vncserver无法启动
一、问题现象
运行vncserver的时候提示出错，查看vnc的日志发现如下错误日志
litin@linuxService:~/.vnc$ cat linuxService:4.log Xvnc Free Edition 4.1.1 - built Jul 31 2015 19:10:31 Copyright (C) 2002-2005 RealVNC Ltd. See http://www.realvnc.com for information on VNC. Underlying X server release 40300000, The XFree86 Project, Inc Sun Feb 11 16:20:23 2018 vncext: VNC extension running! vncext: Listening for VNC connections on port 5904 vncext: created VNC server for screen 0 error opening security policy file /etc/X11/xserver/SecurityPolicy Could not init font path element /usr/X11R6/lib/X11/fonts/Type1/, removing from list! Could not init font path element /usr/X11R6/lib/X11/fonts/Speedo/, removing from list! Could not init font path element /usr/X11R6/lib/X11/fonts/misc/, removing from list! Could not init font path element /usr/X11R6/lib/X11/fonts/75dpi/, removing from list! Could not init font path element /usr/X11R6/lib/X11/fonts/100dpi/, removing from list! Could not init font path element /usr/share/fonts/X11/75dpi/, removing from list! Could not init font path element /usr/share/fonts/X11/100dpi/, removing from list! AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host No protocol specified xsetroot: unable to open display ':4' AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host No protocol specified vncconfig: unable to open display ":4" 此版本的 gnome-terminal 已不再支持选项 "--login" ；您可能想要创建一个有期望设定的配置文件，然后使用新的“--profile”选项 AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host No protocol specified ** (gnome-terminal:3636): WARNING **: Could not open X display AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host No protocol specified 无法处理参数：无法打开显示： AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host No protocol specified AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host No protocol specified ** (gnome-session:3637): WARNING **: Could not open X display AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host No protocol specified ** (gnome-session:3637): WARNING **: 无法打开显示： AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host AUDIT: Sun Feb 11 16:20:26 2018: 3629 Xvnc4: client 1 rejected from local host
二、问题分析
问题的根源是在于SecurityPolicy打开不了（“error opening security policy file /etc/X11/xserver/SecurityPolicy“），猜测这个文件的读写权限有问题。
利用命令xauth -b list可以验证
litin@linuxService:~/.vnc$ xauth -b list xauth: /home/litin/.Xauthority not writable, changes will be ignored
三、解决方法
用chown 命令把文件”.Xauthority“改成当前用户名就可以成功启动vncserver了