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TFTP is a simple protocol for transferring files, implemented on top of the UDP/IP protocols using well-known port number 69. TFTP was designed to be small and easy to implement, and therefore it lacks most of the advanced features offered by more robust file transfer protocols. TFTP only reads and writes files from or to a remote server.
The initial software to be run is loaded from a server on the network; for IP networks this is usually done using the Trivial File Transfer Protocol (TFTP). The server from which to load the initial software is usually found by broadcasting a Bootstrap Protocol or Dynamic Host Configuration Protocol (DHCP) request. [2]
There are several methods used to uncap a cable modem, by hardware, software, tricks, alterations, and modifications. One of the most popular modifications is used on Motorola modems (such as the SB3100, SB4100, and SB4200 models); by spoofing the Internet service provider's TFTP server, the modem is made to accept a different configuration file than the one provided by the TFTP server.
dnsmasq is a lightweight, easy to configure DNS forwarder, designed to provide DNS, and optionally DHCP and Trivial File Transfer Protocol (TFTP) services, to a small-scale network. It can serve the names of local machines which are not in the global DNS.
In this mode, the client uses the control connection to send a PASV command to the server and then receives a server IP address and server port number from the server, [9] which the client then uses to open a data connection from an arbitrary client port to the server IP address and server port number received. [11]
The FOG Project (named after Free and Open-source Ghost), is a suite of software tools for deploying disk images of Microsoft Windows and Linux using the Preboot Execution Environment (PXE).
Linux Terminal Server Project (LTSP) is a free and open-source terminal server for Linux that allows many people to simultaneously use the same computer. Applications run on the server with a terminal known as a thin client (also known as an X terminal) handling input and output. Generally, terminals are low-powered, lack a hard disk and are ...
For sites with more than a few devices, it is useful to set up a Trivial File Transfer Protocol (TFTP) server for storing the configuration files and any IOS images for updating. Complex configurations are best created using a text editor (using a site standard template), putting the file on the TFTP server and copying it to the Cisco device.