We have noted with SL 3.0.2 that there are frequently a large number of error messages in /var/log/messages generated by sgi_fam. They look like Jan 26 16:57:57 dmbr063 xinetd[6342]: libwrap refused connection to sgi_fam (libwrap=fam) from <no address> Jan 26 16:57:58 dmbr063 xinetd[6350]: warning: can't get client address: Transport endpoint is not connected In some cases they are generated fast enough to cause problems like not being able to log in. There is a workaround: Add the line flags = NOLIBWRAP to /etc/xinetd.d/sgi_fam For more info see http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=114316