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可以用strace和perf工具看一下sshd在做什么,就容易分析出来原因了。
按照以下步骤操作:
1、更新/etc/apt/sources.list源
deb http://mirrors.aliyun.com/ubuntu precise main restricted
deb-src http://mirrors.aliyun.com/ubuntu precise main restricted
deb http://mirrors.aliyun.com/ubuntu precise-updates main restricted
deb-src http://mirrors.aliyun.com/ubuntu precise-updates main restricted
deb http://mirrors.aliyun.com/ubuntu precise universe
deb-src http://mirrors.aliyun.com/ubuntu precise universe
deb http://mirrors.aliyun.com/ubuntu precise-updates universe
deb-src http://mirrors.aliyun.com/ubuntu precise-updates universe
deb http://mirrors.aliyun.com/ubuntu precise multiverse
deb-src http://mirrors.aliyun.com/ubuntu precise multiverse
deb http://mirrors.aliyun.com/ubuntu precise-updates multiverse
deb-src http://mirrors.aliyun.com/ubuntu precise-updates multiverse
deb http://mirrors.aliyun.com/ubuntu precise-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu precise-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu precise-security main restricted
deb-src http://security.ubuntu.com/ubuntu precise-security main restricted
deb http://security.ubuntu.com/ubuntu precise-security universe
deb-src http://security.ubuntu.com/ubuntu precise-security universe
deb http://security.ubuntu.com/ubuntu precise-security multiverse
deb-src http://security.ubuntu.com/ubuntu precise-security multiverse
2、安装ubuntu所需的图形组件
如:sudo apt-get install gnome-panel gnome-settings-daemon metacity nautilus gnome-terminal
3、配置vnc,并启动vcn服务
4、通过vnc连接至ubuntu服务器或pc.