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| System Protocol | Notes |
| Net-SNMP | up.time can gather basic performance data from any system running an SNMP daemon that presents information from the hoststatus.mib. |
| Novell Netware 6.5 NRM | up.time will access performance data from a Netware 6.5 system running NRM via an http or SSL connection. Authentication is required and the up.time user must log in with administrator privileges and access to the BasicHealth system screen. |
| Node Monitoring | up.time will perform service availability monitoring but not gather performance data from these systems. |
