These are the questions we have identified as Canonical: ### Capacity Planning - Generic Capacity Planning: http://serverfault.com/questions/384686 - http://serverfault.com/questions/350458 - http://serverfault.com/questions/350454 ### Career - Starting out: http://serverfault.com/questions/9766 ### Datacenter Design - http://serverfault.com/q/25319 - http://serverfault.com/q/2382 - http://serverfault.com/q/531516 - http://serverfault.com/q/537384 ### Documentation - http://serverfault.com/q/46273 ### EMail & Spam - http://serverfault.com/q/415533 - http://serverfault.com/questions/369460/ - http://serverfault.com/q/419407/126699 - http://serverfault.com/questions/227242 - http://serverfault.com/questions/48428 ### Hardware - http://serverfault.com/q/263694 - http://serverfault.com/q/339128 - http://serverfault.com/q/425335 - http://serverfault.com/q/15040/ ### Hosting provider/server hardware shopping - http://serverfault.com/q/326205 - http://serverfault.com/q/398335 ### Infrastructure Software - http://serverfault.com/q/368512 #### Active Directory - http://serverfault.com/q/402580 - http://serverfault.com/q/406240 - http://serverfault.com/q/394804 #### DNS - http://serverfault.com/q/23744 - http://serverfault.com/q/125371 - http://serverfault.com/q/309622 - http://serverfault.com/q/74362 - http://serverfault.com/q/355887 - http://serverfault.com/q/612833 - http://serverfault.com/q/482913 - http://serverfault.com/q/588244 - http://serverfault.com/q/613829 - http://serverfault.com/q/649559 - http://serverfault.com/q/669819 - http://serverfault.com/q/710108 - http://serverfault.com/q/634793 ### Licensing - http://serverfault.com/q/215405 - http://serverfault.com/q/537568 ### Networking - http://serverfault.com/q/333816 - http://serverfault.com/q/55611 - http://serverfault.com/q/2163 - http://serverfault.com/q/394393 - http://serverfault.com/q/49765 - http://serverfault.com/q/426183 - http://serverfault.com/q/184524 - http://serverfault.com/q/188350 - http://serverfault.com/q/521618 - http://serverfault.com/q/548888 - http://serverfault.com/questions/725262/what-causes-the-connection-refused-messge ### General Unix/Linux OS Stuff - http://serverfault.com/q/449296 - http://serverfault.com/q/449651 - http://serverfault.com/q/449395 - http://serverfault.com/q/671223 - http://serverfault.com/q/489628 - http://serverfault.com/q/563051 - http://serverfault.com/q/597115 ### Security - http://serverfault.com/q/587329 - http://serverfault.com/q/218005 - http://serverfault.com/q/357108 - http://serverfault.com/q/323706 - Restricted Shell: http://serverfault.com/q/89778 - http://serverfault.com/q/40764 - http://serverfault.com/q/212269 - http://serverfault.com/q/339552 - http://serverfault.com/q/364677 - http://serverfault.com/q/531941 ### SSH - http://serverfault.com/q/463366 - ProxyCommand: http://serverfault.com/q/48808 ### Terminal Server (RDS) - http://serverfault.com/q/332622 ### Uptime - http://serverfault.com/q/316637 - [reaching 99.9999% uptime](http://serverfault.com/q/130300) ### Virtualization - [Enabling hardware virtualisation BIOS; anything to beware?](http://serverfault.com/q/7690) ### Web Servers - mod_rewrite: [Everything you wanted to know about mod_rewrite rules but were afraid to ask](http://serverfault.com/q/214512) - Picking the right MPM (on *NIX systems): [How do I select which Apache MPM to use?](http://serverfault.com/questions/383526) - One-click (x)AMP: [Why not use a WAMP stack?](http://serverfault.com/questions/453617/why-not-use-a-wamp-stack), Meta: http://meta.serverfault.com/questions/1968 - IIS7: [What are the differences between Websites, Directories, Virual Directories, and Applications in IIS 7?](http://serverfault.com/questions/108545) - SNI: [Multiple SSL domains on the same IP address and same port?](http://serverfault.com/questions/109800) - Host Header vs. DNS: [How does pointing a CNAME on my domain to a service-provider's server enable them to offer customized services?](http://serverfault.com/q/342999/152073) ### Windows (General) - Host files: [Hosts file ignored, how to troubleshoot](http://serverfault.com/questions/452268/hosts-file-ignored-how-to-troubleshoot) ### Meta - http://meta.serverfault.com/questions/5763/why-sf-is-failing-the-dismal-future-of-serverfault