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Networking Configuration

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# Networking Configuration

This article details the networking configuration necessary for a robust and secure MediaWiki 1.40 installation. Proper networking is critical for performance, security, and accessibility. This guide is aimed at system administrators and those responsible for maintaining the MediaWiki server environment. It assumes a basic understanding of networking concepts such as TCP/IP, DNS, and firewalls. Refer to Manual:Configuration for general configuration information.

Overview

A well-configured network allows MediaWiki to efficiently serve content to users, connect to external databases (if applicable), and communicate with other services like caching servers (e.g., Memcached). Security considerations are paramount, requiring careful firewall rules and potentially the use of a reverse proxy like Apache or Nginx. The following sections detail key networking components and configuration options.

Network Interface Configuration

The primary network interface of your server is the gateway for all MediaWiki traffic. Static IP addresses are *strongly* recommended for production environments. The following table outlines common settings.

Parameter Value Description
Interface Name eth0 (example) The name of the network interface. May vary (e.g., enp0s3).
IP Address 192.168.1.100 (example) The static IP address assigned to the server.
Netmask 255.255.255.0 (example) The network mask defining the network size.
Gateway 192.168.1.1 (example) The IP address of the default gateway.
DNS Servers 8.8.8.8, 8.8.4.4 (example) The IP addresses of the DNS servers. Consider using your ISP's DNS servers or public options like Google's.

Configuration typically involves editing network configuration files specific to your operating system. For example, on Debian/Ubuntu, you'd modify `/etc/network/interfaces`. Consult your operating system's documentation for specific instructions. After making changes, restart the networking service. Verify connectivity using `ping` to the gateway and a public DNS server. See Networking Basics for more information.

DNS Configuration

Properly configured DNS is crucial for users to access your MediaWiki site. You'll need to create an A record pointing your domain name (e.g., `wiki.example.com`) to the static IP address of your server.

Record Type Name Value TTL
A wiki.example.com 192.168.1.100 (example) 3600
MX example.com mail.example.com 3600

Consider using a Content Delivery Network (CDN) for improved performance, especially for geographically dispersed users. A CDN caches static content closer to users, reducing latency. See Setting up a CDN for more details. Also, ensure that reverse DNS (PTR records) are configured correctly, especially if you plan to use email features within MediaWiki.

Firewall Configuration

A firewall is essential for protecting your MediaWiki server from unauthorized access. Configure your firewall to allow only necessary traffic. The following table lists common ports that need to be opened.

Port Protocol Description
80 TCP HTTP (for non-SSL access - *not recommended*).
443 TCP HTTPS (for secure SSL/TLS access - *strongly recommended*).
22 TCP SSH (for remote administration - restrict access to trusted IPs).
3306 TCP MySQL/MariaDB (if the database server is on a separate machine). Restrict access to the MediaWiki server.
11211 TCP/UDP Memcached (if using Memcached caching). Restrict access to the MediaWiki server.

Use a firewall management tool like `iptables` (Linux) or the Windows Firewall. Be sure to regularly review and update your firewall rules. Consider using a Web Application Firewall (WAF) for advanced protection against common web attacks. See Security Best Practices for more information. Ensure that your firewall logs are monitored for suspicious activity.

Load Balancing and High Availability

For high-traffic sites, consider using a load balancer to distribute traffic across multiple MediaWiki servers. This improves performance and provides redundancy in case of server failure. Load balancing can be implemented using hardware load balancers or software solutions like HAProxy or Nginx. Implementing a clustered database solution (e.g., MySQL replication) is also crucial for high availability. Refer to Setting up a Load Balancer for guidance.

Important Considerations

⚠️ *Note: All benchmark scores are approximate and may vary based on configuration. Server availability subject to stock.* ⚠️

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