Etherarp
Etherarp

Networking, Security, Linux

Etherarp

Networking, Security, Linux


Routeable Loopback Addresses

Today we will learn about loopback addresses that can be reached from the outside via routing. This is useful for running services on a router In a previous post, I talked about the loopback interface and how we can locally bind services to any address in the range 127.0.0.1-127.255.255.254. This is…

Rohan Molloy

Secure SSL configuration for Nginx

Here is a handy snippet for configuring a hardened SSL/TLS on Nginx. It receives a A+ rating when tested at Qualys. A later post will discuss the configuration options in detail, what they do, and how SSL works. Just a word of warning, this configuration enables HSTS by default. If enabled, it tell…

Rohan Molloy

Securing services with stunnel

Stunnel is a tool that allows you to seamlessly add TLS to most existing services. Stunnel listens on a port, and can either receive encrypted traffic and pass it to an unencrypted destination, or it can receive unencrypted traffic and forward that to an encrypted destination. TLS is commonly used t…

Rohan Molloy