I installed nxserver on mandriva 2006 without any problem by using the document from http://www.linux-tip.net/cms/content/view/216/26/

When i connect from client i am getting "session startup failed"
error message,
this is the log file:

NX> 203 NXSSH running with pid: 31178
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: 192.168.40.32 on port: 22
NX> 202 Authenticating user: nx
NX> 208 Using auth method: publickey
HELLO NXSERVER - Version 1.4.0-44 OS (GPL)
NX> 105 hello NXCLIENT - Version 1.4.0
NX> 134 Accepted protocol: 1.4.0
NX> 105 SET SHELL_MODE SHELL
NX> 105 SET AUTH_MODE PASSWORD
NX> 105 login
NX> 101 User: user
NX> 102 Password:
NX> 103 Welcome to: wireless user: user
NX> 105 listsession --user="user" --status="suspended,running" --geometry="1024x768x24+render" --type="unix-kde"
NX> 127 Sessions list of user 'user' for reconnect:

Display Type Session ID Options Depth Screen Status Session Name
------- ---------------- -------------------------------- -------- ----- -------------- ----------- ------------------------------


NX> 148 Server capacity: not reached for user: user
NX> 105 startsession --link="lan" --backingstore="1" --nodelay="1" --cache="8M" --images="32M" --media="0" --session="wire" --type="unix-kde" --cookie="******" --geometry="1024x743" --kbtype="pc102/us" --screeninfo="1024x743x24+render"

NX> 1000 NXNODE - Version 1.4.0-44 OS (GPL)
NX> 700 Session id: wireless-1001-3C761B962CD6DCBC44EC5BB62FB5BDCA
NX> 705 Session display: 1001
NX> 703 Session type: unix-kde
NX> 701 Proxy cookie: 6623b130fc3ac431df828da942b63135
NX> 702 Proxy IP: 192.168.40.145
NX> 706 Agent cookie: c86dc3c54180c8f6d6dfc4c8e9a08ce8
NX> 704 Session cache: unix-kde
NX> 707 SSL tunneling: 0
NX> 504 Session startup failed.
NX> 1004 Error: nxagent failed to start with: Unrecognized option: 1
NX> 105 /usr/bin/nxserver: line 880: 30838 Terminated ( sleep $AGENT_STARTUP_TIMEOUT; exit 1 )
NX> 1001 Bye.
Killed by signal 15.

how can i solve this problem?

I'm having the same problem.

Can't figure it out for the life of me.

noorudin, it's been a few days since you placed this post. Have you found a solution?

I had exactly the same problem, I did everything I could think of to to avail, until I installed the packages from www.nomachine.org and now I can connect from a windows nx client without any problems. One minor difficulty may be that you will need to generate the authentication keys with ssh-keygen, as there is no nxkeygen program. If you need more help, please let me know.