Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 227 insertions, 0 deletions

diff --git a/upstream/opensuse-tumbleweed/man5/dnssec-trust-anchors.d.5 b/upstream/opensuse-tumbleweed/man5/dnssec-trust-anchors.d.5
new file mode 100644
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--- /dev/null
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+'\" t
+.TH "DNSSEC\-TRUST\-ANCHORS\&.D" "5" "" "systemd 254" "dnssec-trust-anchors.d"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+dnssec-trust-anchors.d, systemd.positive, systemd.negative \- DNSSEC trust anchor configuration files
+.SH "SYNOPSIS"
+.PP
+/etc/dnssec\-trust\-anchors\&.d/*\&.positive
+.PP
+/run/dnssec\-trust\-anchors\&.d/*\&.positive
+.PP
+/usr/lib/dnssec\-trust\-anchors\&.d/*\&.positive
+.PP
+/etc/dnssec\-trust\-anchors\&.d/*\&.negative
+.PP
+/run/dnssec\-trust\-anchors\&.d/*\&.negative
+.PP
+/usr/lib/dnssec\-trust\-anchors\&.d/*\&.negative
+.SH "DESCRIPTION"
+.PP
+The DNSSEC trust anchor configuration files define positive and negative trust anchors
+\fBsystemd-resolved.service\fR(8)
+bases DNSSEC integrity proofs on\&.
+.SH "POSITIVE TRUST ANCHORS"
+.PP
+Positive trust anchor configuration files contain
+\fBDNSKEY\fR
+and
+\fBDS\fR
+resource record definitions to use as base for DNSSEC integrity proofs\&. See
+\m[blue]\fBRFC 4035, Section 4\&.4\fR\m[]\&\s-2\u[1]\d\s+2
+for more information about DNSSEC trust anchors\&.
+.PP
+Positive trust anchors are read from files with the suffix
+\&.positive
+located in
+/etc/dnssec\-trust\-anchors\&.d/,
+/run/dnssec\-trust\-anchors\&.d/
+and
+/usr/lib/dnssec\-trust\-anchors\&.d/\&. These directories are searched in the specified order, and a trust anchor file of the same name in an earlier path overrides a trust anchor files in a later path\&. To disable a trust anchor file shipped in
+/usr/lib/dnssec\-trust\-anchors\&.d/
+it is sufficient to provide an identically\-named file in
+/etc/dnssec\-trust\-anchors\&.d/
+or
+/run/dnssec\-trust\-anchors\&.d/
+that is either empty or a symlink to
+/dev/null
+("masked")\&.
+.PP
+Positive trust anchor files are simple text files resembling DNS zone files, as documented in
+\m[blue]\fBRFC 1035, Section 5\fR\m[]\&\s-2\u[2]\d\s+2\&. One
+\fBDS\fR
+or
+\fBDNSKEY\fR
+resource record may be listed per line\&. Empty lines and lines starting with
+"#"
+or
+";"
+are ignored, which may be used for commenting\&. A
+\fBDS\fR
+resource record is specified like in the following example:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\&. IN DS 19036 8 2 49aac11d7b6f6446702e54a1607371607a1a41855200fd2ce1cdde32f24e8fb5
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+The first word specifies the domain, use
+"\&."
+for the root domain\&. The domain may be specified with or without trailing dot, which is considered equivalent\&. The second word must be
+"IN"
+the third word
+"DS"\&. The following words specify the key tag, signature algorithm, digest algorithm, followed by the hex\-encoded key fingerprint\&. See
+\m[blue]\fBRFC 4034, Section 5\fR\m[]\&\s-2\u[3]\d\s+2
+for details about the precise syntax and meaning of these fields\&.
+.PP
+Alternatively,
+\fBDNSKEY\fR
+resource records may be used to define trust anchors, like in the following example:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+\&. IN DNSKEY 257 3 8 AwEAAagAIKlVZrpC6Ia7gEzahOR+9W29euxhJhVVLOyQbSEW0O8gcCjFFVQUTf6v58fLjwBd0YI0EzrAcQqBGCzh/RStIoO8g0NfnfL2MTJRkxoXbfDaUeVPQuYEhg37NZWAJQ9VnMVDxP/VHL496M/QZxkjf5/Efucp2gaDX6RS6CXpoY68LsvPVjR0ZSwzz1apAzvN9dlzEheX7ICJBBtuA6G3LQpzW5hOA2hzCTMjJPJ8LbqF6dsV6DoBQzgul0sGIcGOYl7OyQdXfZ57relSQageu+ipAdTTJ25AsRTAoub8ONGcLmqrAmRLKBP1dfwhYB4N7knNnulqQxA+Uk1ihz0=
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+The first word specifies the domain again, the second word must be
+"IN", followed by
+"DNSKEY"\&. The subsequent words encode the
+\fBDNSKEY\fR
+flags, protocol and algorithm fields, followed by the key data encoded in Base64\&. See
+\m[blue]\fBRFC 4034, Section 2\fR\m[]\&\s-2\u[4]\d\s+2
+for details about the precise syntax and meaning of these fields\&.
+.PP
+If multiple
+\fBDS\fR
+or
+\fBDNSKEY\fR
+records are defined for the same domain (possibly even in different trust anchor files), all keys are used and are considered equivalent as base for DNSSEC proofs\&.
+.PP
+Note that
+systemd\-resolved
+will automatically use a built\-in trust anchor key for the Internet root domain if no positive trust anchors are defined for the root domain\&. In most cases it is hence unnecessary to define an explicit key with trust anchor files\&. The built\-in key is disabled as soon as at least one trust anchor key for the root domain is defined in trust anchor files\&.
+.PP
+It is generally recommended to encode trust anchors in
+\fBDS\fR
+resource records, rather than
+\fBDNSKEY\fR
+resource records\&.
+.PP
+If a trust anchor specified via a
+\fBDS\fR
+record is found revoked it is automatically removed from the trust anchor database for the runtime\&. See
+\m[blue]\fBRFC 5011\fR\m[]\&\s-2\u[5]\d\s+2
+for details about revoked trust anchors\&. Note that
+systemd\-resolved
+will not update its trust anchor database from DNS servers automatically\&. Instead, it is recommended to update the resolver software or update the new trust anchor via adding in new trust anchor files\&.
+.PP
+The current DNSSEC trust anchor for the Internet\*(Aqs root domain is available at the
+\m[blue]\fBIANA Trust Anchor and Keys\fR\m[]\&\s-2\u[6]\d\s+2
+page\&.
+.SH "NEGATIVE TRUST ANCHORS"
+.PP
+Negative trust anchors define domains where DNSSEC validation shall be turned off\&. Negative trust anchor files are found at the same location as positive trust anchor files, and follow the same overriding rules\&. They are text files with the
+\&.negative
+suffix\&. Empty lines and lines whose first character is
+";"
+are ignored\&. Each line specifies one domain name which is the root of a DNS subtree where validation shall be disabled\&. For example:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+# Reverse IPv4 mappings
+10\&.in\-addr\&.arpa
+16\&.172\&.in\-addr\&.arpa
+168\&.192\&.in\-addr\&.arpa
+\&.\&.\&.
+# Some custom domains
+prod
+stag
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+Negative trust anchors are useful to support private DNS subtrees that are not referenced from the Internet DNS hierarchy, and not signed\&.
+.PP
+\m[blue]\fBRFC 7646\fR\m[]\&\s-2\u[7]\d\s+2
+for details on negative trust anchors\&.
+.PP
+If no negative trust anchor files are configured a built\-in set of well\-known private DNS zone domains is used as negative trust anchors\&.
+.PP
+It is also possibly to define per\-interface negative trust anchors using the
+\fIDNSSECNegativeTrustAnchors=\fR
+setting in
+\fBsystemd.network\fR(5)
+files\&.
+.SH "SEE ALSO"
+.PP
+\fBsystemd\fR(1),
+\fBsystemd-resolved.service\fR(8),
+\fBresolved.conf\fR(5),
+\fBsystemd.network\fR(5)
+.SH "NOTES"
+.IP " 1." 4
+RFC 4035, Section 4.4
+.RS 4
+\%https://tools.ietf.org/html/rfc4035#section-4.4
+.RE
+.IP " 2." 4
+RFC 1035, Section 5
+.RS 4
+\%https://tools.ietf.org/html/rfc1035#section-5
+.RE
+.IP " 3." 4
+RFC 4034, Section 5
+.RS 4
+\%https://tools.ietf.org/html/rfc4034#section-5
+.RE
+.IP " 4." 4
+RFC 4034, Section 2
+.RS 4
+\%https://tools.ietf.org/html/rfc4034#section-2
+.RE
+.IP " 5." 4
+RFC 5011
+.RS 4
+\%https://tools.ietf.org/html/rfc5011
+.RE
+.IP " 6." 4
+IANA Trust Anchor and Keys
+.RS 4
+\%https://data.iana.org/root-anchors/root-anchors.xml
+.RE
+.IP " 7." 4
+RFC 7646
+.RS 4
+\%https://tools.ietf.org/html/rfc7646
+.RE