Clik here to view.
How to use debsecan command in Linux with examplesnixCraft
The debsecan command is an essential tool for developers and sysadmins using Debian or Ubuntu Linux. It analyzes the list of installed packages on the current host and reports any vulnerabilities found...
View ArticleClik here to view.
How do I find out my timezone in Linux?nixCraft
You can find the timezone in Linux using the command line. The easiest way to do this is to type the "timedatectl" command and look for the "timezone" line when using modern Linux distros with systemd....
View ArticleClik here to view.
The repository ‘http://deb.debian.org/debian buster-backports Release’ no...
When you run the sudo apt update, you may see the following message or error on a Debian Linux:Err:5 http://deb.debian.org/debian buster-backports Release 404 Not Found [IP: 146.75.34.132 80] Reading...
View ArticleClik here to view.
How to configure AWS SES with Postfix MTA on Debian LinuxnixCraft
AWS SES (Amazon Simple Email Service) is a cloud-based email-sending service that is both reliable and cost-effective. This service is offered by Amazon Web Services. Postfix is a popular email server...
View ArticleClik here to view.
How to Upgrade Ubuntu 22.04 to 24.04 LTS: A Complete GuidenixCraft
Ubuntu 24.04 LTS (Noble Numbat) was launched on April 25th, 2024. This new version will be supported for five years until June 2029. The armhf architecture now provides support for the Year 2038...
View ArticleHow to Upgrade Ubuntu 22.04 to 24.04 LTS: A Complete GuideOpensource Flare✨
{nixCraft Patreon supporters content}Below is a sneak peek of this content! Ubuntu 24.04 LTS (Noble Numbat) was launched on April 25th, 2024. This new version will be supported for five years until...
View ArticleClik here to view.
How to add cron job entry for acme.shnixCraft
Recently, I had a learning experience with cron jobs and acme.sh. acme.sh is an excellent tool that simplifies the management of Let's Encrypt TLS (SSL) certificates. It makes obtaining and renewing...
View ArticleClik here to view.
How to add bash auto completion in Debian LinuxnixCraft
Bash is a command language interpreter compatible with sh. It can execute commands read from a file or keyboard. On Debian Linux, bash-completion is a set of shell functions that uses Bash's...
View ArticleClik here to view.
How to find hidden processes and ports on Linux/Unix/WindowsnixCraft
Unhide is a little handy forensic tool to find hidden processes and TCP/UDP ports by rootkits / LKMs or by another hidden technique. This tool works under Linux, Unix-like system, and MS-Windows...
View ArticleHow to perform find and replace operations within a visual selection in...
Here's a quick tip for vim users. You can perform find and replace operations within a visual selection in Vim for text or code block. Visual selection for finding and replacing text in Vim allows...
View ArticleHow to Pin Versions in Yum or Dnf for RHEL or CentOS LinuxnixCraft
CentOS, RHEL (Red Hat Enterprise Linux), Fedora and other clones of RHEL, such as Oracle, Alma, and Rocky, offer support for version pinning. This feature allows developers and system administrators to...
View ArticleA Bash Script to Read All Command Line Arguments into an Array: Simplify...
If you are writing a Bash shell script, you should read command-line arguments into an array for some time. This allows us to process any number of arguments provided when the script is run. This makes...
View ArticleClik here to view.
How to copy permissions from one file to another on LinuxnixCraft
I need to copy or clone file ownership and permissions from another file on Linux. Is there a bash command line option to clone the user, group ownership and permissions on a file from another file on...
View ArticleClik here to view.
How to enable Debian 12 Backports repositorynixCraft
The Debian Linux 12 backports repository offers updated versions of software packages for Debian Stable releases. These packages are sourced from Testing (and sometimes Unstable) branches of Debian,...
View ArticleClik here to view.
Linux/Unix: pstree Command Examples: See A Tree Of ProcessesnixCraft
I am a new Linux user. How do I display the process on the Linux based server or desktop/laptop in easy to read tree format using bash shell prompt?Love this? sudo share_on: Twitter - Facebook -...
View ArticleClik here to view.
How to download a file with curl on Linux/Unix command linenixCraft
I am a new macOS Unix user. I am writing a small bash shell script. How do I download file directly from the command-line interface using curl? How can I download file with cURL on a Linux or Unix-like...
View ArticleHow to install dnscrypt-proxy on Debian Linux 11/12nixCraft
DNSCrypt-proxy is an open-source and free software designed to encrypt DNS traffic, thus protecting it from eavesdropping and manipulation. This is also useful to evade DNS censorship when...
View ArticleClik here to view.
How to add an IP alias to an EC2 instance on Debian/Ubuntu LinuxnixCraft
An IP alias on Debian, Ubuntu, or any other Linux distros refers to assigning multiple IP addresses to a single network interface. A single network interface card (NIC) can respond to multiple IP...
View ArticleClik here to view.
How to use find command to delete all *.log files created in last 90 days...
I have log files created whenever I patch or rebuild Linux containers. They are taking disk space. The logs are helpful if something fails. Otherwise, after a few weeks, those log files have no usage...
View ArticleClik here to view.
How to Set Up UFW Firewall on Ubuntu 24.04 LTS in 5 MinutesnixCraft
A Ubuntu 24.04 LTS comes with UFW (uncomplicated firewall) that protects the desktop or server against unauthorized access. UFW is an easy-to-use frontend app for a Linux packet filtering system called...
View Article