Red Hat Enterprise Linux (RHEL) Reviews

We use the product for application hosting, availability, and CI/CD pipelines.

The solution has good availability and is easy to use. It saves money and resources like support staff.

The product should provide a portal to manage licenses.

I have been using the solution for more than five years.

The solution’s stability is fine.

The product’s scalability is fine.

The support is good.

Neutral

We have seen an ROI on maintenance. As long as our servers run, our company makes money.

We evaluated SLES and Windows.

We purchased the solution via a cloud provider. We use AWS, Google, and Azure. The resiliency of the product is the same as other products. 

The solution helped us reduce costs. We use SLES and Windows alongside Red Hat Enterprise Linux. Application support and vendor support for Red Hat Enterprise Linux are better than other products. 

Overall, I rate the product an eight out of ten.

It started mostly with websites and open source environments overall for development. Now, we are moving into business applications as we are migrating our ERP, which is a cp -r tree, to Linux. We are also migrating the database of SAP to SAP HANA on Red Hat Enterprise Linux. 

We use RHEL versions 7 and 8. There is a bit of version 6 still lying around, but we are working on eradicating that. It is mostly RHEL Standard subscriptions, but there are a few Premium subscriptions, depending on how critical the applications are.

It has fulfilled all the promises or goals of different projects, not just because our internal team is strong, but also because our external partner is strong.

Satellite is an optional system which provides for extensive deployment and patch management. That is quite valuable.

We use Red Hat Enterprise Linux's tracing and monitoring tools. You don't leave them on all the time, as far as tracing is concerned. When you are sick and go to the doctor, that is when you use it, e.g., when an application is sick or things are really unexplainable. It gives you a good wealth of information. In regards to monitoring, we are using them to a point. We are using Insights and Insight Sender as well as the Performance Co-Pilot (PCP), which is more something we look at once in a while. 

Other Red Hat products integrate with Red Hat Enterprise Linux very well. In fact, they integrate with pretty much everything around the universe. We are doing API calls without even knowing what an API is, i.e., towards VMware vCenter as well as Centreon. There are certain individuals who use it for free without subscription and support for Ansible in our Telco group with great success.

Linux overall needs improvement. They cannot go much beyond what Linus Torvalds's kernel implementation can do. I come from AIX, and there were very cool things in AIX that I am missing dearly, e.g., being able to support not only adding, but also reducing memory and number of processors. That is not supported on Linux right now, and it is the same for the mainstream file systems supported by Red Hat. There is no way of reducing a file system or logical volume. Whereas, in AIX, it was a shoo-in. These are the little things where we can say, "Ah, we are missing AIX for that."

We are not loving our servers anymore. If we need them, we create them. When we don't need them, we delete them. That is what they are. They are just commodities. They are just a transient product.

I have been using it for nine years, since 2012.

The stability has been very good. However, there is a learning curve. We were running huge in-memory databases, about 2.5 terabytes of RAM, which is SAP HANA. Then, we were getting really weird problems, so we asked the app guys 20,000 times to open a ticket because we were seeing all kinds of weird timeouts and things like that on the OS side. We were saying, "It's the app. It takes forever." Finally, they said, "Oh yeah, we use a back-level thing that is buggy and creates a problem." It took us six months and four people to get that from the app guys. We were ready to kill them. That was not good. Whatever you put on Linux, make sure that you have somebody supporting it who is not dumb, or on any platform for that matter.

The scalability is six terabytes. That is what we're doing. We are printing HANA servers on that scale, which are more in the 2.5 terabyte range. However, we had to create one for the migration initiative on the VMware, which was six terabytes with 112 cores. It worked, and that was it. It also works with bare-metal, but you have to be aware there are challenges in regards to drivers and things.

RHEL provides features that help our speed deployment. For example, for SAP HANA, they have full-fledged support for failover clustering using Red Hat HA, which is a solution to create a vintage approach of failover clustering. They do provide extensive support for value-adds for ERP solutions.

They also provide value left, right, and center. Whenever we have a problem, they are always there. We have used both their professional services as well as their Technical Account Manager (TAM) services, which is a premium service to manage the different challenges that we have had within our business. They have always come through for us, and it is a great organization overall.

Their support is wonderful. They will go beyond what is supposed to be supported. For example, we had a ransomware attack. They went 20 times above what we were expecting of them, using software provided by them on a pro bono basis, meaning take it and do whatever you want with it, but it was not ours. That was a nice surprise. So, whenever we have needed them, they did not come with a bill. They came with support, listening, and solutions. That is what we expect of a partner, and that is what they are: a partner.

I, for one, was managing AIX, which is a legacy Unix, as my core competency. I still do because we haven't completed the migration. 

RHEL is a value-add right now. As we are migrating more payloads to containers, we are putting less Linux forethought into these container-hosting servers. You just shove your containers on top of them with your orchestrations. This may reduce our need to manage RHEL like a bunch of containers. That changes the business. 

We were paying for premium SUSE support for an initial pilot of SAP HANA on the IBM POWER platform. We were stuck between an IBM organization telling us, "Go to SUSE for your support," and the SUSE organization saying, "Go to IBM for your support." So, we told them both to go away. 

We are so glad that we haven't mixed the Red Hat and IBM more, because SUSE and IBM don't mix, and we were mixing them. That was prior to the merger with Red Hat. In regards to IBM's ownership of Red Hat, we are a bit wary, but we think that IBM will have the wisdom not to mess it up, but we will see. There is a risk.

The initial setup is as straightforward as it can get for anyone who knows what they are talking about. It does require technical knowledge, because that's what it is: a technical solution. It is not something that I would give to my mother. Contrary to other people's perception of, "My mom had a problem with her Windows. Oh, put her on Linux." Yeah, no thanks. Give her a tablet, please. Tablets are pretty cool for non-techies, and even for techies to a certain extent. 

For the migration from AIX, Ansible has been our savior. You do need somebody who knows Ansible, then it is more about printing your servers. So, you press on the print button, then you give it to the apps guys, but you do have to know what you are trying to aim for so the guy who is creating the Ansible Playbook codes exactly what is required with the right variables. After that, it is just a question of shoving that into production. It is pretty wonderful.

We do get a return on investment with this solution in regards to a comparative cost of ownership of going with the niche solution of IBM AIX systems and hardware. There is a tremendous difference in cost. It is about tenfold.

The integrated solution approach reduces our TCO tremendously because we are able to focus on innovation instead of operations.

RHEL is a great place to go. They have a great thing that is not very well-known, which is called the Learning Subscription, which is a one-year all-you-can-drink access to all of their online self-paced courses as well as their certifications. While it is a premium to have the certifications as well, it is very cool to have that because you end up as a Red Hat certified engineer in a hurry. It is good to have the training because then you are fully versed in doing the Red Hat approach to the equation, which is a no-nonsense approach.

Because it is a subscription, you can go elastic. This means you can buy a year, then you can skip a year. It is not like when you buy something. You don't buy it. You are paying for the support on something, and if you don't pay for the support on something, there is no shame because there are no upfront costs. It changes the equation. However, we have such growth right now on the Linux platform that we are reusing and scavenging these licenses. From a business standpoint, not having to buy, but just having to pay for maintenance, changes a lot of the calculations.

We tried SUSE on the IBM POWER platform, and it was a very lonely place to be in. That was for SAP HANA migration. We are glad that we decided to be mainstream with leveraging what we already had at Red Hat Linux (over a few dead bodies now). We also leveraged the Intel x86 platform, which is very mainstream. 

We are not using the Red Hat Virtualization product. We are using VMware just so we can conform to the corporate portfolio.

Our RHEL alerting and operation dashboard is not our route one right now. We have been using Centreon, which is derived from the Nagios approach, for about seven years.

With AIX, we couldn't get a single software open source to run. It was like a write-off, except for reducing a file system or logical volume in Linux.

We are a bunch of techies here. RHEL is not managed by end users. We don't really mind the GUIs, because the first thing that we do is stop using them. We are using Ansible, which is now part of RHEL, and that can automate the living heck out of everything. For now, we are not using the Power approach, but we may in the future. We are doing a business case for that, as it would be an easy sell for some communities and the use cases are not techie-to-techies.

There is a cloud, but we have very little infrastructure as a service in the cloud right now. 

It delivers to the targeted audiences. Could Red Hat Enterprise Linux be used in all types of other scenarios? Most likely. They have an embedded version for microcontrollers, i.e., things that you put into your jewelry or light switches. However, this is not what they're aiming for.

I would rate RHEL as a nine and a half (out of 10), but I will round that up to 10.

We use it for 

• some of our websites
• one of our main applications for the City of Gothenburg
• automation 
• the underlying operating system for our GitLab server.

We have many different databases running on RHEL. Among them we have MySQL and POSTGRES and they all run great on RHEL 7 and on RHEL 8.

Using this solution, we can offer our customers an easier way to get a WordPress site, and they can have POSTGRES and Tomcat installations, and these run smoother on Linux than they do on Windows.

We also use both Ansible and Satellite from Red Hat. They are integrated with RHEL and they work like a charm. The integration works great. We use Satellite for patching our RHEL servers and we use Ansible to automate the patching and deployment of config files. That means we don't have to worry that much about the patching. If we want to deploy the same config file to 100 systems, we just run the playbook with Ansible and it's done. We don't have to run it on 100 servers.

The most valuable thing for us is the support that we get from Red Hat for the product. One of our most important applications here in the City of Gothenburg runs on RHEL, so if something happens, we have a partner to get support from.

The solution has features that simplify adoption for non-Linux users. There is an interface that you can activate on RHEL systems, and on other Linux systems as well, so that you will get a graphical user interface instead of just a shell. It's easier for an administrator who is used to only working on Windows.

In terms of the deployment and management interfaces for non-Linux users and Linux beginners, for me it was quite easy to get on with Linux and RHEL. And if you're not using the Cockpit, or graphical interface, then it's a bit harder because then you have to type in everything and you don't get any visual guides. On the RHEL systems that we have, we haven't been using the desktop environment; we only just use the shell environment. But using Cockpit is much easier because then you get a visual, graphical interface.

Sometimes they don't have new versions for applications like Apache or PHP. I understand it's because they have to have support for them, so they can't have the latest version all the time, but that's the main thing I see that could be improved.

So when you use RHEL and you want to install, let's say, Apache or PHP, you do a "dnf install php" and you get a specific version that Red Hat releases. But that isn't the latest version that PHP has released, because Red Hat has to make sure that they can support it. The compatibility with the latest version of Apache or PHP lags because RHEL does not release updates of the latest versions.

It's the same with the kernel. Sometimes they are a bit behind in the kernel version. That's the same issue. They have to test it and support it for so many years so that's why they are a bit behind on the kernel as well.

We've been using Red Hat Linux (RHEL) for more than 10 years. We are using versions 6, 7, and 8.

It's a really stable operating system. It has a lifetime of about ten years per version. It's not like other Linux systems where the lifetime is about five years. It's stable and it runs for a long time so you don't have to change the operating system that often.

It's easy to scale up and scale out.

Of the people using our RHEL systems, some are system administrators and some of them are just consuming power or memory or CPU from the server. They only have websites and they don't come into contact with the underlying operating system.

RHEL accounts for about 10 to 15 percent of our servers. Our usage increases all the time.

The solution also enables you to deploy current applications and emerging workloads across bare-metal, virtualized, hybrid cloud, and multi cloud environments. We only use on-premise in our infrastructure, but you can have it on bare-metal or on cloud or multi cloud. For us, it's been running great. It's reliable.

Red Hat's technical support has been quite good. Sometimes the lead times are a bit long because most of the support is in India, it seems, so there is a time difference. But if we need to get a higher level of support, we can just bump up the priority. So that's really good. We will get help faster.

I don't think our company had a similar solution before RHEL, although that was back before I started with the company. The company started with RHEL because they wanted to have support.

Red Hat, as a company, is a big contributor to the open-source community. That's another one of the reasons that we want to use RHEL the product.

The setup was quite straightforward. It was a bit harder with the latest version, but that was because of our VMware version.

For us, deployment takes about 15 to 20 minutes. Most of the time we get someone who orders it. They want to have a website and they need a server and we will spin up a RHEL server for them in our VMware infrastructure.

For deployment and maintenance there are two of us in the company. I'm one of them, in my role as a systems analyst, and my colleague is an IT strategist, although he mainly works as a system admin as well.

In terms of the solution’s single subscription and install repository for all types of systems, we can have as many RHEL installations as we want because we have a specific subscription that entitles us to have as many RHEL services as we want. We pay for a subscription and with that we get RHEL and Satellite as well.

The best thing to do is to go to developers.redhat.com and get free subscriptions for RHEL products, so you can try them out and see how they work before you go ahead and purchase or subscribe.

As far as I know, there are no costs in addition to the standard licensing fees.

We have Ubuntu, CentOS, and other types of Linux versions. The main difference between these products and RHEL is the support that we get from Red Hat. RHEL is also more capable and more stable and it is more of a well-tested operating system before it gets released.

Try the product out. If you decide to purchase a subscription, don't be afraid to submit a ticket or a support case to Red Hat, because that's why you pay for a subscription. It took us a  long time before we started to open support cases, because we thought, "Ah, we can fix this ourselves." But now we use the support system quite often and it works quite well.

One of the things I've learned from using RHEL is that there are applications that work so much better on Linux than they do on Windows.

We use Red Hat Enterprise Linux to host website content. 

The tool's most valuable features are stability and maturity. Linux offers cost efficiency. Red Hat comes at the top of other Linux vendors. I am very satisfied with Red Hat Enterprise Linux's maturity. 

We had issues migrating from the old to the new Red Hat Enterprise Linux version in the virtual environment. It forced us to spin up a new virtual environment to have the new Red Hat Enterprise Linux version. 

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

My experience with Red Hat's support team is positive. They are a lot better than our cloud CMS vendor. 

Positive

We used Sun Microsystems and Unix on on-prem. 

The product supports our hybrid cloud strategy well. 

We move workloads between different clouds and data sandboxes. 

Red Hat Enterprise Linux's knowledge base is quite extensive. It is free, which helps us to advocate the product. I would like it to continue and rate it positive. 

The Red Hat Enterprise Linux web console was helpful and offered visibility through dashboards. It helped us see what was going on with our system. 

I rate it a nine out of ten. 

I work in infrastructure. We have various use cases for Red Hat Enterprise Linux. We use it for the compute feature, which runs on some applications on the front end and databases on the back end.

LVM is a valuable feature. It enables us to dynamically increase the file systems or logical volumes. My journey with this feature started 10 to 12 years ago. 

LVM is the reason why I started using the solution initially. Nowadays, there are a lot of applications. We can use clustering, security, and optimize security.

The product's availability is on the main cloud hyperscalers, like GCP, IBM Cloud, Azure, and AWS. The product should be made available on Oracle Cloud. 

I would like to see Ansible as a default in future releases.

I have been using the solution for 13 to 14 years.

Although some questions are not business-critical and high priority, they are still urgent. The support identifies such questions as P3 or P4 incidents. Although there's no business impact, we depend on the support team for answers.

Neutral

We have used SUSE Linux. We have also used open-source tools like Ubuntu, Fedora, and CentOS. We switched to Red Hat Enterprise Linux due to its vast exposure to security vulnerabilities. Its support model, subscription model, and its support for HANA are valuable.

We use the product on-premise, on IBM Cloud, and on Azure. The subscription model of the solution enables us to use hybrid environments. We can enjoy the benefits of the hybrid environment with the bring-your-own-subscription model.

We have plans for upgrades. We have a legacy Red Hat Enterprise Linux. One of the customers has version 5. We are trying to build an upgrade plan for it. We would like to know whether we can directly land on version 9 or if we should go step by step to each version.

The solution's built-in security features are exciting. I like that the solution covers the recent vulnerabilities in the CVEs. The solution should continue to do that.

Overall, I rate the product an eight out of ten.

We prefer Red Hat Enterprise Linux as our operating system due to its excellent support. If a business wants something, we deliver it and we prefer a Red Hat Enterprise Linux-based system because of the support. It can be a simple application to a big system. It doesn't have pre-defined roles. It's a go-to operating system. 

Our use cases for it vary from plain operating system management to handling specific tasks such as running Oracle databases or other similar applications. They include quite a broad spectrum of requirements. Also, they are not limited to predefined roles but encompass the entire operating system infrastructure.

The solution's SELinux feature is a gold standard for security. It also has the best ecosystem. 

In addition, its automation platform, ITM, is a good product and works well for us.

Some of the solution's features need to be automated. We encounter the hassle of registering the system and attaching a subscription. Our company has development teams, and we have to develop subscriptions for them. Here, having the solution up and running on the developers' machines is a bit of a hurdle. Although we can run it on platforms like Red Hat Connect but, it needs to be somewhat more accessible so developers can just download it and start with the work.

I have been using the solution for 10-15 years.

The solution is stable.

The solution is scalable when combined with automation features. I rate its scalability a nine.

The solution's customer service is good.

Positive

I have used Ubuntu, Fedora, CentOS, and macOS. Initially, I worked as a Red Hat Certified Administrator in RHEL 5. Later, I began to work for its partner company. That is how I switched to the solution. It was not a conscious choice. It just evolved that way.

The solution's initial setup process is straightforward. You have to follow the steps, copy the template and multiply it.

The solution's price is reasonable. If you have a license for the support, they provide excellent services. The support team is always available for help in case of errors or system downtime issues.

RHEL’s built-in security features for simplifying risk reduction and maintaining compliance are good. If you keep SELinux on, it is all good. If you have a system with SELinux off for a long time, it could get you in trouble. The system will make many changes, like restoring files could break your application later. In case you resolve the problems simultaneously, it is fine. 

The troubleshooting feature of Red Hat is excellent. It can solve many issues on the machine right away. In addition, if you have an external scene, then Red Hat Insights is on. I sometimes go to this feature to see its status and what is happening. 

I don't do this on a daily basis and only check it every two weeks, but it's nice to have. I mainly oversee the high-level view of all the systems. This way, I know if the clients' machines need a patch system. 

There are some missing modules for SELinux in Ansible, like the playbook. It becomes a genuine hurdle to manipulate SELinux at the moment. I have to go to the machine, take a file to the repository, and deploy it.

I rate the solution a nine out of ten.

We are running databases and applications on it. We are also using the Squid proxy server, NGINX, and Apache, so we are running multiple services on the servers.

We are using Red Hat Enterprise Linux eight and nine. We also use Red Hat Satellite and Red Hat Ansible Tower.

I've mostly worked with the telcos and banking sectors, and they mostly have on-prem setups. We do have a hybrid environment where we have multiple machines running on AWS. I am based in Saudi, where they are using another cloud called Din. They are running Red Hat Enterprise Linux on Din as well.

Their trainings should be free.

It's more stable than the other operating systems. That's why everyone is using the Red Hat Enterprise Linux platform instead of Windows on the server side.

They regularly send us updates regarding patches and security vulnerabilities. We patch our servers quarterly. Mostly, we do patching every three months. They always send us updates on our official email, so it's quite good.

It would be very good if we can easily migrate from CentOS to Red Hat. We are about to move from CentOS to Red Hat. It would be great if they can give us a free version. Otherwise, we need to purchase licenses, which are quite expensive.

I've been using Red Hat Enterprise Linux for five to six years. I have only been working with Red Hat Enterprise Linux over these years.

Its stability is quite good. I'd rate it a nine out of ten.

I'd rate it a nine out of ten in terms of scalability. It's being used in the banking center, and they are running their applications and databases on it. 

We have LVM configurations, so according to the application, we can increase the disk size. The environment is quite good for my use.

Their support is quite good, and they're responsive, but they first send us to the platform to check the issues. They don't provide direct support immediately. For a new engineer, it can be quite difficult. It would be good if they put us directly on the call in case of an emergency.

Some of the newer engineers require support in a quick manner. Those of us who have experience of six to seven years don't require the support, but in the beginning, we required support, and their support was quite good.

Positive

The product selection depends on the company. Telco companies have the budget, and they are using licensed products, whereas small companies usually use the free versions of Linux. They go for Oracle Linux, CentOS, etc.

We are using CentOS and Ubuntu on some of the machines. The company wanted to go for a free product, but I told them that for any support in the future, we need a licensed product, and they are now migrating to Red Hat Enterprise Linux.

It's best in terms of security features. We configure the templates and then we implement the CIS controls, security features, and complete patching of the server.

In terms of maintenance, Red Hat provides us with the details about the security vulnerabilities, and the engineer needs to implement all the security on the servers.

We did it on our own.

We haven't seen an ROI.

From a management point of view, it's quite good, but everyone is complaining that it's more expensive than the other operating systems.

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

We are in a closed environment, so submitting a ticket can be painstaking as only a few of us have access to do so. We primarily use Red Hat for its stability, and it's one of the few Linux operating systems that meet our security constraints.

I find the satellite feature the most valuable. It allows us to manage disconnected workstations, keeping their patching, software updates, and bug fixes up to date. We can collect all the necessary updates on a connected system and then transfer them to a disconnected system. Each client thinks it's connected to an external satellite infrastructure, making management very easy.

The Image Builder feature seems very helpful. We currently use Kickstart to build systems.

The support can be lackluster sometimes, especially in our disconnected space where we have specific requirements. Occasionally, we encounter support representatives who are not familiar with our setup. So, in that space, personalized and tailored support based on each use case could be better.

In additional features, I would have said being more on the bleeding edge, but RHEL 9 was released, which is a nice push forward. So right now, I don't think there's anything specific. I find the product stack to be pretty decent.

I have been using this solution for three years. We are using versions 7.9 and 8.7.

It's very stable, but that's also why it falls behind at times. For example, if you have newer hardware like systems A and B that were released within the last year, there might be potential sleep issues, specifically with S3 sleep, that require manual patching and intervention in the kernel. It's because they are trying to support newer systems on a much older framework.

I believe RHEL 9 is supposed to mitigate that a little bit. It aims to provide a balance between the latest stable release and the older version that is, like, five years old. They're trying to meet somewhere in the middle.

We have around 30 workstations and approximately 60 servers.

The customer service and support team depends on the environment you are in. The support can be spotty. The support can be spotty; at least they've tried to be helpful. Sometimes they'll just point you to a documentation link, practically like Googling it for you, and it's like, "No, we've already looked at this. Can you please review the logs further?" And sometimes, I'll have to go and pinpoint specific areas to look at. And then it's like, "Oh, okay." 

It's not always very thorough. But it's hit or miss. So I think it's just a people thing. If you get somebody in support who really likes their job or enjoys fixing things, they're going to go out of their way, as opposed to someone who does the bare minimum.

Neutral

The initial setup is very straightforward. It's pretty easy to enable it. After weeks of setting up a Linux Kickstart, the whole system can be deployed. The whole bare-metal system can be deployed in around thirty minutes. So it's really fast, especially for a bare-metal image with a lot of packages installed.

When it comes to maintaining compliance, I think it's pretty good. However, for risk reduction, we have to rely on other software and tools. So I can't really say that Red Hat provides that specific functionality for us. But I think it's good for maintaining compliance is very easy, especially with satellite. It makes it easy for us to access package and vulnerability information, allowing us to identify and resolve any issues. Overall, it works quite well. If you use the right products, I believe you can have all the necessary components in one place.

The portability of applications and containers is pretty good, although there is one issue. With the transition to Red Hat 8, Docker was removed. As a result, there is an issue with using Podman, specifically related to certain types of authentication in a mixed Windows-Linux environment. Due to the way secrets and related functionalities work, Podman cannot be utilized in that scenario. Therefore, there are some challenges to address in this regard.

I believe Red Hat should have maintained compatibility with Docker or at least their own Red Hat Docker until they could bring their software up to speed.

We did the implementation ourselves. The documentation is pretty good.

I save at least a few hours weekly using Red Hat Enterprise Linux (RHEL). 

We got the license through a third party. They buy licenses in bulk for us. We pay them, and they handle the licensing.

Moreover, Red Hat's pricing and licensing structure seems fine. There's not a huge separation. The licenses can cover everything without worrying about the core count, socket count, or similar complexities like VMware and other big companies. It's simple enough to figure out which support contract you want based on the level of support you need.

It's an open source product.

Overall, I would rate the product an eight out of ten. The product is good, and the documentation is really comprehensive. The support is satisfactory as well. Based solely on the product itself, without considering support, we find it stable and capable of supporting various architectures. The documentation is particularly good and stands out. It provides valuable resources, including bug fixes, to people with developer accounts, which are free. Having all that information available is very helpful and resourceful, especially when troubleshooting Linux-related issues.

The documentation is very good, making it easier to troubleshoot any peculiar Linux-related problems.