Blog
Load balancing insights, release news, and infrastructure deep-dives from the Tula Networks team.
One VIP, Many Domains: HTTPS Multi-Tenancy with SNI
SNI ended the era of one IP address per HTTPS site. What replaced it needs judgement about multi-tenancy rather than TLS: which certificate...
28 Sep 2026
Migrating from F5 BIG-IP: A Concept-by-Concept Guide
Virtual servers, pools and monitors map across almost mechanically. What stalls a BIG-IP migration is a folder of iRules nobody has catalogu...
21 Sep 2026
Sticky Sessions Done Properly: A Practical Guide to Session Persistence
Users losing their logins or baskets mid-session is usually a persistence problem. How to choose between source IP and cookie persistence, w...
31 Aug 2026
Reading the Signals: Load Balancer Metrics That Actually Matter
Your load balancer watches every connection to every service you run — which makes it the best vantage point in your infrastructure. The met...
25 Aug 2026
Terminate, Passthrough, or Re-encrypt? Choosing an SSL Strategy for Your Load Balancer
Where TLS ends determines what your load balancer can do. A decision guide to the three SSL modes — termination, passthrough, and re-encrypt...
24 Aug 2026
Five Signs Your Business Has Outgrown Its Load Balancing Setup
Traffic layers rarely fail loudly — they fall behind quietly. Five warning signs that the setup which got you here won’t get you further, an...
21 Aug 2026
GSLB Explained: Load Balancing Across Data Centres with DNS
Global Server Load Balancing steers users to the right data centre before a connection is ever made — using nothing more exotic than DNS. Ho...
19 Aug 2026
Your Load Balancer Is a Single Point of Failure. Here’s How to Fix That
A load balancer that protects you from server failures but has no failover of its own is a liability. How active-passive HA with VRRP works,...
17 Aug 2026
Round Robin Is Not Always Right: Choosing a Load Balancing Algorithm
Round Robin, Least Connections, weighted variants, and hash-based schedulers each suit different workloads. A practical guide to picking the...
14 Aug 2026
The True Cost of Doing Load Balancing the Hard Way
Free software is not free infrastructure. Where the real money goes in a DIY traffic layer — engineering hours, incident exposure, and key-p...
12 Aug 2026
Layer 4 or Layer 7? Picking the Right Load Balancing Mode
Kernel-speed packet forwarding or full application-layer proxying? Understanding the trade-offs between L4 and L7 load balancing — and when...
10 Aug 2026
What Is Direct Server Return, and When Should You Use It?
Direct Server Return lets backend servers reply straight to clients, bypassing the load balancer on the return path. Here is how it works, w...
7 Aug 2026
Load Balancing Is Easy — Until It Isn’t
A basic HAProxy config takes twenty minutes. Certificates, health checks, failover, monitoring, and safe change management are where the rea...
5 Aug 2026