In the NetSNMP FAQ section there is an entry discussing "How can I run AgentX
with a different socket address". It basically states the master agent and
subagent must agree on the same port number.
As an example, it indicates the following line can be added to the "snmpd.conf"
file to indicate the master agent must use port 705 ....
agentxsocket localhost:705
... and the following code can be added to the "subagent.c" file to indicate
the subagent should use port 705:
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET,
"localhost:705");
Now, just below this information the following information is provided:
With the example subagent code from the Net-SNMP tutorial, this line
would be added immediately before the 'init_agent' call.
The same approach can also be used to listen on a different named
socket, using:
agentxsocket /tmp/agentx
agentxperms 777 777 myuser mygroup
or
snmpd -x /tmp/agentx ....
or
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET, "/tmp/agentx");
as appropriate.
But also see the mention of AgentX security (or the lack of it!) in the
earlier entry.
Questions:
1) Please explain what the text "/tmp/agentx" represents? Does it somehow
represent a port number?
2) What is the "agentxperms 777 777 myuser mygroup" text represent? How is it
related to the "agentxsocket" text line provided above it?
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