Network monitoring conventionally consists of tracking a networkís data traffic in order to determine choke points or to troubleshoot equipment or software problems. Nagios and MRTG are powerful, no-cost monitoring tools that run under Linux and can be used to monitor multi-vendor environments where UNIX and MS Windows coexist. Progent's IT support consultants can help you use both these tools to tune and repair your infrastructure.

Nagios Open Source Monitoring Application
Nagios screenThe Nagios monitoring system is a host/service monitor that operates with Linux or a UNIX variant. The Nagios daemon runs intermittent inspections of hosts and services you specify using external add-ons which return status information to Nagios. When issues are detected, the Nagios can generate alerts to administrative contacts in a variety of ways such as email, IM, or SMS. Up to date status information, archival records, and analysis reports can be accessed using a web browser.

Major features of Nagios are:

  • Tracking of network services such as POP3, HTTP, FTP, and PING
  • Monitoring of host resources: CPU load, disk and memory usage, running processes, etc.
  • Ability to define host ranking, allowing distinction between hosts that are not running as opposed to ones that are not accessible
  • Contact notifications via e-mail, pager, or other pre-defined means when service or host problems are detected or get fixed
  • Ability to define scripts to be executed during service or machine events for proactive problem resolution
  • Support for implementing backup and distributed network monitoring computers
  • External command option that enables ad hoc modifications to be made to the tracking and notification behavior through the utilization of event scripts, the web GUI, and independent applications
  • Preservation of host and service status after application restarts
  • Planned offline periods for suppressing machine and service notifications when there are intentional service breaks
  • Browser applet for examining current network status, notification and problem archive, log file, etc.
  • Permissions protocol that permits you to limit what users can see and modify from the browser interface

MRTG
MRTG consulting helpMRTG is an Open Source utility to track the bandwidth utilization on a network. Running under Windows or Linux and most UNIX platforms, MRTG captures data from the traffic counters of routers and creates web-accessible graphs which offer a live visual representation of this data.

Multi Router Traffic Grapher permits you to track the traffic through any SNMP network device. This can represent processors, routers, and switches. Administrators can utilize the resulting information to identify network bottlenecks.

Type of information you are able to depict with MRTG include:

  • Traffic in bits or bytes/sec
  • Connection rate in connections per second
  • Traffic through a specific Virtual server or node server
  • Total number of simultaneous sessions

Ask Progent for Network Monitoring Expertise
Progentís network monitoring consultants are experienced in using a number of network monitoring tools that can help you to troubleshoot or optimize your network infrastructure. For network monitoring expertise, call Progent at 800-993-9400 or go to Contact Progent.

Progent's Support for UNIX-based Networks
Progent's UNIX-family consulting experts offer small companies and product developers help with managing and supporting UNIX/Linux/Mac-based systems that may coexist with Microsoft-based technology. Progent offers your organization access to UNIX technical experts, authorized Microsoft engineers, Cisco-certified CCIEs, and security specialists certified by CISM. This wide array of expertise gives you a readily available single source to help your business to create and manage a safe and reliable multi-vendor connectivity and communications system that incorporates Microsoft Windows with leading derivatives of UNIX including: macOS and OS X , Sun Solaris, IBM AIX, HP-UX (Hewlett Packard UNIX), BSD, SCO and Silicon Graphics IRIX or important Linux distributions including RedHat, SUSE Linux, Debian GNU/Linux and CentOS Linux, Ubuntu, Mandriva, PCLlinuxOS, fedora, and Gentoo.