/custom/conf/app.ini

[server]
DOMAIN           = 118.31.67.60   #域名
EXTERNAL_URL     = http://118.31.67.60:9999/  #url地址
SSH_PORT         = 9992  #ssh端口改为非22
START_SSH_SERVER = true  #启动用ssh登录 

[service]
DISABLE_REGISTRATION = false   #关闭注册
ENABLE_CAPTCHA         = true  #
REQUIRE_SIGNIN_VIEW    = true  #关闭预览

注：把此处的false改成 true，重启

[picture]
DISABLE_GRAVATAR        = true  #关闭头像

https://blog.csdn.net/menghuanbeike/article/details/78581937