<\/span><\/h3>\n\n\n\nConfigure Varnish to listen at port 80, from the default of 6081. Edit varnish.service with nano.<\/p>\n\n\n\n
sudo nano \/usr\/lib\/systemd\/system\/varnish.service<\/code><\/pre>\n\n\n\nChange the line beginning with ExecStart from port 6081 to port 80, then save and close the file. The line should like like this when finished.<\/p>\n\n\n\n
ExecStart=\/usr\/sbin\/varnishd -a :80 -f \/etc\/varnish\/default.vcl -s malloc,256m<\/code><\/pre>\n\n\n\nSave and close the file when you’re done.<\/p>\n\n\n\n
<\/span>Start Varnish<\/span><\/h3>\n\n\n\nNow that everything is configured, it’s time to start Varnish Cache. You can do this by running the following command:<\/p>\n\n\n\n
sudo systemctl daemon-reload\n\nsudo systemctl restart varnish<\/code><\/pre>\n\n\n\nThis will start the Varnish Cache service.<\/p>\n\n\n\n
<\/span>Test Varnish Cache<\/span><\/h3>\n\n\n\nYou can also use the curl<\/code> command to request a page from your web server:<\/p>\n\n\n\ncurl -I http:\/\/server-IP<\/code><\/pre>\n\n\n\nThe output should show you whether the request was served from the cache or from the backend server.<\/p>\n\n\n\n
<\/span>Conclusion<\/span><\/h3>\n\n\n\nYou have successfully installed and configured Varnish Cache for Apache on CentOS. By caching frequently accessed content, Varnish Cache can significantly improve the performance of your web server, making it faster and more responsive for your users.<\/p>\n","protected":false},"excerpt":{"rendered":"
Varnish Cache is a popular caching solution that can be used to speed up the delivery of content on your web server. It works by caching frequently accessed content in memory so that subsequent requests can be served from the cache instead of being processed by the web server. In<\/p>\n","protected":false},"author":8,"featured_media":3304,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3],"tags":[304,331,328,329,327,330,332],"class_list":["post-3300","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorial-how-to","tag-apache-on-centos","tag-configure-varnish-cache","tag-install-varnish-cache","tag-start-varnish","tag-varnish-cache","tag-varnish-cache-centos","tag-varnish-centos"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.virtono.com\/community\/wp-content\/uploads\/2023\/04\/Install-Varnish-Cache-for-Apache-on-CentOS.png?fit=600%2C330&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p7ISfL-Re","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":1311,"url":"https:\/\/www.virtono.com\/community\/tutorial-how-to\/varnish-web-accelerator\/","url_meta":{"origin":3300,"position":0},"title":"Varnish Web accelerator","author":"Shreyash Sharma","date":"January 12, 2018","format":false,"excerpt":"Varnish\u00a0is a web accelerator (reverse proxy), which provides relief for the actual web server (the backend).\u00a0It has been designed from the ground up just for this use, unlike traditional proxies (eg Squid). 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