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What is Server Patching & Why It’s Important

by Makenzie Buenning, IT Editorial Expert
reviewed by Lauren Ballejos, IT Editorial Expert
Illustration of a server and a patch icon representing the topic of server patching
Illustration of a server and a patch icon representing the topic of server patching

Key Points

  • Server patching is the process of applying patches to update or fix server software.
  • Patching a server system is important because it ensures it successfully stores, sends, and receives data over the network and into your connected endpoints.
  • Unpatched servers leave the network open to security vulnerabilities, productivity loss, and risk of non-compliance.
  • IT teams often use endpoint management platforms with autonomous patch management, such as NinjaOne, to detect, prioritize, and deploy updates across servers and other endpoints.

Patch management is a critical process in IT-powered environments. Server patching, in particular, is crucial to keeping these endpoints performing well and secure. Follow this guide to learn how server patch management works and how to best execute it at scale within regulatory compliance.

Want to understand server patching more? Watch our visual guide: What is Server Patching & Why It’s Important.

What is server patching?

Server patching is the process of applying patches to update or fix your server software. Patching is needed to support the successful operation of your servers and verify that they’ll be able to perform their specific functions.

It’s an iterative process that’s often completed upon availability, though it may also be delayed or ignored with varying risks and consequences.

Read: Check out this deeper look at the risks of delayed patching.

Streamline your server patch deployment process with NinjaOne.

Discover NinjaOne Server Patching.

Why is server patch management important?

Patching a server system ensures it successfully stores, sends, and receives data over the network and into your connected endpoints. A server with poor health and tuning will be unable to provide its designated services or functions.

Security protection

Attackers are known to exploit vulnerable servers and other endpoints. Regular patching closes these gaps that could otherwise be an entry point for malware, ransomware, or rogue users.

System stability

Patches don’t just address security gaps; they also fix bugs and defects that can cause crashes, performance degradation, or downtime. As far as servers go, high availability is a must for business continuity and compliance.

Read: Check this guide on minimizing downtimes for more tips.

Regulatory compliance

Many industries (e.g., finance, healthcare, government) need up-to-date patching as a key component of data protection and security frameworks. Failure to meet IT compliance can lead to hefty fines and reputational damage.

Operational continuity

Automated patching mitigates the risk of outages caused by known software issues, ensuring servers run smoothly with minimal disruption.

At scale, this is typically achieved with enterprise IT management tools or an RMM with autonomous patch management capabilities like NinjaOne.

Apart from operational integrity and compliance, patches enhance efficiency, optimize processes, or improve software compatibility among various systems. Regular patch management also significantly minimizes the number of entry points that threat actors can exploit across servers.

Common risks of unpatched systems

Risks that are associated with an unpatched server are the same risks that other types of unpatched software face, including:

  • Loss of data
  • Lost productivity
  • Security vulnerabilities and weakened security posture
  • Suboptimal network conditions
  • Non-compliance with regulatory and industry standards

When the server is unpatched, it is less resistant to cyber threats. Unpatched software can also have a noticeable impact on productivity, especially in industries or environments that have fully integrated IT workflows.

Tip: Check out these IT horror stories and learn how unpatched software can hurt your business.

3 keys to a successful server patching process

Servers are more heavily configured and more sensitive, which means that the impact of them going down is much worse. If a patch breaks a user’s machine, the user might lose a day of work, but it’s not the end of the world. If you break a server with a patch, all members of your organization might be unable to work for an entire day. The effects are much larger, so server patching has much higher stakes.

There are three keys to a successful server patch. We’ll go through each in this section, but you can refer to the table below for a quick summary:

KeyWhat it doesWhen it applies
Combine automatic and manual processesAutomation tracks and scans available patches, while humans validate and implement themEvery patch cycle
Use a sandbox to test server patchesEvaluates patches in a non-production environment before they touch live serversBefore each server deployment
Implement server failoversA standby server automatically takes over if a patch breaks the production serverAlways-on safeguard

1. Combine automatic and manual processes

Patch management benefits from automation, though not every step should be automated.

Automation can be used for tasks such as tracking available patches and scanning them, but manual testing and implementation remain key to ensuring patches positively affect server performance.

2. Use a sandbox to test server patches

Before you deploy a patch to your server, you want to make sure it actually improves the system rather than breaking it. Sandbox testing allows you to evaluate any available patches without disrupting the live environment.

A sandbox is a non-production environment that allows you to safely test potential patches before they’re applied to production, which in this case is a server.

3. Implement server failovers

As a general rule of thumb, you should have backups in your IT environment wherever possible. Server backup is a server failover.

The server failover or failover cluster is programmed to automatically take control and replace the original server if it goes down, is offline, or another disaster breaks the system.

The general approach to server patching is very different from the approach to patching end-user devices. With end-user devices, the goal is to get them protected as quickly and efficiently as possible.

Server patching, in comparison, thrives in a more conservative approach. Likewise, it’s typically more difficult and time-consuming. Autonomous and manual processes are also both required to deliver consistent and stable outcomes.

Tip: For additional insights, check out this collection of patch management best practices.

Thousands of customers worldwide trust NinjaOne for their patching needs.

Learn more about NinjaOne Server Patching.

Patch your servers with confidence using NinjaOne

NinjaOne provides patch management software that gives you the tools for effective server patching at scale. It enables automated remote patch management, monitors your servers’ patch status on a unified dashboard, and provides regular patch reporting and visibility over servers and endpoints across your IT environment.

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FAQs

Critical security patches should be applied as soon as they are released. Many organizations follow a monthly patch cycle for routine updates, with emergency updates installed immediately when needed.

IT teams often automate patching with an endpoint management platform such as NinjaOne. NinjaOne Autonomous Patch Management® detects available updates, prioritizes them by severity, assesses patch stability with Patch Intelligence AI, and deploys them across all endpoints through policy-based automation.

Some patches may require a server restart, which can cause brief downtime. However, planned patching schedules and staggered rollouts help minimize business disruption.

Patches and updates are closely related, and the terms are often used interchangeably. A patch is a small release that fixes a specific issue or vulnerability in a program, while an update is a broader release that improves the overall functionality of the software.

Minimizing downtime during large-scale patch deployments requires a combination of strategic planning, smart scheduling, and the right tools. The most effective approaches include:

  • Using a phased rollout strategy, deploy patches to non-critical devices first during off-hours or maintenance windows, then expand to other departments over time.
  • Leveraging patch management tools to automate deployment across thousands of devices, and use technologies like live patching or peer-to-peer distribution to minimize reboots and speed up delivery.
  • Scheduling patches when devices are idle or offering flexible patching windows so users can choose when to apply updates.
  • Testing on a small pilot group first, maintain a rollback plan in case of issues, and give users advance notice (1–2 weeks) so they can prepare.

The most successful approach combines phased rollouts, off-hours scheduling, automation, and clear communication. This minimizes disruption while ensuring your devices stay secure and up-to-date.

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