Linux kestrel-dotnetapp.service:在步骤EXEC sprowning/usr/local/dotnet时失败：权限被拒绝

我正在尝试使用MS中给出的步骤在Centos8中安装.NET Core（3.1）应用程序

符合Microsoft文档

/etc/systemd/system/kestrel dotnetapp.Service的服务文件

[Unit]  
Description= .NET Web API App for centos

[Service]
WorkingDirectory=/var/Application/netcoreapp31
ExecStart=/usr/local/dotnet /var/Application/netcoreapp31/helloapp.dll
Restart=always
# Restart service after 10 seconds if the dotnet service crashes:  
RestartSec=10
KillSignal=SIGINT
SyslogIdentifier=dotnetapp
User=user
Environment=ASPNETCORE_ENVIRONMENT=Production
Environment=DOTNET_PRINT_TELEMETRY_MESSAGE=false

[Install]
WantedBy=multi-user.target

当我执行sudo systemctl启动kestrel dotnetapp.service时

出现错误

Jun 04 22:51:28主机名systemd[1827]：kestrel-dotnetapp.service:无法执行命令：权限被拒绝
Jun 04 22:51:28主机名systemd[1827]：kestrel-dotnetapp.service:在执行生成/usr/local/dotnet步骤时失败：权限被拒绝
--主题：无法执行进程/usr/local/dotnet
--定义人：systemd

在下面找到ls-la：

[user@hostname dotnet]$ ls -la
total 108
drwxr-xr-x.  4 root root    94 Apr 22 09:34 .
drwxr-xr-x. 14 root root   154 Jun  4 21:11 ..
-rwxr-xr-x.  1 root root 73048 Apr 22 09:32 dotnet
drwxr-xr-x.  3 root root    17 Apr 22 09:34 host
-rw-r--r--.  1 root root  1116 Apr 22 09:29 LICENSE.txt
drwxr-xr-x.  4 root root    67 Apr 22 09:34 shared
-rw-r--r--.  1 root root 31330 Apr 22 09:29 ThirdPartyNotices.txt

“我的应用程序可交付成果”文件夹

[user@hostname Application]$ ls -la
total 8
drwxr-xr-x.  3 root root     26 Jun  4 20:53 .
drwxr-xr-x. 22 root root   4096 Jun  4 20:53 ..
drwxr-xr-x.  2  777 user 4096 Jun  4 20:45 netcoreapp31

---

当我们将ExecStart的路径更改为

ExecStart=/usr/local/dotnet/dotnet

时，发现服务正在启动。不知道为什么微软的博客上说，直到ExecStart=/usr/bin/dotnet就足够了

另外，如果Linux是SE，则服务文件不应位于/home目录中