Here i will write about my frequent problems with the systems.
tmux is a terminal multiplexer: it enables a number of terminals (or windows), each running a separate program, to be created, accessed, and controlled from a single screen. tmux may be detached from a screen and continue running in the background, then later reattached.
Varnish does not support SSL. How can we solve this: with Nginx.
MySQLTuner is a script written in Perl that will assist you with your MySQL configuration and make recommendations for increased performance and stability.
Sometimes in some cases a customer asks us not to know that web server we are using. To avoid this in nginx is an extension called Headers More. This article will explain how to install.