Questions
Find answers to frequently asked development questions. For information about Better Stack products, explore our docs.
Is a CNAME to CNAME chain allowed?
No, a CNAME to CNAME chain is not allowed in DNS due to restrictions specified in DNS standards. In DNS (Domain Name System), a CNAME (Canonical Name) record is used to create an alias from one dom...
Is a wildcard CNAME DNS record valid?
In the Domain Name System (DNS), a CNAME (Canonical Name) record is used to create an alias from one domain name to another. A wildcard DNS record is a record that matches requests for non-existent...
Why multiple PTR records in DNS is not recommended?
In the Domain Name System (DNS), the Pointer (PTR) record is used to map an IP address to a hostname, serving the reverse DNS lookup process. These records are crucial for various network functions...
How to configure a Windows machine to allow file sharing with a DNS alias
To configure a Windows machine to allow file sharing with a DNS alias, you'll need to set up the appropriate DNS alias and ensure that the Windows file sharing settings and permissions are correctl...
Setting the hostname: FQDN or short name?
When setting the hostname for a server, you have the choice between using the Fully Qualified Domain Name (FQDN) or a short name. Fully Qualified Domain Name (FQDN): This includes both the hostname...
What is a glue record?
In the Domain Name System (DNS), a glue record is a specific type of record that helps in the resolution of domain names to IP addresses when the authoritative name servers for a domain are within ...
Why can't a CNAME record be used at the apex (aka root) of a domain?
A CNAME (Canonical Name) record in DNS (Domain Name System) is used to alias one domain name to another. It allows you to point a domain or subdomain to another domain's A or AAAA record. The reaso...
What are SPF records, and how do I configure them?
Sender Policy Framework (SPF) is an email authentication protocol used to prevent email spoofing, a technique used by spammers and cybercriminals to send emails with forged sender addresses. SPF al...
What limits the maximum number of connections on a Linux server?
On a Linux server, several factors can limit the maximum number of connections that can be established. These limitations are typically set to ensure the server's stability, security, and to preven...
How do I redirect subdomains to a different port on the same server?
In Apache, you can redirect requests from subdomains to a different port on the same server using VirtualHost configurations and mod_proxy. This allows you to redirect traffic from a subdomain to a...
How do ServerName and ServerAlias work in Apache?
In Apache, ServerName and ServerAlias directives are used in the server configuration to define how the server should respond to different hostnames or domain names. These directives are essential ...
How do I select which Apache MPM to use?
Selecting the appropriate Apache Multi-Processing Module (MPM) depends on various factors, such as the server environment, expected traffic, and the type of workload the server will handle. Here ar...
How to handle relative URLs correctly with a reverse proxy in Apache
When using a reverse proxy in Apache, handling relative URLs correctly is crucial to ensure that requests are routed properly and content is displayed as intended. Here are steps to handle relative...
What does apache (busy workers, idle workers) mean?
In the context of an Apache HTTP server, the terms "busy workers" and "idle workers" pertain to the status of worker threads or processes handling incoming web requests. Busy Workers: These are the...
What's the best way of handling permissions for Apache 2's user www-data in /var/www?
Setting permissions for the Apache user (www-data in most cases) within the /var/www directory is crucial for security and proper functioning of web applications. Here are the recommended steps: 1....
Excessive number of sleeping processes in CentOS - how to diagnose?
An excessive number of sleeping processes in CentOS could be an indication of various issues or simply a normal state depending on the context. These sleeping processes, often represented by the st...
Why not use a WAMP stack?
A WAMP stack (Windows, Apache, MySQL, PHP) or its counterpart LAMP (Linux, Apache, MySQL, PHP) are software bundles that facilitate the setup and management of a web development environment. WAMP i...
What permissions should my website files/folders have on a Linux webserver?
On a Linux web server, setting the correct permissions for website files and folders is crucial for security and functionality. Here are general recommendations for permissions on website files and...
How can I disable TLS 1.0 and 1.1 in apache?
To disable TLS 1.0 and 1.1 in Apache, you need to modify the SSL/TLS configuration settings. This typically involves editing the Apache configuration file, such as ssl.conf or httpd.conf. Make sure...
SSL Certificate Location on UNIX/Linux
In UNIX/Linux systems, SSL certificate files are often stored in specific directories. The exact location can vary based on the distribution and configuration. Commonly, SSL certificates on UNIX/Li...
Make your mark
Join the writer's program
Are you a developer and love writing and sharing your knowledge with the world? Join our guest writing program and get paid for writing amazing technical guides. We'll get them to the right readers that will appreciate them.
Write for us
Build on top of Better Stack
Write a script, app or project on top of Better Stack and share it with the world. Make a public repository and share it with us at our email.
community@betterstack.comor submit a pull request and help us build better products for everyone.
See the full list of amazing projects on github
Thank you to everyone who
![makes this possible!]()
Here is to all the fantastic people that are contributing and sharing their amazing projects: Thank you!