEL 7 uses firewalld . You must allow traffic on Squid’s default port (3128): sudo firewall-cmd --permanent --add-port=3128/tcp sudo firewall-cmd --reload 💡 Key Tip: Dependencies

Navigate to the section and select Red Hat Enterprise Linux . Ensure the version is set to 7 . Search for squid under the "Packages" tab.

Download the architecture-specific version (usually x86_64 ). Method 4: Third-Party Repositories (Advanced)