diff --git a/lib/libc/net/resolver.3 b/lib/libc/net/resolver.3
index 684f2e8d98fc..6694845f0764 100644
--- a/lib/libc/net/resolver.3
+++ b/lib/libc/net/resolver.3
@@ -1,461 +1,458 @@
 .\" Copyright (c) 1985, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
 .\" 1. Redistributions of source code must retain the above copyright
 .\"    notice, this list of conditions and the following disclaimer.
 .\" 2. Redistributions in binary form must reproduce the above copyright
 .\"    notice, this list of conditions and the following disclaimer in the
 .\"    documentation and/or other materials provided with the distribution.
 .\" 3. Neither the name of the University nor the names of its contributors
 .\"    may be used to endorse or promote products derived from this software
 .\"    without specific prior written permission.
 .\"
 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
 .\"     @(#)resolver.3	8.1 (Berkeley) 6/4/93
 .\" $FreeBSD$
 .\"
-.Dd May 29, 2009
+.Dd September 15, 2022
 .Dt RESOLVER 3
 .Os
 .Sh NAME
 .Nm res_query ,
 .Nm res_search ,
 .Nm res_mkquery ,
 .Nm res_send ,
 .Nm res_init ,
 .Nm dn_comp ,
 .Nm dn_expand ,
 .Nm dn_skipname ,
 .Nm ns_get16 ,
 .Nm ns_get32 ,
 .Nm ns_put16 ,
 .Nm ns_put32
 .Nd resolver routines
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
 .In sys/types.h
 .In netinet/in.h
 .In arpa/nameser.h
 .In resolv.h
 .Ft int
 .Fo res_query
 .Fa "const char *dname"
 .Fa "int class"
 .Fa "int type"
 .Fa "u_char *answer"
 .Fa "int anslen"
 .Fc
 .Ft int
 .Fo res_search
 .Fa "const char *dname"
 .Fa "int class"
 .Fa "int type"
 .Fa "u_char *answer"
 .Fa "int anslen"
 .Fc
 .Ft int
 .Fo res_mkquery
 .Fa "int op"
 .Fa "const char *dname"
 .Fa "int class"
 .Fa "int type"
 .Fa "const u_char *data"
 .Fa "int datalen"
 .Fa "const u_char *newrr_in"
 .Fa "u_char *buf"
 .Fa "int buflen"
 .Fc
 .Ft int
 .Fo res_send
 .Fa "const u_char *msg"
 .Fa "int msglen"
 .Fa "u_char *answer"
 .Fa "int anslen"
 .Fc
 .Ft int
 .Fn res_init void
 .Ft int
 .Fo dn_comp
 .Fa "const char *exp_dn"
 .Fa "u_char *comp_dn"
 .Fa "int length"
 .Fa "u_char **dnptrs"
 .Fa "u_char **lastdnptr"
 .Fc
 .Ft int
 .Fo dn_expand
 .Fa "const u_char *msg"
 .Fa "const u_char *eomorig"
 .Fa "const u_char *comp_dn"
 .Fa "char *exp_dn"
 .Fa "int length"
 .Fc
 .Ft int
 .Fn dn_skipname "const u_char *comp_dn" "const u_char *eom"
 .Ft u_int
 .Fn ns_get16 "const u_char *src"
 .Ft u_long
 .Fn ns_get32 "const u_char *src"
 .Ft void
 .Fn ns_put16 "u_int src" "u_char *dst"
 .Ft void
 .Fn ns_put32 "u_long src" "u_char *dst"
 .Sh DESCRIPTION
 These routines are used for making, sending and interpreting
 query and reply messages with Internet domain name servers.
 .Pp
 Global configuration and state information that is used by the
 resolver routines is kept in the structure
 .Va _res .
 Most of the values have reasonable defaults and can be ignored.
 Options
 stored in
 .Va _res.options
 are defined in
 .In resolv.h
 and are as follows.
 Options are stored as a simple bit mask containing the bitwise ``or''
 of the options enabled.
 .Bl -tag -width RES_USE_INET6
 .It Dv RES_INIT
 True if the initial name server address and default domain name are
 initialized (i.e.,
 .Fn res_init
 has been called).
 .It Dv RES_DEBUG
 Print debugging messages.
 .It Dv RES_AAONLY
 Accept authoritative answers only.
 With this option,
 .Fn res_send
 should continue until it finds an authoritative answer or finds an error.
 Currently this is not implemented.
 .It Dv RES_USEVC
 Use
 .Tn TCP
 connections for queries instead of
 .Tn UDP
 datagrams.
 .It Dv RES_STAYOPEN
 Used with
 .Dv RES_USEVC
 to keep the
 .Tn TCP
 connection open between
 queries.
 This is useful only in programs that regularly do many queries.
 .Tn UDP
 should be the normal mode used.
 .It Dv RES_IGNTC
 Unused currently (ignore truncation errors, i.e., do not retry with
 .Tn TCP ) .
 .It Dv RES_RECURSE
 Set the recursion-desired bit in queries.
 This is the default.
 .Pf ( Fn res_send
 does not do iterative queries and expects the name server
 to handle recursion.)
 .It Dv RES_DEFNAMES
 If set,
 .Fn res_search
 will append the default domain name to single-component names
 (those that do not contain a dot).
 This option is enabled by default.
 .It Dv RES_DNSRCH
 If this option is set,
 .Fn res_search
 will search for host names in the current domain and in parent domains; see
 .Xr hostname 7 .
 This is used by the standard host lookup routine
 .Xr gethostbyname 3 .
 This option is enabled by default.
 .It Dv RES_NOALIASES
 This option turns off the user level aliasing feature controlled by the
 .Dq Ev HOSTALIASES
 environment variable.
 Network daemons should set this option.
 .It Dv RES_USE_INET6
 Enables support for IPv6-only applications.
 This causes IPv4 addresses to be returned as an IPv4 mapped address.
 For example,
 .Li 10.1.1.1
 will be returned as
 .Li ::ffff:10.1.1.1 .
 The option is meaningful with certain kernel configuration only.
 .It Dv RES_USE_EDNS0
 Enables support for OPT pseudo-RR for EDNS0 extension.
 With the option, resolver code will attach OPT pseudo-RR into DNS queries,
 to inform of our receive buffer size.
 The option will allow DNS servers to take advantage of non-default receive
 buffer size, and to send larger replies.
 DNS query packets with EDNS0 extension is not compatible with
 non-EDNS0 DNS servers.
 .El
 .Pp
 The
 .Fn res_init
 routine
 reads the configuration file (if any; see
 .Xr resolver 5 )
 to get the default domain name,
 search list and
 the Internet address of the local name server(s).
 If no server is configured, the host running
 the resolver is tried.
 The current domain name is defined by the hostname
 if not specified in the configuration file;
 it can be overridden by the environment variable
 .Ev LOCALDOMAIN .
 This environment variable may contain several blank-separated
 tokens if you wish to override the
 .Em "search list"
 on a per-process basis.
 This is similar to the
 .Ic search
 command in the configuration file.
 Another environment variable
 .Dq Ev RES_OPTIONS
 can be set to
 override certain internal resolver options which are otherwise
 set by changing fields in the
 .Va _res
 structure or are inherited from the configuration file's
 .Ic options
 command.
 The syntax of the
 .Dq Ev RES_OPTIONS
 environment variable is explained in
 .Xr resolver 5 .
 Initialization normally occurs on the first call
 to one of the following routines.
 .Pp
 The
 .Fn res_query
 function provides an interface to the server query mechanism.
 It constructs a query, sends it to the local server,
 awaits a response, and makes preliminary checks on the reply.
 The query requests information of the specified
 .Fa type
 and
 .Fa class
 for the specified fully-qualified domain name
 .Fa dname .
 The reply message is left in the
 .Fa answer
 buffer with length
 .Fa anslen
 supplied by the caller.
 .Pp
 The
 .Fn res_search
 routine makes a query and awaits a response like
 .Fn res_query ,
 but in addition, it implements the default and search rules
 controlled by the
 .Dv RES_DEFNAMES
 and
 .Dv RES_DNSRCH
 options.
 It returns the first successful reply.
 .Pp
 The remaining routines are lower-level routines used by
 .Fn res_query .
 The
 .Fn res_mkquery
 function
 constructs a standard query message and places it in
 .Fa buf .
 It returns the size of the query, or \-1 if the query is
 larger than
 .Fa buflen .
 The query type
 .Fa op
 is usually
 .Dv QUERY ,
 but can be any of the query types defined in
 .In arpa/nameser.h .
 The domain name for the query is given by
 .Fa dname .
 The
 .Fa newrr_in
 argument
 is currently unused but is intended for making update messages.
 .Pp
 The
 .Fn res_send
 routine
 sends a pre-formatted query and returns an answer.
 It will call
 .Fn res_init
 if
 .Dv RES_INIT
 is not set, send the query to the local name server, and
 handle timeouts and retries.
 The length of the reply message is returned, or
 \-1 if there were errors.
 .Pp
 The
 .Fn dn_comp
 function
 compresses the domain name
 .Fa exp_dn
 and stores it in
 .Fa comp_dn .
 The size of the compressed name is returned or \-1 if there were errors.
 The size of the array pointed to by
 .Fa comp_dn
 is given by
 .Fa length .
 The compression uses
 an array of pointers
 .Fa dnptrs
 to previously-compressed names in the current message.
 The first pointer points to
 the beginning of the message and the list ends with
 .Dv NULL .
 The limit to the array is specified by
 .Fa lastdnptr .
 A side effect of
 .Fn dn_comp
 is to update the list of pointers for
 labels inserted into the message
 as the name is compressed.
 If
 .Fa dnptr
 is
 .Dv NULL ,
 names are not compressed.
 If
 .Fa lastdnptr
 is
 .Dv NULL ,
 the list of labels is not updated.
 .Pp
 The
 .Fn dn_expand
 entry
 expands the compressed domain name
 .Fa comp_dn
 to a full domain name
 The compressed name is contained in a query or reply message;
 .Fa msg
 is a pointer to the beginning of the message.
 The uncompressed name is placed in the buffer indicated by
 .Fa exp_dn
 which is of size
 .Fa length .
 The size of compressed name is returned or \-1 if there was an error.
 .Pp
 The
 .Fn dn_skipname
 function skips over a compressed domain name, which starts at a location
 pointed to by
 .Fa comp_dn .
 The compressed name is contained in a query or reply message;
 .Fa eom
 is a pointer to the end of the message.
 The size of compressed name is returned or \-1 if there was
 an error.
 .Pp
 The
 .Fn ns_get16
 function gets a 16-bit quantity from a buffer pointed to by
 .Fa src .
 .Pp
 The
 .Fn ns_get32
 function gets a 32-bit quantity from a buffer pointed to by
 .Fa src .
 .Pp
 The
 .Fn ns_put16
 function puts a 16-bit quantity
 .Fa src
 to a buffer pointed to by
 .Fa dst .
 .Pp
 The
 .Fn ns_put32
 function puts a 32-bit quantity
 .Fa src
 to a buffer pointed to by
 .Fa dst .
 .Sh IMPLEMENTATION NOTES
 This implementation of the resolver is thread-safe, but it will not
 function properly if the programmer attempts to declare his or her own
 .Va _res
 structure in an attempt to replace the per-thread version referred to
 by that macro.
 .Pp
 The following compile-time option can be specified to change the default
 behavior of resolver routines when necessary.
 .Bl -tag -width RES_ENFORCE_RFC1034
 .It Dv RES_ENFORCE_RFC1034
 If this symbol is defined during compile-time,
 .Fn res_search
 will enforce RFC 1034 check, namely, disallow using of underscore character
 within host names.
 This is used by the standard host lookup routines like
 .Xr gethostbyname 3 .
 For compatibility reasons this option is not enabled by default.
 .El
 .Sh RETURN VALUES
 The
 .Fn res_init
 function will return 0 on success, or \-1 in a threaded program if
 per-thread storage could not be allocated.
 .Pp
 The
 .Fn res_mkquery ,
 .Fn res_search ,
 and
 .Fn res_query
 functions return the size of the response on success, or \-1 if an
 error occurs.
 The integer
 .Vt h_errno
 may be checked to determine the reason for error.
 See
 .Xr gethostbyname 3
 for more information.
 .Sh FILES
 .Bl -tag -width /etc/resolv.conf
 .It Pa /etc/resolv.conf
 The configuration file,
 see
 .Xr resolver 5 .
 .El
 .Sh SEE ALSO
 .Xr gethostbyname 3 ,
 .Xr resolver 5 ,
 .Xr hostname 7 ,
 .Xr named 8
 .Pp
 .%T RFC1032 ,
 .%T RFC1033 ,
 .%T RFC1034 ,
 .%T RFC1035 ,
 .%T RFC974
-.Rs
-.%T "Name Server Operations Guide for BIND"
-.Re
 .Sh HISTORY
 The
 .Nm
 function appeared in
 .Bx 4.3 .
diff --git a/share/man/man5/hosts.5 b/share/man/man5/hosts.5
index ca7586f039b7..6bf643f6c5ce 100644
--- a/share/man/man5/hosts.5
+++ b/share/man/man5/hosts.5
@@ -1,97 +1,94 @@
 .\" Copyright (c) 1983, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
 .\" 1. Redistributions of source code must retain the above copyright
 .\"    notice, this list of conditions and the following disclaimer.
 .\" 2. Redistributions in binary form must reproduce the above copyright
 .\"    notice, this list of conditions and the following disclaimer in the
 .\"    documentation and/or other materials provided with the distribution.
 .\" 3. Neither the name of the University nor the names of its contributors
 .\"    may be used to endorse or promote products derived from this software
 .\"    without specific prior written permission.
 .\"
 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
 .\"     @(#)hosts.5	8.2 (Berkeley) 12/11/93
 .\" $FreeBSD$
 .\"
-.Dd May 25, 2021
+.Dd September 15, 2022
 .Dt HOSTS 5
 .Os
 .Sh NAME
 .Nm hosts
 .Nd host name data base
 .Sh DESCRIPTION
 The
 .Nm
 file contains information regarding
 the known hosts on the network.
 It can be used in conjunction with DNS, and the NIS
 maps `hosts.byaddr' and `hosts.byname', as controlled by
 .Xr nsswitch.conf 5 .
 For each host a single line should be present
 with the following information:
 .Bd -unfilled -offset indent
 Internet address
 official host name
 aliases
 .Ed
 .Pp
 Items are separated by any number of blanks and/or
 tab characters.
 A ``#'' indicates the beginning of
 a comment; characters up to the end of the line are
 not interpreted by routines which search the file.
 .Pp
 This file provides a backup used when the name server
 is not running.
 For the name server, it is suggested that only a few addresses
 be included in this file.
 These include addresses for the local interfaces that
 .Xr ifconfig 8
 needs at boot time and a few machines on the local network.
 .Pp
 Network addresses are specified in either the conventional
 ``.'' (dot) notation for IPv4 or colon hexadecimal notation for IPv6,
 as understood by the
 .Xr inet_pton 3
 routine
 from the Internet address manipulation library,
 .Xr inet 3 .
 Host names may contain any printable
 character other than a field delimiter, newline,
 or comment character.
 .Sh FILES
 .Bl -tag -width /etc/hosts -compact
 .It Pa /etc/hosts
 The
 .Nm
 file resides in
 .Pa /etc .
 .El
 .Sh SEE ALSO
 .Xr gethostbyname 3 ,
 .Xr inet 3 ,
 .Xr nsswitch.conf 5 ,
 .Xr ifconfig 8
-.Rs
-.%T "Name Server Operations Guide for BIND"
-.Re
 .Sh HISTORY
 The
 .Nm
 file format appeared in
 .Bx 4.1c .
diff --git a/share/man/man5/resolver.5 b/share/man/man5/resolver.5
index 468c635839c6..9b45d668f4c9 100644
--- a/share/man/man5/resolver.5
+++ b/share/man/man5/resolver.5
@@ -1,235 +1,232 @@
 .\" Copyright (c) 1986, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
 .\" 1. Redistributions of source code must retain the above copyright
 .\"    notice, this list of conditions and the following disclaimer.
 .\" 2. Redistributions in binary form must reproduce the above copyright
 .\"    notice, this list of conditions and the following disclaimer in the
 .\"    documentation and/or other materials provided with the distribution.
 .\" 3. Neither the name of the University nor the names of its contributors
 .\"    may be used to endorse or promote products derived from this software
 .\"    without specific prior written permission.
 .\"
 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
 .\"     @(#)resolver.5	8.1 (Berkeley) 6/5/93
 .\" $FreeBSD$
 .\"
-.Dd November 9, 2021
+.Dd September 15, 2022
 .Dt RESOLVER 5
 .Os
 .Sh NAME
 .Nm resolver
 .Nd resolver configuration file
 .Sh SYNOPSIS
 .Nm resolv.conf
 .Sh DESCRIPTION
 The
 .Xr resolver 3
 is a set of routines in the C library
 which provide access to the Internet Domain Name System.
 The resolver configuration file contains information that is read
 by the resolver routines the first time they are invoked by a process.
 The file is designed to be human readable and contains a list of
 keywords with values that provide various types of resolver information.
 .Pp
 On a normally configured system this file should not be necessary.
 The only name server to be queried will be on the local machine,
 the domain name is determined from the host name,
 and the domain search path is constructed from the domain name.
 .Pp
 The different configuration options are:
 .Bl -tag -width nameserver
 .It Sy nameserver
 IPv4 or IPv6 address of a name server
 that the resolver should query.
 Up to
 .Dv MAXNS
 (currently 3) name servers may be listed,
 one per keyword.
 If there are multiple servers,
 the resolver library queries them in the order listed.
 If no
 .Sy nameserver
 entries are present,
 the default is to use the name server on the local machine.
 (The algorithm used is to try a name server, and if the query times out,
 try the next, until out of name servers,
 then repeat trying all the name servers
 until a maximum number of retries are made).
 .It Sy domain
 Local domain name.
 Most queries for names within this domain can use short names
 relative to the local domain.
 If no
 .Sy domain
 entry is present, the domain is determined
 from the local host name returned by
 .Xr gethostname 3 ;
 the domain part is taken to be everything after the first
 .Ql \&. .
 Finally, if the host name does not contain a domain part, the root
 domain is assumed.
 .It Sy search
 Search list for host-name lookup.
 The search list is normally determined from the local domain name;
 by default, it contains only the local domain name.
 This may be changed by listing the desired domain search path
 following the
 .Sy search
 keyword with spaces or tabs separating
 the names.
 Most resolver queries will be attempted using each component
 of the search path in turn until a match is found.
 Note that this process may be slow and will generate a lot of network
 traffic if the servers for the listed domains are not local,
 and that queries will time out if no server is available
 for one of the domains.
 .Pp
 The search list is currently limited to six domains
 with a total of 256 characters.
 .It Sy sortlist
 Sortlist allows addresses returned by gethostbyname to be sorted.
 A sortlist is specified by IP address netmask pairs.
 If the netmask is not specified,
 it defaults to the historical Class A/B/C netmask of the net;
 this usage is deprecated.
 The IP address
 and network pairs are separated by slashes.
 Up to 10 pairs may
 be specified.
 E.g.,
 .Pp
 .Dl "sortlist 10.9.1.0/255.255.240.0 10.9.0.0/255.255.0.0"
 .It Sy options
 Options allows certain internal resolver variables to be modified.
 The syntax is
 .Pp
 \fBoptions\fP \fIoption\fP \fI...\fP
 .Pp
 where
 .Sy option
 is one of the following:
 .Bl -tag -width no_tld_query
 .It Sy debug
 sets
 .Dv RES_DEBUG
 in _res.options.
 .It Sy usevc
 sets
 .Dv RES_USEVC
 to use TCP instead of UDP for queries.
 .It Sy ndots: Ns Ar n
 sets a threshold for the number of dots which must appear in a name given to
 .Fn res_query
 (see
 .Xr resolver 3 )
 before an
 .Em initial absolute query
 will be made.
 The default for
 .Em n
 is
 .Dq 1 ,
 meaning that if there are any dots in a name, the name
 will be tried first as an absolute name before any
 .Em search list
 elements are appended to it.
 .It Sy timeout: Ns Ar n
 sets the initial amount of time the resolver will wait
 for a response from a remote
 name server before retrying the query via a different name server.
 The resolver may wait longer during subsequent retries
 of the current query since an exponential back-off is applied to
 the timeout value.
 Measured in seconds, the default is
 .Dv RES_TIMEOUT ,
 the allowed maximum is
 .Dv RES_MAXRETRANS
 (see
 .In resolv.h ) .
 .It Sy attempts: Ns Ar n
 sets the number of times the resolver will send a query to each of
 its name servers
 before giving up and returning an error to the calling application.
 The default is
 .Dv RES_DFLRETRY ,
 the allowed maximum is
 .Dv RES_MAXRETRY
 (see
 .In resolv.h ) .
 .It Sy no_tld_query
 tells the resolver not to attempt to resolve a top level domain name, that
 is, a name that contains no dots.
 Use of this option does not prevent
 the resolver from obeying the standard
 .Sy domain
 and
 .Sy search
 rules with the given name.
 .It Sy reload-period: Ns Ar n
 The resolver checks the modification time of
 .Pa /etc/resolv.conf
 every
 .Ar n
 seconds.
 If
 .Pa /etc/resolv.conf
 has changed, it is automatically reloaded.
 The default for
 .Ar n
 is two seconds.
 Setting it to zero disables the file check.
 .El
 .Pp
 Options may also be specified as a space or tab separated list using the
 .Dv RES_OPTIONS
 environment variable.
 .El
 .Pp
 The
 .Sy domain
 and
 .Sy search
 keywords are mutually exclusive.
 If more than one instance of these keywords is present,
 the last instance will override.
 .Pp
 The keyword and value must appear on a single line, and the keyword
 .Pq for example, Sy nameserver
 must start the line.
 The value follows the keyword, separated by white space.
 .Sh FILES
 .Bl -tag -width /etc/resolv.conf -compact
 .It Pa /etc/resolv.conf
 The file
 .Nm resolv.conf
 resides in
 .Pa /etc .
 .El
 .Sh SEE ALSO
 .Xr gethostbyname 3 ,
 .Xr resolver 3 ,
 .Xr hostname 7 ,
 .Xr resolvconf 8
-.Rs
-.%T "Name Server Operations Guide for BIND"
-.Re
 .Sh HISTORY
 The
 .Nm resolv.conf
 file format appeared in
 .Bx 4.3 .