Red Hat Bugzilla – Bug 55936
xinetd identd timeouts experienced when using default configurations
Last modified: 2007-04-18 12:38:09 EDT
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User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Description of problem:
Most of the files placed in /etc/xinetd.d by various daemons have lines
log_on_failure += USERID
However, when connecting to any of these daemons from a machine without an
identd daemon (Windows) you will experience a very long timeout while
xinetd waits for a response.
This identd lookup is entirely unneccesary for anything useful and should
not be introduced when 90% of the machines that are likely to connect to
Redhat servers will not be running identd.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Simply attempt to connect to a daemon such as imap or pop on a Redhat
server from a client without an identd daemon.
Actual Results: Long hang while identd times out
I would recommend completely revamping the necessary xinetd.d config files
to NOT include USERID or somehow make xinetd timeout after a short
interval (0-5 seconds) when an identd lookup is not available.
There is no good reason for the general case of client connections to
experience a 30 second timeout because of an unneccesary identd lookup.
None of them are in xinetd - file them against the packages with this configuration.