Install And Configure Varnish Cache With Apache On Debian 7 Rumi, April 19, 2017 Varnish Cache is a web accelerator, sometimes referred to as a HTTP accelerator or a reverse HTTP proxy, that will significantly enhance your web performance. Varnish speeds up a website by storing a copy of the page served by the web server the first time a user visits that page. The next time a user requests the same page, Varnish will serve the copy instead of requesting the page from the web server. This means that your web server needs to handle less traffic and your website’s performance and scalability go through the roof. Varnish cache will increase the delivery of your web content by 80 % or more, depending on your architecture. Install Varnish Cache On Debian 7 Normally Varnish Cache is available on Debian default repositories. But i suggest you to use Varnish Cache repositories to get latest version of Varnish Cache. Run the following commands as root user to install Varnish Cache. # curl http://repo.varnish-cache.org/debian/GPG-key.txt | apt-key add - # echo "deb http://repo.varnish-cache.org/debian/ wheezy varnish-3.0" >> /etc/apt/sources.list # apt-get update # apt-get install varnish Configure Varnish Open up the file ‘/etc/default/varnish’ in any editor. # nano /etc/default/varnish Find the section called ‘Alternative -2’ and modify as shown below. ## Alternative 2, Configuration with VCL # # Listen on port 6081, administration on localhost:6082, and forward to # one content server selected by the vcl file, based on the request. Use a 1GB # fixed-size cache file. # DAEMON_OPTS="-a :80 \ -T localhost:6082 \ -f /etc/varnish/default.vcl \ -S /etc/varnish/secret \ -s malloc,256m" Save and exit the file. Now we have to tell to varnish where to look the webserver content. Open the file ‘/etc/varnish/default.vcl’. # nano /etc/varnish/default.vcl and make sure that you have the following lines in the file as shown below. backend default { .host = "127.0.0.1"; .port = "8080"; } Configure Apache We have told varnish that apache will be running on port 8080. But we haven’t change the port to 8080 and still apache listens on port 80. To change the port, edit up the following file. # nano /etc/apache2/ports.conf Find the following lines, NameVirtualHost *:80 Listen 80 Change them to look like below. NameVirtualHost 127.0.0.1:8080 Listen 127.0.0.1:8080 Save and close the file. Also edit the file ‘/etc/apache2/sites-available/default’, # nano /etc/apache2/sites-available/default Change the port to 8080. <VirtualHost *:8080> ServerAdmin webmaster@localhost Save and exit file. Restart apache and varnish services to take effect the saved changes. # /etc/init.d/apache2 restart # /etc/init.d/varnish restart And you’re done. It should be working. Src: https://www.unixmen.com/install-and-configure-varnish-cache-for-apache-on-debian-7/ Related Administrations Configurations (Linux) DebianVarnish
Tightvnc setup on Linux Mint January 16, 2017 sudo apt-get install tightvncserver cd ~/.vnc ls nano (or your favorite text editor.) xstartup. edit anything you need to. Then run: tightvncserver Go to your other computer. Run a vnc viewer. And enter in your IP like- <vncserverIP>:1 Related Read More
Wget, Apt and Git behind proxy December 22, 2020 For Wget Add/Comment out below line(s) in file ~/.wgetrc or /etc/wgetrc: http_proxy = http://[Proxy_Server]:[port] https_proxy = http://[Proxy_Server]:[port] ftp_proxy = http://[Proxy_Server]:[port] For Apt Create a new configuration file named proxy.conf.sudo touch /etc/apt/apt.conf.d/proxy.conf Open the proxy.conf file in a text editor.sudo vi /etc/apt/apt.conf.d/proxy.conf Paste it as following: Acquire { HTTP::proxy “http://127.0.0.1:8080”; HTTPS::proxy… Read More
NTP Adjust date on Linux October 27, 2013December 8, 2013 If you want to set date/time on linux manually (instead of using synchronization like ntp) you may use the date command to do it. Login as root and run the following command, it will show you the current date/time. [root@servername ~]# date Output will be like Tue Aug 23 12:32:22… Read More