Category: Security

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[...]

Lets Encrypt is a new service to provide free SSL keys [1]. I’ve just set it up on a few servers that I run. Issues The first thing to note[...]