Network monitoring conventionally entails observing a system's bandwidth usage in order to determine bottlenecks or to troubleshoot hardware or software problems. Nagios and MRTG are useful, free monitoring utilities that operate with Linux and can be used to understand mixed-vendor environments where UNIX family systems and Windows coexist. Progent's system support consultants can help you use both these utilities to tune and troubleshoot your infrastructure.
Nagios Open Source Monitoring System
The Nagios Open Source monitoring system is a host and service monitor that operates under Linux. The Nagios daemon executes intermittent checks on servers and services you request by means of outside add-ons which return status data to Nagios. When problems are detected, the daemon can generate alerts to management personnel in a number of ways such as e-mail, instant messaging, or Short Message Service. Up to date status data, historical records, and analysis reports can be accessed using a web browser.
Major capabilities of Nagios include:
- Monitoring of system services such as POP3, HTTP, SSH, and NNTP
- Monitoring of host machines: processor load, memory/disk utilization, running processes, etc.
- Ability to specify host ranking, permitting differentiation between machines that are down vs. hosts that are unreachable
- Contact notifications by email, beeper, or other user-specified means in case service or machine issues occur or get resolved
- Option to specify event handlers to be executed during service or host events for automated problem resolution
- Accommodation for deploying redundant and distributed monitoring servers
- External command option that enables on-the-fly edits to be defined for the monitoring and notification behavior through the use of event handlers, the web interface, and independent software
- Retention of host and service status after application restarts
- Planned downtime for suppressing host and service notifications during intentional service breaks
- Browser interface for viewing current network state, alert and anomaly archive, log file, etc.
- Authorization protocol that enables you to restrict what customers can see and do via the browser interface
Multi Router Traffic Grapher (MRTG) is an Open Source utility to monitor the bandwidth utilization on your network. Running under Windows or Linux and most UNIX platforms, MRTG reads the traffic counters of routers and generates web-accessible graphs which provide a live intuitive depiction of this traffic.
Multi Router Traffic Grapher lets you track the traffic in and out of any SNMP-enabled network device. This includes processors, routers, and switches. You can utilize the resulting information to determine system trouble spots.
Data you can depict using MRTG include:
- Throughput in bits or bytes/sec
- Connection rate in connections/sec
- Bandwidth through a particular Virtual server or node/real server
- Number of simultaneous sessions
Ask Progent for Network Monitoring Consulting
Progentís network monitoring specialists are experienced in using a number of utilities that can assist you to troubleshoot or optimize your connectivity infrastructure. To get network monitoring consulting, phone Progent at 800-993-9400 or go to Contact Progent.
Progent's Support for UNIX-family Systems
Progent's UNIX consulting experts offer small companies and developers assistance with managing and maintaining UNIX/Linux/Mac-based networks that may operate alongside Microsoft technology. Progent provides your organization contact with UNIX support professionals, certified Microsoft engineers, Cisco CCIEs, and security experts certified by CISM. This wide array of expertise offers you a readily available single source to assist your business to build and manage a protected and reliable cross-platform network and communications solution that combines Microsoft Windows with popular variants of UNIX including:
macOS and OS X ,
IBM AIX OS,
Berkeley UNIX (BSD),
Silicon Graphics IRIX or important Linux distributions including
fedora Linux, and