Description (from man page) tw_cli(8) is a Command Line Interface Storage Management Software for 3ware ATA RAID Controller(s). It provides controller, logical unit and drive management. tw_cli can be used in both interactive and batch mode, providing higher-level API (Application Programming Interface) functionalities. Installing echo -e “\n# 3ware raid adapter\ndeb http://hwraid.le-vert.net/debian stretch main” >> /etc/apt/sources.list…
Installing Elasticsearch (6.x) on Debian Download and install the public signing key: wget -qO – https://artifacts.elastic.co/GPG-KEY-elasticsearch | apt-key add – Installing the ‘apt-transport-https’ package before proceeding: apt-get install apt-transport-https Adding the repository definition to ‘/etc/apt/sources.list’ echo -e “\n# Elasticsearch\ndeb https://artifacts.elastic.co/packages/6.x/apt stable main” >> /etc/apt/sources.list Before installing elasticsearch, we need openjdk: apt-get install openjdk-8-jdk Installing elasticsearch:…
The HTTP/2 protocol: HTTP/2 is the evolution of the world’s most successful application layer protocol, HTTP. It focuses on making more efficient use of network resources. It does not change the fundamentals of HTTP, the semantics. There are still request and responses and headers and all that. So, if you already know HTTP/1, you know…
If you have some problems with package updates and apt-get return the message ‘The following packages have been kept back’ means that the packages have been retained and there are newer versions of the listed packages, which for some reason cannot be installed. (unfulfilled or changed or new dependencies) The solution: apt-get dist-upgrade -u Example:…
What is TFO ? In computer networking, TCP Fast Open (TFO) is an extension to speed up the opening of successive Transmission Control Protocol (TCP) connections between two endpoints. It works by using a TFO cookie (a TCP option), which is a cryptographic cookie stored on the client and set upon the initial connection with…