These are the questions we have identified as Canonical:
Capacity Planning
- Generic Capacity Planning: Can you help me with my capacity planning?
- How do you do load testing and capacity planning for databases?
- How do you do load testing and capacity planning for web sites?
Career
- Starting out: What a beginner should know/learn for sysadmin job?
Datacenter Design
- What's the best fire suppression for a server room?
- Server room survival kit?
- What were your server room pain points, big wins and must haves?
- What to look for in a datacentre ethernet switch
Documentation
EMail & Spam
- Incoming:
- Bystander:
- Outgoing:
Hardware
- Why is Enterprise Storage so expensive?
- What are the different widely used RAID levels and when should I consider them?
- What is a Storage Area Network, and which benefits does it have over different storage solutions?
Hosting provider/server hardware shopping
- Dedicated server or Cloud Hosting?
- Use Google Apps/Cloud Services as a Domain Controller Replacement
Infrastructure Software
- What is Active Directory Domain Services and how does it work?
- Can I have multiple DHCP servers on one network?
- What is Group Policy and how does it work?
- What should the order of DNS servers be for an AD Domain Controller and Why?
DNS
- http://serverfault.com/q/125371
- http://serverfault.com/q/309622
- http://serverfault.com/q/74362
- http://serverfault.com/q/355887
Licensing
- Can you help me with my software licensing issue?
- Do I need a RHEL subscription to install packages?
Networking
- Networking Units: Not getting expected performance from 100Mb Ethernet
- Hairpin NAT: Loopback to forwarded Public IP address from local network - Hairpin NAT
- What tool do you use to monitor your servers?
- What tools can create a map of my network?
- What am I looking for in a Monitoring Solution?
- How does IPv4 Subnetting Work?
- How does IPv6 subnetting work and how does it differ from IPv4 subnetting?
- How do VLANs work?
- Exposing multiple servers behind NAT using a single public IP address
- What to look for in a datacentre ethernet switch
General Unix/Linux OS Stuff
- Why is Linux reporting "free" memory strangely?
- Why is my crontab not working, and how can I troubleshoot it?
Security
- How do I deal with a compromised server?
- Linux Webserver Rights: What permissions should my website files/folders have on a Linux webserver?
- Misbehaving users: What should I do about a "misbehaving" user?
- Restricted Shell: How to restrict the users' shell allowing to execute shell programs
- How to convince a big boss that he does not need administrator privileges?
- Tips for Securing a LAMP Server
- How do I deal with the removal/eradication of an unknown worm on our network?
- Why is "chmod -R 777 /" destructive?
- I am under DDoS. What can I do?
SSH
Terminal Server (RDS)
Uptime
Unix (General)
Virtualization
Web Servers
- mod_rewrite: Everything you wanted to know about mod_rewrite rules but were afraid to ask
- Picking the right MPM (on *NIX systems): How do I select which Apache MPM to use?
- One-click (x)AMP: Why not use a WAMP stack?, Meta: What to do with XAMPP/MAMP/WAMP questions
- IIS7: What are the differences between Websites, Directories, Virual Directories, and Applications in IIS 7?
- SNI: Multiple SSL domains on the same IP address and same port?
