Configure Varnish (TM) for PrestaShop
NOTE: The steps below assume that PrestaShop is already running at the root URL of the server, such as at http://prestashop.example.com/, and that Varnish ™ is enabled. Varnish ™ is disabled by default, but you can enable it by following the instructions in our Varnish ™ guide.
Download the different files used in the example:
Follow the steps below to configure PrestaShop with Varnish ™:
Connect to the server via SSH.
Back up the original Varnish ™ configuration file:
$ sudo cp installdir/varnish/etc/varnish/default.vcl installdir/varnish/etc/varnish/default.vcl.backup
Add the PrestaShop-specific Varnish ™ configuration by downloading the corresponding file and copying it to the correct location:
$ sudo cp prestashop.vcl installdir/varnish/etc/varnish/default.vcl $ sudo sed -i 's/port\s*=\s*"[^"]*"/port = "80"/g' installdir/varnish/etc/varnish/default.vcl
Varnish ™ and PrestaShop are now configured.
IMPORTANT: Varnish ™ is connected to Apache locally so other applications like phpMyAdmin or phpPgAdmin could become public. Find out how to block these applications.
Next, proceed to test and activate the Varnish ™ service as described below:
Restart the Varnish ™ service:
$ sudo installdir/ctlscript.sh restart varnish
Open port 81 in the server firewall. Refer to the FAQ for instructions.
Check if the website is being served properly by Varnish ™ on port 81, by browsing to http://localhost:81.
If Varnish ™ is working correctly, switch the Apache and Varnish ™ ports and activate Varnish ™ on port 80:
$ cd installdir $ sudo sed -i 's/^\s*Listen .*$/Listen 81/g' apache2/conf/httpd.conf $ sudo sed -i 's/\:80/\:81/g' apache2/conf/bitnami/bitnami.conf $ sudo sed -i 's/at port.*"/at port 81"/g' apache2/scripts/ctl.sh $ sudo sed -i 's/\:80/\:81/g' apps/*/conf/httpd-vhosts.conf $ sudo sed -i 's/=80/=81/g' properties.ini $ sudo sed -i 's/port\s*=\s*"[^"]*"/port = "81"/g' varnish/etc/varnish/default.vcl $ sudo sed -i 's/VARNISH_PORT=.*$/VARNISH_PORT=80/g' varnish/scripts/ctl.sh
Restart the services:
$ sudo installdir/ctlscript.sh restart
Remove the firewall rule added for port 81.
IMPORTANT: Varnish ™ does not cache content if the Apache PageSpeed module is enabled. Find out how to disable this module.
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