In the file, snmpd.c, I've seen the following code:
RETSIGTYPE
SnmpdShutDown(int a)
{
#ifdef WIN32
extern netsnmp_session *main_session;
#endif
running = 0;
#ifdef WIN32
/*
* In case of windows, select() in receive() function will not return
* on signal. Thats why following function is called, which closes the
* socket descriptors and causes the select() to return
*/
snmp_close(main_session);
#endif
}
this function is registered for SIGINT and for SIGTERM. Is the socket freed
in the function SnmpdShutDown (snmp_close)?
I put a printf in the function SnmpdShutDown, and launch the snmpd with the
log activated.
I have the following messages :
Received TERM or STOP signal... shutting down...
but I don't have my specific message although the SIGTERM has been detected.
>From: "Dave Shield" <[EMAIL PROTECTED]>
>To: "Arnaud BODENAN" <[EMAIL PROTECTED]>
>CC: [email protected]
>Subject: Re: Unix socket not deleted in a config master/subagent
>Date: Fri, 25 Aug 2006 15:58:43 +0100
>
>On 25/08/06, Arnaud BODENAN <[EMAIL PROTECTED]> wrote:
> > When I start the master agent, 'ls -ltr master' gives:
> > srwxrwxr-x 1 arnboden rms 0 Aug 25 11:09 ../master
> >
> > When I start the subagent, the same command gives the same result:
> > srwxrwxr-x 1 arnboden rms 0 Aug 25 11:09 ../master
>
>Yes. That's as expected.
>The master agent creates the socket (and listens on it, and deletes it
>when it's finished).
>The subagent simply connects to it.
>
>The master agent *controls* the socket - the subagent *uses* it.
>
>
> > But, I'm a bit confused with this parameter (agentxsocket). When must I
>use:
> > - a named socket?
> > - an address?
>
>There's no "must" - you can use either, depending on your particular
>requirements.
>OK - that's not quite true. If your subagents are running on a
>different system than the master agent, then you need to use a TCP
>socket (i.e. an address). If everything's running on the same box,
>then you can use either.
>
>
> > For security reasons, is it preferable to use named socket or address?
>
>A named socket.
>That allows you to use filesystem permissions to restrict access to it.
>A network socket is open to anybody - one of the biggest flaws in
>AgentX security.
>
>Dave
>
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