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Discover How To Harden My Filesystem HOWTOs

OpenSSH key management, Part 1

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In this series, you'll learn how RSA and DSA authentication work, and see how to set up passwordless authentication the right way. In the first article of the series, Daniel Robbins focuses on introducing the RSA and DSA authentication protocols and

Anthony Pell
Nov 29, 2004

The Simplest Security: A Guide To Better Password Practices

While we may find them annoying, and even take them for granted, it is important to remember why passwords are important: passwords are the foundation of authentication, which is often the first line of security. This article will provide a brief ove

Anthony Pell
Nov 29, 2004

Building a Secure User Environment with SSH ChRootGroups

This article will provide an overview of SSH ChRootGroups feature; which provides a quick and easy way for administrators to lock users inside a chrooted cage.

Anthony Pell
Nov 29, 2004

PIKT, Problem Informant/Killer Tool

PIKT is a cross-categorical toolkit for monitoring and configuring systems, organizing system security, formatting documents, assisting command-line work, and performing other common systems administration tasks.

Anthony Pell
Nov 29, 2004

NTop

ntop is a Unix tool that shows the network usage, similar to what the popular top Unix command does. ntop is based on libpcap and it has been written in a portable way in order to virtually run on every Unix platform and on Win32 as well.

Anthony Pell
Nov 29, 2004

Bogon.c

Bogon.c tests if a host is in promiscuous mode.

Anthony Pell
Nov 29, 2004

SAINT

"SAINT is the Security Administrator's Integrated Network Tool. In its simplest mode, it gathers as much information about remote hosts and networks as possible by examining such network services as finger, NFS, NIS, ftp and tftp, rexd, statd, and ot

Anthony Pell
Nov 29, 2004

SARA

SARA is the Security Auditor's Research Assistant. SARA is based on the SATAN security analysis model and is frequently updated to address the latest security threats.

Anthony Pell
Nov 29, 2004

Incident Response Tools For Unix, Part One: System Tools

This article is the first in a three-part series on tools that are useful during incident response and investigation after a compromise has occurred on a OpenBSD, Linux, or Solaris system.

Anthony Pell
Nov 23, 2004

Session Fixation Vulnerability in Web-based Applications

Web servers are employing techniques for protecting session IDs from three classes of attacks: interception, prediction, and brute force attacks. This paper reveals a fourth class of session attacks against session IDs: session fixation attacks.

Anthony Pell
Nov 23, 2004

Controlling Access To Your Services With xinetd

This program is a "secure" replacement for inetd, meaning in this case that it offers many features that allow you to control who accesses which services, and from where.

Anthony Pell
Nov 23, 2004

Hosting email for virtual domains using Postfix and Cyrus

This document makes a humble attempt in explaining how to get Cyrus to work.

Anthony Pell
Nov 23, 2004

Scanning for Rootkits

This documentation discusses a way to scan your system for Rootkits. The information provided is not meant to replace common security practices, but might prove useful when used in conjunction with these practices.

Anthony Pell
Nov 23, 2004

Chrooting All Services in Linux

Chrooted system services improve security by limiting damage that someone who broke into the system can possibly do. This article discusses, in depth, how to do so.

Anthony Pell
Nov 23, 2004

Linux Kernel Hardening

This article will cover the issues of Linux hardening, with a specific focus on kernel hardening and its use on production systems. Several kernel-hardening approaches and their usability will be analyzed.

Anthony Pell
Nov 23, 2004

Using The Coroner's Toolkit

This documentation discusses the use of two TCT tools, unrm and lazarus, on the Sun Solaris operating system, version 2.x. You can use this approach with other UNIX operating systems and hosts.

Anthony Pell
Nov 23, 2004

Responding to a Security Incident

This documentation will discuss intrusion detection and help you recognize and detect port probes, port scans, denial of service (DoS) attempts and unauthorized access attempts.

Anthony Pell
Nov 23, 2004

Uncovering the secrets of SE Linux

This documentation will discuss the U.S. National Security Agency's security-enhanced version of Linux. This documentation takes a first look at this unexpected development -- what it means and what's to come -- and delves into the architecture of SE

Anthony Pell
Nov 23, 2004

The passphrase FAQ

This documentation discusses all aspects of passphrases, how to make them strong and how to crack them.

Anthony Pell
Nov 23, 2004

The SANS Security Policy Project

SANS has some great information on generating security policies, and a few examples.

Anthony Pell
Nov 23, 2004

How To Harden My Filesystem - Page 6

5 Linux File and Folder Management Commands You Need to Know

How To Easily Change Folder and File Permissions on Linux

How to Encrypt and Securely Transfer Files with GPG