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30.11.2025
2012. The new laptops in the IdeaPad U Series, Y Series, S Series, and Z Series provide a range of styles, colors, and performance.
The U series features IdeaPad U310 and U410, two "ultra" laptops
55%
30.11.2025
mandatory. If a major service provider were to install a bare metal system on every machine it bought, this wouldn't initially contradict the idea of accessing virtual services as the need arises over ... The OpenNebula toolkit can provide powerful management and provisioning capabilities for virtualized data center operation.
55%
30.11.2025
that does not demand extensive knowledge of the internal design.
For some appliances, you will have to provide a complete stack – all the way from the kernel to the userland applications. Other times, you ... Software appliances provide a convenient means for packaging, transporting, and deploying software without the need for complex, repetitive configuration steps.
55%
30.11.2025
this kind of hardware monitoring. But much hardware information can also be retrieved using SNMP. An SNMP monitor called OpenNMS relies on users to provide vendor-independent hardware monitoring. Popular ... The OpenNMS monitoring tool is a kind of all-purpose weapon that can provide administrators with a versatile range of information.
55%
30.11.2025
A couple of years ago, I was teaching Linux at a large-scale IT service provider's office. Their administrators had plenty of experience with commercial Unix variants, such as HP-UX, and they asked ... The new cgroups feature provides an administrative approach to restricting resource use. This application is particularly interesting for virtualized systems.
55%
30.11.2025
Routine updates to a Linux distribution can cause trouble; we provide some practical tips to help you recover.
50%
30.11.2025
Over the past few years, companies have changed the way they look at IT. Companies now view IT as a service provided from one department to another, or perhaps provided to customers. This has led ... Providing the necessary IT services to your employees or customers is more than simply logging tickets and keeping track of hardware. We compare several ITIL-compliant help desk packages.
50%
30.11.2025
Java EE provides a development platform based on various software components and services that has become pretty much the standard for developing enterprise applications. Clearly defined APIs allow ... Web-based, enterprise-capable applications often rely on the vendor-independent Java Platform, Enterprise Edition. We provide an introduction to Java EE based on the JBoss application server.
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30.11.2025
a shell script evaluates immediately after launching the sensor.
Various programs are suitable for automated, "unmanned" access to the service provided by a given daemon; all of them will run in the shell ... Administrators often write custom monitoring programs to make sure their daemons are providing the intended functionality. But simple shell tools are just as well suited to this task, and not just
50%
30.11.2025
To save users the trouble of configuring a STUN server and then discovering that it doesn't work, SIP providers have extended their proxies to support what is known as Symmetric Response Routing. The IP ... Conventional VoIP telephony doesn't provide for the complications of a firewall. The STUN protocol is the standard fix, but sometimes STUN just isn't enough.
