How to solve the problem of service failure to start and configuration errors in Linux systems

There are many questions that Linux beginners often ask, "Does Linux have a Task Manager?", "How to open the Task Manager on Linux?" Users from Windows know that the Task Manager is very useful. You can open the Task Manager by pressing Ctrl+Alt+Del in Windows. This task manager shows you all the running processes and the memory they consume, and you can select and kill a process from the task manager program. When you first use Linux, you will also look for something that is equivalent to a task manager in Linux. A Linux expert prefers to use the command line to find processes, memory consumption, etc., but you don't have to

Did you know, how to check the creation date of an account on a Linux system? If you know, what can you do? Did you succeed? If yes, how to do it? Basically Linux systems don't track this information, so what are the alternative ways to get this information? You may ask why am I checking this? Yes, there are situations where you may need to review this information and it will be helpful to you at that time. You can use the following 7 methods to verify. Use /var/log/secure Use aureport tool Use .bash_logout Use chage command Use useradd command Use passwd command Use last command Method 1: Use /var/l

Zabbix's support for Chinese is not very good, but sometimes we still choose Chinese for management purposes. In the web interface monitored by Zabbix, the Chinese under the graphic icon will display small squares. This is incorrect and requires downloading fonts. For example, "Microsoft Yahei", "Microsoft Yahei.ttf" is named "msyh.ttf", upload the downloaded font to /zabbix/fonts/fonts and modify the two characters in the /zabbix/include/defines.inc.php file at define('ZBX_GRAPH_FONT_NAME','DejaVuSans');define('ZBX_FONT_NAME'

System-wide installation If you install a font system-wide, it will be available to all users. The best way to do this is to use RPM packages from the official software repositories. Before starting, open the "Software" tool in Fedora Workstation, or other tools using the official repository. Select the "Add-ons" category in the selection bar. Then select "Fonts" within the category. You'll see the available fonts similar to the ones in the screenshot below: When you select a font, some details will appear. Depending on several scenarios, you may be able to preview some sample text for the font. Click the "Install" button to add it to your system. Depending on system speed and network bandwidth, this process may take some time to complete

1. Find the fonts wingdings, wingdings2, wingdings3, Webdings, and MTExtra from the Internet. 2. Enter the main folder, press Ctrl+h (show hidden files), and check if there is a .fonts folder. If not, create one. 3. Copy the downloaded fonts such as wingdings, wingdings2, wingdings3, Webdings, and MTExtra to the .fonts folder in the main folder. Then start wps to see if there is still a "System missing font..." reminder dialog box. If not, just Success! Notes: wingdings, wingdin

Different CPU architectures mean that running DOS on the Raspberry Pi is not easy, but it is not much trouble. FreeDOS may be familiar to everyone. It is a complete, free and well-compatible operating system for DOS. It can run some older DOS games or commercial software, and can also develop embedded applications. As long as the program can run on MS-DOS, it can run on FreeDOS. As the initiator and project coordinator of FreeDOS, many users will ask me questions as an insider. The question I get asked most often is: "Can FreeDOS run on a Raspberry Pi?" This question is not surprising. After all, Linux runs very well on the Raspberry Pi

How to use one network cable to connect two ubuntu hosts to the Internet 1. Prepare host A: ubuntu16.04 and host B: ubuntu16.042. Host A has two network cards, one is connected to the external network and the other is connected to host B. Use the iwconfig command to view all network cards on the host. As shown above, the network cards on the author's A host (laptop) are: wlp2s0: This is a wireless network card. enp1s0: Wired network card, the network card connected to host B. The rest has nothing to do with us, no need to care. 3. Configure the static IP of A. Edit the file #vim/etc/network/interfaces to configure a static IP address for interface enp1s0, as shown below (where #==========

Experimental environment: OS: LinuxCentos7.4x86_641. View the current server time zone & list the time zone and set the time zone (if it is already the correct time zone, please skip it): #timedatectl#timedatectllist-timezones#timedatectlset-timezoneAsia/Shanghai2. Understanding of time zone concepts: GMT, UTC, CST, DSTUTC: The entire earth is divided into twenty-four time zones. Each time zone has its own local time. In international radio communication situations, for the sake of unification, a unified time is used, called Universal Coordinated Time (UTC). :UniversalTim