Network monitoring typically consists of tracking a networkís bandwidth usage in order to determine choke points or to analyze equipment or application problems. Nagios and MRTG are useful, Open Source monitoring tools that run with Linux and can be used to understand multi-platform environments where UNIX and Microsoft Windows both operate. Progent's network support experts can help you deploy both these utilities to tune and repair your network.

Nagios Monitoring System
Nagios screenThe Nagios Open Source monitoring system is a host and service monitor that runs with Linux or a UNIX variant. The monitoring daemon executes periodic checks on hosts and services you specify using external plug-ins which return status data to Nagios. When issues are detected, the Nagios can generate alerts to support personnel in a variety of ways such as e-mail, IM, or Short Message Service. Current status data, historical logs, and reports can be examined via a web browser.

Major capabilities of Nagios are:

  • Monitoring of system services such as POP3, HTTP, SSH, and NNTP
  • Monitoring of host machines: processor load, memory/disk usage, log files, etc.
  • Capability to specify host ranking, allowing distinction between machines that are not running vs. hosts that are unreachable
  • Contact notifications by email, beeper, or other pre-specified means when service or host issues occur or get fixed
  • Option to define event handlers to be executed during service or machine events for proactive problem remediation
  • Support for deploying redundant and dispersed network monitoring computers
  • Outboard command option that enables ad hoc modifications to be made to the monitoring and alerting behavior through the use of event scripts, the web GUI, and third-party software
  • Retention of host and service status after program restarts
  • Scheduled offline periods for eliminating host and service alerts during intentional service breaks
  • Browser interface for examining current system status, alert and anomaly history, log file, etc.
  • Permissions scheme that allows you to limit what customers can see and do from the web interface

MRTG consulting servicesMRTG is an Open Source tool to monitor the bandwidth utilization on your network. Running under Windows or Linux and most UNIX platforms, MRTG reads the traffic counters of network routers and creates web pages which provide a live intuitive depiction of this traffic.

Multi Router Traffic Grapher permits you to track the traffic in and out of any SNMP-enabled network device. This includes processors, routers, and switches. Administrators can use the resulting data to determine network bottlenecks.

Data you are able to depict using MRTG include:

  • Throughput in and out in bits or bytes/sec
  • Connection rate in connections/sec
  • Traffic in an out of a particular VIP server or node/real server
  • Total number of simultaneous sessions

Ask Progent for Network Monitoring Consulting
Progentís network monitoring consultants are experienced in using a variety of utilities that can assist you to repair or tune your connectivity infrastructure. For network monitoring help, phone Progent at 800-993-9400 or go to Contact Progent.

Progent's Help for UNIX Platforms
Progent's UNIX support experts provide small companies and product developers help with administering and supporting UNIX/Linux/Mac-based systems that can coexist with Microsoft technology. Progent offers your organization the services of UNIX support experts, certified Microsoft consultants, Cisco CCIEs, and security specialists certified by CISM. This wide range of knowledge offers your company a readily available single resource to help your business to create and maintain a secure and robust cross-platform network and communications solution that incorporates Microsoft Windows with popular versions of UNIX such as: Apple macOS and OS X , Solaris, IBM AIX Operating System, HP-UX (Hewlett Packard UNIX), BSD, SCO and Silicon Graphics IRIX (SGI/IRIX) or major Linux distributions including RedHat Linux, SUSE, Debian-GNU and CentOS Linux, Ubuntu, Mandriva, PCLOS, fedora Linux, and Gentoo.

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