Linux and Security - Information Technology Zone

Working with PDF files on Linux

Network World

DECEMBER 10, 2024

Security: PDFs are inherently secure, especially when encryption and password protection are used. PDF tools on Linux Most if not all Linux distributions provide PDF viewers and tools that allow saving documents as PDF files, but not necessarily PDF editors. In addition, Foxit PDF Reader is free and available for Linux.

Linux

Linux Adobe Open Source Tools

Linux Foundation Networking shares new AI projects, milestone releases

Network World

APRIL 2, 2025

The Linux Foundations networking division (LF Networking) is continuing to grow both its mandate and project roster in 2025. Top AI applications : Network automation leads at 57%, followed by security at 50% and predictive maintenance at 41%. AI in networking : 74% see open source as foundational to AI success in networks.

Linux

Linux Network Open Source Survey

Red Hat Enterprise Linux 9.5 gains security, networking upgrades

Network World

NOVEMBER 15, 2024

Red Hat is out this week with the latest milestone update of its flagship Linux platform. Red Hat Enterprise Linux 9.5 Red Hat Enterprise Linux 9.x introduces significant networking improvements designed to enhance connectivity and security across hybrid environments. RHEL) became generally available on Nov.

Linux

Linux Network Enterprise Enterprise

Webinars

Automation, Evolved: Your New Playbook For Smarter Knowledge Work

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How to examine files on Linux

Network World

OCTOBER 24, 2024

There are many types of files on Linux systems and numerous ways to look at them, from listing permissions to viewing content. Permissions and ownership Listing files on Linux with the ls -l command provides information on the file’s owner and associated group. You just need to pick the right command to get the information you need.

Linux

Linux How To Examples Groups

At long last, OpenStack (now known as OpenInfra Foundation) joins Linux Foundation

Network World

MARCH 12, 2025

One of the leading options was to join the Linux Foundation, but that didnt happen. Now, OpenStack and the OpenInfra Foundation are moving to the Linux Foundation. The Linux Foundation has emerged over the last 20 years to be the preeminent open-source organization for commercially viable technologies.

Linux

Linux Open Source Government Artificial Intelligence

CompTIA courts IT newcomers with ‘on-ramp’ network, security courses

Network World

DECEMBER 4, 2024

CompTIA a+ Network and CompTIA a+ Cyber courses will provide individuals with the foundational knowledge to start a tech career in networking and security, according to IT certification and training body CompTIA. Priced at $499, the course includes some 31 hours of instruction and covers the skills to secure devices and home networks.

Course

Course Network Security Linux

Linux Foundation’s L3AF brings zero-downtime updates to eBPF network management

Network World

FEBRUARY 3, 2025

The Linux Foundations networking division (LF Networking) is helping to address that challenge with the L3AF project, which is based on eBPF (extended Berkeley Packet Filter ) technology. He explained that L3AF offers deep visibility into network infrastructure components that are usually hidden outside of the Linux kernel.

Linux

Linux Network Retail Devops

Microsoft gives Linux a security boost with these new attack detection tools

Tech Republic Security

NOVEMBER 19, 2020

Linux endpoint detection and response will help Microsoft Defender customers secure Linux servers and networks against security nasties.

Linux

Linux Microsoft Security Tools

10 essential Linux tools for network and security pros

Network World

APRIL 7, 2022

Picking just 10 Linux open source security tools isn’t easy, especially when network professionals and security experts have dozens if not several hundred tools available to them. There are different sets of tools for just about every task—network tunneling, sniffing, scanning, mapping.

Linux

Linux Tools Network Security

Ubuntu namespace vulnerability should be addressed quickly: Expert

Network World

MARCH 28, 2025

Linux admins who have enabled the unprivileged user namespace restriction in their recent Ubuntu environments should take action to close three new vulnerabilities that allow a threat actor to bypass the supposed protection. But it can be a problem if an administrator relies on namespaces for additional security.

Linux

Linux Programming Security Applications

Securing Linux Policy

Tech Republic Security

SEPTEMBER 4, 2023

Linux is a powerful and customizable operating system that has been the backbone of many businesses for decades. This policy from TechRepublic Premium provides guidelines for securing Linux on company computers and computers used to conduct company business. From the policy: DEVELOP TEMPLATES BASED ON.

Linux

Linux Policies Security Guidelines

IBM extends z15 mainframe family, intensifies Linux security

Network World

APRIL 14, 2020

IBM continued to reshape the mainframe with an eye toward further integrating it within hybrid clouds and securing Linux -based workloads. On the hardware side, IBM rolled out two entry-level, 19” single-frame, air-cooled platforms, the z15 Model T02 and LinuxONE III Model LT2.

IBM

IBM Linux Security Hardware

Parrot OS Security edition is a Linux desktop distribution geared for security admins

Tech Republic Security

APRIL 22, 2021

Security professionals would be well-served with this Linux distribution that offers a wide range of penetration and vulnerability testing tools.

Linux

Linux Security Tools

How to properly secure sysctl on Linux

Tech Republic Security

MAY 7, 2020

Protecting your Linux servers against SYN attacks and IP spoofing isn't nearly as hard you think. Jack Wallen shows you how.

Linux

Linux How To Security

Linux in your car: Red Hat’s milestone collaboration with exida

Network World

JUNE 17, 2024

Red Hat today announced the Linux math library (libm.so While it may not be obvious to all of us, Linux is playing an increasingly important role in the automotive industry. In fact, even the car you’re driving today could be using Linux in some capacity. Open source places a huge role in the automotive use of Linux.

Linux

Linux Automotive Open Source Operating Systems

Royal ransomware spreads to Linux and VMware ESXi

Tech Republic Security

FEBRUARY 10, 2023

A new Linux version of Royal ransomware is targeting VMware ESXi virtual machines. Learn more about this security threat and how to protect from it. The post Royal ransomware spreads to Linux and VMware ESXi appeared first on TechRepublic.

Vmware

Vmware Linux Virtualization Security

5 tips for securing SSH on your Linux servers

Tech Republic Security

JULY 19, 2022

Jack Wallen offers 5 tips for securing Linux that you can take care of in 5 minutes or less. The post 5 tips for securing SSH on your Linux servers appeared first on TechRepublic.

Linux

Linux Security Open Source

How to create a Linux user that cannot log in

Tech Republic Security

FEBRUARY 25, 2020

For security reasons, you might need to create a Linux user without the ability to log in. Jack Wallen shows you how.

Linux

Linux How To Security

Linux security: Cmd provides visibility, control over user activity

Network World

FEBRUARY 26, 2019

There's a new Linux security tool you should be aware of — Cmd (pronounced "see em dee") dramatically modifies the kind of control that can be exercised over Linux users. Provided by a company of the same name, Cmd focuses on cloud usage. Provided by a company of the same name, Cmd focuses on cloud usage.

Linux

Linux Security Exercises Tools

How to install and use Firejail on Linux

Tech Republic Security

DECEMBER 24, 2019

Firejail allows you to easily sandbox Linux applications. Find out how to add this extra layer of security.

Linux

Linux How To Applications Security

22 essential security commands for Linux

Network World

MAY 22, 2018

There are many aspects to security on Linux systems – from setting up accounts to ensuring that legitimate users have no more privilege than they need to do their jobs. This is look at some of the most essential security commands for day-to-day work on Linux systems. sudo adduser shark Adding user `shark'.

Linux

Linux Security Groups Video

Linux 101: How to block users from setting up their own cron jobs

Tech Republic Security

FEBRUARY 19, 2021

Jack Wallen shows you how to gain a bit more security on your Linux servers by blocking users from adding cron jobs.

Linux

Linux How To Security

How to install Webmin on Rocky Linux

Tech Republic Security

AUGUST 13, 2021

With Webmin, you can better secure and manage your instances of Rocky Linux. Jack Wallen walks you through the process of getting this web-based tool up and running.

Linux

Linux How To Tools Security

Linux and open source: The biggest issue in 2020

Tech Republic Security

NOVEMBER 18, 2020

This year was rough for all involved--even Linux and open source didn't come through unscathed. See what Jack Wallen considers to be the biggest issue for Linux in 2020.

Open Source

Open Source Linux

New Alchimist attack framework hits Windows, Linux and Mac

Tech Republic Security

OCTOBER 13, 2022

The post New Alchimist attack framework hits Windows, Linux and Mac appeared first on TechRepublic. The attack framework of probable Chinese origin used by cybercriminals has been discovered.

Linux

Linux Windows Open Source Malware

How to install fail2ban on Rocky Linux and AlmaLinux

Tech Republic Security

SEPTEMBER 3, 2021

Fail2ban should be on every one of your Linux servers. If you've yet to install it on either Rocky Linux or AlmaLinux, Jack Wallen is here to help you out with that.

Linux

Linux How To

Meta offers Llama AI to US government for national security

CIO Business Intelligence

NOVEMBER 5, 2024

Meta will allow US government agencies and contractors in national security roles to use its Llama AI. As open-source models become more capable and more widely adopted, a global open-source standard for AI models is likely to emerge, as it has with technologies like Linux and Android.”

Government

Government Open Source Security Training

How to utilize openssl in Linux to check SSL certificate details

Tech Republic Security

SEPTEMBER 13, 2021

SSL certificates are an integral component in securing data and connectivity to other systems. Learn tips on how you can use the Linux openssl command to find critical certificate details.

Linux

Linux How To Security System

Trend Micro's Linux Threat Report identifies the most vulnerable distributions and biggest security headaches

Tech Republic Security

AUGUST 23, 2021

Analysts reviewed 13 million security incidents and found that end-of-life versions of Linux distributions were at the biggest risk.

Linux

Linux Security Trends Report

SUSE Edge upgrade targets Kubernetes and Linux at the edge

Network World

OCTOBER 15, 2024

Open source and Linux platform vendor SUSE is looking to help organizations solve some of the complexity and challenges of edge computing with the company’s SUSE Edge 3.1 SUSE Edge integrates SUSE Linux Micro, which is an optimized Linux distribution for smaller deployments based on the company’s flagship SUSE Linux Enterprise (SLE).

Linux

Linux Load Balancer Open Source Network

The Linux Foundation announces collective to enhance open source software security

Tech Republic Security

AUGUST 3, 2020

The newly formed Open Source Security Foundation includes titans in technology such as Google, Intel, Microsoft, IBM, and more.

Open Source

Open Source Linux Security IBM

How to View Your SSH Keys in Linux, macOS and Windows

Tech Republic Security

JUNE 29, 2023

If you're not sure how to view your SSH certificates, this article walks you through the steps on Linux, macOS and Windows. The post How to View Your SSH Keys in Linux, macOS and Windows appeared first on TechRepublic.

Linux

Linux Windows How To Open Source

Key rules for Linux sysadmins

Network World

AUGUST 9, 2024

You need to know how to fix things when something breaks down, how to keep systems and data secure , how to monitor performance, how to manage backups , and how to craft clever scripts that make your work more consistent and save you time to do all the rest of your work. I spent more than 30 years managing Linux servers. Stay happy.

Linux

Linux Disaster Recovery Backup System

Linux 101: How to give users sudo privileges on Ubuntu and Red Hat-based Linux distributions

Tech Republic Security

MARCH 29, 2021

New Linux admins need to know how to give and take sudo privileges from users. Jack Wallen shows you how on both Ubuntu- and Red Hat-based Linux distributions.

Linux

Linux How To

How to properly secure sysctl on Linux

Tech Republic Security

MAY 28, 2020

Protecting your Linux servers against SYN attacks and IP spoofing isn't nearly as hard you think. Jack Wallen shows you how.

Linux

Linux How To Security

Google: We're funding developers to work full-time on Linux security

Tech Republic Security

FEBRUARY 25, 2021

Two developers, sponsored by Google, will dedicate their time to addressing vulnerabilities in the Linux kernel as part of a wider effort to improve the security of open-source software.

Linux

Linux Google Development Open Source

Snowflake is the Linux SSH GUI you didn't know you needed

Tech Republic Security

JANUARY 29, 2020

Is a Linux SSH GUI in your future? Jack Wallen believes once you try Snowflake, there's no going back.

Linux

How to enforce password complexity on Linux

Network World

OCTOBER 19, 2020

Deploying password-quality checking on your Debian-based Linux servers can help ensure that your users assign reasonably secure passwords to their accounts, but the settings themselves can be a bit misleading.

Linux

Linux How To Examples Network

How to check for and stop DDoS attacks on Linux

Tech Republic Security

JANUARY 21, 2021

Jack Wallen walks you through some of the steps you can take to check for and mitigate distributed denial of service attacks on a Linux server.

Linux

Linux How To

Kali Linux 2022.1 is your one-stop-shop for penetration testing

Tech Republic Security

FEBRUARY 24, 2022

Kali Linux has been a fan-favorite for penetration testing for a long time, and with a refresh and new tools, the latest iteration is better than ever. The post Kali Linux 2022.1 is your one-stop-shop for penetration testing appeared first on TechRepublic.

Linux

Linux Tools Open Source Security

How to use Restricted Shell to limit user access to a Linux system

Tech Republic Security

FEBRUARY 20, 2020

Learn how to prevent Linux users from executing certain commands and confining them to their home directory by employing rbash.

Linux

Linux How To System

How to hide files from any file manager on the Linux desktop

Tech Republic Security

AUGUST 13, 2020

Want to hide files and folders from your Linux desktop file manager? Jack Wallen shows you one handy method.

Linux

Linux How To

How to prevent fork bombs on your Linux development servers

Tech Republic Security

MARCH 28, 2023

Learn how to protect your Linux server from the fork bomb denial-of-service attack with this video tutorial by Jack Wallen. The post How to prevent fork bombs on your Linux development servers appeared first on TechRepublic.

Linux

Linux Development How To Video

Linux kernel security uproar: What some people missed

Tech Republic Security

APRIL 27, 2021

Commentary: It's not really very interesting that University of Minnesota researchers introduced bugs into the Linux kernel. What matters is what would have happened next.

Linux

Linux Security Research

Working with PDF files on Linux

Linux Foundation Networking shares new AI projects, milestone releases

Webinars

Trending Sources

Red Hat Enterprise Linux 9.5 gains security, networking upgrades

Webinars

How to examine files on Linux

At long last, OpenStack (now known as OpenInfra Foundation) joins Linux Foundation

CompTIA courts IT newcomers with ‘on-ramp’ network, security courses

Linux Foundation’s L3AF brings zero-downtime updates to eBPF network management

Microsoft gives Linux a security boost with these new attack detection tools

10 essential Linux tools for network and security pros

Ubuntu namespace vulnerability should be addressed quickly: Expert

Securing Linux Policy

IBM extends z15 mainframe family, intensifies Linux security

Parrot OS Security edition is a Linux desktop distribution geared for security admins

How to properly secure sysctl on Linux

Linux in your car: Red Hat’s milestone collaboration with exida

Royal ransomware spreads to Linux and VMware ESXi

5 tips for securing SSH on your Linux servers

How to create a Linux user that cannot log in

Linux security: Cmd provides visibility, control over user activity

How to install and use Firejail on Linux

22 essential security commands for Linux

Linux 101: How to block users from setting up their own cron jobs

How to install Webmin on Rocky Linux

Linux and open source: The biggest issue in 2020

New Alchimist attack framework hits Windows, Linux and Mac

How to install fail2ban on Rocky Linux and AlmaLinux

Meta offers Llama AI to US government for national security

How to utilize openssl in Linux to check SSL certificate details

Trend Micro's Linux Threat Report identifies the most vulnerable distributions and biggest security headaches

SUSE Edge upgrade targets Kubernetes and Linux at the edge

The Linux Foundation announces collective to enhance open source software security

How to View Your SSH Keys in Linux, macOS and Windows

Key rules for Linux sysadmins

Linux 101: How to give users sudo privileges on Ubuntu and Red Hat-based Linux distributions

How to properly secure sysctl on Linux

Google: We're funding developers to work full-time on Linux security

Snowflake is the Linux SSH GUI you didn't know you needed

How to enforce password complexity on Linux

How to check for and stop DDoS attacks on Linux

Kali Linux 2022.1 is your one-stop-shop for penetration testing

How to use Restricted Shell to limit user access to a Linux system

How to hide files from any file manager on the Linux desktop

How to prevent fork bombs on your Linux development servers

Linux kernel security uproar: What some people missed

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