Network monitoring typically consists of observing a system's bandwidth usage to help determine areas of congestion or to troubleshoot hardware or software problems. Nagios and MRTG are useful, free monitoring utilities that operate under Linux and can be helpful to understand multi-platform networks where UNIX and MS Windows both operate. Progent's network support engineers can help you deploy both these products to optimize and repair your infrastructure.
Nagios Network Monitoring Application
The Nagios monitoring system is a host and service monitor that operates with Linux. The Nagios daemon runs periodic checks on hosts and services you specify by means of external add-ons which return status information to Nagios. When issues are detected, the Nagios can generate alerts to management contacts in a variety of ways such as email, instant messaging, or Short Message Service. Up to date status data, archival logs, and reports can be accessed via a web browser.
Key capabilities of the Nagios monitor are:
- Tracking of network services such as POP3, HTTP, SSH, and PING
- Monitoring of host machines: CPU load, memory/disk utilization, running processes, etc.
- Capability to specify host hierarchy, allowing distinction between machines that are down vs. hosts that are unreachable
- Contact notifications by email, pager, or other user-specified means in case service or machine issues occur or get fixed
- Ability to specify event handlers to be run upon the detection of service or host events for automated problem remediation
- Accommodation for implementing backup and dispersed monitoring servers
- Outboard command option that enables ad hoc modifications to be defined for the tracking and alerting activity via the utilization of event scripts, the web GUI, and independent software
- Retention of machine and service status after application restarts
- Planned offline periods for eliminating machine and service alerts when there are intentional outages
- Web applet for examining current network status, alert and problem history, event logs, etc.
- Authorization scheme that enables you to limit what customers can see and do via the web interface
Multi Router Traffic Grapher (MRTG)
MRTG Graphical Traffic Load Monitor is an Open Source utility to track the bandwidth utilization on your network. Powered by Windows or Linux and most UNIX platforms, MRTG reads the traffic counters of routers and produces web pages which offer an up-to-date intuitive representation of this data.
MRTG allows you to track the bandwidth through any SNMP network appliance. This can represent processors, routers, and switches. You can utilize the displayed information to determine network trouble spots.
Type of information you can graph 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 node/real server
- Number of concurrent sessions
Ask Progent about Network Monitoring Help
Progentís network monitoring specialists are experienced in operating a number of network monitoring tools that can assist you to troubleshoot or tune your connectivity infrastructure. To get network monitoring assistance, call Progent at 800-993-9400 or go to Contact Progent.
Progent's Consulting Services for UNIX-based Platforms
Progent's UNIX-family support experts provide small businesses and product developers assistance with managing and servicing UNIX/Linux/Mac-based networks that may operate alongside Microsoft-based technology. Progent offers your company the services of UNIX technical experts, authorized Microsoft engineers, Cisco-certified CCIEs, and security specialists certified by CISSP. This wide array of knowledge offers your company a convenient single source to assist your business to build and support a secure and robust multi-vendor connectivity and communications infrastructure that blends Microsoft technology with popular versions of UNIX such as:
macOS and OS X ,
Berkeley UNIX (BSD),
Silicon Graphics IRIX (SGI/IRIX) or important Linux distributions including
Debian GNU/Linux and
fedora Linux, and