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CentOS 7.0 - man page for unbound-streamtcp (centos section 1)

unbound-streamtcp(1)						      unbound						      unbound-streamtcp(1)

unbound-streamtcp - unbound DNS lookup utility
unbound-streamtcp [-unsh] [-f ipaddr[@port]] name type class
unbound-streamtcp sends a DNS Query of the given type and class for the given name to the DNS server over TCP and displays the response. If the server to query is not given using the -f option then localhost ( is used. More queries can be given on one commandline, they are resolved in sequence. The available options are: name This name is resolved (looked up in the DNS). type Specify the type of data to lookup. class Specify the class to lookup for. -u Use UDP instead of TCP. No retries are attempted. -n Do not wait for the answer. -s Use SSL. -h Print program usage. -f ipaddr[@port] Specify the server to send the queries to. If not specified localhost ( is used.
Some examples of use. $ unbound-streamtcp A IN $ unbound-streamtcp -f SOA IN $ unbound-streamtcp -f PTR IN
The unbound-streamtcp program exits with status code 1 on error, 0 on no error.
This manual page was written by Tomas Hozza <>. NLnet Labs Mar 21, 2013 unbound-streamtcp(1)