OpenSSH is a widely used SSH (secure shell) server and client used in the Unix world, including in Linux, Mac OS X, and BSD operating systems. OpenSSH allows for secure logins to a remote system. While the current version of OpenSSH is 8.6, there are … Read more
MongoDB is a popular database engine used in conjunction with various scripting languages, particularly Python and Rails. Its strongest point is JSON-like data storage, which allows for the natural processing of data stored in the database. The query used by MongoDB is also in the … Read more
A cronjob is a scheduled task in Unix and Unix-like operating system environments, including Linux, Mac OS X, and FreeBSD. The operating system can execute various scheduled tasks, from opening a file to shutting down a system completely. Cronjobs can also be configured to run … Read more
Zip file is a ubiquitous file type that allows users to compress files and transfer a lot of files at once with ease. This file type is supported by virtually all operating systems. The versatility of Zip file is also used by web developers, who … Read more
Linux is an operating system suited for software development. In Linux, you can build and run various software written in different languages, such as C, C++, Python, and Java. However, in default, mainstream Linux distributions do not bundle development tools – they have to be … Read more
CentOS is a versatile Linux distribution that allows you to install various applications, covering a lot of your needs. One of the niches that CentOS covers nicely is to be a server, particularly TFTP server. What is TFTP, and how is it different from a … Read more
Sudo, or superuser do is a very powerful command in Linux. It essentially allows you to run the command as root, the highest level of user in the Linux hierarchy, and analogous to administrator user account in Windows. Root users can execute very sensitive commands, … Read more
Nowadays, the use of virtual machines is widespread as virtualization allows you to run more than one operating system on one computer at the same time. One of the most popular hypervisors to run virtual machine is VMware. With VMware Workstation, you can install various … Read more
If you have used Linux or other Unix-based operating systems (like FreeBSD or Mac OS X), you might be familiar with SSH, Telnet, or both. They are used for accessing systems remotely through the command line interface (CLI). Although they are often used interchangeably, they … Read more
This annoying errors happened to our team few days ago when we were trying to migrate a site from one Linux server to another. So on the current server we compressed all the website files into tar.gz archive and the dump the MySQL database using … Read more