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netcat (often abbreviated to nc) is a computer networking utility for reading from and writing to network connections using TCP or UDP.The command is designed to be a dependable back-end that can be used directly or easily driven by other programs and scripts.
Serial port, Telnet, rlogin, SSH, and raw socket connection: Windows, macOS, ReactOS, Linux, Symbian S60 [7] PuTTY is a free and open-source terminal emulator, serial console and file transfer application. Qmodem Pro: Character: Serial port: Windows: Terminal emulator for MS-DOS and WIndows 95 (discontinued since 1997) Red Ryder: Character ...
It uses a command-line interface consisting of a small number of simple commands, and uses iptables for configuration. UFW is available by default in all Ubuntu installations since 8.04 LTS. [1] UFW has been available by default in all Debian installations since 10.
The new implementation is currently only used in the installer, but is intended to eventually replace the original entirely. Both implementations make use of the same protocol for communication between the debconf front-end and the client code ("confmodule"); this is a simple line-based protocol similar to common Internet protocols.
The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...
firewalld's command syntax is similar to but more verbose than other iptables front-ends like Ubuntu's Uncomplicated Firewall (ufw). [8] The command-line interface allows managing firewall rulesets for protocol, ports, source and destination; or predefined services by name.
OpenPorts.se, originally announced as ports.openbsd.nu in 2006, [9] was a custom-written web-site that does its own parsing of the ports tree structure and the updates, and has the functionality of tracking changes of a given port, having a shortcoming of not supporting some of the more complicated Makefile logic, and thus missing some 15% of ...
The Fink project is an effort to port and package open-source Unix programs to macOS. Fink uses dpkg and APT (Debian's package management system), as well as its own frontend program, fink (which is implemented as a set of Perl modules).