We perfectly support varnish on all our automated cloud node setups and also on our DirectAdmin servers. Our very optimized config will give you max performance guaranteed :)
Please contact our support team to activate Varnish on your server!
Magento2 settings required
Magento 2 has built-in support for Varnish, we just need to tweak the settings:
bin/magento setup:config:set -n --http-cache-hosts=127.0.0.1:6081
magerun2 config:set system/full_page_cache/caching_application 2
magerun2 config:set system/full_page_cache/ttl 86400
magerun2 config:set system/full_page_cache/varnish/access_list 127.0.0.1,localhost
magerun2 config:set system/full_page_cache/varnish/backend_host 127.0.0.1
magerun2 config:set system/full_page_cache/varnish/backend_port 8080
Drupal settings required
We have good experience with: https://www.drupal.org/project/adv_varnish
Other CMS
Contact us for advice