man: update documents of "_outbound" addresses

Follow-up for 4adf2653e2a68d4d593b46734fd9e24721a8d449.
Addresses https://github.com/systemd/systemd/issues/34739#issuecomment-2412904739.

diff --git a/man/nss-myhostname.xml b/man/nss-myhostname.xml
index e0cfffe023e679da7ef5341ff3b496211a187aa1..200c9220b9909a576ace73ab95350de691bb4185 100644 (file)
--- a/man/nss-myhostname.xml
+++ b/man/nss-myhostname.xml
@@ -53,11 +53,12 @@
       current network configuration state.</para></listitem>
 
       <listitem><para>The hostname <literal>_outbound</literal> is resolved to the local IPv4 and IPv6
-      addresses that are most likely used for communication with other hosts. This is determined by
-      requesting a routing decision to the configured default gateways from the kernel and then using the
-      local IP addresses selected by this decision. This hostname is only available if there is at least one
-      local default gateway configured. This assigns a stable hostname to the local outbound IP addresses,
-      useful for referencing them independently of the current network configuration state.</para></listitem>
+      addresses that are most likely used for communication with other hosts. This is the preferred source
+      addresses of default gateways if specified, or determined by requesting a routing decision to the
+      configured default gateways from the kernel and then using the local IP addresses selected by this
+      decision. This hostname is only available if there is at least one local default gateway configured.
+      This assigns a stable hostname to the local outbound IP addresses, useful for referencing them
+      independently of the current network configuration state.</para></listitem>
     </itemizedlist>
 
     <para>Various software relies on an always-resolvable local

diff --git a/man/systemd-resolved.service.xml b/man/systemd-resolved.service.xml
index 8d22b22e85004a718e1e8bbe0aac72fe699d5dbe..210a8432336f7859aa2aa541399a24cf82e5432d 100644 (file)
--- a/man/systemd-resolved.service.xml
+++ b/man/systemd-resolved.service.xml
@@ -118,11 +118,12 @@
       useful for referencing it independently of the current network configuration state.</para></listitem>
 
       <listitem><para>The hostname <literal>_outbound</literal> is resolved to the local IPv4 and IPv6
-      addresses that are most likely used for communication with other hosts. This is determined by
-      requesting a routing decision to the configured default gateways from the kernel and then using the
-      local IP addresses selected by this decision. This hostname is only available if there is at least one
-      local default gateway configured. This assigns a stable hostname to the local outbound IP addresses,
-      useful for referencing them independently of the current network configuration state.</para></listitem>
+      addresses that are most likely used for communication with other hosts. This is the preferred source
+      addresses of default gateways if specified, or determined by requesting a routing decision to the
+      configured default gateways from the kernel and then using the local IP addresses selected by this
+      decision. This hostname is only available if there is at least one local default gateway configured.
+      This assigns a stable hostname to the local outbound IP addresses, useful for referencing them
+      independently of the current network configuration state.</para></listitem>
 
       <listitem><para>The hostname <literal>_localdnsstub</literal> is resolved to the IP address 127.0.0.53,
       i.e. the address the local DNS stub (see above) is listening on.</para></listitem>