我已经在 ubuntu 10.04 桌面上安装了 FreeNX 服务器，我可以使用 NXClient 选择“UNIX”和“GNOME”远程连接到系统。我想使用 NX 的“影子”功能，但我无法使用“影子”连接到这台 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
有人能帮助指导正确的方向吗？