我已经在Ubuntu 10.04桌面上安装了FreeNX服务器，并且可以使用NXClientselect“UNIX”和“GNOME”来远程连接到系统。 我想使用NX的“阴影”function，我无法使用“阴影”连接到此FreeNX计算机，下面显示了nxclient显示的错误的“详细信息”：
NX> 203 NXSSH running with pid: 1472 NX> 285 Enabling check on switch command NX> 285 Enabling skip of SSH config files NX> 285 Setting the preferred NX options NX> 200 Connected to address: <my-public-ip-here> on port: 22 NX> 202 Authenticating user: nx NX> 208 Using auth method: publickey HELLO NXSERVER - Version 3.2.0-74-SVN OS (GPL, using backend: 3.4.0) NX> 105 hello NXCLIENT - Version 3.2.0 NX> 134 Accepted protocol: 3.2.0 NX> 105 SET SHELL_MODE SHELL NX> 105 SET AUTH_MODE PASSWORD NX> 105 login NX> 101 User: user1 NX> 102 Password: NX> 103 Welcome to: ubuntu-desktop user: user1 NX> 105 listsession --type="shadow" NX> 127 Sessions list of user '.*' for reconnect: Display Type Session ID Options Depth Screen Status Session Name ------- ---------------- -------------------------------- -------- ----- -------------- ----------- ------------------------------ 0 Local 511F1EC3F84D9E4966D69BD8C4A33524 -------- Running X0 (Local) 0 Local 5B89B05C835121F9431AB6AEAD0E53B2 -------- Running X0 (Local) NX> 148 Server capacity: not reached for user: .* NX> 105 listsession --type="shadow" NX> 127 Sessions list of user '.*' for reconnect: Display Type Session ID Options Depth Screen Status Session Name ------- ---------------- -------------------------------- -------- ----- -------------- ----------- ------------------------------ 0 Local 511F1EC3F84D9E4966D69BD8C4A33524 -------- Running X0 (Local) 0 Local 5B89B05C835121F9431AB6AEAD0E53B2 -------- Running X0 (Local) NX> 148 Server capacity: not reached for user: .* NX> 105 attachsession --link="modem" --backingstore="1" --encryption="1" --cache="16M" --images="64M" --shmem="1" --shpix="1" --strict="0" --composite="1" --media="0" --session="ubuntu" --type="shadow" --client="winnt" --keyboard="pc105/en_US" --id="5B89B05C835121F9431AB6AEAD0E53B2" --display="0" NX> 596 Could not find shadowed session 5B89B05C835121F9431AB6AEAD0E53B2. Session failed. NX> 596 Sharing: NX> 105 NX> 280 Exiting on signal: 15 任何人都可以帮助指导正确的方向？