What is port 53used for?

The correct answer is TCP- Transfers; UDP- Queries. The DNS uses TCP Port 53 for zone transfers, for maintaining coherence between the DNS database and the server. The UDP protocol is used when a client sends a query to the DNS server.

What is the use of port 8081?

Port 8081 Details. Hyper Text Transfer Protocol (HTTP) – alternative ports used for web traffic. See also TCP ports 80, 81, 8080. Dreambox 8000 also uses port 8081 (TCP/UDP).

Is port 6400 TCP or UDP?

Port 6400 Details

Port(s)	Protocol	Details
6400	tcp	Seagate Crystal Reports
6400	tcp	info-aps
6400	tcp,udp	info-aps
6400	tcp,udp	Business Objects CMS contact port, registered 2008-05-05

Is port 8118 a TCP or UDP?

Port 8118 Details

Port(s)	Protocol	Details
8118	tcp,udp	IANA registered for: Privoxy HTTP proxy
8118	tcp	Privoxy – advertisement-filtering Web proxy (official)
8118	tcp	Privoxy, www.privoxy.org
8118	tcp,udp	Privoxy HTTP proxy, registered 2002-06

Why is port 53 used?

DNS uses Port 53 which is nearly always open on systems, firewalls, and clients to transmit DNS queries. Rather than the more familiar Transmission Control Protocol (TCP) these queries use User Datagram Protocol (UDP) because of its low-latency, bandwidth and resource usage compared TCP-equivalent queries.

Is port 8100 UDP or TCP?

Port 8100 Details

Port(s)	Protocol	Details
8100	tcp	Console Gateway License Verification Back streets trojan IANA registered for: Xprint Server (TCP/UDP)
8100	tcp	Back streets
8100	tcp,udp	Xprint Server

Should I open port 80?

No port 80 required. If you have a firewall and proxy, “80” is subjective. It’s HTTP traffic so it should be open for web browsing. If you are on a network that has 80 locked down through a proxy, then that’s a while other thing.

Is port 88 TCP or UDP?

Service Name and Transport Protocol Port Number Registry

Service Name	Port Number	Transport Protocol
kerberos	88	udp
mumps	188	tcp
mumps	188	udp
	288-307