Network monitoring typically consists of tracking a system's data traffic to help identify areas of congestion or to troubleshoot equipment or application problems. Nagios and MRTG are powerful, free monitoring utilities that run with Linux and can be used to monitor multi-platform networks where UNIX family systems and Windows both operate. Progent's system support engineers can help you deploy each of these tools to optimize and troubleshoot your network.

Nagios Monitoring Application
Nagios screenThe Nagios monitoring application is a host/service monitor that operates with Linux or a UNIX variant. The Nagios daemon runs periodic checks on servers and services you specify using outside add-ons which return status information to Nagios. When problems are encountered, the daemon can send alerts to administrative personnel in a variety of ways such as email, instant messaging, or Short Message Service. Current status data, historical records, and analysis reports can be accessed via a standard web browser.

Major capabilities of Nagios include:

  • Monitoring of network services such as POP3, HTTP, FTP, and PING
  • Tracking of host resources: processor load, disk and memory usage, running processes, etc.
  • Ability to specify network host hierarchy, allowing differentiation between hosts that are down as opposed to ones that are not accessible
  • Support personnel notifications via email, pager, or other user-specified method in case service or machine problems occur or are fixed
  • Ability to specify scripts to be run during service or host events for automated problem resolution
  • Support for implementing backup and distributed monitoring servers
  • External command option that allows ad hoc modifications to be made to the tracking and notification activity via the utilization of event handlers, the web GUI, and third-party applications
  • Preservation of host and service state after program restarts
  • Planned downtime for suppressing machine and service alerts when there are deliberate service breaks
  • Web applet for examining existing network status, notification and problem history, log file, etc.
  • Authorization scheme that allows you to restrict what customers can view and do via the web applet

MRTG
MRTG consulting servicesMulti Router Traffic Grapher (MRTG) is an Open Source utility to track the traffic load on a network. Powered by Microsoft Windows or Linux, MRTG captures data from the traffic counters of routers and creates web-accessible graphs which offer an up-to-date visual representation of this data.

MRTG allows you to track the traffic in and out of any SNMP-enabled network device. This can represent processors, routers, and switches. Administrators can use the displayed data to identify system bottlenecks.

Data you can graph using MRTG include:

  • Bandwidth in bits or bytes/sec
  • Connection rate in connections/sec
  • Traffic in an out of a specific Virtual server or node server
  • Total number of concurrent sessions

Contact Progent about Network Monitoring Consulting
Progent’s network monitoring consultants are experienced in operating a number of utilities that can help you to troubleshoot or tune your network infrastructure. For network monitoring expertise, phone Progent at 800-993-9400 or visit Contact Progent.

Progent's Microsoft, Cisco, and Applications Consulting Expertise
Progent's Microsoft and Cisco certified professionals provide clients in San Francisco, Northern California, and in cities nationwide a wide array of expertise concerning the fundamental IT needs common to typical small and mid-size business networks. Progent's core services include system integration, MS Exchange help, network security consulting and Help Desk consulting and staffing. Progent's Application Experts Team offers deep knowledge of key application topics. By providing a one-stop source for IT generalists and experts, Progent is able to deliver speedy, cost-effective and thorough IT solutions that address the particular needs of your organization.
















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