Web Filters / Proxy - A blog from the load balancer experts

Transparent vs Explicit proxy — which method should I use?

Neil Hosking • June 14, 2017 • Web Filters / Proxy, Direct Server Return (DSR), How-To's, Security, Top 10 Blogs

Different vendors have widely different opinions on which method should be used to deploy web filters or SWGs (secure web gateways). Historically, vendors struggled to implement authentication in Transparent mode, and maybe they remember some awkward conversations with customers that chose the wrong method. The tricky thing is that even...read more

What exactly is a Reverse Proxy?

Aaron West • April 20, 2017 • Web Filters / Proxy, Top 10 Blogs

"I don't think we can use your load balancer, because it's not a reverse proxy..." said the slightly confused reseller. Which got me thinking, maybe I should write a blog about the difference between a Reverse Proxy Server and a Forward Proxy Server? For that matter - what...read more

NTLM authenticating proxy check script

Mark Brookes • July 15, 2011 • High Availability, Web Filters / Proxy

We do quite a bit of work with web proxy vendors, load balancing multiple web filters/proxies with our appliances and our customers have requested a way of health checking through the proxy when they have NTLM authentication enabled. Always happy to help where we can, I have created a...read more