Resources, Articles, Tricks, and Solutions in connection to Server Support

550 SPF check failed email error

This article will guide you on how to fix "550 SPF check failed" email error which occurs due to anti-spam checks at recipient mail server.

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Tips to fix unable to unmount delete VMFS Datastore the resource is in use

This guide will help to fix VMWare error "unable to unmount/delete vmfs datastore: the resource is in use" which occurs when trying to remove an empty VMFS Datastore in VMWare vSphere.

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Vmware operation failed to upload to datastore

This guide will help you to fix errors ecountered while trying to upload or copy files to the VMFS Datastore in VMware vSphere (6.7) using the “Upload Files” button in the vSphere Client interface.

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Solution to error VMWare virtual machine disks consolidation is needed

This article will help you to fix the warning error "VMWare: virtual machine disks consolidation is needed" experienced when trying to delete a snapshot, the snapshot VMDK files or logs have not been deleted correctly.

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VirtualBox installation on CentOS 7

This article will help you to install VirtualBox on Centos. VirtualBox Software helps to create and run virtual machines on a single hardware machine.

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How to enable SSH access on DirectAdmin

This article will help you know the best method to enable ssh access for a user in DirectAdmin control panel and also fix common issues encountered while creating a user to use with SSH.

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How to install and configure Icinga2 on Ubuntu

Icinga 2  helps in the monitoring of core resources on a server thereby serving as a resort of comfort for webmasters and website owners from panic and fear of unnoticed critical service changes within the server environment.

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How to fix OCSP SSL Certificate Stapling error

OCSP SSL Stapling error is usually triggered when accessing a website using https:// SSL protocol.

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How to install Git on Ubuntu 18.04

Different ways to install Git which enables tracking the changes in source code as well as to track changes made in files.

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How to fix 550 5.7.1 authentication required Email client error

Most Email client users get SMTP error such as "550 5.7.1 authentication required" when there is an issue or errors in the email configuration information.

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How to install and configure Fail2ban on Ubuntu 16.04

Improving Server security by installing Fail2ban on your server to help protect all kinds of services such as sshd, httpd from brute force attacks.

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Rclone installation process

Rclone is an open-source command line tool which helps to sync files to cloud storage which is makes data migration between storage spaces easy.

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How to optimize azure cache for redis

Factors such as memory pressure, high CPU usage, Bandwidth limitations, and Server loads on server side can result in poor performance of Azure Cache for Redis and the Server in general.

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VestaCP Error Lets Encrypt validation status 400 error

VestaCP Let's Encrypt error status 400 occurs when trying to request Let’s Encrypt SSL for domains in a vestaCP control panel.

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How to fix docker Error response from daemon unable to remove volume

Server users experience Docker error such as "error response from daemon: unable to remove volume" when trying to remove the volume of a container in Docker.

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Our DigitalOcean Active Server Support service

We offer Emergency support and Server management services to help your monitor your infrastructure and quickly resolve and issues that could disrupt your services.

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How to fix SMTP status code 431 error

SMTP error 431 results when you have too many recipients while sending an email.

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Sharing data between Docker Container and Host

The complete guide on how to setup Docker volumes  and how  to share data between a Docker container and a host system.

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Installing docker compose on ubuntu 18.04

Missing cUrl and pip packages on Linux Server can trigger Docker Compose installation failures. This guide will show you how to install docker-compose on Ubuntu without any installation issues.

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How to modify Redis configuration on Ubuntu

By means of Redis command line, changes in Redis Server configuration can be easily implemented. In summary Redis is an in-Memory data store capable of storing data.

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