Pursuant to the Code of Civil Proceedure Section 1162, a notice shall be served by:
1. By delivering a copy to the tenant personally; or,
2. If he be absent from his place of residence, and from his usual place of business, by leaving a copy with some person of suitable age and discretion at either place, and sending a copy through the mail addressed to the tenant at his place of residence; or,
3. If such place of residence and business can not be ascertained, or a person of suitable age or discretion there can not be found, then by affixing a copy in a conspicuous place on the property, and also delivering a copy to a person there residing, if such person can be found; and also sending a copy through the mail addressed to the tenant at the place where the property is situated. Service upon a subtenant may be made in the same manner.
4. If the notice being served is a 30 day notice to quit, it may be served solely by certifed mail.