2049
nfs
TCP and UDP · 0x0801
Port 2049 — nfs
Files
Port 2049 carries Network File System over TCP and UDP. Above 1023, so an ordinary user can open it.
1024–49151. Meant to be applied for, though some numbers here are custom by habit.
Where it sits in 65535
A port number is 16 bits, so it stops at 65535. The narrow band at the left is everything up to 1023.
065535
- Service
- Network File System (nfs)
- Kind
- Files
- Protocol
- TCP and UDP
- Range
- Registered
- Root needed
- No
- Hexadecimal
- 0x0801
- Binary
- 0000100000000001
- Two bytes
- 8 · 1
Same kind
Moving files about, or sharing a disk.
Ports next to it
How to read this
- A port number is 16 bits, so it runs 0 to 65535. There is no port 65536.
- Opening anything at or below 1023 needs root on Unix.
- Plain and encrypted often live on different numbers — 80 and 443, for one.
- Numbers like 3000 and 8080 were never registered; those are marked as custom.
Frequently asked questions
Q. What is port 2049 used for?
Network File System (nfs) uses it, over both TCP and UDP.
Q. Does opening port 2049 need root?
No. It is above 1023, so an ordinary user can open it.
Q. Which range does port 2049 fall in?
Registered (1024–49151). In hex it is 0x0801.
Q. Does port 2049 have a twin?
Not a separate one. It either was encrypted from the start or negotiates TLS on the same number.