[FreeNX-kNX] error while opening terminal

[Alastair Johnson]

On Saturday 27 June 2009, ginzzer wrote:
> In the previous email, I report that there are lots of errors shown
> whenever I open and run command in the terminal after my logging in via
> nx client
>
> ERROR: ld.so: object '/usr/lib//libnxredir.so.0' from LD_PRELOAD cannot be
> preloaded: ignored. ERROR: ld.so: object '/usr/lib//libnxredir.so.0' from
> LD_PRELOAD cannot be preloaded: ignored. ERROR: ld.so: object
> '/usr/lib//libnxredir.so.0' from LD_PRELOAD cannot be preloaded: ignored.
>
> So I run "nxloadconfig --check", it shows
>
> ---------------------------------------------------------------------------
>----------------------------------------- Warning: Could not find nxdesktop
> in /usr/bin. RDP sessions won't work. Warning: Could not find nxviewer in
> /usr/bin. VNC sessions won't work. Warning: Invalid value
> "APPLICATION_LIBRARY_PRELOAD=/usr/lib/libX11.so.6.2:/usr/lib/libXext.so.6.4
>:/usr/lib/libXcomp.so.2:/usr/lib/libXcompext.so:/usr/lib/libXrender.so.1.2".
> /usr/lib/libX11.so.6.2 could not be found. Users will not be able to run a
> single application in non-rootless mode. Warning: Invalid value
> "DEFAULT_X_SESSION=/etc/X11/xdm/Xsession"
>          Users might not be able to request a default X session.
> Warning: Invalid value "COMMAND_START_CDE=cdwm"
>          Users will not be able to request a CDE session.
> Warning: Invalid value "COMMAND_SMBUMOUNT=smbumount". You'll not be able to
> use SAMBA. Error: Could not find 1.5.0 or 2.[01].0 or 3.[01].0 version
> string in nxagent. NX 1.5.0 or 2.[01].0 or 3.[012].0 backend is needed for
> this version of FreeNX.
>
>   Warnings occured during config check.
>   To enable these features please correct the configuration file.
> ---------------------------------------------------------------------------
>--------------------------------------------
>
> I don't know why it complain about nxdesktop and nxviewer, shouldn't it
> included in the package?
>
> For the third warning  "APPLICATION_LIBRARY_PRELOAD= ...", I looking the
> whole system to find out some related library, here is what I get
>
> ask for                                         I have
> /usr/lib/libX11.so.6.2                   /usr/lib64/NX/lib/libX11.so.6.2
> /usr/lib/libXext.so.6.4                  /usr/lib64/NX/lib/libXext.so.6.4
> /usr/lib/libXcomp.so.2                 /usr/lib64/NX/lib/libXcomp.so.3
> /usr/lib/libXcompext.so               /usr/lib64/NX/lib/libXcompext.so.3
> /usr/lib/libXrender.so.1.2             
> /usr/lib64/NX/lib/libXrender.so.1.2.2
>
> So I make a link in /usr/lib linking to those library in
> /usr/lib64/NX/lib/, now if I run "nxloadconfig --check" again, it shows

It looks like detection of APPLICATION_LIBRARY_PATH is picking up /usr/lib 
where it should be picking up /usr/lib64/NX/lib. I think you can specify this 
in /etc/nxserver/node.conf to override autodetection but I've never had to 
try. I don't remember running into this problem on 64bit centos before either. 
If it works then it's safer than making symlinks.

>
> ---------------------------------------------------------------------------
>----------------------------- Warning: Could not find nxdesktop in /usr/bin.
> RDP sessions won't work. Warning: Could not find nxviewer in /usr/bin. VNC
> sessions won't work. Warning: Invalid value
> "DEFAULT_X_SESSION=/etc/X11/xdm/Xsession"
>          Users might not be able to request a default X session.
> Warning: Invalid value "COMMAND_START_CDE=cdwm"
>          Users will not be able to request a CDE session.
> Warning: Invalid value "COMMAND_SMBUMOUNT=smbumount". You'll not be able to
> use SAMBA. Error: Could not find 1.5.0 or 2.[01].0 or 3.[01].0 version
> string in nxagent. NX 1.5.0 or 2.[01].0 or 3.[012].0 backend is needed for
> this version of FreeNX.
>
>   Warnings occured during config check.
>   To enable these features please correct the configuration file.
> ---------------------------------------------------------------------------
>-----------------------------
>
> What I am really confusing is why is said "Could not find 1.5.0 or 2.[01].0
> or 3.[01].0 version string in nxagent. NX 1.5.0 or 2.[01].0 or 3.[012].0
> backend is needed for this version of FreeNX." What is it asking for? What
> do I need to install to remove this error? Anyway, even with this error, I
> can still logon and run application, but the main problem is wheven I open
> terminal or run any command, it returns: ERROR: ld.so: object
> '/usr/lib//libnxredir.so.0' from LD_PRELOAD cannot be preloaded: ignored.
> sometimes repeats 10 times.

I think correcting APPLICATION_LIBRARY_PATH should fix this one too.