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@ -52,18 +52,16 @@ export DISPLAY=:10
xfdesktop xfdesktop
``` ```
# xrdp 远程访问 linux 桌面流程分析 # xrdp 远程访问 linux 桌面流程分析（ 重要 ）
1. xrdp 服务依赖 xrdp-sesman 服务 1. xrdp 服务依赖 xrdp-sesman 服务
我们可以通过 grep 全局查找 xrdp-sesman，发现下面这句 我们可以通过 grep 全局查找 xrdp-sesman，发现下面这句
```shell ```shell
./lib/systemd/system/xrdp.service:4:Requires=xrdp-sesman.service ./lib/systemd/system/xrdp.service:4:Requires=xrdp-sesman.service
``` ```
因此 xrdp 启动时，肯定 xrdp-sesman 也相应启动，具体机制待研究(TODO) 因此 xrdp 启动时，肯定 xrdp-sesman 也相应启动，具体机制待研究(TODO)
2. 配置文件 /etc/xrdp/sesman.ini 2. 配置文件 /etc/xrdp/sesman.ini
```shell ```shell
[Globals] [Globals]
ListenAddress=127.0.0.1 ListenAddress=127.0.0.1
@ -71,7 +69,6 @@ ListenPort=3350
``` ```
3. 确认 xrdp 和 xrdp-sesman 服务 3. 确认 xrdp 和 xrdp-sesman 服务
```shell ```shell
root@freeabc:/# netstat -anpt | grep xrdp root@freeabc:/# netstat -anpt | grep xrdp
tcp6 0 0 :::3389 :::* LISTEN 6288/xrdp tcp6 0 0 :::3389 :::* LISTEN 6288/xrdp
@ -255,7 +252,6 @@ into $XDG_CACHE_HOME/sessions/.
具体配置文件就是 /usr/local/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-session.xml 具体配置文件就是 /usr/local/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-session.xml
```xml ```xml
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<channel name="xfce4-session" version="1.0"> <channel name="xfce4-session" version="1.0">
<property name="general" type="empty"> <property name="general" type="empty">
<property name="FailsafeSessionName" type="string" value="Failsafe"/> <property name="FailsafeSessionName" type="string" value="Failsafe"/>
@ -304,11 +300,17 @@ into $XDG_CACHE_HOME/sessions/.
cp /root/test/a/usr/local/etc/* /usr/local/etc/ -rf cp /root/test/a/usr/local/etc/* /usr/local/etc/ -rf
2. 解决 Cannot read private key file /etc/xrdp/key.pem: Permission denied 2. 解决 Cannot read private key file /etc/xrdp/key.pem: Permission denied
```shell
adduser xrdp ssl-cert adduser xrdp ssl-cert
reboot reboot
```
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 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
```shell ```shell
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 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
``` ```
这样就可以优先加载我们编译的动态库了 这样就可以优先加载我们编译的动态库了
4. xfce4-session 其实相应的配置也可以通过命令行工具查看
xfconf-query -c xfce4-session -p /sessions/Failsafe/Client3_Command
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。