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Version: 1.0

ONLYOFFICE Maintenance

This chapter is special guide for ONLYOFFICE maintenance and settings. And you can refer to Administrator and Steps after installing for some general settings that including: Configure Domain, HTTPS Setting, Migration, Web Server configuration, Docker Setting, Database connection, Backup & Restore...

Maintenance guide


Refer to ONLYOFFICE update to latest


In addition to the ONLYOFFICE issues listed below, you can refer to Troubleshoot + FAQ to get more.

ONLYOFFICE displays 502 Bad Gateway?

First run the command sudo docker logs onlyofficecommunityserver to check if there's error logs.

Generally, it's caused by the lack of file permission or the failure of data connection.

Can't run ONLYOFFICE after re-installing database?

ONLYOFFICE has strict rules for database configuration, ensure you meet the following requirements:

echo "[mysqld]
max_connections = 1000
max_allowed_packet = 1048576000
group_concat_max_len = 2048
log-error = /var/log/mysql/error.log" > /app/onlyoffice/mysql/conf.d/onlyoffice.cnf


Does ONLYOFFICE support multiple languages?

Yes, you can switch language online.

Community Edition vs Enterprise Edition?

Refer to Compare Community Edition and Enterprise Edition

What's the relationship between various edition of ONLYOFFICE?

ONLYOFFICE offers different versions:


Each edition consists of: Community Server, Document Server, Mail Server.

COMMUNITY EDITION is free, while DEVELOPER EDITION is a paid version for developers.

Is there a limit to the number of concurrent connections in ONLYOFFICE open source version?

Up to 20 Simultaneous connections

ONLYOFFICE Docs What is the number of concurrent connections?

See: ONLYOFFICE Docs related documentation

Does ONLYOFFICE support document editing and previewing by default?

It is already configured by default and can be used without any settings

Can this application provide external document services?

Yes, http://server public IP:9002 is the document preview and editing service address