Thanks Sriram. It works. ________________________________ 发件人: Sriram Patil <sriramp(a)vmware.com&gt; 发送时间: 2019年2月22日 14:09 收件人: Zhang Fan; devel(a)lists.nfs-ganesha.org 主题: Re: [NFS-Ganesha-Devel] DBUS command for get/set log level Here are the commands used for log level Get and Set dbus-send --print-reply --system --dest=org.ganesha.nfsd /org/ganesha/nfsd/admin org.freedesktop.DBus.Properties.Get string:org.ganesha.nfsd.log.component string:COMPONENT_FSAL dbus-send --system --print-reply --dest=org.ganesha.nfsd /org/ganesha/nfsd/admin org.freedesktop.DBus.Properties.Set string:org.ganesha.nfsd.log.component string:COMPONENT_FSAL variant:string:NIV_FULL_DEBUG Hope this helps. - Sriram From: Zhang Fan <fanzi2009(a)hotmail.com&gt; Date: Friday, February 22, 2019 at 4:32 AM To: &quot;devel(a)lists.nfs-ganesha.org&quot; <devel(a)lists.nfs-ganesha.org&gt; Subject: [NFS-Ganesha-Devel] DBUS command for get/set log level Hi, I tried to use the command below,but it failed. Is there anyone know the correct format? dbus-send --print-reply --system --dest=org.ganesha.nfsd /org/ganesha/nfsd/admin org.ganesha.nfsd.log.component.Get string:org.ganesha.nfsd.log.COMPONENT_FSAL Thanks, Marvin