We have a vendor product that only supports usernames shorter than 64 characters. I used the unlang expression: if ("%{#User-Name:-0}" <= 63) to avoid sending accounting with longer usernames to it, which yielded: server buffered-dpi-esc4 { +- entering group preacct {...} ++? if ("%{#User-Name:-0}" <= 63) WARNING: Deprecated conditional expansion ":-". See "man unlang" for details expand: %{#User-Name:-0} -> 70 ? Evaluating ("%{#User-Name:-0}" <= 63) -> FALSE ++? if ("%{#User-Name:-0}" <= 63) -> FALSE I got the ":-" expression from unlang(5), which doesn't mention that it's deprecated. I used this expression to specify a default length of 0 since unlang(5) states that %{#attr} returns an empty value if attr isn't present, and I wasn't sure how FreeRADIUS would react to a numeric comparison against an unset value. I'm using: if (User-Name && "%{#User-Name}" <= 63) { instead for now, but is the ":-" expression really deprecated, and is there an alternative equivalent? How will FreeRADIUS react to an unset value in a numeric comparison? john -- John Morrissey _o /\ ---- __o jwm@horde.net _-< \_ / \ ---- < \, www.horde.net/ __(_)/_(_)________/ \_______(_) /_(_)__