Any firewall gotchas for NRPE?

[Gabriel - IP Guys]

I've just finished configuring a Nagios instance, and I have also
install NRPE locally on the same machine. I have configured NRPE and
checked that it's working by running the following,

 

# /usr/lib/nagios/plugins/check_nrpe -H 127.0.0.1

NRPE v2.12

 

The result comes back as expected. Also, checking swap returns the
following.

 

# /usr/lib/nagios/plugins/check_swap -w 20% -c 10%

SWAP OK - 100% free (1983 MB out of 1983 MB) |swap=1983MB;396;198;0;1983

 

So I know that NRPE itself is working, what I can't figure out is why
Nagios not giving me the extra data, I just get the error msg 

CHECK_NRPE: Socket timeout after 10 seconds.

 

Any advice appreciated. Just to clarify, Nagios and NRPE are running on
the same box.

---

Kind Regards,

Mr Gabriel

 

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