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How do I configure a virtual private network (VPN) in Linux using OpenVPN or WireGuard?

How do I configure a virtual private network (VPN) in Linux using OpenVPN or WireGuard?

This article guides Linux users through configuring VPNs using OpenVPN or WireGuard. It details installation, configuration, connection verification, and troubleshooting for both protocols. The article also compares their security implications and

Mar 12, 2025 pm 07:02 PM
How do I back up and restore a Linux system?

How do I back up and restore a Linux system?

This article details Linux system backup and restoration methods. It compares full system image backups with incremental backups, discusses optimal backup strategies (regularity, multiple locations, versioning, testing, security, rotation), and da

Mar 12, 2025 pm 07:01 PM
How do I recover a damaged Linux system?

How do I recover a damaged Linux system?

This article details Linux system recovery methods, addressing issues from minor configuration errors to severe hard drive failures. It outlines a tiered approach: booting from a live environment, identifying the problem (using tools like fsck), rep

Mar 12, 2025 pm 07:00 PM
How do I troubleshoot common Linux problems?

How do I troubleshoot common Linux problems?

This article provides a guide to troubleshooting common Linux problems. It details a systematic approach, covering initial problem identification, checking basics (network, disk space, processes, logs), and using advanced debugging techniques. Comm

Mar 12, 2025 pm 07:00 PM
How do I configure SELinux or AppArmor to enhance security in Linux?

How do I configure SELinux or AppArmor to enhance security in Linux?

This article compares SELinux and AppArmor, Linux kernel security modules providing mandatory access control. It details their configuration, highlighting the differences in approach (policy-based vs. profile-based) and potential performance impacts

Mar 12, 2025 pm 06:59 PM
How do I set up a firewall in Linux using firewalld or iptables?

How do I set up a firewall in Linux using firewalld or iptables?

This article compares Linux firewall configuration using firewalld and iptables. Firewalld offers a user-friendly interface for managing zones and services, while iptables provides low-level control via command-line manipulation of the netfilter fra

Mar 12, 2025 pm 06:58 PM
How do I use Apache for blue-green deployments?

How do I use Apache for blue-green deployments?

This article details using Apache as a reverse proxy for blue-green deployments. It discusses configuring two identical Apache environments, implementing traffic switching via configuration changes or an external load balancer, and best practices fo

Mar 12, 2025 pm 06:58 PM
How do I implement canary deployments with Apache using reverse proxy configurations?

How do I implement canary deployments with Apache using reverse proxy configurations?

This article details using Apache as a reverse proxy for canary deployments. It explains weighted round-robin and header-based routing configurations, emphasizing best practices for monitoring and potential challenges like configuration complexity a

Mar 12, 2025 pm 06:58 PM
How do I use Apache for A/B testing with mod_vhost_alias and mod_rewrite?

How do I use Apache for A/B testing with mod_vhost_alias and mod_rewrite?

This article details A/B testing using Apache's mod_vhost_alias and mod_rewrite. It explains creating virtual hosts for different website versions and using mod_rewrite for traffic splitting based on percentages. Performance implications and analyt

Mar 12, 2025 pm 06:57 PM
How do I configure Apache to block malicious bots and scrapers?

How do I configure Apache to block malicious bots and scrapers?

This article details Apache configurations to mitigate malicious bots and scrapers. It explores ModSecurity for custom rule creation, .htaccess for simpler blocking, user-agent filtering, rate limiting (mod_evasive, mod_limitipconn), and CAPTCHAs.

Mar 12, 2025 pm 06:54 PM
How do I implement multi-factor authentication (MFA) with Apache?

How do I implement multi-factor authentication (MFA) with Apache?

This article details implementing multi-factor authentication (MFA) with Apache, emphasizing the use of external providers like Auth0 or Okta via a reverse proxy. It discusses various MFA methods (TOTP, push notifications, SMS OTPs), best practices

Mar 12, 2025 pm 06:54 PM
How do I use Fail2ban to protect Apache against brute-force attacks?

How do I use Fail2ban to protect Apache against brute-force attacks?

This article explains how to use Fail2ban to protect Apache from brute-force attacks. It details installation, configuration (including crucial regex adjustments), and monitoring. Limitations, such as vulnerability to sophisticated attacks and pote

Mar 12, 2025 pm 06:53 PM
How do I configure Apache with ModSecurity or other web application firewalls (WAFs)?

How do I configure Apache with ModSecurity or other web application firewalls (WAFs)?

This article details configuring Apache with ModSecurity or other Web Application Firewalls (WAFs). It covers installation, rule configuration, best practices (updates, fine-tuning, logging), potential conflicts with other modules, and troubleshooti

Mar 12, 2025 pm 06:53 PM
How do I prevent DDoS attacks with Apache?

How do I prevent DDoS attacks with Apache?

This article details how to prevent DDoS attacks on Apache servers. It emphasizes a multi-layered approach combining network-level protection (CDNs, firewalls, rate limiting), optimized Apache configuration (resource limits, KeepAlive settings), reg

Mar 12, 2025 pm 06:51 PM

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