Security Toolbox

Special Thanks: This article was made possible by support from Linux Professional Institute

A standard server or minimal install (CentOS) provides you with a secure server system, but its production usefulness is very limited. To make a server production ready, you’ll have to install software such as web services, DNS, DHCP, Samba/CIFS, print services, and databases. Because these services communicate over the network, security vulnerabilities are an inevitability. Exposing any service provides an attack vector. However, there are actions you can take to protect your systems and your data from attacks.

There are too many utilities available, both free and commercial, to help secure your systems. This article provides you a brief overview of the most common methods and utilities to help you maintain system security. Please remember that security is a best effort and that no system is 100 percent secure, but using these hardening suggestions will make it more difficult for malicious actors to compromise your systems.

[...]

Use Express-Checkout link below to read the full article (PDF).

Buy Linux Magazine

SINGLE ISSUES
Print Issues
Digital Issues
SUBSCRIPTIONS
Print Subscriptions
Digital Subscriptions

Related content

  • Nmap Methods

    How does the popular Nmap scanner identify holes in network security? In this article, we examine some Nmap analysis techniques.

    more »
  • Nmap Scripting

    Nmap is rolling out a new scripting engine to automatically investigate vulnerabilities that turn up in a security scan. We’ll show you how to protect your network with Nmap and NSE.

    more »
  • Core Technologies – Network Scanning

    Network scanning may carry a negative connotation, but it doesn't mean you shouldn't look for weak spots in your network.

    more »
  • Nmap Workshop

    In "The Matrix Reloaded," Trinity uses Nmap to hack into the power grid to pave Neo's way to the architect of the virtual world. However, the port scanner is also ideal for more mundane purposes – such as discovering vulnerabilities in your domestic network.

    more »
  • Charly's Column

    Many tools keep growing with each new version, but Nmap 4.00 has lost weight thanks to the Diet-Nmap project. The latest incarnation of Nmap is not only quicker, it is also more frugal with memory.

    more »
comments powered by Disqus
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters

Digital Autonomy

• The Answer Was Already on the Shelf
• Changing the Chip Industry: How Public Investment Has Grown Open Silicon
• United Nations Open Source Portal Goes Live
• EU Open Source Strategy Plays Key Role in Tech Sovereignty Package
• France Says “Au Revoir” to Microsoft

Support Our Work

Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.

Learn More

News

Tag Cloud

Administration Community Desktop Events Hardware Linux Mobile Programming Security Software Ubuntu Web Development Windows free software open source