+close the socket and open a new one before sending the second request.
+.TP
+.BR no-tld-query " (since glibc 2.14)"
+sets RES_NOTLDQUERY in
+.IR _res.options .
+This option causes
+.BR res_nsearch ()
+to not attempt to resolve an unqualified name
+as if it were a top level domain (TLD).
+This option can cause problems if the site has ``localhost'' as a TLD
+rather than having localhost on one or more elements of the search list.
+This option has no effect if neither RES_DEFNAMES or RES_DNSRCH is set.