We run some code listening on a port and running under xinetd that received connections from other machines. If those other machines do not have proper DNS entries, /var/log/messages fills with warnings such as the following:
Does anyone know what causes this? Is xinetd doing a reverse lookup each time a connection occurs? If so, is there some way to disable this lookup?
I've tried altering the log_on_success and log_on_failure parameters in xinetd but it still occurs (figured removal of HOST would do it but it didnt).
Code:
Apr 8 08:56:49 ps-sm-poly3u-09 xinetd[18388]: warning: /etc/hosts.allow, line 6: can't verify hostname: getaddrinfo(ps-ps-pogo-43.pg-43, AF_INET) failed Apr 8 08:56:49 ps-sm-poly3u-09 xinetd[18389]: warning: /etc/hosts.allow, line 6: can't verify hostname: getaddrinfo(ps-ps-pogo-43.pg-43, AF_INET) failed Apr 8 08:57:07 ps-sm-poly3u-09 xinetd[18397]: warning: /etc/hosts.allow, line 6: can't verify hostname: getaddrinfo(ps-ps-pogo-43.pg-43, AF_INET) failedDoes anyone know what causes this? Is xinetd doing a reverse lookup each time a connection occurs? If so, is there some way to disable this lookup?
I've tried altering the log_on_success and log_on_failure parameters in xinetd but it still occurs (figured removal of HOST would do it but it didnt).