Network monitoring conventionally consists of tracking a system's bandwidth usage in order to determine choke points or to troubleshoot hardware or software problems. Nagios and MRTG are powerful, Open Source monitoring utilities that operate under Linux and can be helpful to monitor multi-vendor networks where UNIX and MS Windows coexist. Progent's network support experts can show you how to use each of these utilities to tune and troubleshoot your network.
Nagios Network Monitoring Application
The Nagios Open Source monitoring system is a host/service monitor that operates under Linux or a UNIX variant. The monitoring daemon executes intermittent inspections of servers and services you request by means of external add-ons which return status information to Nagios. When issues are encountered, the Nagios can send notifications to administrative contacts in a variety of ways such as e-mail, instant messaging, or SMS. Up to date status data, historical records, and reports can be accessed using a standard web browser.
Key features of the Nagios monitor include:
- Tracking of network services such as SMTP, HTTP, SSH, and NNTP
- Tracking of host resources: processor load, memory/disk utilization, log files, etc.
- Ability to specify host ranking, allowing differentiation between machines that are not running vs. hosts that are unreachable
- Contact alerts via email, beeper, or other user-specified means when service or host problems are detected or are resolved
- Option to specify event handlers to be executed during service or host events for proactive problem resolution
- Accommodation for deploying redundant and dispersed monitoring computers
- Outboard command option that allows ad hoc modifications to be defined for the monitoring and alerting behavior through the utilization of event scripts, the web GUI, and third-party applications
- Retention of machine and service state after program restarts
- Scheduled offline periods for eliminating machine and service notifications during intentional outages
- Web interface for examining current network state, notification and anomaly history, log file, etc.
- Permissions protocol that enables you to restrict what customers can see and modify via the web interface
MRTG is a free tool to monitor the traffic load on your network. Powered by Microsoft Windows or Linux, MRTG reads the traffic counters of routers and creates web pages which offer a live intuitive representation of this traffic.
Multi Router Traffic Grapher allows you to track the bandwidth in and out of any SNMP network device. This can represent servers, routers, and switches. Administrators can utilize the displayed information to identify system trouble spots.
Data you can depict using MRTG include:
- Throughput in and out in bits or bytes/sec
- Connection rate in connections/sec
- Throughput in an out of a particular VIP server or node server
- Total number of concurrent sessions
Contact Progent for Network Monitoring Consulting
Progentís network monitoring consultants are skilled in using a variety of tools that can help you to repair or tune your connectivity infrastructure. For network monitoring consulting, phone Progent at 800-993-9400 or refer to Contact Progent.
Progent's Expertise for UNIX Systems
Progent's UNIX consulting experts offer small companies and product developers help with managing and maintaining UNIX/Linux/Mac-based networks that may coexist with Microsoft technology. Progent provides your business contact with UNIX support experts, certified Microsoft engineers, Cisco-certified CCIEs, and security specialists certified by CISM. This broad array of expertise gives your company a readily available one-stop resource to help you to create and maintain a protected and robust cross-platform connectivity and communications infrastructure that incorporates Microsoft technology with leading versions of UNIX such as:
Apple macOS and OS X ,
IBM AIX Operating System,
Berkeley UNIX (BSD),
Silicon Graphics IRIX or major Linux distributions such as
fedora Linux, and