Freenx:NX是一个基于X协议的远程显示软件,但是对X协议数据进行压缩,重要的特性是能够在低带宽的网络情况下使用X协议。Freenx是NX的GPL版本。
FreeNX是近年来继VNC之后新出现的远程控制解决方案,基本原理是将XWindows的信号压缩后传输到远程客户端显示,而VNC是直接截取屏幕图像处理传输。这样,在同样的传输信道条件下,FreeNX可以比VNC提供更好的操作感和实时性;也正因为其实现原理依赖于XWindows,因此FreeNX目前也就不支持将Windows作为远程控制服务器端。
一、FreeNX服务器端安装
1、下载软件:
下载freenx、nx、expect、nc
2、安装软件:
#rpm -ivh nc-1.10-18 RPM for i386
#rpm -i nx-1.4.0-0.fdr.4.i386.rpm
#rpm -i expect-5.4.2.1-1.i386.rpm
#rpm -i freenx-0.3.1-0.fdr.0.noarch.rpm
3、配置nxserver
# /usr/bin/nxsetup ——install
Setting up /etc/nxserver ……done
Setting up /var/lib/nxserver/db ……done
Setting up /var/log/nxserver.log ……done
Setting up known_hosts and authorized_keys2 ……done
Setting up permissions ……done
Ok, nxserver is ready.
PAM authentication enabled:
All users will be able to login with their normal passwords.
PAM authentication will be done through SSH.
Please ensure that SSHD on localhost accepts password authentication.
You can change this behaviour in the /etc/nxserver/node.conf file.
Have Fun!
4、添加用户和密码
# nxserver ——adduser x1
NX> 100 NXSERVER - Version 1.4.0-44 OS (GPL)
NX> 1000 NXNODE - Version 1.4.0-44 OS (GPL)
NX> 716 Public key added to: /home/x1/.ssh/authorized_keys2
NX> 1001 Bye.
NX> 999 Bye
[root@host tmp]# nxserver ——passwd x1
NX> 100 NXSERVER - Version 1.4.0-44 OS (GPL)
New password:
Password changed.
NX> 999 Bye
说明:x1用户必须是服务器已经存在的用户。