Category: Security

I’ve just setup the Yama LSM module on some of my Linux systems. Yama controls ptrace which is the debugging and tracing API for Unix systems. The aim is to[...]

On a Linux system if you upgrade a shared object that is in use any programs that have it mapped will list it as “(deleted)” in the /proc/PID/maps file for[...]

There’s a lot of advice about how to create and manage user passwords, and some of it is even good. But there doesn’t seem to be much advice about passwords[...]

Some of the workstations I run are sometimes used by multiple people. Having multiple people share an account is bad for security so having a guest account for guest access[...]

I previously wrote about running my SE Linux Play Machine over Tor [1] which involved configuring ssh to use Tor. Since then I have installed a Tor hidden service for[...]

I was asked whether it would be safe to open a link in a spam message with wget. So here are some thoughts about wget security and web browser security[...]

At LCA I attended a talk about Unikernels. Here are the reasons why I think that they are a bad idea: Single Address Space According to the Unikernel Wikipedia page[...]

Compatibility/interoperability is a good thing. It’s generally good for systems on the Internet to be capable of communicating with as many systems as possible. Unfortunately it’s not always possible as[...]