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10 Free Server & Network Monitoring Tools that Kick Ass

10 Free Server & Network Monitoring Tools that Kick Ass
By Ben Dowling When you have a website or a network, it’s helpful to be aware of any issues as soon as they occur. There are open source and freeware server/network monitoring tools that will supervise your infrastructure for any issues that may arise. These tools are meant to aid you in avoiding being taken offline and evaluating if your resource needs has outgrown your infrastructure. In this article, we review our top 10 server/network monitoring tools. 1. Monit not only monitors your server, but also attempts to remedy problems by taking predefined actions for certain situations. If you have more than one server that you need to monitor, then you can use M/Monit– an extended version of Monit that provides a simple way to monitor multiple machines. There’s also an iPhone app available for M/Monit to help you conveniently check on your network without lugging around a laptop around. 2. When you have a cluster of machines, it’s difficult to see how the whole cluster is doing all at once.

Vendor Landscape for Application-Aware Network Performance Monitoring and Network Packet Brokers Vendor Landscape for Application-Aware NPM and NPB Solutions Expands The vendor landscape for application-aware NPM and NPB solutions continues to expand, with acquisitions, consolidation and innovation in the monitoring space. These market movements prompt a closer look at the solutions, especially given the ever-increasing upgrade cycles of network bandwidth. These technologies allow visibility and monitoring of network-centric applications, end-user experience and network-based application tracing, and an understanding of the infrastructure components used to deliver an application. Networks have always been perceived as a focal point of blame for application performance issues. What once was simple packet capture and analysis has evolved into a much more sophisticated set of IT products that encompasses traffic management, network monitoring and unprecedented user-experience visibility from a nonintrusive network perspective. Application-aware NPM NPB Application-Aware NPM AppNeta

Syncless Follow some of us on Twitter: @Syncless @Wysie_Soh @kelltainer @ZwodahS Update May 22, 2010: For those who have tested the network drive, please post in the discussion group and let us know =). Syncless 2.1 is up. added Minimize On startup options. Network Drive For those having problem regarding network drive, try mapping the network drive to a drive letter and set the respective permission. "Syncless is a work of beauty combined with superb functionality. "You won't find a shortage of file syncing applications, but Syncless is the first we've reviewed that supports tag-based synchronization. "Overall we liked the concept of tags for file sync and Syncless proved to be a really useful application." - Life Rocks 2.0 Syncless comes under international spotlight - Why Tagging? Why Syncless? What makes Syncless so unique is the way synchronization is performed. The concept of tagging has been applied by notable applications in various interesting ways. Why Another Sync Tool?

10 Cool Ways to Use Nmap Nmap (“Network Mapper”) is a free and open source (license) utility for network exploration or security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. In addition to my list you can also check out this Comprehensive Guide to Nmap here and of course the man pages Here are some really cool scanning techniques using Nmap 1) Get info about remote host ports and OS detection nmap -sS -P0 -sV -O <target> Where < target > may be a single IP, a hostname or a subnet -sS TCP SYN scanning (also known as half-open, or stealth scanning) -P0 option allows you to switch off ICMP pings. -sV option enables version detection -O flag attempt to identify the remote operating system Other option: -A option enables both OS fingerprinting and version detection -v use -v twice for more verbosity. nmap -sS -P0 -A -v < target > 2) Get list of servers with a specific port open

Routers and Wireless The Dude The Dude network monitor is an application by MikroTik which can dramatically improve the way you manage your network environment. It will automatically scan all devices within specified subnets, draw and layout a map of your networks, monitor services of your devices and alert you in case some service has problems. The Dude GUI needs to connect to the Dude server, that can run on x86 or CCR RouterOS devices Some of it's features The Dude is free of charge! Help Recommended "The Dude" Consultants You can hire our best Dude experts to configure your Dude monitoring system, or to assist you with any task and objective. Notify me!

Beginner's Guide to Nmap Ever wondered how attackers know what ports are open on a system? Or how to find out what services a computer is running without just asking the site admin? You can do all this and more with a handy little tool called Nmap. What is Nmap? It's famous, too. In this tutorial, I'll cover some of the basics of using Nmap and provide some examples you can use quickly. Getting Nmap and Basic Use You'll find Nmap packaged for most major Linux distros. The basic syntax for Nmap is Nmap Scan Type Options target. nmap -O Note that Nmap requires root privileges to run this type of scan. Starting Nmap 5.21 ( ) at 2010-02-27 23:52 EST Nmap scan report for Host is up (0.0015s latency). As you can see, Nmap provides a lot of data. Here's the result of another scan, against a desktop machine running Ubuntu 9.10: Starting Nmap 5.21 ( ) at 2010-02-28 00:00 EST Nmap scan report for Host is up (0.0039s latency). Practice Hosts Multiple Hosts Zenmap

Руководство ответственного за устранение инцидентов в Win2k Корректные действия по устранению последствий инцидентов в компьютерной безопасности стоят на втором месте по важности, уступая лишь превентивным мерам по предотвращению этих инцидентов. Неправильная обработка, или сбор имеющейся информации может нанести непоправимый вред исследованию. Исследователи должны хорошо знать, какую информацию они намерены собирать, а также какие инструменты они могут использовать, и какое влияние окажут эти инструменты на саму систему. Михаил Разумов , по материалам SecurityFocus Вступление Исследователи знают, что не каждое событие требует полного исследования. В этой статье используются термины «исследователь» и «ответственный за устранение инцидента». Шаг 1: Защита «временной информации» («Volatile Information») Когда говорят о «компьютерной экспертизе» («computer forensics»), на ум приходят картины выключения (shut down) компьютера и побитное копирование жесткого диска. Разработка инструментальных средств netstat -an netstat -r arp -a Заключение

Nmap Compare Application-Aware Network Performance Management (NPM) Products - ExtraHop Networks The ExtraHop platform offers considerable advantages compared to traditional network performance management (NPM) products, including Visual Network Systems (formerly under Fluke Networks), AppResponse Xpert (formerly ACE Live), CA NetQoS (now part of the CA Service Assurance suite), Riverbed Cascade (formerly Mazu), NetScout nGenius Service Assurance, and Network Instruments Observer and GigaStor. ** Some network metrics are sampled. ‡ Requires configuration. Limited to 5,000 concurrent flows. Network performance management (NPM) is the IT management discipline responsible for ensuring the reliable and speedy delivery of application traffic between network nodes and to end users. Traditional NPM tools include Visual Network Systems (formerly under Fluke Networks), AppResponse Xpert (formerly ACE Live), CA NetQoS (now part of the CA Service Assurance suite), Riverbed Cascade (formerly Mazu), NetScout nGenius Service Assurance, and Network Instruments Observer and GigaStor.

Application Aware Network Performance Monitoring (NPM) and Network Packet Broker (NPB) research Jonah Kowall Research Vice President 2 years with Gartner 18 years IT industry Jonah Kowall is a research Vice President in Gartner's IT Operations Research group. He focuses on application performance monitoring (APM), event correlation and analysis (ECA), network management systems (NMS), network performance management (NPM), network configuration and change management (NCCM), and general system and infrastructure monitoring technologies. Coverage Areas: by Jonah Kowall | April 21, 2012 | 20 Comments Vendor Landscape for Application-Aware Network Performance Monitoring and Network Packet Brokers - Deb Curtis and I have recently published a note which is something which I started several months ago to highlight some of the innovative solutions and players in the Network Performance Monitoring (NPM) market which fit a specific set of criteria. Application-Aware NPM Optionally, the features of market leaders include: