Input Field Format B-1
v1.0, October 2007
Appendix B
Input Field Format
Domain or Workgroup Name
A valid domain or workgroup name must conform to the following restrictions:
• Name must consist only of characters a–z, A–Z, 0–9, and the symbols _ (underscore), -
(hyphen), and . (period).
• Name must start with a letter.
• Name length must be 15 characters or less.
Host
A valid IP address or a host name.
Host Name
A valid host name must conform to the following restrictions:
• Name must consist only of characters a–z, A–Z, 0–9, and the symbols - (hyphen) and .
(period).
• Name must start with a letter.
• A short host name length must be 15 characters or less.
• A fully-qualified domain name (FQDN) must have no more than 63 characters in each section
separated by . (period), and cannot end with a - (hyphen). Example of a valid FQDN:
firstpart.secondpart.thirdpart.com.
ReadyNAS Host Name
A valid host name except the first part or short host name must be 15 characters or less due to the
NetBIOS name length restriction.
Host Expression
A valid host expression is either a valid host or the common IP expression form specifying a range
of addresses in a network, for example:
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