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  5. Troubleshooting

Troubleshooting

Common issues and fixes — server not responding, SSH problems, high CPU, disk full, and more.

30 articles

"Cannot Connect via SSH — Troubleshooting"

"Fix SSH connection issues: connection refused, timeout, permission denied, and other common SSH errors."

"Cannot Connect via SSH — Troubleshooting"

SSH is the primary way to manage your server, so being unable to connect can halt your workflow. This guide covers the most common SSH connection errors, their causes, and step-by-…

"Disk Full — How to Free Space"

"Step-by-step guide to diagnose and resolve disk full errors on your VPS server."

"Disk Full — How to Free Space"

A full disk is one of the most common server issues and can cause serious problems: services crash, databases stop accepting writes, applications throw errors, and you may even los…

"High CPU Usage — Diagnosis & Fix"

"Diagnose and fix high CPU usage on your VPS server with these practical troubleshooting steps."

"High CPU Usage — Diagnosis & Fix"

High CPU usage on your VPS can cause slow response times, unresponsive applications, timeouts, and a poor experience for your users. The good news is that identifying the cause is…

"Server Not Responding — Troubleshooting Guide"

"Step-by-step troubleshooting when your VPS server is not responding or unreachable."

"Server Not Responding — Troubleshooting Guide"

A server that is not responding can be alarming, but in most cases the issue can be identified and resolved quickly. This guide takes you through a systematic troubleshooting proce…

App Installation Failed — Troubleshooting

Troubleshoot failed application installations from the Data Mammoth Marketplace — common errors, fixes, and retry steps.

App Installation Failed — Troubleshooting

If an application installation from the Data Mammoth Marketplace fails, this guide helps you identify the cause and resolve it so you can successfully deploy your application. Comm…

DNS Not Resolving — Common Fixes

Troubleshoot DNS resolution issues for your Data Mammoth server — common causes, diagnostic tools, and step-by-step fixes.

DNS Not Resolving — Common Fixes

When your domain name does not resolve to your server's IP address, visitors cannot reach your website. DNS issues can be caused by misconfigured records, propagation delays, or re…

Email Not Sending from Server

Troubleshoot email delivery issues from your Data Mammoth VPS — SMTP configuration, DNS records, and common fixes.

Email Not Sending from Server

If email sent from your server is not being delivered, the problem usually lies in SMTP configuration, DNS records, or IP reputation. This guide walks through the most common cause…

Firewall Blocking Legitimate Traffic

Diagnose and fix firewall rules that are blocking legitimate traffic to your Data Mammoth VPS — web, SSH, and application access.

Firewall Blocking Legitimate Traffic

If your services suddenly become unreachable even though the server is running, the firewall may be blocking legitimate traffic. This is common after firewall configuration changes…

Forgot Password — How to Reset

Step-by-step guide to resetting your Data Mammoth account password and your server's root password when forgotten.

Forgot Password — How to Reset

Forgetting a password happens to everyone. This guide covers how to reset both your Data Mammoth account password and your server's root/user password. Resetting Your Data Mammoth…

Locked Out of 2FA — Recovery Steps

Recover access to your Data Mammoth account when you have lost access to your two-factor authentication device or app.

Locked Out of 2FA — Recovery Steps

If you have lost access to your authenticator app or device and cannot log in to your Data Mammoth account, do not panic. This guide provides recovery options to regain access to y…

Payment Failed — What to Do

Steps to resolve failed payments on your Data Mammoth account — fix payment methods, retry charges, and prevent suspension.

Payment Failed — What to Do

A failed payment can lead to service interruption if not resolved quickly. This guide explains common causes of payment failures and how to fix them to keep your services running.…

Permission Denied Errors on Linux

Troubleshoot and fix common "Permission denied" errors on your Data Mammoth Linux VPS — files, SSH, and services.

Permission Denied Errors on Linux

"Permission denied" errors occur when a user or process attempts to access a file, directory, or resource without the required permissions. This guide covers the most common scenar…

Server Not Booting — Rescue Mode Guide

Diagnose and fix server boot failures on your Data Mammoth VPS using rescue mode, the web console, and common repair steps.

Server Not Booting — Rescue Mode Guide

If your server fails to boot, it can be caused by filesystem corruption, misconfigured boot settings, a failed update, or a full disk. This guide walks you through diagnosing and r…

Slow Server Performance — Optimization Guide

Diagnose and fix slow server performance on your Data Mammoth VPS — CPU, RAM, disk, and application optimization steps.

Slow Server Performance — Optimization Guide

A slow server affects user experience, search engine rankings, and business revenue. This guide helps you identify the cause of poor performance and apply targeted optimizations to…

Website Down — Quick Diagnosis Steps

Fast troubleshooting steps when your website hosted on Data Mammoth is down — check server, services, DNS, and firewall.

Website Down — Quick Diagnosis Steps

When your website goes down, quick diagnosis is essential. This guide provides a systematic approach to identifying and fixing the most common causes of website downtime on your Da…

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