Fetching details from the dictionary...
inside and outside; interior and exterior
inside and outside the country; home and abroad; domestic and foreign
around; about; approximately
会社の内外で評判がいい。
They have a good reputation inside and out.
国の内外から支援が届いた。
Support came from inside and outside the country.
内外の意見を聞いて決めた。
I decided after hearing opinions from both sides.