how to redirect www to without www domain??

[linuxesabz]

i have domain www.example.com and want redirect to example.com
how to do it?

[Safe3]

Just write one lua rule as follow, and use it for www.example.com:

if waf.host == "www.example.com" then
return waf.redirect("https://example.com" .. waf.reqUri)
end
return false