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Canvas Maintenance

This chapter is special guide for Canvas 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

Backup and Restore


Refer to the official docs: Upgrading Canvas


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

How can I use the logs?

You can find the keywords Failed or error from the these logs

  • Canvas log: /data/wwwroot/canvas/log/production.log
  • Apache log: /data/logs/apache

403 error?

You should make sure user canvas and www-data haver permission of DIR /data/wwwroot/canvas


现象描述:文件上传后,下载出现"无法访问网站 找不到canvas.example.com服务器IP地址 " 解决办法:

  1. 找到 Apache 虚拟主机配置文件,将 ServerName 值修改为实际域名
  2. 找到 Canvas 域名配置文件,将 production 配置节点的 domain 值修改为实际域名


Can Canvas open source support mobile?

Yes, refer to: mobile-guide

Canvas multi-languages?


Canvas 怎么安装插件?

参考: 安装插件

Can I reset administrator password of Canvas by command?


Canvas hosted offering vs OpenSource?

Refer to: code differences between the open source and hosted offerings

Canvas 根目录需 canvas 和 apache 权限?

是的。拥有者是 canvas,同时通过 setfacl 额外给 www-data 赋予权限

setfacl -m u:www-data:rx -R /data/wwwroot/canvas