选项参考 OPTIONS -l Run the server in standalone (listen) mode, rather than run from inetd. In listen mode, the -t option is ignored, and the -a option can be used to specify a specific local address or port to listen to.
-a [address][:port] Specify a specific address and port to listen to when called with the -l option. The default is to listen to the tftp port specified in /etc/services on all local addresses. listen 的 ip address 和 Port -c Allow new files to be created. By default, tftpd will only allow upload of files that already exist. Files are created with default permissions allowing anyone to read or write them, unless the -p or -U options are specified.
-s (决定tftp根目录)Change root directory on startup. This means the remote host does not need to pass along the directory as part of the trans- fer, and may add security. When -s is specified, exactly one directory should be specified on the command line. The use of this option is recommended for security as well as compatibility with some boot ROMs which cannot be easily made to include a directory name in its request. 重启OK
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