Screen is useful tool but it does have some slight bugs such as when you use the SU command to switch to another user and attempt to use screen you will most probably receive a error message similar to the following. (more…)
Tag: unix
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What is a server
A server is a computer designed for a specific task such as running a website, a server tends to be powered up more often compared to a regular computer with most servers running 24/7. Servers are a major part of our everyday live, the internet is a collection of hundreds of thousands of servers all working together performing various tasks. (more…)
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Creating an SSH connection using password authentication
SSH is a secure shell command line technology allowing a user to connect to a second computer and perform many tasks securely. I have written a post which is found here which tells out all about the SSH technology. In this post I am showing you how to connect to a SSH server in Windows and Linux operating systems using password authentication, if you are using public/private key authentication please read this post. I would recommend everyone to use public/private key authentication because it increases security dramatically, a SSH client can on connect to the server if they have the correct private key and a private key can be encrypted using a password increasing security even further. (more…)
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What is SSH (secure shell)?
SSH short for secure shell is a network protocol allowing communications between two computers, it is natively found on Linux based operating systems and used to remotely control computers and server via a command line interface. SSH was created to replace older insecure software such as telnet, telnet lacked encryption allowing anyone to intercept the data transfer. For example it was possible someone could steal the username and password used which would give them remote access to the system. (more…)
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Why a VPS (virtual private server)?
VPS are a cheap and efficient way of owning a server without having to maintain the physical hardware, infrastructure and costs involved when renting server space. You can purchase a new VPS from most providers and within 15 minutes you can be installing your software and services. A VPS is just like owning a physical server you can install and do what you want with it. (more…)
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What is a VM (virtual machine) or VPS (virtual private server)
I’m going to talk about virtual machines (VM) before I go onto virtual private servers (vps), to understand what a vps is you need to understand what a vm is as they are very similar (practically the same thing). A VM is a virtualized (virtual) operating system running inside a master operating system, for example we have a physical computer running windows XP this is known as the master, we install virtualization software which allows us to create virtual computers inside the master, multiple virtual machines can be installed on a single master. (more…)