Linux Tutorials on the topic “linux”
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How to configure PureFTPd to use TLS sessions on CentOS 7
Author: Till Brehm • Tags: centos, ftp, linux, security • Comments: 0
This article explains how to configure PureFTPd to use TLS sessions on a CentOS 7 server. Plain FTP is an insecure protocol because all passwords and all data are transferred in clear text. By using TLS, the whole communication can be encrypted, thus making FTP much more secure.
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Virtual Hosting With PureFTPd And MySQL (Incl. Quota And Bandwidth Management) On CentOS 7.0
Author: Srijan Kishore • Tags: centos, ftp, linux • Comments: 7
This document describes how to install a PureFTPd server that uses virtual users from a MySQL database instead of real system users. This is much more performant and allows to have thousands of ftp users on a single machine. In addition to that I will show the use of quota and upload/download bandwidth limits with this setup. Passwords will be stored encrypted as MD5 strings in the database.
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How to setup HAProxy as Load Balancer for MariaDB on CentOS 7
Author: Muhammad Arul • Tags: centos, high-availability, linux, mysql • Comments: 10
In this tutorial, I will guide you trough the installation of a MariaDB Galera cluster on CentOS 7 which has an HAProxy load balancer in front. The total setup consists of 4 servers. I will use 3 CentOS 7 servers for the database nodes, 2 nodes will be active and 1 acts as the backup node. The fourth server will be used for the HAProxy load balancer. For the balance algorithm, we use leastconn (but you can use other algorithms).
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How to practically use your Linux terminal (four examples)
Author: Bill Toulas • Tags: centos, debian, linux, shell, suse, ubuntu • Comments: 6
While modern GNU/Linux distributions don't require any use of the terminal, or any knowledge of the bash to offer 100% of their functionality and usability, it is often the case that doing things from the terminal is preferred for a set of reasons.This post is aimed at the people who just want to perform practically useful tasks right from their terminal without having to learn much about command lines.
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How to install and run Android Apps (APKs) on Linux with Shashlik
Author: Bill Toulas • Tags: arch linux, debian, desktop, linux, ubuntu • Comments: 59
Shashlik is basically a set of software components that allow Linux users to install and run Android APKs right on their GNU/Linux distribution. Shashlik achieves that by using a stripped down version of Android instead of emulating one, which is nested inside the user session upon the launching of an installed Android application.
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How to setup HAProxy as Load Balancer for Nginx on CentOS 7
Author: Muhammad Arul • Tags: centos, high-availability, linux, nginx, server • Comments: 14
HAProxy or High Availability Proxy is an open source TCP and HTTP load balancer and proxy server software. In this tutorial, I will guide you trough the HAProxy installation and configuration for 3 servers, one load balancer, and two Nginx web servers. We will install HAProxy on a single server and then install Nginx web server on the other servers. HAProxy acts as a load balancer for the Nginx web servers.
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Passwordless encryption of the Linux root partition on Debian 8 with an USB key
Author: Ahmad • Tags: debian, linux, security • Comments: 9
In this article, an encrypted partition is opened using a secret key which is kept in an usb memory device. An automatic shell script is used to provide a secret key for encrypted volume at boot time.
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How to configure sudo for two-factor authentication using pam-radius on Ubuntu and CentOS
Author: nowen • Tags: centos, linux, security, ubuntu • Comments: 3
Attackers frequently use lost, stolen, weak or default credentials to escalate their privileges after they have infiltrated your network. While two-factor authentication can greatly reduce infiltration, there are other means of gaining entry such as malware. This tutorial shows how to add radius to sudo for Centos 7 and Ubuntu 14.04 for two-factor authentication with the WiKID Strong Authentication server.
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Run your own cloud: Installing OwnCloud 9 on Debian 8
Author: Neil Golden • Tags: debian, linux, server, storage, web server • Comments: 20
OwnCloud offers you the ability to run a cloud storage service that you administer and control yourself. The latest version, ownCloud 9.0, was released on March 8. Let's look at the process of installing ownCloud 9.0 on a system running Debian Jessie.
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How to Install and Configure MySQL Cluster on CentOS 7
Author: Muhammad Arul • Tags: centos, linux, mysql • Comments: 25
MySQL Cluster is designed to provide a MySQL compatible database with high availability and low latency. The MySQL Cluster technology is implemented through the NDB (Network DataBase) and NDBCLUSTER storage engines and provides shared-nothing clustering and auto-sharding for MySQL database systems. In the shared-nothing architecture, each of nodes has its own memory and disk, the use of shared storage such as NFS, SANs is not recommended and supported.