Linux - SecurityThis forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.
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.
I am setting up a server behind netgear wg614 router and using port-forwarding for web server and soon going to install postfix. I wonder if i still need things like iptables? I am installing clamav and probably amavis. Is there anything else i need to consider?
hmm, i did an nmap scan and the rating is only 7xxx (worthy challenge). I thoguht behind NAT things are pretty safe ? My router has SPI Firewall which protects LAN against Denial of Service attacks. I have only port 3389 and 8080 open.
Can you name a few biggest threat on my linux server from network perspective? I just not sure which aspect i should read up from .
I would think that at a minimum you would want a program like Tripwire or Aide running, so that if you are compromised, you have an idea of what files were affected.
Security is largely a reflection of your personal level of paranoia. Certainly having the server behind a router is safer, but I don't know if I would call it safe. If you are just serving web pages, you'll need to bone up on Apache threats, but that isn't sufficient. Apache is probably much more secure than many of the applications it can serve up. Chrooting Apache would make it safer in case one of the applications was compromised.
Spend some time in the sticky threads at the top of the forum. unSpawn has collected a lot of good information and then decide what approaches make you feel safer.