Network monitoring typically consists of observing a network’s bandwidth usage in order to identify areas of congestion or to analyze equipment or application problems. Nagios and MRTG are useful, free monitoring utilities that run with Linux and can be helpful to understand multi-vendor environments where UNIX and Windows both operate. Progent's network integration consultants can help you deploy both these products to tune and troubleshoot your infrastructure.
Nagios Network Monitoring System
The Nagios monitoring system is a host and service monitor that runs with Linux. The monitoring daemon executes periodic inspections of servers and services you specify using outside add-ons which return status information to Nagios. When problems are detected, the daemon can generate alerts to administrative personnel in a number of ways such as email, instant messaging, or SMS. Up to date status information, archival records, and analysis reports can be examined using a standard web browser.
Major capabilities of the Nagios monitor include:
- Tracking of network services such as POP3, HTTP, FTP, and PING
- Monitoring of host resources: processor load, disk and memory utilization, log files, etc.
- Ability to define host ranking, permitting differentiation between machines that are not running vs. hosts that are unreachable
- Contact alerts via e-mail, pager, or other user-defined means in case service or host problems occur or get resolved
- Option to specify event handlers to be run during service or host events for proactive problem remediation
- Accommodation for implementing redundant and distributed network monitoring computers
- Outboard command option that enables on-the-fly edits to be defined for the tracking and alerting behavior via the utilization of event scripts, the web GUI, and third-party applications
- Preservation of host and service state after program restarts
- Scheduled downtime for suppressing machine and service alerts when there are deliberate service breaks
- Browser applet for viewing existing system status, notification and anomaly archive, log file, etc.
- Authorization protocol that allows you to limit what customers can see and modify via the web applet
MRTG Graphical Traffic Load Monitor
MRTG 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 offer a live intuitive representation of this data.
MRTG allows you to graph the bandwidth in and out of any SNMP network appliance. This includes processors, routers, and switches. You can utilize the resulting data to identify network trouble spots.
Data you are able to depict using MRTG include:
- Throughput in and out in bits or bytes per second
- Connection rate in connections per second
- Throughput in an out of a particular VIP/virtual server or real server
- Number of concurrent sessions
Contact Progent about Network Monitoring Consulting
Progent’s network monitoring specialists are experienced in operating a number of utilities that can assist you to troubleshoot or optimize your network infrastructure. For network monitoring consulting, call Progent at 800-993-9400 or visit Contact Progent.
Progent's Microsoft, Cisco, and Applications Consulting Expertise
Progent's Microsoft and Cisco certified consultants offer clients in San Francisco, San Jose, and in cities throughout the U.S a wide array of expertise covering the basic IT requirements common to typical small and mid-size business networks. Progent's core consulting areas include network integration, Microsoft Exchange consulting, system security support and HelpDesk consulting and staffing. Progent's Application Experts Group offers deep knowledge of specific application areas. By offering a single resource for information technology generalists and experts, Progent is able to tailor fast, cost-effective and complete IT solutions that align with the unique needs of your organization.