What is the use of port 1?
What is the use of port 1?
Side note: UDP port 1 uses the Datagram Protocol, a communications protocol for the Internet network layer, transport layer, and session layer. This protocol when used over PORT 1 makes possible the transmission of a datagram message from one computer to an application running in another computer.
Is port 123 secure?
All packets to/from TCP port 123 should be safe to filter since NTP by design only uses UDP.
Is port 123 a TCP or UDP?
Port 123 Details
| Port(s) | Protocol | Service |
|---|---|---|
| 123 | udp | |
| 123 | tcp | trojan |
| 123 | tcp | NetController |
| 123 | tcp,udp | applications |
Can port 1 use?
Port 1 Details Kamikaze, IRC_trojan, TROJ_Backdoor, W32/Cheval. gen, coded in Delphi 3, 06.1998). It might also use ports 1/udp, 5000, 5001, 30303, 50505, 60000 and 65000. Scans against this port are commonly used to test if a machine runs SGI Irix (as SGI is the only system that typically has this enabled).
Is port 1 TCP or UDP?
Service Name and Transport Protocol Port Number Registry
| Service Name | Port Number | Transport Protocol |
|---|---|---|
| 0 | tcp | |
| 0 | udp | |
| tcpmux | 1 | tcp |
| tcpmux | 1 | udp |
What is port 123 used for?
Well-known ports
| Port | TCP | Description |
|---|---|---|
| 117 | Yes | UUCP Mapping Project (path service) |
| 118 | Yes | Structured Query Language (SQL) Services |
| 119 | Yes | Network News Transfer Protocol (NNTP), retrieval of newsgroup messages |
| 123 | Assigned | Network Time Protocol (NTP), used for time synchronization |
What are X11 programs?
The X Window System (X11, or simply X) is a windowing system for bitmap displays, common on Unix-like operating systems. X provides the basic framework for a GUI environment: drawing and moving windows on the display device and interacting with a mouse and keyboard.
