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Time spent on complex troubleshooting is usually sorely needed elsewhere. Therefore, tools that allow more efficient troubleshooting are always welcome. Network testers promise this efficiency ... Network errors frequently affect many clients and are correspondingly urgent. With the right tools, such as specialized network testers, troubleshooting is much easier. ... Network Testers ... Tools for troubleshooting the network

When Graham Keeling became annoyed with the complexity of network backup software program Bacula [1], he fired up his program editor. The result was the compact network backup solution Burp [2 ... Network Backup ... Network backup with Burp, Obnam, and Backshift

A virtual private network (VPN) can typically be described as a solution that allows an encrypted secure connection, often referred to as a tunnel, to be established to a private network. Many ... Open Source, network, secure, multifactor authentication

features of popular solutions such as Acronis Backup & Recovery, Arkeia Network Backup, EMC NetWorker, IBM Tivoli Storage Manager, SEP sesam, Symantec NetBackup, and the open source Bacula. Elsewhere up ... Life on the Network

The permanent availability of servers and the services they provide presents a challenge for any administrator. For this reason, network monitoring and the tools used to perform it play an important ... We look at two tools for Windows network monitoring – PRTG Network Monitor and NetCrunch – that allow you to monitor servers at work or on the road. ... Network monitoring for Windows

, intelligent network platform. The benefits offered by this kind of integration are huge: Besides significant efficiency boosts attributable to the automation of building services, the technology also improves ... The Purdue Model maps the challenges of networking industrial systems to five levels, helping to target and mitigate risk and address vulnerabilities. We look at the Purdue Model in detail ... Purdue Model for industrial networking

Linux comes with a whole bunch of useful network analysis tools, many of which provide excellent results that can easily compete with commercial tools. Despite this, Windows administrators ... An administrator can only gain useful insights from network analysis if they understand the underlying procedures and protocols. The new version of Wireshark, 1.6, formerly known as Ethereal, can ... Network analysis with Wireshark

of how a well-tended network should operate. This issue starts with a story on the state of migration to the IPv6 Internet protocol, including a look at some services that will let you try out IPv6 right ... The Present and Future Network

, and storage components, into consideration. In many cases, administrators forget that a network failure will make the virtual servers inaccessible. A switch should never be a single point of failure (Figure 1 ... Virtualization doesn't necessarily provide protection against system failure if the network is a single point of failure. We explain how to set up redundant network connections for virtual machines ... Redundant network connections with VMware ESX

Permanent monitoring of IT infrastructures is a routine task for every network admin. Depending on the scope and complexity of existing installations, several tools are used for this purpose ... Web-based network monitoring