TFTP

From SysadminWiki

tftpd is UDP-based file transfer protocol normally used to allow computers to boot from the network. It doesn't need to be enabled on grid nodes but on the server you are using as boot server. It doesn't have any security: it distributes files to any client that asks for it from any directory on the computer where it is running unless told differently. To increase security you can:

• restrict the host access to it with using TCP_Wrapper /etc/hosts.allow
• run it as user nobody
• restrict to one directory from where it is possible to get and put files

All this can be set in the Xinetd /etc/xinetd.d/tftpd configuration file.