Synchronize your computer’s clock using the NTP
Coordinated Universal Time The Coordinated Universal Time (UTC) is the universally accepted time standard based on atomic clocks with leap seconds added judiciously to keep it in tune with the…
Coordinated Universal Time The Coordinated Universal Time (UTC) is the universally accepted time standard based on atomic clocks with leap seconds added judiciously to keep it in tune with the…
Alarm system call The alarm system call arranges for the SIGALRM signal to be sent to the calling process after s seconds. #include <unistd.h> unsigned int alarm (unsigned int s);…
Execution time A process has an execution time associated with it. The execution time comprises of two parts, the user time and the system time. The user time is the…
1.0 The system calendar time since the Epoch, 1970-01-01 00:00:00, UTC The Linux kernel maintains a system calendar time, which is initialized from the hardware real time clock (RTC) at…
The hardware clock There are two clocks in a Linux system, the hardware real time clock (RTC) and the Linux system time maintained by the kernel. In this tutorial, we…
The cron daemon helps in running jobs at predefined times periodically. However, the system needs to running at all times so that cron can can execute a job at the…
cron is a daemon that executes programs for users periodically at predefined times. The cron daemon or service is started by the init process during system initialization. cron comes from…
Backing up a Drupal site involves copying the website files and database to a local server. We copy the entire site root directory tree to the local server. Also, we…
Moving a Drupal site to a new host is quite easy. It can be summarized as just two steps - backing up the MySQL database and the web-site root directory…
rsync is a one-way file synchronization tool used in Linux and other Unix-like systems. It is used to ensure that the destination file(s) become an exact replica of corresponding file(s)…