Linux servers
Top Stories
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Tip
03 Dec 2021
DHCP client configuration for Linux, Windows and macOS
Network and system admins can use command-line and GUI tools to configure DHCP clients in Linux, Windows and macOS. Here's a breakdown of which commands to use for each OS. Continue Reading
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Tutorial
17 Nov 2021
Try these PowerShell Start-Job examples for more efficiency
It might take some effort to rework scripts to take advantage of PowerShell jobs capabilities, but it will free you to handle other work while running code behind the scenes. Continue Reading
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Tip
05 Nov 2021
These Posh-SSH examples pave the way to Linux management
Need to work with remote Linux systems? A PowerShell module with file-handling functionality can help Windows shops looking for a reliable management platform. Continue Reading
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Tip
04 Nov 2021
Top Unix commands: 50 must-know commands with examples
Use these 50 Unix commands to manage and modify files, navigate directories, monitor your network and users, gather data, and automate system tasks and processes. Continue Reading
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Tip
15 Oct 2021
Best practices for container security in the data center
Container sprawl and container repositories can introduce new vulnerabilities to a data center. Here's what organizations should watch out for and how to stay safe. Continue Reading
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Tip
14 Oct 2021
How to check your CPU in a Linux system
You can issue commands through your Linux CLI to gather CPU information, including detailed information on cores, class, virtualization support, architecture and usage. Continue Reading
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Feature
08 Oct 2021
Common Kubernetes terminology you should know
What are pods and nodes? How do namespaces differ from volumes? This list of common Kubernetes terms can give you a basic understanding of the container management platform. Continue Reading
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Tip
01 Oct 2021
Discover the three major CentOS clones
Free, open source AlmaLinux, Rocky Linux and VzLinux are clones of the popular CentOS Linux distribution, which became a rolling release from IBM Red Hat. Continue Reading
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Tip
28 Sep 2021
An introduction to using diff and patch together
Use the diff command in Linux to discover subtle differences between code files. Then, use the patch command to update those code files to match. Continue Reading
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Tutorial
12 Jul 2021
How to script a Bash shell argument
This tutorial teaches you how to add arguments to your Bash scripts, which can simplify and automate a variety of Linux tasks in the data center and eliminate hassle. Continue Reading
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News
27 Apr 2021
Red Hat Enterprise Linux 8.4 doubles down on edge computing
The latest version of RHEL gives users additional management features and includes capabilities that will serve as the foundation of Red Hat's edge computing initiative. Continue Reading
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Tip
29 Oct 2020
Red Hat vs. SUSE: How do these Linux distributions stack up?
See how two leading Linux open source software products -- RHEL and SLES -- compare when it comes to supported architectures, ease of use, support and pricing. Continue Reading
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News
29 Oct 2020
RHEL 8.3 updates target digital transformation
Red Hat has released RHEL 8.3 with features for users engaged in digital transformation projects. New System Roles improve security and stability. Continue Reading
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Tip
14 Oct 2020
Learn SELinux commands for management and troubleshooting
SELinux provides a more secure way to run Linux servers. Key commands for status, file management and troubleshooting can help you run SELinux smoothly on your infrastructure. Continue Reading
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Tip
29 Sep 2020
A look at the main differences of Bourne shell vs. Bash
Shells help admins run commands from the keyboard to the OS. Though Bourne shell and Bash are similar, there are differences in layout and code compatibility. Continue Reading
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Tip
14 Sep 2020
What admins should know about Microsoft Windows Terminal
There's a new terminal that puts a different spin on the traditional command-line tools used by Windows administrators with extensive functionality and customization options. Continue Reading
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Video
10 Sep 2020
Ubuntu Core tutorial: Run IoT devices on Linux
Linux OSes offer flexible IoT device management and have no upfront costs. Get Ubuntu Core up and connect your devices with the steps in this video tutorial. Continue Reading
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News
13 Aug 2020
IBM Z mainframes revived by Red Hat, AI and security
It's not quite the glory days of the 1960s, but IBM mainframes are getting by with a little help from open source friends. IBM discusses the boost and plans for security and AI. Continue Reading
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News
07 Aug 2020
Big Blue ties its IBM Z Series tighter to hybrid clouds
In its ongoing mission to keep mainframes relevant, IBM rolled out a raft of hardware and software offerings that move it closer to the heart of IT shops' hybrid cloud strategies. Continue Reading
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Feature
31 Jul 2020
4 FAQs to help master KVM management
When it comes to managing KVM, admins should do their homework and research common questions to better understand the technology and ensure peak performance. Continue Reading
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News
29 Jul 2020
Red Hat Enterprise Linux 8.3 beta released
The latest beta of Red Hat Enterprise Linux has new System Roles for logging and environmental metrics, along with improvements to help developers create more stable applications. Continue Reading
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Tip
22 Jul 2020
Top 5 enterprise Linux distributions to consider adopting
While Linux distributions all serve a similar purpose in the enterprise, organizations should still familiarize themselves with the different distributions to find the best fit. Continue Reading
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News
21 Jul 2020
New IBM Power systems offer pay-as-you-go pricing
IBM rolled out a low-end Power system with pay-as-you-go pricing to make it easier for users to deploy hybrid clouds for mission-critical applications. Continue Reading
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Tip
13 Jul 2020
Troubleshoot Linux kernel panic with the kdump crash tool
Kernel panic renders your system useless. With an NFS server and kdump crash tool, you can easily perform a root cause analysis and figure out how to bring a system back online. Continue Reading
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Tutorial
10 Jul 2020
PowerShell 7 remoting expands management horizons
Connecting to different operating systems to manage them from PowerShell requires SSH setup, which is less onerous in the version 7 release. Continue Reading
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Video
26 May 2020
Easily spin up a Docker Ubuntu container
Docker and Ubuntu make it possible for admins to use containers for Windows applications in the data center. Watch what's involved to get started with containerization. Continue Reading
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News
01 May 2020
Red Hat Enterprise Linux still central to Red Hat's strategy
While it may be overshadowed by OpenShift and Kubernetes, Red Hat Summit attendees were reminded that Red Hat Enterprise Linux still has a strategic role to play. Continue Reading
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News
16 Apr 2020
Lower-cost IBM z15 mainframes add security for multi-clouds
Two new low-end IBM z15 mainframes and security software aim to help users better prevent internal attacks, as well as monitor workloads across on-premises and multi-cloud environments. Continue Reading
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Feature
19 Feb 2020
Learn the main Linux OS components
Linux is one operating choice to run on your infrastructure. Get started with these terms to discover how the OS works and how it differs from Microsoft and Apple offerings. Continue Reading
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Tip
20 Dec 2019
Use GRUB to fix Linux boot problems
GRUB is a handy tool to help admins solve any Linux booting issues. Reinstalling or manually implementing GRUB are two main approaches to getting your system back up and running. Continue Reading
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Feature
10 Dec 2019
Comparing Linux distributions: Red Hat vs. Ubuntu
Before selecting a Linux distribution, compare Red Hat Enterprise Linux and Ubuntu when it comes to features, ease of use, licensing and documentation. Continue Reading
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Tip
03 Dec 2019
Top 4 open source automation tools for admins
Open source offerings are an easy way to bring automation into your organization. When selecting software, evaluate the user experience, main features offered and Linux support. Continue Reading
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Tip
11 Nov 2019
How to upgrade from VCSA 6.5 to 6.7 -- both online and off
Use the online VCSA management interface, VAMI, or an ISO file from VMware to get started with your online or offline VCSA upgrade. Continue Reading
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Tip
11 Nov 2019
Top 5 options for Linux certifications
Are you ready to expand your Linux knowledge? Here's a look at the latest courses, training content and exams available from professional groups and vendors. Continue Reading
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Feature
27 Sep 2019
The future of PowerShell begins to sharpen in focus
PowerShell's promise as a cross-platform management tool has come a long way, but much work still needs to be done for both Linux and Windows admins to pick up adoption. Continue Reading
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Tutorial
12 Aug 2019
83 useful Linux commands
Enterprise administrators and managers who use this guide of essential Linux commands, utilities and tools will find ways to manage files, get process status updates and more. Continue Reading
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News
08 Aug 2019
Red Hat Enterprise Linux 7.7 tailored for hybrid, multi-clouds
Red Hat released RHEL version 7.7 with features that make it easier to marry its legacy systems with the latest cloud-native applications, while urging users to move to RHEL 8. Continue Reading
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Feature
09 Jul 2019
Linux features beyond server management
Due to its open source nature, Linux is constantly gaining new capabilities. Here's a look at some common use cases and features. Continue Reading
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Tip
03 Jul 2019
How to manage Windows with Puppet
Administrators can modernize their organization's management model for both Linux and Windows operating systems with Puppet, a code-based tool, and available community support. Continue Reading
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Tip
17 Jun 2019
Linux on Windows helps systems administrators gain new skills
The line between Windows and Linux is starting to blur in most organizations. Here's what systems administrators need to know about working with Linux and Windows. Continue Reading
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Tip
23 May 2019
How to enhance FTP server security
If you still use FTP servers in your organization, use IP address whitelists, login restrictions and data encryption -- and just a few command prompts -- to keep them secure. Continue Reading
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Feature
15 May 2019
Red Hat CTO: Scalability, usability key RHEL 8 components
Linux software is expanding its use cases for data center and cloud options. Red Hat CTO Chris Wright details how the company is helping improve IT management and visibility. Continue Reading
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News
07 May 2019
RHEL 8 launches with AI, container and hybrid cloud focus
Red Hat rolled out its long-awaited Red Hat Enterprise Linux 8, designed to work across corporate data centers and multiple clouds and anchor its container and AI strategies. Continue Reading
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News
28 Mar 2019
IBM-Red Hat merger timing, fairness in question
Six months after IBM revealed plans to acquire Red Hat, some IT industry experts have reason to believe approvals will take longer than the companies have suggested. Continue Reading
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Tip
27 Mar 2019
Top 5 Linux performance commands for system administrators
Figuring out Linux host performance issues is time-consuming without the right tools. The top, vmstat, iostat, free and sar commands can help get CPU, device and memory data. Continue Reading
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Tip
05 Mar 2019
Get started with PowerShell Core on Linux
PowerShell Core lets you configure and manage Windows, Linux and Mac-based servers in the data center. Learn how to install and navigate the command-line shell in this tip. Continue Reading
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Photo Story
28 Feb 2019
Windows Server 2019 features admins should explore
This slideshow of Windows Server 2019 features highlights some of its key additions built to bring more flexibility and reliability to the enterprise. Continue Reading
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News
08 Feb 2019
'SpeakUp' backdoor Trojan could spell further trouble for Linux servers
Check Point Research explains why SpeakUp, the new Trojan targeting Linux servers, has the potential to unleash more harm and offers pointers on how to defend against such malware. Continue Reading
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Answer
09 Jan 2019
What OSes does Azure Update Management handle?
Azure Update Management supports a large number of Windows and Linux systems on premises and in the cloud, but there are certain requirements to meet to utilize the service. Continue Reading
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Tip
28 Nov 2018
Choosing the best OS: Linux server vs. Windows Server
When determining the best server OS for a data center, you have Windows Server and multiple Linux options. For both, you'll want to look at vendor support, cost and functionality. Continue Reading
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News
02 Nov 2018
In IBM deal's wake, Red Hat RHEL 7.6 targets hybrid cloud
After its acquisition by IBM, Red Hat wasted little time unveiling the next version of its flagship product, RHEL 7.6, which supports hybrid clouds and updated security. Continue Reading
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Tip
24 Oct 2018
PowerShell Core 6.1 offers many small improvements
New PowerShell Core functionality includes the addition of Windows PowerShell 5.1 modules, making this version worth a closer look for administrators. Continue Reading
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Opinion
01 Oct 2018
How to compare Windows and Linux for enterprise workloads
How do Windows and Linux rank when it comes to running production workloads? Organizations should consider more than just the initial cost. Continue Reading
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Tutorial
24 Aug 2018
How to start using Ansible for Windows management
Ansible is a configuration management offering that runs on Linux but controls Windows systems with PowerShell. Find out how to get the tool running in your data center. Continue Reading
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Tip
12 Jul 2018
Ten Linux process management commands that simplify admin workflows
If you work in Linux, chances are you have to do some process management. Here are some commands to simplify that workflow. Continue Reading
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Feature
02 Jul 2018
Taking stock of Windows Server management tools
Microsoft provides a mix of server management tools that administrators can choose from to control the machines that run the business. This comparison can help steer your decision. Continue Reading
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Tip
19 Jun 2018
Open source log management options for Linux distributions
Open source log management tools provide a variety of options and capabilities for admins who want customizable Linux log management functions in a server or cloud environment. Continue Reading
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Tip
30 May 2018
Mind the feature gaps in the PowerShell open source project
Administrators who switch to the cross-platform version of PowerShell might find it challenging to use, but there are several ways to cope with a transition from Windows PowerShell. Continue Reading
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Answer
24 Apr 2018
What are the options for log management in Linux?
Linux administrators should use syslog and systemd-journald together for smart log analysis. But there are also open source log management tools to consider. Continue Reading
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Tip
30 Mar 2018
PowerShell 6 expands reach but lags behind Windows version
Cross-platform PowerShell arrived without all the functionality that's available in Windows PowerShell -- but it brings the ability to manage Linux and macOS systems. Continue Reading
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Answer
10 Jan 2018
What Linux storage benchmarking tools are best?
Several tools and commands can come in handy to storage admins looking to benchmark I/O performance on Linux systems. But not all benchmarking tools are created equal. Continue Reading
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Tutorial
19 Oct 2017
A Red Hat Satellite tutorial to install an update server
With Red Hat Satellite, IT ops can deploy an update server to simplify patching. Follow this step-by-step tutorial to install the server, attach subscriptions and devise a sync plan. Continue Reading
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Tip
16 Oct 2017
What's the best Linux distribution for Docker in your business?
To find the best Linux distro for Docker, compare options from Red Hat, Ubuntu, VMware and more to make a match and smoothly run containers in your enterprise. Continue Reading
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Tip
11 Oct 2017
With Btrfs file system gone in RHEL 8, look at alternatives
In the XFS, Ext4, Btrfs and ZFS comparison, Linux users will say goodbye to Btrfs in RHEL 8. Learn more about your options and what can fill the gaps once development halts. Continue Reading
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Tip
02 Oct 2017
How to choose a live kernel patching extension
Ksplice and kpatch offer similar live kernel patching services on a Linux system, but differences between function-level services and technical support showcase their differences. Continue Reading
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Tip
06 Sep 2017
Install Ubuntu Core successfully with these steps
An Ubuntu Core installation can often prove tricky for IT teams. Use these step-by-step instructions to properly install the platform for a more secure Docker environment. Continue Reading
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Tip
22 May 2017
Manage Linux servers with a Windows admin's toolkit
Even Microsoft recognizes it's no longer just a Windows world. Here's what Windows administrators can do to pick up Linux management and monitoring. Continue Reading
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Answer
05 Apr 2017
How can I prevent data loss during a Linux distribution upgrade?
It's important to prevent data loss during a Linux OS upgrade. How can partitions or disk drives help IT teams meet that goal? Continue Reading
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Tip
07 Feb 2017
Optimize PHP with finely tuned IT resources and settings
Application ops should address the elephant in the room -- poorly optimized PHP -- to speed load and processing times. Continue Reading
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Tip
17 Jan 2017
Use a Linux file system journal for data integrity, performance
Understand the three different file system journaling modes for Linux, as well as which mount option provides the best levels of data protection and performance. Continue Reading
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Feature
30 Dec 2016
Compare the best Linux distros for enterprise servers
Any of the popular Linux distributions can run on enterprise servers, but here's how to decide which is best for you. Compare SUSE, Red Hat, Oracle and Ubuntu Linux OSes. Continue Reading
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Tip
12 Dec 2016
Consider these Linux I/O scheduler options for storage performance
To optimize Linux performance, IT teams should examine the I/O scheduler currently in use, and evaluate alternatives, such as deadline and Completely Fair Queuing. Continue Reading
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Tip
22 Sep 2016
Manage Btrfs snapshots with the SUSE Snapper utility
Learn how to use Btrfs snapshots with Linux utilities, such as Snapper and GRUB2, to revert back to previous states in the event of a configuration mishap. Continue Reading
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Quiz
08 Aug 2016
Test your knowledge of useful Linux commands with this quiz
Think you're an expert on useful Linux commands for network and server management? Try your hand at this Linux command quiz to see how much you know about 10 Linux utilities and their use cases. Continue Reading
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Tip
28 Jun 2016
Five tools to enable Linux automation, monitoring and backup
When it comes to Linux data center tools, there is no shortage of options. For automation, backup and monitoring, consider these five Linux tools first. Continue Reading
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Tip
16 Jun 2016
Six helpful Linux networking commands to monitor connectivity
There are plenty of useful Linux tools to help in the event of a network connection failure. Here are six of the top commands to stay ahead when trouble occurs. Continue Reading
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Quiz
23 Mar 2016
Pop quiz: Test your knowledge of open source terminology
Open source technology is a wild west at times. Make sure your open source terminology is up to snuff with this short quiz. Continue Reading
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Tip
04 Jan 2016
The Linux ip command makes network config easy
The Linux ip command makes monitoring a Linux network configuration easy, but you need to know what to look for. Continue Reading
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Tip
04 Nov 2015
Server patch management for multi-OS data centers
If you have a multi-OS data center, you know the struggle that is server patch management. Don't fret, the right combination of tools and human intuition can alleviate the pain. Continue Reading
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News
27 Aug 2015
HP Enterprise has work cut out following split
With the split two months away, HP Enterprise needs to ensure its hardware, software and services groups work and play better together. Continue Reading
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Answer
06 Jul 2015
Help! I deleted a Linux boot partition
I deleted a partition on my Linux system, but I still see a boot menu. How do I re-install GRUB2 and not lose data? Continue Reading
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Tip
01 Jun 2015
Build Linux from scratch to improve admin skills
There's a sure-fire way to increase your knowledge about the Linux kernel and how to troubleshoot Linux servers: Build one yourself. Continue Reading
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Tip
15 Apr 2015
Two ways to manage different server operating systems
Several tools and techniques let data center systems administrators work with multiple server OSes on one host system, and manage it effectively. Continue Reading
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Tip
13 Feb 2015
Master Linux service management on System V and systemd
Managing services on Linux is an essential task for administrators. Learn to work with either System V or systemd. Continue Reading
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Answer
04 Feb 2015
How do I transfer a PS file from a mainframe to a Linux server?
I need to transfer one PS file's data from a mainframe to a Linux server. Are there any JCL scripts that can do this for me? Continue Reading
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Tip
08 Jan 2015
Linux network configuration turns positively wicked
Wicked replaces a lot of old Linux network configuration commands and utilities in SLES 12, making the OS more cloud friendly. Continue Reading
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Tip
23 Oct 2014
Create a SAN with the Linux LIO iSCSI target
With the LIO iSCSI target service, Linux shops have an affordable SAN option that ranks up there with expensive proprietary storage solutions. Continue Reading
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Tip
09 Jul 2014
Mount file system Linux systemd's way
Forget about /etc/fstab and autofs. There's a new Linux system around. Systemd manages mounting and automounting of file systems differently. Continue Reading
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Tip
25 Jun 2014
A few ways to configure Linux firewalld
The method for configuring Linux servers' firewalls changed with RHEL 7 and other new distributions. Learn how to set up firewalld, and what to avoid. Continue Reading
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Guide
30 May 2014
What's the best Linux OS for your enterprise data center?
With several updates to supported Linux OSes, how do you know which to run in your data center? This guide will help you make an informed decision. Continue Reading
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News
30 Apr 2014
Oracle updates Solaris, but is its server strategy sound?
Oracle has released a beta versdion of Solaris 11.2. But does Solaris and the Sparc server platform have a future? Continue Reading
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Tip
21 Apr 2014
Linux boot options in RHEL, SLES help ailing servers
Is your server not booting correctly? Does it need crucial recovery tasks? Linux boot options with GRUB2 and systemd can help. Continue Reading
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Tip
17 Feb 2014
Mount Global File System 2, avoid corruption in RHEL High Availability
You have a working cluster, now what? Red Hat's GFS2 will help you avoid file system corruption. Learn how to mount the default cluster file system. Continue Reading
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Quiz
04 Feb 2014
Unix command line quiz
Do you know how to move a file or get a list of current users from your Unix servers? Take our Unix quiz on essential commands for system admins. Continue Reading
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Tip
28 Jan 2014
Six steps to create a highly available Apache Web service
When a Red Hat cluster goes into production, you can protect it by configuring a supported high-availability service. Here's how. Continue Reading
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Tip
17 Jan 2014
Basic Linux commands for new Linux server administrators
To manage Linux servers, administrators need a set of basic commands to view and start processes, as well as utilities that make life a little easier. Continue Reading
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Tip
13 Jan 2014
Scale up vs. scale out: Debate evolves over how to upgrade data centers
Pick sides on whether to scale up vs. scale out servers. It will establish what method to enhance server performance makes sense for your data center. Continue Reading
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Tip
08 Jan 2014
Five best Linux applications for enterprises
These five applications will improve the lives of enterprise IT and business management by increasing functionality and reducing costs. Continue Reading
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Tip
08 Jan 2014
RISC vs. CISC explained for data center systems
The role of RISC processors in data center equipment is hotly debated, but new RISC designs are proving that it isn't just a CISC game. Continue Reading
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Tip
23 Dec 2013
Creating a quorum disk and fencing for Linux high availability nodes
The quorum disk and fencing on a Linux high availability cluster let its nodes know when they are operational and shut them off if they are not. Continue Reading
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Tip
21 Oct 2013
Tips and tricks to improve memory paging on servers
Memory paging helps virtual machines share a server's memory resources nicely, but can throttle performance. A few simple tricks will optimize paging. Continue Reading
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Tip
24 Sep 2013
How to prepare a server cluster for Linux high availability
With a Linux distribution supporting mission-critical business applications, it's time to set up Linux high-availability software. Continue Reading