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OpenSSH daemon hardening ( Part 2 ) - How to use RSA/DSA Keys [ANNOUNCEMENT]

Posted 12-10-2010 at 08:19 AM by angelo.fonzeca (Angelo Fo. personal blog)
Updated 12-13-2010 at 06:30 AM by angelo.fonzeca

[Note: This is a draft version of the post; it'll be revised as soon as possible]

Introduction

In my previous post, I explained you how to configure OpenSSH for improving its security. By the way, if your SSH service is available on the Internet and accessible by any IP address (e.g. You connect your client on the internet with a dynamic IP address and/or you want reach your server from anywhere...), it can be more exposed to brute force attacks! So a new "hardening...
PerseusGuard Developer
Posted in Linux Security
Views 956 Comments 0 angelo.fonzeca is offline
Old

OpenSSH daemon hardening ( Part 3 ) - Setup a chroot enviroment on CentOS with JailKit[ANNOUNCEMENT]

Posted 12-10-2010 at 08:16 AM by angelo.fonzeca (Angelo Fo. personal blog)
Updated 12-13-2010 at 06:31 AM by angelo.fonzeca


[Note: This is a draft version of the post; it'll be revised as soon as possible]


Introduction - What is a chroot?


"A chroot on Unix operating systems is an operation that changes the apparent disk root directory
for the current running process and its children. A program that is
re-rooted to another directory cannot access or name files outside that
directory, and the directory is called a "chroot jail" or
...
PerseusGuard Developer
Posted in Linux Security
Views 1499 Comments 0 angelo.fonzeca is offline
Old

How-to: Harden a Linux Web Server (Overview) [ANNOUNCEMENT]

Posted 12-10-2010 at 08:02 AM by angelo.fonzeca (Angelo Fo. personal blog)
Updated 12-13-2010 at 06:32 AM by angelo.fonzeca

Introduction

Last weeks on "System administrators" group on Linkedin, the members talked about how to harden a GNU/Linux web server for an hacking contest.
Because I think it was born an intersting "to do" list about the argument during a post of mine, I have taken the decision to report in this article the ideas and my vision of the problem.

The following words are what I wrote...


Hardening Linux step-by-step
...
PerseusGuard Developer
Posted in Linux Security
Views 1497 Comments 0 angelo.fonzeca is offline
Old

FIC and Rootkit Revealers for Gnu/Linux - How to use Rkhunter, Chkrootkit, Afick [ANNOUNCEMENT]

Posted 12-10-2010 at 07:53 AM by angelo.fonzeca (Angelo Fo. personal blog)
Updated 12-13-2010 at 06:34 AM by angelo.fonzeca

File Integrity Checkers and Rootkit Revealers for Gnu/Linux - Part 1

Original post at digitalpatch.blogspot.com

Introduction


Are you afraid that your system has been compromised by an unauthorized access?
Have you got discovered abnormal network activities and/or do you suspect that your system has been infected by trojans or rootkit?

Is this your nightmare?

No problem, there are some solutions which help...
PerseusGuard Developer
Posted in Linux Security
Views 776 Comments 0 angelo.fonzeca is offline
Old

My Linux journey

Posted 12-01-2010 at 02:31 PM by druonysus

My story starts in 2003 when I was taking an A+ certification training course my high school offered. One day a friend of mine/classmate brought in several CDs and said they had an operating system called Linux on them. I had never heard of Linux before this and so he did his best to explained though he didn't know much more than I did about it. The CDs collectively made up the installation disks for Mandrake. We took the entire class-day to install Mandrake and mess around with it a bit. At that...
LQ Newbie
Posted in Uncategorized
Views 3836 Comments 2 druonysus is offline

  



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