Trying to debug that Linux issue or need help installing it on another system? This is the right place for that and other Linux-related tips.
Total 46 articles.
In its basic form, find is easy. At the same time, it can be complex with the number of options, tests, and actions available. The find command is an incredibly powerful tool, and putting effort into learning it can be rewarding. It will help you in performing various system administration tasks efficiently, like disk space…
Nmap stands for “Network Mapper“, is one of the best open-source utility available now for network discovery and security auditing. Nmap sends packets and analyzes the response it gets to discover hosts and services on a computer network. It is one of the most widely used port scanners available today to help you find open ports and detecting…
Cybersecurity researchers revealed a new vulnerability that can affect devices in billions globally. It may take in its wake devices, including servers, workstations, desktops, laptops, IoT systems, and more operating on Windows and Linux systems. The researchers say that BootHole is a kind of buffer vulnerability capable of affecting all GRUB2 versions. It survives in…
Getting warning about “setting locale failed” while executing Perl on CentOS 8? I was trying to run Nikto and got this error. [[email protected] program]# ./nikto.pl -h $IPADDRESS perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LC_CTYPE = “UTF-8”, LANG = “en_US.UTF-8” are supported and…
DNF is the default package management system on most RPM-based Linux distributions now. DNF downloads packages from repositories installs, uninstall, and updates packages. It performs automatic dependency resolution for packages you are installing, updating, or removing and installs all packages needed to fulfill dependency requirements. On Fedora, it has been the default package manager since…
In this tutorial, I will talk about Prometheus and Grafana. You will learn to install both on CentOS/RHEL and understand how to use Prometheus and Grafana to monitor the Linux server. Introduction Grafana is a leading time-series, an open-source platform for visualization and monitoring. It allows you to query, visualize, set alerts, and understand metrics…
The default system and service manager for most Linux distributions now is systemd. The systemd process replaces the SysV init. It runs as the first process after the kernel boot and is responsible for bringing the Linux host up to the state where it can be used. It is responsible for starting and managing the…
One of the frequently used utilities by sysadmin is wget. It can be very handy during web related troubleshooting. What is wget command? wget command is a popular Unix/Linux command-line utility for fetching the content from the web. It is free to use and provides a non-interactive way to download files from the web. The…
The find is a powerful command-line tool that enables system administrators to locate and manage files and directories based on a wide range of search criteria. It can find files by their name, their type, or extension, size, permissions, etc. Besides locating files and directories, combining the find command with others enables you to take…
Even though Linux based systems are often considered impenetrable, there are still risks that need to be taken seriously. Rootkits, viruses, ransomware, and many other harmful programs can often attack and cause problems to Linux servers. No matter the operating system, taking security measures is a must for servers. Large brands and organizations have taken…
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