How To Use SFTP to Securely Transfer Files with a Remote Server Introduction FTP, the File Transfer Protocol, was a popular, unencrypted method of transferring files between two remote systems. As of 2022, it has been deprecated by most modern software due to a lack of security, and can mostly only be used in legacy applications. SFTP, which stands for Secure File Transfer Protocol, is a separate protocol packaged built into SSH that can implement FTP commands over a secure connection. Typically, it can act as a drop-in replacement in any contexts where an FTP server is still needed. In almost all cases, SFTP is preferable to FTP because of its underlying security features and ability to piggy-back on an SSH connection. Although SFTP is integrated into many graphical tools, this guide will demonstrate how to use it through its interactive command line interface. How to Connect with SFTP By default, SFTP uses the SSH protocol to authenticate and establish a secure connection. ssh @ If that works, exit back out by typing: exit sftp @ sftp -oPort=custom_port @
monitoring - How do I get the CPU temperature? - Ask Ubuntu How to Set Up SSH Keys on Ubuntu 18.04 Introduction SSH, or secure shell, is an encrypted protocol used to administer and communicate with servers. When working with an Ubuntu server, chances are you will spend most of your time in a terminal session connected to your server through SSH. In this guide, we’ll focus on setting up SSH keys for a vanilla Ubuntu 18.04 installation. SSH keys provide an easy, secure way of logging into your server and are recommended for all users. Step 1 — Create the RSA Key Pair The first step is to create a key pair on the client machine (usually your computer): ssh-keygen By default ssh-keygen will create a 2048-bit RSA key pair, which is secure enough for most use cases (you may optionally pass in the -b 4096 flag to create a larger 4096-bit key). After entering the command, you should see the following output: Output Generating public/private rsa key pair. Press enter to save the key pair into the .ssh/ subdirectory in your home directory, or specify an alternate path. The syntax is: mkdir -p ~/.ssh
How To Install Nginx on Ubuntu 14.04 LTS Introduction Nginx is one of the most popular web servers in the world and is responsible for hosting some of the largest and highest-traffic sites on the internet. It is more resource-friendly than Apache in most cases and can be used as a web server or a reverse proxy. In this guide, we'll discuss how to get Nginx installed on your Ubuntu 14.04 server. Prerequisites Before you begin this guide, you should have a regular, non-root user with sudo privileges configured on your server. When you have an account available, log in as your non-root user to begin. Step One — Install Nginx We can install Nginx easily because the Ubuntu team provides an Nginx package in its default repositories. Since this is our first interaction with the apt packaging system in this session, we should update our local package index before we begin so that we are using the most up-to-date information. sudo apt-get update sudo apt-get install nginx You will probably be prompted for your user's password. Conclusion
How To Create a Self-Signed SSL Certificate for Nginx in Ubuntu 16.04 Introduction TLS, or transport layer security, and its predecessor SSL, which stands for secure sockets layer, are web protocols used to wrap normal traffic in a protected, encrypted wrapper. Using this technology, servers can send traffic safely between the server and clients without the possibility of the messages being intercepted by outside parties. The certificate system also assists users in verifying the identity of the sites that they are connecting with. In this guide, we will show you how to set up a self-signed SSL certificate for use with an Nginx web server on an Ubuntu 16.04 server. Note: A self-signed certificate will encrypt communication between your server and any clients. A self-signed certificate may be appropriate if you do not have a domain name associated with your server and for instances where the encrypted web interface is not user-facing. Prerequisites Before you begin, you should have a non-root user configured with sudo privileges. Output sudo ufw app list
Initial Server Setup with Ubuntu 18.04 Introduction When you first create a new Ubuntu 18.04 server, there are a few configuration steps that you should take early on as part of the basic setup. This will increase the security and usability of your server and will give you a solid foundation for subsequent actions. Note: The guide below demonstrates how to manually complete the steps we recommend for new Ubuntu 18.04 servers. Step 1 — Logging in as Root To log into your server, you will need to know your server’s public IP address. If you are not already connected to your server, go ahead and log in as the root user using the following command (substitute the highlighted portion of the command with your server’s public IP address): Accept the warning about host authenticity if it appears. About Root The root user is the administrative user in a Linux environment that has very broad privileges. The next step is to set up an alternative user account with a reduced scope of influence for day-to-day work. You can see this by typing:
Tutorials Tutorial How To Automate Your Node.js Production Deployments with Shipit on CentOS 7 Shipit is a universal automation and deployment tool for Node.js developers. It features a task flow based on the popular Orchestrator package, login and interactive SSH commands through OpenSSH, and an extensible API... Tutorial How To Package and Publish a Snap Application on Ubuntu 18.04 Snap is a modern application packaging format with powerful sandboxing and security features, including file system isolation, automatic updates and integrated dependency management. In this tutorial, you will create ... Tutorial How To Install Linux, Nginx, MySQL, PHP (LEMP) Stack on CentOS 8 [Quickstart] In this tutorial, you’ll install a LEMP stack on a CentOS 8 server.
bash - Convert every pdf in the current directory to png - Unix & Linux Stack Exchange How To Set Up Multiple Domains on an Apache Web Server Introduction The Apache web server is a popular method for serving websites on the internet. As of 2019, it is estimated to serve 29% of all active websites and it offers robustness and flexibility for developers. Using Apache, an administrator can set up one server to host multiple domains or sites off of a single interface or IP by using a matching system. Each domain or individual site — known as a “virtual host” — that is configured using Apache will direct the visitor to a specific directory holding that site’s information. This is done without indicating that the same server is also responsible for other sites. In this guide, we will walk you through how to set up Apache virtual hosts on an Ubuntu 18.04 server. Prerequisites Before you begin this tutorial, you should create a non-root user. You will also need to have Apache installed in order to work through these steps. sudo apt update sudo apt install apache2 Step One — Create the Directory Structure Step Two — Grant Permissions
Pricing on DigitalOcean | Cloud server & storage pricing What forms of payment do you accept? We accept Visa, Mastercard, American Express, Discover, and PayPal. For additional payment options, including wire transfer, purchase orders, and ACH, please contact us. Note that when you add a card, we may send a temporary pre-authorization request to the issuing bank. This pre-authorization charge is immediately released by DigitalOcean but may take a few days to clear from your card depending on the bank. When will my card be charged? DigitalOcean billing cycles are monthly. Am I charged when I enter my credit card? No. Pre-authorization charge: When you add a card, we may send a preauthorization request to the issuing bank. Will taxes be included in my monthly invoice? We’re required by law to apply taxes in some countries. Why am I billed for powered off Droplets? When you power off your Droplet, you are still billed for it. How do I destroy my resources? Can I be notified if my bill exceeds a threshold? I got a $100 credit when I opened an account.
Everything you need to know about Tmux copy paste · rushiagr Jun 16, 2016 Copying from a Tmux session is something every Tmux user struggled with once. I’m listing out all the stuff I learnt in this blog. I tested everything on Mac OS X El Capitan. Know about your terminal The default terminal which comes with Mac is pretty limiting. Know about copy buffers When you do a Command+c, the stuff you copy is stored in your computer’s buffer, called ‘clipboard’ from where you can paste anywhere by doing a Command+v. You can always copy stuff into clipboard while usin Tmux. Tmux copy-paste - the defaults Well, the defaults in Mac are horrible. Tmux Vim-bindings for copying into tmux buffer Adding configuration described in this section will give you easier shortcuts for copy-pasting in Tmux. Copy from tmux buffer to system buffer (clipboard) In newer iTerm2, you need to enable one option in settings to copy a text into both tmux buffer and clipboard at the same time. Tmux copy with mouse drag! set -g mouse on But now I can’t do normal copy-paste with mouse!
Install PHP 7.4 FPM on Ubuntu 18.04 • It is always awesome when new versions of PHP come out so we can test the performance improvements! According to these benchmarks PHP 7.4 took around 500 ms of execution time for the same task that PHP 7.2 took over 650 ms to complete! Remember to test the new PHP 7.4 in a staging environment first ideally on a separate server. If you need help testing this feel free to get in touch. This tutorial will show you how to install PHP 7.4 on Ubuntu 18.04 and update the CLI path to use the new PHP version. Install PHP 7.4 php-fpm on Ubuntu 18.04 Start with adding the repository kindly provided by sury.org sudo apt-get install apt-transport-https -y sudo wget -O /etc/apt/trusted.gpg.d/php.gpg echo "deb stretch main" | sudo tee /etc/apt/sources.list.d/php.list Update your package list sudo apt-get update Install the PHP 7.4 packages for nginx and php-fpm functionality Update CLI to PHP 7.4 Test your current PHP CLI version php --version