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.

I use Red Hat Enterprise Linux to manage pre-configured web servers, troubleshooting issues such as "524 errors" and missing configurations in EMV files. Furthermore, I constructed an on-premises Kubernetes cluster on Red Hat Enterprise Linux 9 and configured it for ELK.

The Red Hat Enterprise Linux knowledge base is excellent. When I encountered an error, they were able to quickly identify the issue and guide me through the necessary steps to resolve it.

The Red Hat Enterprise Linux Web Console functioned properly throughout the lab courses.

Red Hat Enterprise Linux is excellent for commercial use and enterprise tools. It's best to use Red Hat for enterprises because it provides robust support available twenty-four by seven, which I have experienced.

To start working with Red Hat Linux was straightforward and user-friendly. I didn't encounter any complexities.

The most valuable feature of Red Hat Enterprise Linux is its comprehensive ecosystem. The detailed documentation eliminates the need to consult external resources, and the knowledgeable support team provides expert assistance with both technical issues and site navigation.

Improvement is needed for supporting Kubernetes clusters because it is less supported by Red Hat according to my experience. There are also some gaps in documentation which affect configuring Kubernetes clusters.

I have been using Red Hat Enterprise Linux for four to six months.

I have not faced any downtime or stability issues with Red Hat Enterprise Linux.

I have not encountered any scalability issues with Red Hat Enterprise Linux.

The technical support is excellent. They promptly addressed my concerns regarding permission issues when I contacted them.

Positive

I used CentOS for non-enterprise purposes but switched to Red Hat for enterprise applications due to its superior support and stability. However, Ubuntu is generally preferred for Kubernetes deployments.

Red Hat Enterprise Linux is nine out of ten.

Red Hat Enterprise Linux does not require maintenance.

Our mid-size organization has between 20 and 50 employees, including our DevOps team, who use Red Hat Enterprise Linux.

I recommend Red Hat Enterprise Linux due to its support and strategy.

My primary use case for Red Hat Enterprise Linux is for cloud-related tasks, such as working on AWS. Specifically, I create virtual servers on Amazon EC2 instances. My department has 50 people using the solution.

Red Hat Enterprise Linux has increased our productivity by making monitoring more manageable and allowing us to be more proactive. We get more information we need from the virtual machines using the command line. It's also a highly secured system with built-in protections. We've also saved time because command-line operations are more efficient. Time is money, so we also save money by decreasing our time on these tasks. 

When I started working with Red Hat Enterprise Linux in March 2021, I did not immediately realize its benefits. It took me several months to understand the full power of Red Hat Enterprise Linux and the problems it solves. After three to six months, I recognized the full power of Red Hat Enterprise Linux. 

The most valuable feature of Red Hat Enterprise Linux is its command-line capabilities, which allow you to execute large operations quickly. For example, let's say you want to create a hundred files or directories. In Windows, you need to create each one by hand, which is difficult and time-consuming. Linux has multiple commands to create files in a few seconds. It also has the "top" command that gives you all the processes running and their utilization of resources like CPU, RAM, etc. That isn't possible with a management console or GUI.

Red Hat Enterprise Linux has good security features, so it's harder to breach than Windows. There's also a large Red Hat Enterprise Linux user community, so when I get stuck, I can go to Stack Overflow or other user forums and get help. I typically get a solution within a few hours when I post a question. 

I don't handle patching and provisioning because I don't have much experience, but I've heard from senior engineers that it's easy on Red Hat Enterprise Linux. 

Red Hat Enterprise Linux could make some back-end improvements. On the front end, Red Hat Enterprise Linux could make the interface more colorful and improve the user experience. A better-looking interface would attract more customers.

I have been using Red Hat Enterprise Linux since March 2021.

Red Hat Enterprise Linux is stable, providing a reliable platform for our operations.

I would rate the scalability of Red Hat Enterprise Linux as nine out of ten, indicating it scales well with our needs.

I rate Red Hat support eight out of 10. The technical support is excellent. They are readily available to assist with any technical issues that arise. Their documentation is clear and built into the GUI, so you can easily access information if you're curious about a topic. Red Hat has a large, well-informed user community.

Positive

Previously, I used only Windows, but now I use Windows, Linux, and AWS environments. I transitioned to Red Hat Enterprise Linux as it enhances productivity, reducing the time-consuming aspects of software development and project management.

Setting up Red Hat Enterprise Linux wasn't complex, but also not overly simple. It was about average. It took about half an hour to deploy the solution at one location. After deployment, we need to install updates, but that process has gone pretty smoothly.

We have a team of more than twelve individuals working with Red Hat Enterprise Linux.

Red Hat Enterprise Linux has saved us time and increased productivity. We've also saved money by not purchasing other operating systems, such as Windows or Mac. 

Most Indians will find Red Hat Enterprise Linux a little costly. It's slightly above average. Its pricing has room for improvement because it's more expensive in the local market due to purchasing power parity in India. 

I highly recommend Red Hat Enterprise Linux to others due to its productivity benefits and efficient command-line operations. It offers key advantages in terms of time-saving, security, and community support.