How to Implement Effective Health Checks in HAProxy
Practical tutorial on how to implement an effective health check in the backend section of the HAProxy configuration file and how it works along with examples.
How to Connect to WiFi Network from the Command-Line on Linux Using NetworkManager
Tutorial on how to connect to your WiFi network from the command line on modern Linux distributions using the NetworkManager to manage the network devices.
How to Assign Multiple IPs to a Single Network Interface in Linux
The post How to Assign Multiple IPs to a Single Network Interface in Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides .The concept of creating or configuring multiple IP addresses on a single network interface is called IP aliasing, wh…
The Power of Linux “History Command” in Bash Shell
The post The Power of Linux “History Command” in Bash Shell first appeared on Tecmint: Linux Howtos, Tutorials & Guides .We frequently use the history command in our daily routine jobs to check the history of commands or to get information about comman…
Service vs. Systemctl
The service and systemctl are two command line utilities used to manage system services and belong to two different init systems, SysV, and systemd respectively.
Restart a Service using systemctl restart Command
To restart a service, use the systemctl command with the restart option and the service name. To list all the services use the ls /lib/system/system command.
Restart Network Service using systemctl Command
To restart the network on Linux using the systemctl command, use sudo systemctl restart NetworkManager.
Mount Windows Share on Linux using CIFS
To set the mount point on Linux, first create a mount point and then use the mount command with the -t cifs option.
Mount Windows NTFS Drive on Linux
To mount a Windows NTFS partition on Linux, first identify it using the parted command, create a mount point and then mount the partition using the mount command.
Linux systemctl reboot Command
The systemctl reboot command restarts the system in an organized way, since it is part of the system and is more aware of system services.
How to View Systemctl Logs
To view logs of a unit or service after a recent boot use systemctl status unit-name command. To view detailed logs of a unit or service use the journalctl -u unit-name command.
Linux Commands to Check Disk Partitions
The fdisk, cfdisk, sfdisk, lasblk, blkid, and df are the built-in Linux commands to check the disk partitions.
How to Switch Boot Targets with systemctl Command
To switch the boot target on Linux, the systemctl command is used with the set-default option and target file.
How to Use systemctl status Command
The systemctl is a command line utility used to manage system services, while the systemctl status command is used to view the status of a unit.
How to Use systemctl to Show Failed Units
To show failed units on Linux, the systemctl list-units –state=failed command is used. To fix the failed unit, use systemctl reset-failed command.
How to Use systemctl Command to Enable and Disable Services
The systemctl enable is used to set the service enabled on boot, while the systemctl disable does the opposite.
How to Start Docker Using systemctl Command
To start docker on Linux, the systemctl start command is used with sudo. By default, the docker services start on boot.
How to Mask a Service using systemctl Command
A service can be masked using the systemctl mask command with the service name. A masked service is permanently disabled.
How to List Serial Ports on Linux
There are three methods to list serial ports on Linux, through /sys/class directory, using dmesg command, or using Cutecom GUI application.
Systemd Service File
The systemd service files have .service extensions and contain the instructions that are required by systemd to manage a service.