Conn. Practice Book § 25-28

(a) On a complaint for dissolution of marriage

or civil union, legal separation, or annulment, or

on an application for custody or visitation, when

the adverse party resides out of or is absent from

the state or the whereabouts of the adverse party

are unknown to the plaintiff or the applicant, any

judge or clerk of the court may make such order

of notice as he or she deems reasonable. If such

notice is by publication, it shall not include the

automatic orders set forth in Section 25-5, but

shall instead include a statement that automatic

orders have issued in the case pursuant to Section

25-5 and that such orders are set forth in the

complaint or the application on file with the court.

Such notice having been given and proved, the

judicial authority may hear the complaint or the

application if it finds that the adverse party has

actually received notice that the complaint or

the application is pending. If actual notice is not

proved, the judicial authority in its discretion may

hear the case or continue it for compliance with

such further order of notice as it may direct.

(b) With regard to any postjudgment motion for

modification or for contempt or any other motion

requiring an order of notice, where the adverse

party resides out of or is absent from the state

any judge or clerk of the court may make such

order of notice as he or she deems reasonable.

Such notice having been given and proved, the

court may hear the motion if it finds that the

adverse party has actually received notice that

the motion is pending.