1. 需要先安装expect ,nc包, (yum -y install expect nc)
2. 安装freenx server. (yum -y install freenx nx)， nxclient不能yum安装，需要下载后再安装.
3.将原有的/var/lib/nxserver/home/.ssh 改名或者备份.从其它nxserver机子上rsync一个old .ssh来.
$ nxserver --status #检查nxserver是否在己经启动.
这里的从client login到server有时会产生以下错误:Server not installed or nx access disabled,就是由以第三部做错后产生的(请注意).
4.完成上面,有时会产生弹出窗口让你查看: /root/.nx/temp/31175/sshlog.
在sshlog中出现:/usr/libexec/nx/nxagent: error while loading shared libraries: /usr/lib/nx/libXcomp.so.2: cannot restore segment prot after reloc: Permission denied
/usr/libexec/nx/nxserver: line 1283: 5192 Terminated sleep $AGENT_STARTUP_TIMEOUT
Can't open /var/lib/nxserver/db/running/sessionId{B4A50EE6610A45F321F7D771073AB3D7}: No such file or directory.
mv: cannot stat `/var/lib/nxserver/db/running/sessionId{B4A50EE6610A45F321F7D771073AB3D7}': No such file or directory
Killed by signal 15.
等错误时,原因是由于打开了selinux,关闭selinux policy可解决这个问题便可正常login.
