Network monitoring typically consists of tracking a network’s data traffic to help determine bottlenecks or to troubleshoot equipment or software problems. Nagios and MRTG are powerful, Open Source monitoring utilities that run with Linux and can be helpful to understand mixed-platform networks where UNIX family systems and Windows both operate. Progent's IT integration consultants can show you how to deploy each of these products to optimize and troubleshoot your network.
Nagios Open Source Monitoring System
The Nagios network monitoring system is a host/service monitor that operates with Linux or a UNIX variant. The monitoring daemon executes periodic inspections of hosts and services you request using external plug-ins which bring back status data to Nagios. When problems are encountered, the daemon can send alerts to administrative personnel in a number of ways such as email, IM, or Short Message Service. Up to date status data, historical logs, and analysis reports can be examined via a web browser.
Key features of Nagios include:
- Monitoring of network services such as POP3, HTTP, SSH, and PING
- Monitoring of host machines: processor load, disk and memory utilization, log files, etc.
- Capability to define host ranking, allowing differentiation between machines that are down vs. ones that are not accessible
- Support personnel notifications by e-mail, pager, or other user-specified method when service or host problems are detected or get resolved
- Option to specify scripts to be run upon the detection of service or machine events for automated problem resolution
- Accommodation for deploying redundant and distributed network monitoring computers
- Outboard command option that allows ad hoc edits to be defined for the monitoring and notification behavior through the utilization of event handlers, the web GUI, and independent software
- Preservation of host and service status across application restarts
- Scheduled offline periods for eliminating machine and service notifications during intentional outages
- Browser applet for viewing current network status, notification and problem history, log file, etc.
- Permissions scheme that allows you to restrict what users can view and modify via the web applet
MRTG Graphical Traffic Load Monitor is a free utility to track the bandwidth utilization on your network. Running under Microsoft Windows or Linux, MRTG reads the traffic counters of routers and creates web pages which provide an up-to-date visual depiction of this data.
MRTG allows you to track the traffic in and out of any SNMP network appliance. This can represent processors, routers, and switches. Administrators can utilize the resulting information to determine system bottlenecks.
Type of information you can depict using MRTG include:
- Traffic in and out in bits or bytes per second
- Connection rate in connections/sec
- Traffic through a particular VIP/virtual server or node server
- Total number of simultaneous sessions
Contact Progent for Network Monitoring Help
Progent’s network monitoring consultants are skilled in using a variety of utilities that can help you to repair or optimize your connectivity infrastructure. For network monitoring assistance, call Progent at 800-993-9400 or go to Contact Progent.
Progent's Help for UNIX Networks
Progent's UNIX-family support experts provide small companies and developers help with administering and servicing UNIX/Linux/Mac-based systems that can coexist with Microsoft-based technology. Progent offers your organization access to UNIX support professionals, certified Microsoft consultants, Cisco CCIEs, and security experts accredited by CISSP and CISM. This broad array of knowledge gives you a convenient single resource to help you to create and support a secure and resilient cross-platform connectivity and communications solution that incorporates Microsoft technology with popular variants of UNIX including:
Apple macOS and OS X ,
IBM AIX OS,
HP-UX (Hewlett Packard UNIX),
Berkeley UNIX (BSD),
Silicon Graphics IRIX (SGI/IRIX) or important Linux distributions such as
Debian GNU/Linux and
fedora Linux, and