Latest
How to set up and manage an F5 in the ADC Portal
As an F5 engineer, they asked me to test the product and share my honest thoughts.
Insights from the load balancer experts
Storage
Load balancing Weka is no longer optional — the new normal is 100X faster
Within the space of a few years our customers are demanding increases in performance and capacity — not just 10X, but 100X!..
Healthcare
Help! Our legacy modalities are awesome — but they don't understand DNS!
Connecting remote sites to central data centers necessitates GSLB. But implementation for legacy modalities isn't straightforward...
GSLB
Complete guide to DNS load balancing: Choosing the right method for your applications
DNS is a naming convention that translates human-readable web addresses into IP-addresses, and vice versa...
What exactly is a reverse proxy? Reverse proxy v forward proxy
Technically, the only mode on a load balancer that is a real Reverse Proxy is Layer 7 mode. Whereas all Layer 4 load balancing modes such as NAT, DR and TUN are nothing like a reverse proxy. The clients are effectively talking directly (transparently) to the backend servers...
Comparisons
Great products don't need to be sold
Simply reeling off a list of product benefits doesn’t cut it...
Performance
Voice Activated Load Balancing? Could it actually work
We decided that we would like to be able to change server states and bring them online, offline or drain them. So asking Alexa to do this would look like “Alexa ask Val to change status of website1 to drain”. So we started work with this as our goal...
Events
April Fool antics
After the recent introduction of Enterprise Ultra to our hardware family, plus the recent software update 8.2.4. We are pleased to finally announce our new Voice Activated Load Balancer - Enterprise VAL...
AWS / Azure / GCP
IAM what I am
For several years, if an instance was launched in AWS and during the initial configuration an IAM role was not defined, the only option available was to stop/terminate the instance and launch another, however, this has now changed!..
Healthcare
DelftDI recommends Loadbalancer.dk for load balancing critical medical imaging systems
The stability of the Loadbalancer.dk products enables DelftDI to ensure the high availability of its medical imaging solutions...
How-tos
Loadbalancer.dk Enterprise VA with oVirt(RHEV) 4.1
The appliance works quite nicely in a oVirt environment and should work just as well with a full Red Hat’s Enterprise Virtualization environment (RHEV)!..
Microsoft
MS SQL Health Check
Follow the instructions below to install and configure the external health check, and once you've completed the steps you can use the health check for either layer 4 (LVS) or layer 7 (HAPr0xy) clusters...
Comparisons
Do you remember when you could get fired — for not buying F5?
A pair of F5s is a great solution, but mainly if you need to run a crazy number of applications and servers through a single device. In that case, you definitely need an expensive, complicated, over-specified and over-engineered single point of failure...
HAPr0xy
Loadbalancer.dk must've been well behaved in 2016
HAPr0xy Technologies' ALOHA Pocket is a full-featured ALOHA Load Balancer running on a light USB-powered hardware that easily fits in a pocket, meaning it's possible to carry it everywhere to run tests and demos...
How-tos
Loadbalancer.dk with Let's Encrypt - quick and dirty!
Let’s Encrypt offers us a free way to get SSL certificates with the aim of being less complex than other current solutions...
GSLB
GSLB — Why Global Server Load Balancers don’t always suck? (Polaris-GSLB) Part 2
In part one we were introduced to Polaris-GSLB which is a cool little open source GSLB solution. In part two of this Blog I’m going to show you how to build Polaris-GSLB on CentOS 7...
GSLB
GSLB – Why Global Server Load Balancers don't always suck? (Polaris-GSLB)
Here at Loadbalancer.dk we’re not known for being huge fans of GSLB solutions as some of our customers may already know...
Events
IP EXPO Europe 2016
We engaged in some great conversations with people over the two days. This is why we love IP EXPO - talking through the problems customers are experiencing today...
Security
Blocking Japan with ModSecurity and Maxmind Lite
The Web Application Firewall is based on ModSecurity which is an open source WAF for Apache, IIS, and Nginx for protecting against a many variety of attacks and allows for HTTP traffic monitoring and logging...
Open source
Transparent HAPr0xy in Azure using TProxy
HAPr0xy is an excellent choice if you need layer 7 functionality, but its a full reverse-proxy, so the application thinks that all of the traffic is coming from HAPr0xys IP - rather than the clients...
Healthcare
I didn't realise NTP was so important for medical imaging systems like PACS and VNA
We can write custom health checks specific to your environment checking availability of servers as well as other backend systems such as REST servers, databases and storage...
High Availability
Disaster recovery is more important than HTTPS SNI support...
SNI is an extension to the TLS protocol which enables the client to broadcast its hostname when it tries to connect to your server. This allows you to use multiple SSL certificates on a single IP...
Events
Thank you to all who visited us at IP EXPO Manchester 2016
This was Loadbalancer.dk's first time exhibiting at the Manchester version of IP EXPO. After many years attending the London event, we can safely confirm that the Northerners are a much more chatty bunch...
AWS / Azure / GCP
Integrating your load balancer with auto scaling groups in EC2 (Amazon AWS)
The Loadbalancer.dk for AWS appliance will monitor auto scaling groups, update configs based on auto scaling events and add/remove servers...
Events
Exhibiting at Cloud Expo Europe 2016
We met lots of people and gave away a lot of lanyards...in fact the show organizers ran out of lanyards, so Loadbalancer.dk were happy to fill the void...
Open source
How to stop TPROXY when used with HAPr0xy breaking clients in the real server subnet
Once HAPr0xy is running transparently, it will allow the real server to see the client IP so the real server will reply directly back to the client bypassing the load balancer...
Application Management
Load balancing Microsoft Remote Desktop Services in AWS
Using the flexibility of both AWS and our Enterprise AWS appliance, it's possible to configure a secure and robust load balanced Remote Desktop Services deployment to suit a range of requirements...
How-tos
Supporting two default gateways on your Load balancer with PBR (Policy Based Routing)
Policy Based Routing is a clever way to give us more control over which routing path connections will take. It allows us to specify custom routing tables and then add rules offering fine grained control over which routing table a connection will use...