![Remote execution using extend in Net-SNMP
Monitoring server UDP
Observed server
(stateless / unreliable / secured in v3)
process context monitoring application process context - SNMP agent
SNMP Monitor Net-SNMP agent
script
mapping SNMP-OID to
call remote OID SNMP request
command <args []>
command <args[]>
command
Port 161
Test
verify result result
result and values
Service state
Up/Down
created 21.06.2010 – ronny@opennms.org](https://image.slidesharecdn.com/remoteexecution-12770817185063-phpapp01/85/Strategies-in-remote-execution-with-OpenNMS-1-320.jpg)
![Remote execution using NRPE
Monitoring server TCP
Observed server
(reliable / connection oriented / secured)
process context monitoring application process context - NRPE agent
NRPE Monitor NRPE agent
script
call NRPE describer with args
mapping describer to
call remote
command <args []>
command <args[]>
command
Port 5666
Test
verify result result
result and values
Service state
Up/Down
created 21.06.2010 – ronny@opennms.org](https://image.slidesharecdn.com/remoteexecution-12770817185063-phpapp01/85/Strategies-in-remote-execution-with-OpenNMS-2-320.jpg)
![Remote execution using Secure Shell
Monitoring server TCP
Observed server
(reliable / connection oriented / secured)
process context monitoring application process context - SSH user
General Purpose Monitor SSH-Server
script
call remote call binary / script
command <args[]>
command
Port 22
Test
verify result result
result and values
Service state
Up/Down
created 21.06.2010 – ronny@opennms.org](https://image.slidesharecdn.com/remoteexecution-12770817185063-phpapp01/85/Strategies-in-remote-execution-with-OpenNMS-3-320.jpg)
![Remote execution using Secure Shell
extended with code transfer
Monitoring server TCP
Observed server
(reliable / connection oriented / secured)
process context monitoring application process context - SSH user
General Purpose Monitor SSH-Server
script
temp.
copy binary or script transfer binary / script script
call remote call binary / script
command <args[]>
command
Port 22
Test
verify result result
result and values
delete remote
delete binary / script delete
command
script
Service state
Up/Down
created 21.06.2010 – ronny@opennms.org](https://image.slidesharecdn.com/remoteexecution-12770817185063-phpapp01/85/Strategies-in-remote-execution-with-OpenNMS-4-320.jpg)
Strategies in remote execution with OpenNMS
- 1. Remote execution using extend in Net-SNMP Monitoring server UDP Observed server (stateless / unreliable / secured in v3) process context monitoring application process context - SNMP agent SNMP Monitor Net-SNMP agent script mapping SNMP-OID to call remote OID SNMP request command <args []> command <args[]> command Port 161 Test verify result result result and values Service state Up/Down created 21.06.2010 – ronny@opennms.org
- 2. Remote execution using NRPE Monitoring server TCP Observed server (reliable / connection oriented / secured) process context monitoring application process context - NRPE agent NRPE Monitor NRPE agent script call NRPE describer with args mapping describer to call remote command <args []> command <args[]> command Port 5666 Test verify result result result and values Service state Up/Down created 21.06.2010 – ronny@opennms.org
- 3. Remote execution using Secure Shell Monitoring server TCP Observed server (reliable / connection oriented / secured) process context monitoring application process context - SSH user General Purpose Monitor SSH-Server script call remote call binary / script command <args[]> command Port 22 Test verify result result result and values Service state Up/Down created 21.06.2010 – ronny@opennms.org
- 4. Remote execution using Secure Shell extended with code transfer Monitoring server TCP Observed server (reliable / connection oriented / secured) process context monitoring application process context - SSH user General Purpose Monitor SSH-Server script temp. copy binary or script transfer binary / script script call remote call binary / script command <args[]> command Port 22 Test verify result result result and values delete remote delete binary / script delete command script Service state Up/Down created 21.06.2010 – ronny@opennms.org