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-rw-r--r--interface-definitions/include/constraint/host-name.xml.in3
1 files changed, 3 insertions, 0 deletions
diff --git a/interface-definitions/include/constraint/host-name.xml.in b/interface-definitions/include/constraint/host-name.xml.in
new file mode 100644
index 000000000..202c200f4
--- /dev/null
+++ b/interface-definitions/include/constraint/host-name.xml.in
@@ -0,0 +1,3 @@
+<!-- include start from constraint/host-name.xml.in -->
+<regex>[A-Za-z0-9][-.A-Za-z0-9]*[A-Za-z0-9]</regex>
+<!-- include end -->