Questions about Installing ONLYOFFICE Document Server Linux version

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Hello @kaman
The mentioned guide is correct. You can follow it to install Document server. As for your questions:

1, the document said, we need to use postgresql. but I believe, lots of people use: mysql/mariadb

If you’re looking for a way to change database during installation step, you can do it via docker: Installing ONLYOFFICE Docs for Docker on a local server - ONLYOFFICE

  • DB_TYPE: The database type. Supported values are postgres, mariadb or mysql. Defaults to postgres.

If you prefer packages, you have to complete default installation and change database after that with config files editing. We’ve discussed similar case recently here: ONLYOFFICE Document Server with MariaDB uses 127.0.0.1 when asked to use localhost - #9 by Alexandre

the document said, “https://download.onlyoffice.com/repo/debian squeeze main” to the source list, but squeeze is a very old version. Should we change squeeze to match my current version?

No additional steps are needed. But if you want to change repository version, you can do it, you shouldn’t face any issues.