Universal accessibility was the commonly mentioned concern for the study participants. They wanted to have the management system accessible with any computing devices in the home network (from any laptop for instance). Such desire for universal accessibility implies that many PC-based tools, which are installed and running on individual PCs, may not be the best option for several reasons. First, the PC-based tools can not provide users with universal access. To access those tools, users need to go to the devices in which the tools are installed. Second, the PC-based tools cannot get a full picture of the network without extra coordination overhead. To get a full picture of the network, the PC-based tools need to collect necessary information about devices other than the device that runs the tool from either the router or other devices. With regard to a holistic environment that can support a variety of networkmanagement tasks (versus requiring separate tools per task) most users barring some expert users absolutely preferred a holistic environment. The reasons for such a preference were the following: 1) A holistic system simplifies management tasks by using one program in one place; 2) It provides a consistent look and interface, thus requiring less time for users to learn than those of multiple managementtools with different looks and interfaces; 3) It allows users to recognize all available network settings and options at a glance and thus gets rid of chances to miss some management tasks. One expert user preferred a separate, specific tool.
Easy III takes full advantage of the latest technology in data transmission, networking and remote access. Multiple Easy III users can view the same record during data collection or review over the network. Digital IP cameras allow the user to control the camera from anywhere on the network. Patient data and video can also be reviewed from the physician’s office, home or other remote location using a secure VPN.
warehouse, and end as a standard report. This bottom-up approach does not work effectively during the design or maintenance of a scorecard project. Corporater was built for business users, where the project can begin with the formation of strategic objectives, indicators, and strategy maps rather than focusing much attention on the underlying database complexities. Our slogan is “Business in Control”- we shatter the myth that a Performance Management project needs to begin with the data. We enable people to begin with their business content.
Although it represents only a small fraction of the cost, compared to civil works or rolling stock, the communication network plays an ever increasing role in the operation of mass transit and railway systems. Metro, Monorail and Light Rail infrastructures have speciﬁ c networking requirements for which OTN Systems has developed dedicated networking solutions that fully support these demanding applications with the level of reliability and security they require.
Snort fills  an important “ecological niche'' in the the realm of network security: a cross-platform, lightweight network intrusion detection tool that can be deployed to monitor small TCP/IP networks and detect a wide variety of suspicious network traffic as well as outright attacks. Snort is a tool for small, lightly utilized networks. Snort is useful when it is not cost efficient to deploy commercial NIDS sensors. Modern commercial intrusion detection systems cost thousands of dollars at minimum, tens or even hundreds of thousands in extreme cases. Snort is available under the GNU General Public License [GNU89], and is free for use in any environment, making the employment of Snort as a network security system more of a networkmanagement and coordination issue than one of affordability.
The quest to investigate and eradicate vulnerability in networks is becoming the paramount concern for most security expert and network administrator. Thus, finding and closing the security holes in the network is the only way to protect organization's network from any possible attack notwithstanding the organizations well-managed firewall, an updated antivirus, and intrusion detection system . Of most essence is bearing in mind that profit making is not always the intension of an attacker but, in most cases can be born as a result of an unhappy client, unsatisfied employee, or even a disgruntled contractor all for the sake of self-satisfaction and revenge.
This can be once more a part a pair of method i.e. scanning that may be a combination of Probe and attack and listening. being attentive to network traffic or to application knowledge will typically facilitate to attack a system or to advance deeper into a company network. Listening is very powerful as shortly mutually has management of a very important communication bottleneck. Sniffers square measure heavily used throughout the listening part. Multiple sniffers, from terribly straightforward to a lot of complexes, from console based mostly to interface driven exist for all operative systems. Some sniffers, like ettercap will even poison Arp tables to modify sniffing in switched environments and open whole new opportunities for being attentive to network traffic .
Simulation offers significant advantages as a basis for academic projects in computer networking. Because many unimportant details can be abstracted away, and also because simulations can be completely repeatable, it is possible to address the same concepts more quickly than is possible with actual networks. An important complement to classroom lectures is laboratory experiments. In networking, this often implies programming, protocol design, experiments and measurement. Simulation has an important role here since it allows students to examine problems with much less work and of much larger scope than are possible with experiments on real hardware. Therefore students will come to understand networking theory much better than if they learn only from reading and lectures. This paper shows that using stimulation tools in teaching computer network has provided students with the opportunity to freely experiment with virtual computer networks.
Cacti monitoring tool is an open source software and is useful to minimize downtime and collect relevant information about the network like log files. The multi technology adopted by cacti like PHP, MySQL, SNMP and RDDT have produced good interactive interface. Thus it is convenient to managers and also provides automatic display mechanisms for viewing graphs with web interface. Comparing with other monitoring tools Cacti is more robust and has more powerful functions . The capabilities of Cacti can also be extended for collecting the data by using scripts, queries, or commands and then the data gets saved as templates. These templates are used so that other devices consist similar set of data can also use the feature of SNMP polling. Cacti consists RRD tool, a very strong and powerful open-source data logging and graphing system. Time-sharing data of metrics such as CPU load and network bandwidth utilization is being graphed by it. It is designed as front-end application as it is used to display bandwidth statics by web hosting providers for their customers . It has some disadvantages like configuration of Interfaces is Tedious and configuration of Plug-in Architecture is non-trivial.
Both Network graphs and Co-link analyses allow adding properties to the nodes in order to observe relationships between the network configuration and other qualitative or quantitative variables. For example, the size of the nodes may represent the number of web pages, colour and shape any classification scheme such as country, type or discipline. These added variables permits to observe rela- tionships between the centrality of a university and the number of web pages, or the colours make possible to identify national sub- networks in the World-class universities (Figure 3).
Server and network monitoring tools are essential for today’s data centers. They help data center managers increase uptime, anticipate problems in system and application performance, troubleshoot outages, and track capacity needs. And the best products provide comprehensive data on nearly everything in the data center, including network equipment, web servers, file servers, hypervisors, storage devices, databases, and applications.
Intrusion is a set of actions aimed to compromise the security of computer and network components in terms of confidentiality, integrity and availability . This can be done by an inside or outside agent to gain unauthorized entry and control of the security mechanism. To protect infrastructure of network systems, intrusion detection systems (IDSs) pro-vide well-established mechanisms, which gather and analyze information from various areas within a host or a network to identify possible security breaches.
The software release you are using (under Help, About DL Tools for Windows). The type of hardware/network you are using (including total RAM, version of Microsoft Windows, other running applications, LAN type if applicable, and available disk space). The exact wording of any error messages you received, as they displayed on your screen. A detailed description of the utility or function you were running when the error occurred, and the steps you took to get to that utility or function.
Dynamic changes of the available network capacity also require the capability of applications to adjust their behavior accordingly . Regarding transport and quality control of real-time multi-media traffic, the Real Time Pro- tocol (RTP) and Real Time Control Protocol (RTCP)  are often used. The latter allow an application to analyze the transmission quality to a certain extent. However, these protocols do not provide resource reservation mechanisms and respond mainly to changes of the network conditions. A direct coupling of network entities and the application layer is necessary to adjust data traffic in a pro-active man- ner. For this reason an appropriate integrated mobile QoS management and resource reservation system is required.