Latest
Hardening HashiCorp Vault with load balancing for always-on security
In a production environment, Vault downtime isn't just a security risk — it’s a total operational hard-stop.
Insights from the load balancer experts
How-tos
What is Stunnel and how do you configure it?
Here is another example of a more “exotic” Stunnel configuration. Most people, and rightly so, will ask “but why?”. Well, because we can!..
Automation
Solving the Layer 4 ARP problem on Linux with Ansible
The ARP problem for Layer 4 DR (Direct Routing) mode is something that needs to be solved for each of your Real Servers in the virtual service...
GSLB
Choosing the best option to host across multiple locations or data centers
Organizations are moving away from the traditional data center model, and favoring a hybrid approach to hosting their systems and applications, that involves multiple sites, providers and even cloud environments...
Application Management
Load Balancing Exchange 2016
Exchange 2016 is Microsoft's latest enterprise level messaging and collaboration server...
HAPr0xy
How to write an external health check script for HAPr0xy
Loadbalancer.dk were the original sponsors of the external health check mechanism in HAPr0xy. We think it's an invaluable tool when you need something a bit special...
WAF
Why use a WAF? Because what doesn't kill you makes you stronger
Our helpdesk often encounters confusion about Web Application Firewalls, or WAFs - what they are, how to use them, and what issues they can potentially cause...
Print
Printing without pain: How to scale print environments and avoid downtime
Print environments often bring together multiple technologies and applications, which can present challenges. There’s the issue of planned downtime: end-users may need to make manual changes to their network when print services fail, taking servers out of production for maintenance or updates.....
HAPr0xy
New year, new vulnerability: HAPr0xy critical security update
An incorrect frame length check could result in a read-past-bound which can cause a crash...
Direct Server Return
15 years later, we still love DSR: Why Layer 4 DR mode rocks
For the uninitiated, Direct Server Return is a clever trick which entails directly routing packets to the chosen real server...
Events
RSNA 2018: Future tech and present problems
Last month we made our annual visit to the Radiological Society of North America (RSNA) conference in Chicago...
High Availability
Can you load balance multiple applications at the same time? The pros and cons
Performance is not generally an issue when load balancing multiple applications - but maintenance is...
WAF
Brute force login: Simple protection techniques with the ModSecurity WAF
The web-based login to your application is a juicy target for hackers. And once they get past the login, they can cause you some serious pain...
Healthcare
The need for load balancing in medical imaging
Load balancing provides a fast, highly available and scalable architecture for the transfer, storage and retrieval of medical images...
WAF
Darktrace: When looks aren't everything
An engineer at a business using Darktrace, confessed that many IT staff ignored the pricey security software because it sent so many false alerts...
Healthcare
It all turned out OKI
This demonstrated to OKI that no matter how their customers' network infrastructure is configured, we have the deployment options to suit their needs...
HAPr0xy
HAPr0xy critical security update — to avoid simple(ish) DoS attack (20 September 2018)
A critical security issue has been found in HAPr0xy, leaving certain systems vulnerable to remote attack. We want to keep you informed, and we understand that this news might cause you some anxiety. But be reassured - most of our customers won’t be affected...
Security
Let's Encrypt — how did we survive without it?
Let’s Encrypt is awesome! Not only is it more secure than your existing certificate authority. It's also reliable, scalable, fully automated — and free!..
AWS / Azure / GCP
FC Barcelona choose Loadbalancer.dk in AWS for flexibility and security
With our 9 years expertise in making applications within AWS indestructible, Loadbalancer.dk was able to provide FC Barcelona with an intelligent application delivery controller built on 15 years' worth of battle‑hardened software...
Comparisons
Kemp Technologies vs Citrix NetScaler ADC — who cares about the price?
Typically, Citrix NetScaler customers have a few hundred load-balanced clusters, with 3+ Gbps and 10,000+ SSL transactions per second (TPS). Whereas your typical Kemp customer will have 2-5 load balanced clusters with less than 100 Mbps throughput and less than 5 SSL TPS...
Application Management
Monitoring Loadbalancer.dk appliances using OmniCenter from Netreo
OmniCenter is a server monitoring, alerting and reporting product which can be deployed to monitor your whole network/infrastructure, providing a single place to view of all systems and alerting you if there are any problems...
Application Management
Nutanix Ready, a great platform now comes with a certified load balancer
We have built upon our existing strengths in virtualized environments to become Nutanix certified, with the addition of support for Nutanix AHV positions...
Events
The Queen's award deserves a royal celebration, what's next?
The awards recognise outstanding achievement by UK businesses in the categories of: International Trade, Innovation, Sustainable Development...
Comparisons
Loadbalancer.dk: The IT Central Station community weighs in
One of the top themes that has come up in our users’ reviews is their unparalleled technical support:..
Performance
Load balancing your load balancers for a crazy amount of SSL TPS
The plan is to use an inexpensive pair of load balancers - using Layer 4 DR mode for maximum throughput and transparency - to load balance some more mid to high-end load balancers. This enables us to handle the SSL offload at a much more affordable price than simply buying a big box...
AWS / Azure / GCP
How to design a disaster recovery plan for your cloud infrastructure
To design a well-targeted disaster recovery plan, you need to work out two key metrics: the Recovery Point Objective (RPO) and the Recovery Time Objective (RTO)...
HAPr0xy
What exactly is a 'Modern DevOps' load balancer?
It's really annoying when people believe that something traditional (proven to work) is somehow worse, than something that is modern (looks like a cool idea)...
Open source
Does the new multi-threaded support in HAPr0xy finally solve the 10G problem?
It’s no big secret that a single processor can only handle so much processing in a given time. So what happens when you reach the limits of what a single processor can handle? Simple, you add more processors...