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Update xfce4.md
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xfce4.md
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xfce4.md
@ -52,18 +52,16 @@ export DISPLAY=:10
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xfdesktop
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```
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# xrdp 远程访问 linux 桌面流程分析
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# xrdp 远程访问 linux 桌面流程分析( 重要 )
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1. xrdp 服务依赖 xrdp-sesman 服务
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我们可以通过 grep 全局查找 xrdp-sesman,发现下面这句
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```shell
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./lib/systemd/system/xrdp.service:4:Requires=xrdp-sesman.service
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```
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因此 xrdp 启动时,肯定 xrdp-sesman 也相应启动,具体机制待研究(TODO)
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2. 配置文件 /etc/xrdp/sesman.ini
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```shell
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[Globals]
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ListenAddress=127.0.0.1
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@ -71,7 +69,6 @@ ListenPort=3350
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```
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3. 确认 xrdp 和 xrdp-sesman 服务
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```shell
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root@freeabc:/# netstat -anpt | grep xrdp
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tcp6 0 0 :::3389 :::* LISTEN 6288/xrdp
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@ -255,7 +252,6 @@ into $XDG_CACHE_HOME/sessions/.
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具体配置文件就是 /usr/local/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-session.xml
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```xml
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<?xml version="1.0" encoding="UTF-8"?>
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<channel name="xfce4-session" version="1.0">
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<property name="general" type="empty">
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<property name="FailsafeSessionName" type="string" value="Failsafe"/>
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@ -304,11 +300,17 @@ into $XDG_CACHE_HOME/sessions/.
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cp /root/test/a/usr/local/etc/* /usr/local/etc/ -rf
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2. 解决 Cannot read private key file /etc/xrdp/key.pem: Permission denied
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```shell
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adduser xrdp ssl-cert
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reboot
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```
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3. 解决 libpango 库多版本的环境下,系统的低版本优先加载,导致 xfdesktop 不能正常启动的问题我们可以这么做
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```shell
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echo "LD_LIBRARY_PATH="/root/test/a/usr/lib:/root/test/a/usr/local/lib:/root/test/a/usr/lib/x86_64-linux-gnu" xfce4-session" > ~/.xsession
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```
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这样就可以优先加载我们编译的动态库了
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4. xfce4-session 其实相应的配置也可以通过命令行工具查看
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xfconf-query -c xfce4-session -p /sessions/Failsafe/Client3_Command
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我们可以逐行查看每个属性,然后通过 ps -aef | grep xf* 查看相应的进程是否正确启动,如果没有启动,就会导致出现问题,然后单独手工启动那个进程,查看是什么原因导致不能正常启动的,解决问题就非常简单了。
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