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AppExpert expression „first Friday each month between 1pm and 11pm“

by Natanael Mignon on März 17th, 2013

Customer requirement: during a monthly change and maintenance window, all visitors / users accessing websites / web applications should be redirected to a maintenance page. The timeframe is specified as „first Friday every month between 1pm and 11pm“.

NetScaler solution: create responder action delivering redirect to maintenance page. Create responder policy requesting this action and bind it globally. Use the following expression:

SYS.TIME.WEEKDAY.EQ(5) && SYS.TIME.DAY.LE(7) && SYS.TIME.HOURS.BETWEEN(13,22)

Last but not least: make sure timezone is set correctly, NTP is configured, enabled and working.

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