


How to remotely connect to the Linux desktop:
1. Ensure that Linux is a version with a desktop interface
2. Install xrdp, xrdp is in the EPEL warehouse It can be used, so configure the EPEL repository: sudo rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
3. Install the plug-in: sudo - y yum install xrdp, the results are as follows:
[hadoop@master ~]$ sudo yum -y install xrdp Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile epel/x86_64/metalink | 8.5 kB 00:00:00 * base: mirrors.163.com * epel: ftp.cuhk.edu.hk * extras: mirrors.163.com * updates: ftp.sjtu.edu.cn epel | 4.7 kB 00:00:00 http://ftp.cuhk.edu.hk/pub/linux/fedora-epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel Trying other mirror. epel | 3.2 kB 00:00:00 (1/3): epel/x86_64/group_gz | 88 kB 00:00:00 (2/3): epel/x86_64/updateinfo | 943 kB 00:00:15 (3/3): epel/x86_64/primary | 3.6 MB 00:01:37 epel 12687/12687 Resolving Dependencies --> Running transaction check ---> Package xrdp.x86_64 1:0.9.7-1.el7 will be installed --> Processing Dependency: xorgxrdp for package: 1:xrdp-0.9.7-1.el7.x86_64 --> Running transaction check ---> Package xorgxrdp.x86_64 0:0.2.7-1.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ============================================================================================================================================================================================== Package Arch Version Repository Size ============================================================================================================================================================================================== Installing: xrdp x86_64 1:0.9.7-1.el7 epel 416 k Installing for dependencies: xorgxrdp x86_64 0.2.7-1.el7 epel 62 k Transaction Summary ============================================================================================================================================================================================== Install 1 Package (+1 Dependent package) Total download size: 478 k Installed size: 2.2 M Downloading packages: warning: /var/cache/yum/x86_64/7/epel/packages/xorgxrdp-0.2.7-1.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID 352c64e5: NOKEY ] 0.0 B/s | 0 B --:--:-- ETA Public key for xorgxrdp-0.2.7-1.el7.x86_64.rpm is not installed (1/2): xorgxrdp-0.2.7-1.el7.x86_64.rpm | 62 kB 00:00:01 (2/2): xrdp-0.9.7-1.el7.x86_64.rpm | 416 kB 00:00:07 ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 62 kB/s | 478 kB 00:00:07 Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 Importing GPG key 0x352C64E5: Userid : "Fedora EPEL (7) <epel@fedoraproject.org>" Fingerprint: 91e9 7d7c 4a5e 96f1 7f3e 888f 6a2f aea2 352c 64e5 Package : epel-release-7-11.noarch (installed) From : /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 Running transaction check Running transaction test Transaction test succeeded Running transaction Warning: RPMDB altered outside of yum. ** Found 11 pre-existing rpmdb problem(s), 'yum check' output follows: icedtea-web-1.7.1-1.el7.x86_64 has missing requires of java-1.8.0-openjdk icedtea-web-1.7.1-1.el7.x86_64 has missing requires of jpackage-utils icedtea-web-1.7.1-1.el7.x86_64 has missing requires of jpackage-utils jline-1.0-8.el7.noarch has missing requires of java >= ('0', '1.5', None) jline-1.0-8.el7.noarch has missing requires of jpackage-utils 1:libreoffice-core-5.3.6.1-10.el7.x86_64 has missing requires of java-headless >= ('1', '1.6', None) 1:libreoffice-ure-5.3.6.1-10.el7.x86_64 has missing requires of libjvm.so()(64bit) rhino-1.7R5-1.el7.noarch has missing requires of jpackage-utils rhino-1.7R5-1.el7.noarch has missing requires of jpackage-utils tagsoup-1.2.1-8.el7.noarch has missing requires of jpackage-utils tagsoup-1.2.1-8.el7.noarch has missing requires of jpackage-utils >= ('0', '1.6', None) Installing : xorgxrdp-0.2.7-1.el7.x86_64 1/2 Installing : 1:xrdp-0.9.7-1.el7.x86_64 2/2 Verifying : xorgxrdp-0.2.7-1.el7.x86_64 1/2 Verifying : 1:xrdp-0.9.7-1.el7.x86_64 2/2 Installed: xrdp.x86_64 1:0.9.7-1.el7 Dependency Installed: xorgxrdp.x86_64 0:0.2.7-1.el7 Complete!
4. Install plug-in: sudo yum -y install tigervnc-server
5. Start service: /bin/systemctl start xrdp.service
[hadoop@master ~]$ /bin/systemctl start xrdp.service ==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units === Authentication is required to manage system services or units. Authenticating as: root Password: ==== AUTHENTICATION COMPLETE === [hadoop@master ~]$
Remotely connect to the Linux graphical desktop on Windows:
1. Open the remote desktop tool:
2. Enter the Linux IP address and click after reading the warning. "Yes"
3. Enter the Linux username and password
Recommended related article tutorials:linux tutorial
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MaintenanceModeinLinuxisaspecialbootenvironmentforcriticalsystemmaintenancetasks.Itallowsadministratorstoperformtaskslikeresettingpasswords,repairingfilesystems,andrecoveringfrombootfailuresinaminimalenvironment.ToenterMaintenanceMode,interrupttheboo

The core components of Linux include kernel, file system, shell, user and kernel space, device drivers, and performance optimization and best practices. 1) The kernel is the core of the system, managing hardware, memory and processes. 2) The file system organizes data and supports multiple types such as ext4, Btrfs and XFS. 3) Shell is the command center for users to interact with the system and supports scripting. 4) Separate user space from kernel space to ensure system stability. 5) The device driver connects the hardware to the operating system. 6) Performance optimization includes tuning system configuration and following best practices.

The five basic components of the Linux system are: 1. Kernel, 2. System library, 3. System utilities, 4. Graphical user interface, 5. Applications. The kernel manages hardware resources, the system library provides precompiled functions, system utilities are used for system management, the GUI provides visual interaction, and applications use these components to implement functions.

Linux maintenance mode can be entered through the GRUB menu. The specific steps are: 1) Select the kernel in the GRUB menu and press 'e' to edit, 2) Add 'single' or '1' at the end of the 'linux' line, 3) Press Ctrl X to start. Maintenance mode provides a secure environment for tasks such as system repair, password reset and system upgrade.

The steps to enter Linux recovery mode are: 1. Restart the system and press the specific key to enter the GRUB menu; 2. Select the option with (recoverymode); 3. Select the operation in the recovery mode menu, such as fsck or root. Recovery mode allows you to start the system in single-user mode, perform file system checks and repairs, edit configuration files, and other operations to help solve system problems.

The core components of Linux include the kernel, file system, shell and common tools. 1. The kernel manages hardware resources and provides basic services. 2. The file system organizes and stores data. 3. Shell is the interface for users to interact with the system. 4. Common tools help complete daily tasks.

The basic structure of Linux includes the kernel, file system, and shell. 1) Kernel management hardware resources and use uname-r to view the version. 2) The EXT4 file system supports large files and logs and is created using mkfs.ext4. 3) Shell provides command line interaction such as Bash, and lists files using ls-l.

The key steps in Linux system management and maintenance include: 1) Master the basic knowledge, such as file system structure and user management; 2) Carry out system monitoring and resource management, use top, htop and other tools; 3) Use system logs to troubleshoot, use journalctl and other tools; 4) Write automated scripts and task scheduling, use cron tools; 5) implement security management and protection, configure firewalls through iptables; 6) Carry out performance optimization and best practices, adjust kernel parameters and develop good habits.


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