GeneralThis forum is for non-technical general discussion which can include both Linux and non-Linux topics. Have fun!
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
In the default setting of apple os 10.3, at the start up, if you press command + s, then it login you into a terminal session automatically as ROOT!!!!!!!!!! (just let you know, when i was in the netinfo, it tells me the root is DISABLED)
How do you fix that?
Also, in the netinfo, you can't see people's encrypted passwd, where can you go and get that?
See the discussion in this thread about the difficulties of securing a box an attacker has extended physical access to.
What they suggest is use the Open firmware password utility found at Apple's site to disable booting in single user mode, which is what you're doing with the command-s. However as they state, if you forget THAT password you're screwed, as of course, you won't be able to zap the PRAM anymore, or boot in single user mode, or any number of other things, which could be problematic.
And best of luck, because Windows Mac or Linux, maintaining a lab for a group of motivated "smart" students is going to be a security challenge deluxe. I definitely recommend bios passwords, bootloader passwords, and ready-to-go system images all around.