A repository of articles designed to help administrators get configured with NOC and troubleshoot common website and system issues.
This article explains how to change the domain nameservers on the NameCheap registrar.
This article explains how to change the domain nameservers on the Hover registrar.
This article explains how to change the domain nameservers on the GoDaddy registrar.
This article explains how to change the domain nameservers on the Network Solutions registrar.
This article describes how to troubleshoot errors when moving SSL certificates between servers.
This article provides details about the NOC API for the Authoritative DNS.
This article explains how to use the smart routing and enhanced records with the NOC Authoritative DNS service.
This article explains how to use the smart routing and enhanced records with the NOC Authoritative DNS service.
This article explains how to rate limit using the recent module in IPTables.
This article explains how to secure SSH on a linux server.
This article explains how to block user agents on a NGINX or Apache Web Server.
This article explains how to create comments in IPTable rules.
This article explains how to block HTTP requests using IPTables Firewall for Linux.
This article explains how to create Default Blocks in IPTable rules.
This article provides 8 steps to creating a secure Linux server.
This article explains how to configure SFTP on a linux server.
This article provides some details on how to work with the Apache Multiview Option to handle file extensions.
This article describes how to resolve Error 1064 when passing arguments to MySQL using SSH
This article describes how to troubleshoot MySQL when your password does not satisfy the current policy requirement.
This article describes how to troubleshoot errors with PHP-FPM, specifically with WordPress requiring FTP / SFTP.
This article describes how to troubleshoot errors with PHP-FPM, specifically when another pool is already in use.
This article describes the process of troubleshooting connection issues with the NOC CDN.
This article describes the process of configuring Proximity Routing with the NOC Authoritative DNS service.
This article describes the process of configuring High Availability (HA) with the NOC Authoritative DNS service.
This article describes the process of using the automated failover recovery feature with the NOC Authoritative DNS service.
This article describes the process of using the Geo-Based Routing feature with the NOC Authoritative DNS service.
This article shows where NOC has points of presence (POP) for the CDN.
This article explains how protect SSH using IP Authentication.
This article explains how to configure continuous monitoring with the NOC monitoring service.
This article explains UFW and hows how to use it on Ubuntu.
This article explains how to configure NMAP on a linux server.
This article explains how to configure VirtualHost files for Apache on Ubuntu 18.04.
This article explains how to apply autoupdates on a CentOS 7 linux distribution.
This article explains how to parse JSON responses using Basch Scripts.
This article explains how to remove .php and .html extensions from URL slugs.
This article explains how to reset the root password in MySQL when it is empty.
This article explains how to reset the root password in MySQL when it is empty.
This article explains how to bind multiple IPv6 addresses automatically.
This article explains how to block DNS requests using IPTables Firewall for Linux.
This article explains how to capture the content of POST requests on an Apache web server.
This article explains how to monitor and inspect traffic using TCPDump.
This article explains how to monitor the status of services on Linux using OSSEC as an example.
This article explains how to work with UFW, a Linux Firewall, and how to list active and inactive rules.
This article explains how to use the DIG command to query DNS data.
This article explains how to use the NSLOOKUP command to query DNS data.
This article explains how to use dynamic DNS records with the NOC authoritative DNS service.
This article explains how to configure a web server to record the original IP of the visitor vs the edge IP from the NOC CDN.
This article explains how to configure NOC to send alerts using Slack.
This article explains how to configure NOC with LiquidWeb the host.
This article explains how to find a domains registrar.
How to troubleshoot issues with DNS using the DIG command in linux.