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Securing Linux systems with host-based firewalls implemented with Linux iptables
The goal of this article is to provide the reader with a template for constructing a host-based firewall that provides a useful layer of protection against the risks of exposing a system to internal and/or external users. Additionally, the reader can gain an understanding of construction methods for host-based firewalls in general and Linux-based firewalls in particular.
This article is targeted for use with RedHat Advanced Server 2.1 and SuSE Enterprise Server 8, but most of the material applies to distributions based on Linux kernel version 2.4 and newer.
We assume that the reader is capable of creating basic Bourne shell scripts and can perform basic system administration tasks.
By Sun Microsystems at InformIT.
[ Read more ]
Spotlight
Review: Logging and Log Management
Posted on 22 May 2013. | Every security practitioner should be aware of the overwhelming advantages of logging and perusing logs for discovering system intrusions. But logging and log management comes with its own set of difficulties.
Experts highlight top data breach vulnerabilities
Posted on 22 May 2013. | Hidden vulnerabilities lie in everyday activities that can expose personal information and lead to data breach, including buying gas with a credit card or wearing a pacemaker.
A closer look at Mega cloud storage
Posted on 21 May 2013. | Once a novelty, nowadays many cloud storage services are fighting for their piece of the market in the virtual world. Mega offers 50GB of free space with great pricing on Pro accounts.
The CSO perspective on healthcare security and compliance
Posted on 20 May 2013. | Randall Gamby is the CSO of the Medicaid Information Service Center of New York. In this interview he discusses healthcare security and compliance challenges and offers a variety of tips.
Cyber espionage campaign uses professionally-made malware
Posted on 20 May 2013. | A massive cyber espionage campaign has been hitting government ministries, IT companies, academic research institutions, and more.
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