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From: Ken Y. <ke...@nl...> - 2001-02-02 04:14:36
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|The 4.7.17 distribution states, in README-3.html, "It is recommended that |you set a path explicitly to tftpd instead of relying on any defaults. For |example: | |tftp dgram udp wait root /usr/sbin/tcpd in.tftpd /tftpdir | |Would somebody please explain what this means? That's a typical line to be put in /etc/inetd.conf. The meanings of the various fields are explained in the man page for inetd, but the ones of interests are the last three. They say: run tcpd (tcpwrappers), and when a connection comes in, invoke /usr/sbin/in.tftpd (implied directory), with an argument of /tftpdir. Now it is possible to invoke in.tftpd with no arguments and this typically means, accept the compiled-in default top directory of /tftpboot. I do not like this because: 1. I prefer to keep my boot images separate from the exported root trees; they are different kettles of fish. 2. I do not like files in my exported root trees to be available to tftp, e.g. someone might do: tftp /tftpboot/xterminal/etc/passwd and get hold of passwords to crack. Hence my practice is to explicitly tell in.tftpd which is to be the top directory for boot images. Things may vary a bit depending on which tftpd you are using (there are several around). |
