During the last days I had to install SUSE- and RedHat Linux on some machines and I had time to take a closer look at booth. The first thing on RedHat that caught my eye was SELinux as a cute way of limiting damage on a security breach. SUSE uses their own thing called AppArmor to make things […]
Tag: security
Ouch!
Talking about security, you should never drop any good habits or lower anything due to laziness – nature will strike back. Promised. Imagine sword fighting with children using padded swords could be considered to be harmless, don’t it?
Good things coming from above
The old german proverb saying that good things are coming from above and the fact that north is shown ‘above’ on maps make me think. In fact, things discussed on heise are often a preview on what is about to happen in austria. The legislatement of the ‘hackers paragraph’ is one of the things that make me worried. […]
Logging out…
I do not know what you think about that, but I hate it if confidental information stays on screen after logging out of a terminal. The solution is simple: echo clear >> ~/.bash_logout The solution explained: On logging out bash parses the .bash_logout script. We just tell bash here to have the screen cleared.
pfSense and the Captive Portal
No, I am not talking about the IT version of a fairy tale but a small networking tool to secure your network: the captive portal What the hell am I talking about? Captive portals are authentication layers on firewalls. You have to enter your credentials before you can proceed connecting your web. They are mostly used at WLAN […]
Backups on unknown machines
If you rent a root server, there might be some ftp space to do backups included. But where are those backups stored? You never know if this server is ‘open to public’. What now?