Network monitoring conventionally entails observing a network’s data traffic in order to determine bottlenecks or to analyze equipment or application issues. Nagios and MRTG are useful, free monitoring utilities that run under Linux and can be used to understand multi-platform environments where UNIX family systems and Microsoft Windows both operate. Progent's system integration experts can help you deploy each of these utilities to optimize and repair your network.
Nagios Open Source Monitoring Application
The Nagios monitoring system is a host/service monitor that operates with Linux. The Nagios daemon executes intermittent checks on servers and services you request using outside add-ons which return status data to Nagios. When problems are encountered, the daemon can generate alerts to administrative contacts in a number of ways such as email, instant messaging, or Short Message Service. Current status data, historical logs, and analysis reports can be examined via the web.
Major features of the Nagios monitor include:
- Tracking of system services such as POP3, HTTP, SSH, and PING
- Tracking of host resources: processor load, disk and memory usage, log files, etc.
- Capability to define network host ranking, permitting distinction between hosts that are down vs. ones that are unreachable
- Contact notifications via email, beeper, or other user-defined method in case service or machine issues occur or get resolved
- Option to define event handlers to be run during service or machine events for proactive problem resolution
- Support for deploying backup and distributed monitoring servers
- External command interface that allows on-the-fly edits to be made to the monitoring and alerting activity via the use of event handlers, the web GUI, and independent software
- Preservation of host and service status after program restarts
- Scheduled downtime for suppressing machine and service notifications during intentional service breaks
- Browser interface for viewing existing system state, notification and anomaly archive, log file, etc.
- Permissions protocol that allows you to limit what customers can view and modify from the browser applet
Multi Router Traffic Grapher (MRTG)
MRTG Graphical Traffic Load Monitor is an Open Source tool to monitor the bandwidth utilization on a network. Powered by Microsoft Windows or Linux and most UNIX platforms, MRTG reads the traffic counters of routers and produces web pages which provide a live intuitive representation of this data.
MRTG lets you track the bandwidth in and out of any SNMP-enabled network device. This can represent processors, routers, and switches. Administrators can utilize the resulting information to determine system bottlenecks.
Data you can graph with MRTG include:
- Throughput in bits or bytes/sec
- Connection rate in connections per second
- Throughput through a specific VIP/virtual server or node server
- Total number of concurrent sessions
Contact Progent for Network Monitoring Help
Progent’s network monitoring specialists are experienced in using a number of tools that can assist you to troubleshoot or tune your connectivity infrastructure. For network monitoring assistance, phone Progent at 800-993-9400 or go to Contact Progent.
Progent's Consulting Services for UNIX-based Environments
Progent's UNIX consulting experts offer small businesses and developers help with administering and servicing UNIX/Linux/Mac-based systems that may coexist with Microsoft-based environments. Progent offers your organization the services of UNIX technical experts, authorized Microsoft consultants, Cisco CCIEs, and security specialists accredited by CISM. This wide array of expertise gives you a readily available single source to help you to build and maintain a secure and robust cross-platform connectivity and communications system that combines Microsoft Windows with popular derivatives of UNIX including:
Apple macOS and OS X ,
IBM AIX Open UNIX,
HP-UX (Hewlett Packard UNIX),
Berkeley UNIX (BSD),
SCO UNIX and
Silicon Graphics IRIX (SGI/IRIX) or major Linux distributions such as