nslookup problem

[Paco Martinez]

Estimated gurus.

I have a problem in my server.

Has Red Hat 7.2 and rsync 2.4.6.

This PC receive each 5 minutes backup from others PC.

And randonly appears this error.

Oct 15 17:30:35 conectapyme rsyncd[28394]: reverse name lookup failed
Oct 15 17:30:41 conectapyme rsyncd[28394]: forward name lookup failed

But only sometimes....

Making nslookup, I can resolve inversily by IP.

Any solution ??