Category Archives: sysadmin

sysadmin

How to reset UniFi controller admin password, without email, including 32bit – Rob’s Blog

The easy method:

If your controller is installed on a 64bit operating system (default for recent versions), you should have no trouble following this method.

  • Download Robo 3T from this link
  • Install and create a profile for your local server, and port number 27117
  • Connect to it, and in the left pane expand “ace” and then “collections”
  • Right-click on “admin” and click “View documents”
  • Open up this link to QuickHash.com
  • In the “Input data” field, type the new password you would like to set, and in the “Salt” field type 9Ter1EZ9$lSt6 and click Generate and your new password hash will be shown in the output field.
  • Copy the output value from QuickHash, and head back to Robo 3T to paste it in the “x_shadow” field.
  • Head back to your UniFi login screen, unter your username and your new password and you should be straight in!

Source: How to reset UniFi controller admin password, without email, including 32bit – Rob’s Blog

Linux, sysadmin

Postfix TLS Support

What Postfix TLS support does for youTransport Layer Security (TLS, formerly called SSL) provides certificate-based authentication and encrypted sessions. An encrypted session protects the information that is transmitted with SMTP mail or with SASL authentication.NOTE: By turning on TLS support in Postfix, you not only get the ability to encrypt mail and to authenticate remote SMTP clients or servers. You also turn on hundreds of thousands of lines of OpenSSL library code. Assuming that OpenSSL is written as carefully as Wietse’s own code, every 1000 lines introduce one additional bug into Postfix.Topics covered in this document:How Postfix TLS support worksSMTP Server specific settingsSMTP Client specific settingsTLS manager specific settingsBuilding Postfix with TLS supportReporting problemsCreditsAnd last but not least, for the impatient:Getting started, quick and dirty

Source: Postfix TLS Support