Articles
Landscape
Manually maintaining large IT infrastructures almost inevitably leads to errors. Enter Canonical's Landscape, a commercial tool that uses a web interface and an API to gather information, render it graphically, and complete maintenance work.
New versions of the Endian and Sophos UTM solutions
UTM systems combat all kinds of dangers under the policy of Unified Threat Management. The demands and expectations of customers fuel competition. Two of the most popular manufacturers – Endian and Sophos – have now released new versions of their solutions.
Documentation Tools for Admins
Scattered documents lying on the file server are an inconvenient resource when admins need to solve problems at the help desk. Free knowledgebase components combine knowledge and structure, providing a better overview.
IPv6 Tables
We design a basic set of ip6tables rules for an IPv6 firewall.
Acquiring a Memory Image
Be ready before disaster strikes. In this article we describe some tools you should have on hand to obtain a memory image of an infected system.
Container Virtualization Comeback with Docker
Docker helps the Linux container achieve an appealing comeback and integrates some features missing from earlier container solutions.
OpenLDAP Workshop
Centralized user management with LDAP or Active Directory is the standard today, although many prefer to manage user data manually rather than build this kind of infrastructure. In this article, we look at a better approach with OpenLDAP.
Managing Linux Memory
Even Linux systems with large amounts of main memory are not protected against bottlenecks and potentially drastic performance degradation because of memory shortage. In this article, we investigate the complex causes and test potential solutions.
Monitoring with collectd 4.3
Collectd 4.3 is a comprehensive monitoring tool with a removable plugin architecture.
Secure Your KVM Virtual Machines
A common misconception posits that software cannot cause mischief if you lock the system away in a virtual machine, because even if an intruder compromises the web server on the virtual machine, it will only damage the guest. If you believe this, you are in for a heap of hurt.
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