These are the questions we have identified as Canonical: - **Web Servers** - mod_rewrite: [Everything you ever wanted to know about Mod_Rewrite but were afraid to ask](http://serverfault.com/questions/214512/everything-you-ever-wanted-to-know-about-mod-rewrite-rules-but-were-afraid-to-ask) - Picking the right MPM (on *NIX systems): http://serverfault.com/questions/383526/how-do-i-select-which-apache-mpm-to-use/383634#383634 - One-click (x)AMP: http://meta.serverfault.com/questions/1968/what-to-do-with-xampp-mamp-wamp-questions - [What are the differences between Websites, Directories, Virual Directories, and Applications in IIS 7?](http://serverfault.com/questions/108545/) - **Capacity Planning:** - Database Infrastructure: http://serverfault.com/questions/350458/how-do-you-do-load-testing-and-capacity-planning-for-databases - Web Infrastructure: http://serverfault.com/questions/350454/how-do-you-do-load-testing-and-capacity-planning-for-web-sites - **Career:** - Starting out: [What a beginner should know/learn for a sysadmin job](http://serverfault.com/questions/9766/what-a-beginner-should-know-learn-for-sysadmin-job) - Certification: [What IT certification is most valuable without job experience?](http://serverfault.com/questions/35578/what-it-certification-is-most-valuable-without-job-experience) - **Datacenter Infrastructure & Design** - Fire Suppression: http://serverfault.com/questions/25319/whats-the-best-fire-suppression-for-a-server-room - **Infrastructure Software:** - [How long does it take for an A record to propogate?](http://serverfault.com/questions/125371/how-long-does-it-take-for-an-a-record-to-propagate) - [What is a glue record?](http://serverfault.com/questions/309622/what-is-a-glue-record) - [How to use DNS to redirect domain to specific port on my server](http://serverfault.com/questions/74362) - [Why does DNS work the way it does?](http://serverfault.com/questions/355887/) - [How to keep emails from being classified as spam](http://serverfault.com/questions/48428/how-to-send-emails-and-avoid-them-being-classified-as-spam) - [http://serverfault.com/questions/402580/what-is-active-directory-and-how-does-it-work](http://serverfault.com/questions/402580/what-is-active-directory-and-how-does-it-work) - **Hardware:** - [Why is business-class storage so expensive?](http://serverfault.com/questions/263694) - [What are the different widely used RAID levels and when should I consider them? ](http://serverfault.com/questions/339128/what-are-the-different-widely-used-raid-levels-and-when-should-i-consider-them) - **Hosting provider/server hardware shopping:** *(Note that these are usually* ***Off Topic*** *)* - [Dedicated server or Cloud Hosting?](http://serverfault.com/questions/326205/dedicated-server-or-cloud-hosting) - [Good sites for discussing specific hosting provider/server specification scenarios](http://serverfault.com/questions/292013/good-sites-for-discussing-specific-hosting-provider-server-specification-scenario) - **Licensing:** - [Can you help me with my licensing question?](http://serverfault.com/questions/215405/can-you-help-me-with-my-software-licensing-question) - **Networking:** - Expected Ethernet performance: [http://serverfault.com/questions/333816/how-can-i-check-whats-slowing-down-my-network](http://serverfault.com/questions/333816/how-can-i-check-whats-slowing-down-my-network) - Hairpin Nat: [http://serverfault.com/questions/252521/how-come-i-cant-redirect-tcp-ports-on-this-wireless-router](http://serverfault.com/questions/252521/how-come-i-cant-redirect-tcp-ports-on-this-wireless-router) - Monitoring: [http://serverfault.com/questions/44/what-tool-do-you-use-to-monitor-your-servers](http://serverfault.com/questions/44/what-tool-do-you-use-to-monitor-your-servers) - Monitoring: [http://serverfault.com/questions/394393/what-software-should-i-use-to-monitor-my-servers](http://serverfault.com/questions/394393/what-software-should-i-use-to-monitor-my-servers) - Speed/Size units: [http://serverfault.com/questions/333816/how-can-i-check-whats-slowing-down-my-network](http://serverfault.com/questions/333816/how-can-i-check-whats-slowing-down-my-network) - Subnets: [How does Subnetting Work](http://serverfault.com/questions/49765/how-does-subnetting-work) - **Security:** - Hacked: [My server's been hacked! EMERGENCY](http://serverfault.com/questions/218005/my-servers-been-hacked-emergency) - Linux Webserver rights: http://serverfault.com/questions/357108/what-are-the-best-linux-permissions-to-use-for-my-website - Misbehaving users: [What should I do about this user?](http://serverfault.com/questions/323706/what-should-i-do-about-this-user) - Restricted Shell: http://serverfault.com/questions/89778/how-to-restrict-the-users-shell-allowing-to-execute-shell-programs - Restricting Windows Admin rights on workstations: [How to convince a boss he does not need admin privileges](http://serverfault.com/questions/40764/how-to-convince-a-big-boss-that-he-does-not-need-administrator-privileges) - Securing LAMP: [Tips for securing a LAMP Server](http://serverfault.com/questions/212269/tips-for-securing-a-lamp-server) - Worms: http://serverfault.com/questions/339552/how-do-i-deal-with-the-removal-eradication-of-an-unknown-worm-on-our-network - **SSH:** - ProxyCommand: [How to configure a shortcut for an SSH connection through an SSH tunnel](http://serverfault.com/questions/48808/how-to-configure-a-shortcut-for-an-ssh-connection-through-a-ssh-tunnel) - **Terminal Server (RDS)** - Performance: http://serverfault.com/questions/332622/find-out-the-bottleneck-for-windows-remote-desktop-server-terminal-server - **Virtualisation** - [Enabling hardware virtualisation BIOS; anything to beware?](http://serverfault.com/questions/7690/enabling-hardware-virtualisation-bios-anything-to-beware)