Help Documentation

A repository of articles designed to help administrators get configured with NOC and troubleshoot common website and system issues.

NET::ERR_CERT_COMMON_NAME_INVALID When Moving SSL Certs Between Servers

This article describes how to troubleshoot errors when moving SSL certificates between servers.



Posted in Troubleshooting   SSL     /   2022-08-30

NOC - DNS API

This article provides details about the NOC API for the Authoritative DNS.



Posted in product_configuration   API     /   2022-08-19

NOC: Smart Routing w/ Enhanced Records - AuthDNS

This article explains how to use the smart routing and enhanced records with the NOC Authoritative DNS service.



Posted in Product_Configurations   NOC_Feature     /   2022-08-16

NOC: Smart Routing w/ Enhanced Records - AuthDNS

This article explains how to use the smart routing and enhanced records with the NOC Authoritative DNS service.



Posted in Product_Configurations   NOC_Feature     /   2022-08-16

Rate limiting with IPTables

This article explains how to rate limit using the recent module in IPTables.



Posted in Security_Tips   Security   Linux   IPTables     /   2022-07-19

10 Steps to Securing SSH on a Linux Server

This article explains how to secure SSH on a linux server.



Posted in Security_Tips   Security   Linux   IPTables     /   2022-07-06

Block User Agents on NGINX and Apache Web Server

This article explains how to block user agents on a NGINX or Apache Web Server.



Posted in Security_Tips   Linux   Apache   NGINX     /   2022-07-05

Commenting in IPTables

This article explains how to create comments in IPTable rules.



Posted in Security_Tips   Security   Linux   IPTables     /   2022-07-05

Blocking HTTP requests via Iptables for a specific domain

This article explains how to block HTTP requests using IPTables Firewall for Linux.



Posted in Networking_Tips   Troubleshooting   Linux   Firewall   IPTables     /   2022-07-05

Default Blocks in IPTables

This article explains how to create Default Blocks in IPTable rules.



Posted in Security_Tips   Security   Linux   IPTables     /   2022-06-24

A Basic Linux Security Checklist

This article provides 8 steps to creating a secure Linux server.



Posted in Security_Tips   Security   Linux   IPTables     /   2022-06-24

Enable SFTP on Ubuntu Server

This article explains how to configure SFTP on a linux server.



Posted in Security_Configurations   Linux   Security     /   2022-06-23

Troubleshooting Apache MultiView Option

This article provides some details on how to work with the Apache Multiview Option to handle file extensions.



Posted in Application_Tips   Troubleshooting   Apache     /   2022-06-23

ERROR 1064 (42000) at line 1 – Passing MySQL Create User Arguments via SSH

This article describes how to resolve Error 1064 when passing arguments to MySQL using SSH



Posted in Troubleshooting   MySQL     /   2022-06-17

MySQL – ERROR 1819 (HY000): Your password does not satisfy the current policy requirements

This article describes how to troubleshoot MySQL when your password does not satisfy the current policy requirement.



Posted in Troubleshooting   MySQL     /   2022-06-17

PHP-FPM Pool Setup: WordPress Requires FTP/SFTP User After Successful Configuration

This article describes how to troubleshoot errors with PHP-FPM, specifically with WordPress requiring FTP / SFTP.



Posted in Troubleshooting   WordPress   PHP-FPM     /   2022-06-17

PHP-FPM: ERROR: [pool [name1]] unable to set listen address as it’s already used in another pool ‘[name2]’

This article describes how to troubleshoot errors with PHP-FPM, specifically when another pool is already in use.



Posted in Troubleshooting   PHP-FPM     /   2022-06-17

Troubleshooting Random Connection Errors with a WAF/CDN

This article describes the process of troubleshooting connection issues with the NOC CDN.



Posted in Troubleshooting   CDN     /   2022-06-17

Proximity Routing

This article describes the process of configuring Proximity Routing with the NOC Authoritative DNS service.



Posted in Product   Feature   Authoritative_DNS     /   2022-06-16

High Availability (HA)

This article describes the process of configuring High Availability (HA) with the NOC Authoritative DNS service.



Posted in Product   Feature   Authoritative_DNS     /   2022-06-16

Content Delivery Network (CDN)

This article briefly explains the NOC CDN.



Posted in Product   Feature   CDN     /   2022-06-16

Automated Failover Recovery

This article describes the process of using the automated failover recovery feature with the NOC Authoritative DNS service.



Posted in Product   Feature   Authoritative_DNS     /   2022-06-16

Geo-Based Routing

This article describes the process of using the Geo-Based Routing feature with the NOC Authoritative DNS service.



Posted in Product   Feature   Authoritative_DNS     /   2022-06-16

CDN POP Locations

This article shows where NOC has points of presence (POP) for the CDN.



Posted in Product_Configuration   Feature   CDN     /   2022-06-16

Protect SSH with IP Authentication

This article explains how protect SSH using IP Authentication.



Posted in Product_Configuration   Feature   Security   SSH     /   2022-06-16

Continuous Monitoring

This article explains how to configure continuous monitoring with the NOC monitoring service.



Posted in Product_Configuration   Feature     /   2022-06-16

Working with UFW on Ubuntu

This article explains UFW and hows how to use it on Ubuntu.



Posted in Security_Configurations   Linux   Security   Ubuntu     /   2022-06-16

Install NMAP on Ubuntu

This article explains how to configure NMAP on a linux server.



Posted in Security_Configurations   Linux   Security   Ubuntu     /   2022-06-16

Apache – Configuring VirtualHosts on Ubuntu 18.04

This article explains how to configure VirtualHost files for Apache on Ubuntu 18.04.



Posted in Application_Tips   Linux   Apache   Ubuntu     /   2022-06-16

Auto-Update CentOS 7 Packages with Yum-Cron

This article explains how to apply autoupdates on a CentOS 7 linux distribution.



Posted in Application_Tips   Linux   CentOS_7     /   2022-06-16

Parse JSON Responses using Bash Scripts

This article explains how to parse JSON responses using Basch Scripts.



Posted in Application_Tips   Scripting     /   2022-06-16

Remove .php / .html extension from URL slug

This article explains how to remove .php and .html extensions from URL slugs.



Posted in Application_Tips   Troubleshooting   Apache     /   2022-06-16

Removing Index.php From the URL Slug in WordPress

This article explains how to reset the root password in MySQL when it is empty.



Posted in Application_Tips   Troubleshooting   WordPress     /   2022-06-16

Setting Root Password on MySql when it’s Empty

This article explains how to reset the root password in MySQL when it is empty.



Posted in Application_Tips   Troubleshooting   MySQL     /   2022-06-16

Binding Multiple IPv6 Addresses Automatically

This article explains how to bind multiple IPv6 addresses automatically.



Posted in Networking_Tips   Troubleshooting   Linux     /   2022-06-16

Blocking DNS requests via IPTables

This article explains how to block DNS requests using IPTables Firewall for Linux.



Posted in Networking_Tips   Troubleshooting   Linux   Firewall   IPTables   DNS     /   2022-06-16

Capture POST Requests on Webserver / Website

This article explains how to capture the content of POST requests on an Apache web server.



Posted in Networking_Tips   Troubleshooting   Linux   Apache     /   2022-06-16

Inspecting DNS traffic via tcpdump

This article explains how to monitor and inspect traffic using TCPDump.



Posted in Networking_Tips   Troubleshooting   Linux   TCPDump     /   2022-06-16

Monitor the Status of OSSEC Service with a Bash Script

This article explains how to monitor the status of services on Linux using OSSEC as an example.



Posted in Networking_Tips   Troubleshooting   Scripting   Monitoring   OSSEC   Linux     /   2022-06-16

List UFW Rules When The Application is Inactive or Disabled

This article explains how to work with UFW, a Linux Firewall, and how to list active and inactive rules.



Posted in Networking_Tips   Troubleshooting   Firewalls   UFW   Ubuntu   Linux     /   2022-06-16

Using DIG to Query DNS Data

This article explains how to use the DIG command to query DNS data.



Posted in Networking_Tips   Troubleshooting   DIG     /   2022-06-15

Using NSLOOKUP to Query DNS Data

This article explains how to use the NSLOOKUP command to query DNS data.



Posted in Networking_Tips   Troubleshooting   NSLookup     /   2022-06-15

NOC: Add Dynamic DNS Record

This article explains how to use dynamic DNS records with the NOC authoritative DNS service.



Posted in Product_Configurations   NOC_Feature     /   2022-06-15

NOC: Restore Original IP for Visitors in Logs

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.



Posted in Product_Configurations   NOC_Feature   Troubleshooting     /   2022-06-15

NOC: Alerting and Slack Integration

This article explains how to configure NOC to send alerts using Slack.



Posted in Product_Configurations   NOC_Feature     /   2022-06-15

How To Change Nameservers on Network Solutions

This article explains how to change the domain nameservers on the Network Solutions registrar.



Posted in Updating_Nameservers   Configurations   Hover     /   2022-06-15

How To Change Nameservers on Hover

This article explains how to change the domain nameservers on the Hover registrar.



Posted in Updating_Nameservers   Configurations   Hover     /   2022-06-15

How To Change Nameservers on NameCheap

This article explains how to change the domain nameservers on the NameCheap registrar.



Posted in Updating_Nameservers   Configurations   NameCheap     /   2022-06-15

How To Change Nameservers on GoDaddy

This article explains how to change the domain nameservers on the GoDaddy registrar.



Posted in Updating_Nameservers   Configurations   GoDaddy     /   2022-06-15

Configure with Liquid Web (Managed Woo / Magento)

This article explains how to configure NOC with LiquidWeb the host.



Posted in Host_Configurations     /   2022-06-15

Getting Started w/CDN

This article explains how to configure the NOC CDN.



Posted in CDN   Product   Features   Help     /   2022-06-15

Find Domain Registrar

This article explains how to find a domains registrar.



Posted in Registrars   Help     /   2022-06-15

Getting started w/Authoritative DNS

This article explains configure the Authoritative DNS service with your domain.



Posted in NOC   Product   Features   DNS   Setup     /   2022-06-15

Getting started Website Monitoring

This article explains configure the Authoritative DNS service with your domain.



Posted in NOC   Product   Features   DNS   Setup     /   2022-06-15

NOC - Activity Logging

This article explains how to view activity on the NOC platform.



Posted in NOC     /   2022-06-08

NOC - Set 2FA

This article explains how to set 2FA on the NOC platform.



Posted in NOC     /   2022-06-08

NOC - Change Password

This article explains how to change a password on the NOC platform.



Posted in NOC     /   2022-06-08

Troubleshooting DNS with Dig

How to troubleshoot issues with DNS using the DIG command in linux.



Posted in troubleshooting   dns     /   2022-06-08

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