Sysadmin tricks

Each system administrator during his work accumulates small, but useful actions that facilitate the work in one or another area of ​​his responsibility. Such actions or habits that he is used to and which he performs on automatism may not be familiar to his colleagues. Therefore, in this list, I want to make a selection of some of my habits and those collected on the Internet that may be useful to you.

  • Use Delete instead of Shift + Delete to delete
  • To save changes, always use the sequential click of the Apply buttons - OK
  • Data replication does not cancel backup
  • Always check the user's problem before proceeding to fix it.
  • Double check that you are running the rm -rf command in the correct directory
  • On servers, do not disable the request for the reason for shutdown / reboot. It can save you from accidental clicks.
  • Do not use spaces in the naming files and folders. Always-use-english
  • Write for users the batch file “Nothing works
    for me. Bat ” in the batch file executing the commands systeminfo, ipconfig, shutdown / r / t 5
    Sometimes rebooting magically helps
  • Do not perform updates or critical changes on Friday afternoon.
  • The same applies to server reboots.
  • Use the slowest speed to burn discs.
  • Use combinations like CTRL + S, CTRL + C twice. To be sure
  • Read the “release notes” before installing updates.
  • Autocomplete also works in standard Windows paths. Use tab
  • On the server, use the least privilege model. Configure local machine access for daily tasks ( RSAT ). Do not connect to the server as an administrator, only to create a new user
  • If you have to connect via RDP / console to many servers, set different colors on the desktops / in the console to make it easier to navigate
  • If you have to connect via RDP to many servers, display the “My Computer” shortcut on the desktop and rename it by machine name to make it easier to navigate
  • Try to take screenshots of critical settings
  • Before rebooting / shutting down, check the machine name. molly-guard
  • If the hard drive is not detected, put it in the refrigerator for 12 hours ( Freeze your hard drive to recover data: Myth or reality? )
  • The USB connector is the same size as the Eternet connector. Do not blindly connect
  • Provide simple instructions for users to solve problems on their own. (For example, a block diagram for troubleshooting printing )
  • After turning off the computer, count to 10 before turning it on again
  • To increase computer performance, when you are waiting for a command to execute, rotate the mouse cursor clockwise, not counterclockwise
  • Turn on the display of all the icons in the notification area
  • Enable display extensions for known file types
  • Display brief information about the computer on the desktop: machine name, username, ip ( bginfo )
  • Take the habit of manually saving a document every 5-10 minutes
  • Lock the screen before leaving the workplace, even if you leave for a short time
  • Everything works? Do not touch!
  • But, in continuation of the previous one, always apply all security updates
  • If possible, transfer your old server to the virtual machine
  • Periodically check the power of each device so that in the event of a power outage it was not necessary to restore its functionality in emergency mode
  • Back up important information systematically
  • The “Network Connections” control panel applet can be called via Win + R “ncpa.cpl”
  • If the action can be automated, find a way to do it.
  • According to RFC 2606, domains and subdomains are allowed as domain names for examples in the documentation: .example,, and
  • According to RFC 5735, ip ranges can be used as “white” IP addresses for examples in the documentation:, and

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