Most Helpful Review
We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
It is the best product out there.
It has an easy user experience and user interface. The security is effective and better than its competitors.
This product protects us from Internet attacks using its firewall features to block any attacks.
Scalability is great. One of the best features of NetScaler is that it can scale out.
This solution allows the user to easily scale out application delivery, and provides secure remote access.
One feature that works really well is the SSL VPN. It's very easy to set up and you can go very granular with it. You can define what user groups get what kind of access and the management overhead is very low.
I like the monitoring ability as it enables me to identify when an internal (load-balanced) resource is having issues before it becomes a problem in production.
Content Switching provides flexibility for routing traffic as desired to designated real servers. It also provides good geo capabilities through its GSLB feature.
I can simplify configurations of many internal services (e.g. Web server configs) by moving some elements (like SSL) to HAProxy. I can also disable additional applications, like Varnish, by moving traffic shaping configurations to HAProxy.
Advanced traffic rules, including stick tables and ACLs, which allow me to shape traffic while it's load balanced.
Performance configuration options with threads, processes, and core stickiness are very valuable.
The ability to handle a sequence of front- and back-ends gives the user the opportunity to send traffic through different services.
We were able to use HAProxy for round robin with our databases, or for a centralized TCP connection in one host.
It reduced the load on our main load balancers.
We did not need technical support because the documentation is good.
The most important features would be the load-balancing of HTTP and TCP requests, according to multiple LB-algorithms (busyness, weighted-busyness, round robin, traffic, etc). Another important feature that we cannot live without is the username/passwd authentication for legacy systems that had none.
It can be difficult to setup.
We would like to see more monitoring features going forward, because the current product monitoring options are not enough for security usage.
I would like to see more integration for single sign-on.
Should offer more flexible cost-effective licensing for small to medium sized organizations.
The customization has always been a key area where some improvements are required. In the beginning, everything was for customizing the outer shell of it. You had to use the command-based utility and you had to do a lot of manual work. They have improved it a little bit and now there are some GUI-based functionalities that can be used. However, more can be done that doesn't require a lot of intervention. Right now there are some features, there are some customizations that can be done, but it's still very tedious, very cumbersome, a lot of work. So that could be simplified.
In every release - and it doesn't matter if it's a minor release or a major release - they keep moving things around and they keep changing the mechanism. So certain things can work in one version one way, and everything works really well, then when you upgrade it to the next version, it breaks everything because they have a new way of doing it.
Development team's response time could be better.
Needs configuration processes like disabling LB VIPs, automatically disabling the IPs used.
There are three main areas to improve: 1) Make remote management more modern by adding API. 2) Propose a general HA solution for HAProxy (no I'm using keepalived for this). 3) Thread option should be a bit more stable.
The configuration should be more friendly, perhaps with a Web interface. For example, I work with the ClusterControl product for Severalnines, and we have a Web interface to deploy the HAProxy load-balancer.
We need to handle new connections by dropping, or queuing them while the HAProxy restarts, and because HAProxy does not handle split config files.
The web stats UI, which provides the status of the health and numbers, could greatly benefit from having a RESTful interface to control the load-balanced nodes. Although there is a hack around the UI (by issuing a POST request to HAProxy with parameters), a RESTful interface would greatly improve the automation process (through Chef and Ansible).
I would like to evaluate load-balancing algorithms other than round robin and SSL offloading. Also, it would be helpful if I could logically divide the HAProxy load-balancing into multiple entities so that I would install one HA Proxy LB application which could be used for different Web servers for different applications. I am not sure if these features are available.
They should introduce one feature that I know many people, including me, are waiting for: HAProxy should have provide hot-swipe for back-end servers. Also, they need a more detailed GUI for monitoring and configuration.
It needs proper HTTP/2 support.
Maybe HAProxy could be more modular.
Pricing and Cost Advice
I do not have any experience with the pricing of the product.
We are quite happy with price. It's not too high.
The licencing model that we bought has been good. The licencing model is more flexible.
We have been evaluating F5, Citrix, and other ADC products. Citrix is the most expense of all of them.
It is true that it is a bit pricey compared to newer technologies coming to the market. For example, A10 is a load balancer that does everything that Citrix can and it does a lot more than what NetScaler does when it comes to the security space, and their prices are so cheap. Every box comes with its own license and support built into it. When you compare that with NetScaler, you have to buy licenses separately, you have to buy a support agreement that is going to be separate. A small NetScaler, even if it is a VPX which is a virtual server, could cost you close to $150,000 to $200,000 dollars. So the pricing is really high.
It all depends on the features that will be used and the number of accesses.
Costly product and complicated licensing.
It's not for startups or SOHO.
I think that the pricing is very fair, I would definitely recommend buying the Enterprise license.
We use NGINX as well. However, because the health checks are a paid feature, I like to avoid it whenever possible.
If you don't have expertise then go with the licensed version. Otherwise, open-source is the best solution.
Very good value for the money. One of the simplest licensing schemes in this category of products.
Test/lab virtual machines can be installed without a licence. They can't be used for performance testing but otherwise behave like production nodes.
The price is well worth it. HAProxy Enterprise Edition paid for itself within months, simply due to the resiliency it brings. It was a bit more expensive than we were originally interested in paying, but we are thankful we chose to go with HAProxy.
HAProxy is free software. There are optional paid products (support/appliances).
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out of 26 in Application Delivery Controllers
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Also Known As
|NetScaler||HAProxy Community Edition, HAProxy Enterprise Edition, HAPEE|
|Citrix NetScaler is deployed in thousands of networks around the globe to optimize, secure and control the delivery of all enterprise and cloud services, and to maximize the end user experience for all users including mobile clients.|
HAProxy is the most widely used software load balancer and application delivery controller in the world. The core HAProxy application delivery engine is an open source project chiefly maintained by HAProxy Technologies and assisted by a thriving open source community. HAProxy Community Edition is available for free at haproxy.org. HAProxy Enterprise Edition is packaged with additional enterprise class features, services and premium support from HAProxy Technologies.
Learn more about Citrix NetScaler ADC
Learn more about HAProxy
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