I typically use Red Hat Enterprise Linux (RHEL) in my federal government contracts. Federal government customers are the only ones that use Red Hat Enterprise Linux.

Most government agencies use Red Hat Enterprise Linux because they have a requirement for commercial support. That is the only reason why Red Hat Enterprise Linux gets used over any other Linux distribution.

The only reason our clients use Red Hat Enterprise Linux is because Red Hat offers commercial support. 

Red Hat Enterprise Linux is a solid product. They have decent support, although not the best. They have a good knowledge base and a well-developed ecosystem.

Recently, Red Hat did a strange thing where they took over the CentOS project and changed several things in their pipeline. I don't believe that I, or the vast majority of Linux systems engineers out there, are fans of their development process for the operating system.

The way that Red Hat used to work was that they had a free version. It was the community version called CentOS. Everything that Red Hat developed, they backported to the CentOS community. About four or five years ago, they took over the CentOS community and they killed off CentOS. They were pushing the Red Hat Enterprise Linux stream variant, which was supposed to be the replacement. I wish they would just go back to the way it was before. I do not like the new development process and the new hierarchy. The vast majority of people in the Red Hat open-source community also do not care for it much.

I have been using Red Hat Enterprise Linux since its inception. I started using Red Hat Linux in 1999, but I do not remember what year it became Red Hat Enterprise Linux.

They are typically slow to respond. I feel their first-line support is lacking in knowledge.

Their knowledge base is pretty decent. It is pretty standard. Linux is such a mature product now that the knowledge bases for all the major distributions, even the open-source free ones, are so vast. I do not know if any Linux distribution offers any real advantage over others when it comes to the knowledge base.

Neutral

I have worked with all operating systems. I have been doing this for 30 years. In the military, I was a Windows and Linux systems administrator. I was using Solaris Unix back then. I have been using Windows for about 30 years, and then I have used all Linux distributions such as Ubuntu, Debian, Red Hat, Mandrake, Yellow Dog, etc. If there is a Linux distribution out there, I have probably used it in a project somewhere.

The only reason that I, or anybody else, uses Red Hat Enterprise Linux is because it offers commercial support. That is it.

The Red Hat package management system is inferior to most other package management systems in the Linux world, mostly to the Debian-based ones that used the App system versus the Red Hat RPM package management systems. Red Hat is also not as unified or as streamlined as other distributions.

The setup is pretty simple and very straightforward. I would rate it a seven out of ten for the ease of setup. Its upgrades are moderately straightforward.

The management depends on where those systems live. On-prem ones are managed differently than the cloud ones. Cloud-to-cloud ones are managed differently. Red Hat is slightly more work-intensive than other Linux distributions. I feel that Debian-based distributions, such as Ubuntu, Devuan, and AntiX, are easier to manage than the Red Hat-based distributions, and obviously, Red Hat Enterprise Linux is the flagship for all those distributions.

It is used just to meet requirements. Being government agencies, they do what they have to do to meet requirements. It helps them meet the requirements of having commercial support, and that is about the extent of it.

I am not a big fan of Red Hat Enterprise Linux. I use it because government customers have a requirement to use it, but outside of that, I would never voluntarily use it. In fact, I recommend against using it. 

We do not use features that are proprietary to Red Hat Enterprise Linux. We do our best to avoid proprietary tools. We stick to open-source tools. Typically, we use things like Ansible to achieve those goals.

I am a consultant, so I have worked with both on-premises and cloud deployments. I have used it in both Azure and AWS. It is client-defined. Our workloads are not hybrid workloads. They are usually dedicated. If we put a workload in the cloud, it is all in the cloud. If we put a workload on-prem, it is all on-prem. I do not know if Red Hat necessarily provides any special features to support hybrid workloads, and if it does, we certainly do not use them. We try to stay away from Red Hat-integrated tools and utilize industry-standard tools. We use Terraform and Ansible. Ansible is now owned by Red Hat, so it is technically a Red Hat tool, but it is also an open-source project.

I would rate Red Hat Enterprise Linux an eight out of ten. It is good for commercial usage, but I would never use Red Hat Enterprise Linux in a startup environment.

Our primary infrastructure operating system is Red Hat Enterprise Linux, predominantly RHEL Eight. While some products utilize RHEL Seven, RHEL Eight point Zero is the standard for most of our operating systems and servers. However, server choices may vary based on specific industry requirements. Our underlying infrastructure relies almost exclusively on Linux distributions.

Our primary Linux installations use Red Hat Enterprise Linux in an on-premises VMware environment, with some instances deployed on AWS.

The built-in security features simplify risk reduction by allowing direct control of the root system's access.

Red Hat's knowledge base is excellent.

While Red Hat Leapp and Insights are helpful tools, they are not part of my daily workflow.

The web console is a good feature.

Red Hat Enterprise Linux enhances uptime and security, boasting faster boot times than other operating systems.

The most valuable feature of Red Hat Enterprise Linux is its security, which is more secure than Windows. 

Integrating certificates from third-party clients into Red Hat Enterprise Linux can be challenging due to the operating system's stringent security policies.

I have been using Red Hat Enterprise Linux for nine years.

Red Hat Enterprise Linux is stable.

Red Hat Enterprise Linux is scalable.

The technical support team was professional and quickly resolved our issue.

Positive

We use Oracle for our database, Ubuntu in our testing environment, and Red Hat Enterprise Linux in our production systems due to its increased stability.

The cloud migration from Red Hat Enterprise Linux Seven to Eight was straightforward due to the absence of underlying infrastructure complexities. However, the on-premises migration presented challenges from existing infrastructure dependencies, resulting in numerous errors.

The migration of approximately 200 servers required a team approach to ensure continuous monitoring. Although two people could have completed the migration, a four-person team completed it within two days. 

The migration from Red Hat Enterprise Linux Seven to Eight was done in-house.

Red Hat Enterprise Linux offers a compelling value proposition for corporations due to its robust support infrastructure, which is essential for maintaining enterprise-level systems. However, the pricing model may be less attractive to individuals or small businesses. Compared to cloud-based platforms like AWS or Azure, which offer flexible pay-as-you-go options, RHEL's subscription-based model can become cost-prohibitive for those with limited budgets or smaller-scale projects.

I would rate Red Hat Enterprise Linux nine out of ten.

We utilize Ansible to provision and patch our extensive server infrastructure. Ansible's automation capabilities enable efficient batching and management of security patches across all servers.

We test all the patches for some time before we add them to our production environment.

We utilize Red Hat Enterprise Linux in our private cloud and on-premises environments, but I've observed better performance in the cloud, likely due to the greater availability of resources.

Red Hat Enterprise Linux does require maintenance.

We use Red Hat Enterprise Linux to host databases and Citrix desktops on our servers. This allows us to offer virtual desktops as a service to other companies.

We implemented Red Hat Enterprise Linux due to its widespread industry use and extensive resources for assistance. The platform's popularity ensures a seamless experience when installing applications and creating packages, as it's utilized by many and offers ample support.

Red Hat Enterprise Linux offers excellent documentation and resources, including those provided by Red Hat and the wider community. While I don't rely solely on Red Hat's websites for instructions or troubleshooting, experienced users like myself generally find ample support and clear guidance to resolve any issues.

Red Hat Enterprise Linux's widespread use in cloud and on-premises servers is its most significant benefit, providing access to various online resources and support. Furthermore, Red Hat's comprehensive collection of packages and built-in applications simplifies development, making it an easy and obvious choice for many users.

Our workflows have been seamless with our hybrid environment.

Before Red Hat support, we used CentOS without expert assistance. This meant our OS team spent significantly more time troubleshooting issues and installation failures. Implementing Red Hat has resulted in increased efficiency.

One of the most beneficial aspects of Red Hat Enterprise Linux is its performance, combined with the flexibility to install a wide range of available packages online.

Red Hat could enhance its user experience by incorporating built-in automation tools, eliminating users needing to install, set up, or configure external applications. By providing pre-installed, native automation tools within the operating system, Red Hat would streamline processes and improve user efficiency.

I have been using Red Hat Enterprise Linux for five years.

Red Hat Enterprise Linux is stable.

Red Hat Enterprise Linux is scalable.

Our organization transitioned from CentOS to Red Hat Enterprise Linux due to the enhanced security and support offered by Red Hat. The availability of online support for our OS team, combined with improved performance and rigorously tested patches, were key factors in our decision.

Upgrading Red Hat Enterprise Linux is a straightforward process that involves running a single command to update and patch all packages. However, syncing the repository to the new one is a manual step. Despite this, I haven't encountered any issues. To perform the upgrade, I synchronize our Red Hat repository with Red Hat Satellite, execute the upgrade command, and verify the package versions to confirm successful updates.

The required personnel for server upgrades depends primarily on the number of servers and the testing duration. Potential connection issues may also influence staffing needs. Based on previous patching experience, approximately five people are needed for the off-hours patching process, typically conducted between two AM and six AM.

The upgrades were done in-house. 

I would rate Red Hat Enterprise Linux nine out of ten.

Our organization has approximately 3,000 users and operates five data centers in the United States that utilize Red Hat Enterprise Linux.

Red Hat Enterprise Linux maintenance is straightforward but necessary due to occasional unexpected spikes in CPU usage and storage capacity reaching its limit. This presents a challenge because storage and CPU load management are not fully automated, requiring manual intervention to address these issues effectively.

I recommend Red Hat Enterprise Linux to others, especially larger companies. Purchasing Red Hat support, while an added cost, saves valuable time and resources compared to extensive independent research.

I have been a sysadmin handling everything about Red Hat Enterprise Linux, primarily for on-premises environments. I have built projects based on Red Hat Enterprise Linux, including development and support projects in the companies. I have handled pretty much everything. Anything you can imagine, I have probably done with it.

In terms of security, it does a lot of things that most people still turn off. SELinux is turned on by default. They have pretty good firewall rules in their defaults. The audit rules always take tweaking, but, overall, it comes out of the box not too bad. I used to write scripts to harden them from there.

There are multiple ways to provision and patch. You have everything from local repositories to doing it by hand.

Their knowledge base is incredible. There is so much information out there. It has never taken me longer than 30 minutes to find an answer to anything, even very tough ones.

One company I worked for was a security company, and we did a lot of patching on everything. It was designed around security and email hosting, and uptime was pretty much whatever we wanted it to be. I have had a couple of times when the uptime was bad, but it was caused by a third-party solution. In fact, the Norton antivirus was definitely the worst. Red Hat had nothing to do with it.

I enjoy the patching processes and the way Red Hat Enterprise Linux has elements set up. I have never had a patch session fail, even when installing a thousand packages at a time. 

Their implementation of Yum is effective. I have used it quite a bit to pull additional information out because, for a while, I was doing security work. It is nice to have all the security information they provide on the inside. Their security library is well-maintained. I have used it exclusively for 15 years now, and I have been nothing but happy with it.

I wish IBM would give them more leeway. IBM seems to have restricted Red Hat Enterprise Linux more since the acquisition.

The organization moved away from Red Hat because IBM introduced paywalls and additional barriers that did not exist before, which made everything a lot harder. They moved from there to the Rocky version, which is a fork of Red Hat. It is run by people who have left IBM or Red Hat engineers who left IBM. Giving Red Hat Enterprise Linux more independence could be beneficial.

I have been using Red Hat Enterprise Linux exclusively for about 15 years.

It has demonstrated great stability, with systems running for multiple years without issues. I have no problem with uptime. It is as long as you want it to be.

It offers excellent scalability. The HPC system that the organization runs is a small one, but it has 8,000 computers. Each computer has at least 24 to 72 CPUs in it, and everything runs on Red Hat Enterprise Linux or Rocky. It is eminently capable. They run jobs because they do some of the hurricane forecasting and things. The things that they run on it take 900 nodes and 70,000 CPUs. You walk into that data center, the air comes out of the floor at 50 degrees. By the time it gets through the computers, it is about 110, so they are working them hard. The room itself stays at about 90.

Before the acquisition by IBM, support was incredible. I could directly engage with developers and get immediate assistance. It was great. 

I have not had a lot of experience with them post-acquisition. At this point, the entire department is moving to Rocky. It is not a huge change for me, but a part of the move was the lack of support through IBM.

Positive

The company we are contacted with has just moved from Red Hat to Rocky, which is Red Hat-based. It is a fork of Red Hat, so it is like all Red Hat derivatives. It is binary compatible. You can do anything you want with it. For the things the organization does with the HPC environment, it is a lot nicer because there are fewer restrictions. Open source works best for HPC environments. You have to recompile a lot of drivers and things to get things to work. Being able to do that is critical in that business.

For the most part, upgrades and migrations are very straightforward. In one of the cases, it was very straightforward to install the OS, but it was a lot more problematic to find all the pieces that ran the underlying hardware and get those working right. We had to do a lot of testing between lots of different versions of both the OS and the hardware drivers before we found good combinations. From what I hear, going from Red Hat to Rocky was a lot cleaner than going from Red Hat 6 to Red Hat 7. That was a big change.

In terms of maintenance, for the most part, once you get it set, you can walk away from it.

I do not have any insights, but I know why the prices went up. At the time, it made sense. I do not know what the pricing is like now. Previously, the pricing model was advantageous as it allowed unlimited installations for a single price, focusing on support. The recent introduction of paywalls complicates the cost landscape.

I have used the web console, but I am more of a command-line person. I did not see a lot of use for it, but I have used it in the HPC world because you can do some things that are handy, such as pulling in entire groups of things and building them as a boot group. It is nice to have when you need it.

Overall, I would rate Red Hat Enterprise Linux a nine out of ten.

Our servers utilize Red Hat Enterprise Linux for production and development environments due to the application's strong performance on this platform. Additionally, some workstations also use Red Hat Enterprise Linux as their operating system.

Red Hat Enterprise Linux has robust built-in security features that effectively mitigate risk and help maintain compliance.

Red Hat Enterprise Linux offers a comprehensive knowledge base that provides reliable support. When online searches fail to yield the necessary information, their resources consistently deliver the answers needed.

It also offers a positive management experience. Its monthly update patching, scheduled according to the number of users and their security profiles, facilitates efficient system maintenance and allows for the closure of inactive accounts.

I used the Red Hat LEAP feature when upgrading from Red Hat Enterprise Linux seven to eight, which simplified the upgrade process.

The Red Hat Enterprise Linux web console is user-friendly. Simply open a new terminal, log in, and enter our desired commands or searches.

Red Hat Enterprise Linux has yielded cost savings compared to a Windows environment, offering better stability, ease of use, and maintenance. Unlike Windows servers, it eliminates the need for reboots during updates, enhancing operational efficiency.

Red Hat Enterprise Linux has improved our uptime and security. 

I appreciate the simplicity of reporting in Red Hat Enterprise Linux. Running a command, tagging the log, and sending it to support is all it takes. The user-friendly interface has consistently improved from version four to eight, particularly in login and display features. Overall, the system is stable, easy to use, and maintain.

Red Hat should improve its support services, specifically the responsiveness and expertise of its India-based team. Response times need to be faster, and support staff should have access to more detailed procedures to address customer cases effectively.

I started using Red Hat Enterprise Linux in 2019. Specifically, I started with Red Hat four and then upgraded to version eight.

Red Hat Enterprise Linux is very stable. I would rate its stability as nine out of ten.

Scalability is easy because Red Hat Enterprise Linux supports virtual machines. I would rate the scalability a nine out of ten.

Technical support is taking a long time to resolve our issues, and we must monitor the resolution time for each ticket.

Neutral

The initial deployment is easy; follow the instructions and use the automatic setup. This straightforward process takes no more than 15 minutes, even for new users.

I rate Red Hat Enterprise Linux as nine out of ten.

We have Red Hat Enterprise Linux deployed in one location with 15 users.

We have local maintenance for Red Hat Enterprise Linux by certified admins. 

I recommend Red Hat Enterprise Linux for enterprise production environments due to its stability and proven industry track record.

We primarily use Red Hat Enterprise Linux to host applications with our virtual machines.

Red Hat Enterprise Linux offers an excellent and comprehensive knowledge base for Linux. It is among the most thorough available.

Our Red Hat Enterprise Linux environment utilizes a patch management system for updates. However, provisioning remains a manual process, with virtual machines being installed individually. We currently don't use automated provisioning solutions like Ansible, Vagrant, or Terraform.

Red Hat Insights is helpful for deep dives into OS-level issues and remediation, as it links directly to the Red Hat knowledge base.

Red Hat Enterprise Linux enables compliance with regulatory requirements by providing customized images that meet various security standards. This streamlines our process as every virtual machine image is deployed with hardening by default, reducing the need for manual application per virtual machine.

The Red Hat Enterprise Linux knowledge base is a valuable resource.

In terms of improvement, Red Hat could consider offering cheaper licensing. The licensing model is good, but we would all appreciate a lower price.

To ensure compliance and security on our Red Hat Enterprise Linux systems, we had to install additional software, such as endpoint detection and response or antivirus solutions. The built-in security features of Red Hat Enterprise Linux were insufficient for our needs, necessitating the implementation of supplementary security measures.

I have been using Red Hat Enterprise Linux for about three years.

Red Hat Enterprise Linux has not affected our systems negatively regarding stability, experiencing no issues so far.

Customer service by Red Hat is very good. I haven't noticed any shortcomings in response time or overall competence.

Positive

The upgrade from version seven to eight was done with Red Hat's assistance, as we manage hundreds of virtual machines.

The licensing model of Red Hat Enterprise Linux is good, but lower prices are always preferable.

We evaluated several alternatives, including CentOS and Rocky Linux, but the support question kept coming up with community distributions. We chose Red Hat Enterprise Linux for its enterprise support, which is crucial for maintaining production systems.

I rate Red Hat Enterprise Linux a nine out of ten. 

I would recommend Red Hat Enterprise Linux to others, especially in the enterprise space. However, for startups or companies that do things themselves, alternatives like Ubuntu or CentOS Stream might be more suitable.

We use Red Hat Enterprise Linux primarily for our entire group because most of our applications are based on Linux.

Red Hat Enterprise Linux has robust built-in security features.

It has an extensive knowledge base.

We used to patch our systems manually, and now we use Red Hat Satellite to manage the patching of our systems.

Red Hat Enterprise Linux provides a good way to manage our OS.

It has enhanced both our uptime and security. The system's stability has eliminated any noticeable security issues.

Red Hat Enterprise Linux has enabled us to achieve security standards certification, which has allowed us to maintain business operations without interruption.

Red Hat Enterprise Linux is a stable and supported platform with valuable built-in security features that help reduce risk and maintain compliance.

The cost of Red Hat Enterprise Linux is a bit high. 

Red Hat Enterprise Linux's support could be improved by offering human support in addition to their documentation. While their documentation is helpful, it can be frustrating to be referred to it instead of receiving direct assistance from a support representative.

I have been using Red Hat Enterprise Linux for two years.

Red Hat Enterprise Linux is stable overall.

Red Hat Enterprise Linux is scalable.

Red Hat's support is generally good, but their response time and overall competence could be improved. Occasionally, we are referred to their documents when requesting assistance, which can be frustrating.

Positive

Red Hat Enterprise Linux has a yearly subscription cost for the licensing that includes maintenance and support.

We evaluated Microsoft Windows Server, Ubuntu Server, and Red Hat Enterprise Linux before ultimately choosing Red Hat Enterprise Linux.

I would rate Red Hat Enterprise Linux nine out of ten.

I recommend Red Hat Enterprise Linux for its support and stability.

Red Hat Enterprise Linux is used within our organization to orchestrate a multitenant, microservice-based architecture. This supports a distributed system of predominantly web-based applications and frontends. A typical deployment involves around 60 to 70 Amazon EC2 instances working in concert.

The primary use cases involve running interconnected applications with requirements such as low latency and high availability, often achieved through redundant, multi-tenant, and load-balanced architectures. These applications may utilize read or write-optimized instances or be memory or processor-optimized, depending on their specific needs. Optimization is achieved through the processor, RAM, and connected protocols. The foundation for these applications is Red Hat Enterprise Linux.

Red Hat Enterprise Linux facilitates seamless workload migration between diverse cloud environments and data centers. In DevOps, workload portability between cloud and data centers is crucial, so we prioritize operating systems supported by multiple cloud providers and available locally. Key considerations include stability, security hardening capabilities, and the ability to obtain government or compliance organization approvals, which are incredibly stringent in sectors like banking and securities exchange. Red Hat Enterprise Linux meets these requirements by providing a secure, reliable, and consistently delivered operating system that facilitates approvals and ensures seamless workload mobility.

Regarding Red Hat Enterprise Linux provisioning and patching, both processes are generally straightforward. Patching can be completed within a few hours. Once the automation pipelines are properly configured, tested, and operational, provisioning can be fully automated. This applies to any operating system, not just Red Hat. Setting up a correct pipeline ensures smooth provisioning regardless of the OS.

Implementing Red Hat Enterprise Linux has resulted in significant resource savings due to its efficient usage of minimal resources. Compared to other operating systems, Red Hat Enterprise Linux requires less RAM and CPU allocation, which translates to cost savings. Additionally, its stability and minimal downtime contribute to operational efficiency.

The Red Hat command line interface is more user-friendly than the Windows command line interface. Red Hat makes it easier to perform tasks like reviewing logs, checking network connectivity, checking DNS, and setting up a proxy. Additionally, searching for specific characters within numerous log files is simpler in a Red Hat Enterprise Linux instance compared to other operating systems.

The implementation and limitations of SELinux should be re-evaluated. Its current configuration presents numerous challenges and restricts certain functionalities, hindering the overall usability of Red Hat Enterprise Linux. Addressing these limitations would significantly enhance the operating system's flexibility and efficiency.

I've been using Red Hat Enterprise Linux for six years.

Red Hat Enterprise Linux is almost perfect in terms of stability. It works consistently with minimal downtime and very few bugs or glitches, deserving a high rating for stability.

There are no issues with scalability when it comes to Red Hat Enterprise Linux. It scales efficiently, fulfilling our needs without difficulty.

My experience contacting Red Hat technical support was positive, with knowledgeable and supportive staff, particularly during early hours. However, I found more detailed knowledge through community interactions on platforms like Stack Overflow.

Positive

Before adopting Red Hat Enterprise Linux for production applications, other Linux operating systems like Ubuntu and Windows servers were used for monitoring and testing purposes. Red Hat Enterprise Linux became the choice for critical server applications.

The initial setup of Red Hat Enterprise Linux is straightforward. Once the images and database information are available, the automation process is simple and efficient, taking only a couple of hours to complete.

Using Red Hat Enterprise Linux can yield resource savings of 200 percent to 300 percent compared to Windows Server instances. Its minimal RAM and CPU usage allows for smaller instances, resulting in significant cost reductions.

Red Hat Enterprise Linux is a more cost-effective solution than Windows Servers. Windows Servers base their cost on the number of users and have high licensing fees, while Red Hat Enterprise Linux offers free versions alongside its paid, supported versions. This makes Red Hat Enterprise Linux a good option for startups and organizations with limited budgets. While the free versions may lack direct vendor support, the availability of paid support options and the robust Red Hat Enterprise Linux ecosystem provides flexibility for growing businesses. Additionally, the presence of compatible open-source alternatives further enhances cost-effectiveness and choice. Overall, Red Hat Enterprise Linux presents a compelling advantage in terms of cost compared to other operating systems, especially for nascent organizations.

I would rate Red Hat Enterprise Linux eight out of ten.

While Red Hat offers free license versions and CentOS provides a similar platform, the official Red Hat documentation may not be the most helpful resource. More valuable support can often be found in community-driven platforms like Stack Overflow, where users share their knowledge and experiences through questions and answers. This user-generated content often proves more practical and supportive than the official Red Hat resources.

Red Hat Enterprise Linux is deployed in a multi-region configuration with three availability zones per region. Data is replicated from region one to region two, which serves as a read-only replica. Traffic is load-balanced across all availability zones within a region, ensuring automatic failover to the remaining zones in case of an outage. Similarly, if an entire region fails, traffic is redirected to the other available region. This setup provides high availability and disaster recovery capabilities. We have a couple of thousand users in our organization.

Red Hat Enterprise Linux requires periodic updates. To manage logs, a retrieval and deletion method is necessary, which can be achieved using built-in features like cron jobs. Red Hat supports these features. Additionally, security patches should be applied as they become available.

I recommend Red Hat Enterprise Linux, particularly for enterprise implementation, due to its lightweight and secure design. Its robust community support and extensive availability of solutions in forums and unofficial resources make it preferable to other operating systems.