Month: December 2022
How to Install Proxmox Mail Gateway on Debian 11
Introduction Proxmox Mail Gateway is an open-source email security solution that acts as a layer between users and your origin mail server. It helps eliminate incoming or outgoing spam or email threats. In addition, it comes with a user-friendly web-based management interface that allows you to control everything easily. This…
Read MoreAn OpenBSD E-Mail Server Using OpenSMTPD, Dovecot, Rspamd, and RainLoop
Introduction This tutorial demonstrates a full-featured email server running on OpenBSD using OpenSMTPD, Dovecot, Rspamd, and RainLoop. OpenSMTPD is the default mail server for OpenBSD. Choose a Vultr Compute Cloud instance with plenty of storage for the expected number of users. Preliminary Steps Verify the server’s outbound port status. Set up…
Read MoreVultr Load Balancer Quickstart Guide
Introduction The Vultr Load Balancer is a fully-managed solution to distribute traffic to multiple application servers. With a Vultr Load Balancer, you can enable horizontal scaling and increase the reliability of your applications in seconds by setting a few parameters through the customer portal. You don’t need to worry about the underlying load…
Read MoreHow to Use SSH with Vultr Servers
Introduction SSH is a protocol that allows you to connect to Linux or Unix-based servers from the remote system. OpenSSH is a connectivity tool that uses the SSH protocol to communicate between the client and server using the secure shell. This guide explains how to SSH into your Vultr server…
Read MoreBest Practices for SSH on a Production Cloud Server
Introduction SSH (Secure Shell) connects to a remote cloud server via a command-line or GUI client. SSH is a network protocol that is also used by other applications like scp and rsync. Scp copies files between hosts on a network. Rsync can use ssh to transfer files and folders between a local and…
Read MoreDeploy a Vultr Server with Cloud-Init User-Data
What is cloud-init? Cloud-init is a service that customizes Linux-based cloud servers. It’s supported by most Linux distributions and public cloud vendors, and it’s the industry standard to initialize cloud virtual machines. Canonical created cloud-init more than a decade ago for Ubuntu, and since then, all major public clouds and most Linux…
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