Dear all,

recently I was looking for a cheaper solution for server management (and monitoring) as an alternative to the biggest (and expensive) offers from the market ( MS System Center, IBM Tivoli, BMC Bladelogic…) here is the list of interesting products I selected for you:

PA Server Monitor : www.poweradmin.com   (pros: best compromise for Windows-based computers)

Site Monitor: http://www.sitesmonitor.net/

Server scheck: http://www.serverscheck.fr

ServerDensity: http://www.serverdensity.com/server-monitoring/

Hyperic:  http://www.hyperic.com/

Logic Monitor: http://www.logicmonitor.com/

ServerNanny: http://www.servernanny.com

NewRelic: http://newrelic.com/lp/server-monitoring

Monitis: http://portal.monitis.com/ (cloud-based solution)

http://www.monitor.us/free-monitoring-features/server-monitoring

Woodstone server alive: http://www.woodstone.nu/salive/

SuperDoctor: http://www.supermicro.com/products/accessories/software/superdoctoriii.cfm

UptimeSoftware server monitoring: http://www.uptimesoftware.com/server-monitoring.php

SolarWinds – Application and server mgmt: http://www.solarwinds.com/application-server-management-software.aspx

WhatsUp Gold- Gold Premium: http://www.whatsupgold.com/

ManageEngine OpManager: http://www.manageengine.com/datacenter-and-server-management.html

Sciencelogic EM7: http://www.sciencelogic.com/product

GFI Network Server Monitor: http://www.gfi.com/products-and-solutions/network-security-solutions/gfi-network-server-monitor

ZABBIX: http://www.zabbix.com/

Paessler :  PRTG Network Monitor: http://www.paessler.com/prtg/download

Zenoss core: http://www.zenoss.com/solution/network

Spiceworks : Spiceworks Help Desk & Network Monitoring Platform: http://www.spiceworks.com/ (free) (pros: best compromise for srv and app monitoring)

OpenNMS : http://www.opennms.org/ (free) (more for Linux-based computers)

Nagios: http://www.nagios.org/ (free)

Ganglia: http://ganglia.sourceforge.net (free)

Cacti: http://www.cacti.net/ (free)

Munin: http://munin-monitoring.org/ (free)

Host tracker: http://host-tracker.com/ (free)

BasicState: http://basicstate.com/ (free)

Montastic: http://www.montastic.com/ (free)

finally, I found other studies here: http://sixrevisions.com/tools/10-free-server-network-monitoring-tools-that-kick-ass/ AND http://slodive.com/freebies/server-monitoring-tools/