Excerpts from Books and Wikipedia
"Da Gama's ships were then met by Muslim traders in all the harbors they visited. They were greeted variously with surprise, suspicion, and hostility. At Mozambique, gunfire was used to ensure safe passage. At Malandi, 50 miles (80 km) north of Mombasa, the sultan supplied the services of a pilot who showed them the rest of the way to India." [Furtado: 1001 Days]