During the war he'd carried a pistol for protection in certain ports.
It may try to disable the firewall or add rules to open certain ports or allow certain connections.
Trade in fact prospered during this period, and though relations and trade were restricted to certain ports, the country was far from closed.
Books are on offer at a fraction of their retail value, while in certain ports, books are also donated.
The three nations and the pirates fight over the control of certain ports.
Because certain application-level protocols use certain ports, network administrators can manipulate traffic to suit particular requirements.
The proposed filter only monitors certain ports specific to conveying web traffic.
I therefore propose that access to certain ports located in sensitive areas should be restricted without delay to double-hulled vessels.
Fishermen do not like being told you can only land in certain ports.
There was no question but what the Pandora had sailed from a certain port on a certain date.