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I want to
share files with someone on the Internet but I don't want to reveal my
password...how can I do this?
There are several ways to do this...here are two we
recommend:
1. Use the GSU anonymous FTP
(ftp.gsu.edu).
This method works well if the files are large. GSU has an
anonymous FTP available on ftp.gsu.edu. The /tmp directory on the anonymous
ftp is a world-writable directory that allows you to share files with
someone on the Internet without revealing your password. Likewise, someone
on the Internet can give you a file by putting them in the /tmp directory,
since it is world writable. Files in the /tmp directory will expire in 48
hours. Unfortunately, we have to place a restriction on this directory since
it can be abused by Internet crackers/pirates who use the world writable
directory as their own anonymous ftp to share files with their peers. We
have configured our /tmp directory so that you can "get" and "put" files
there, but can't see them with "dir" or "ls". The files are really
there...you just have to know the filename and share the filename with your
colleagues. This method has proven to be quite effective against detering
the Internet cracker/ pirates since they have to publish the filenames which
poses a problem for them because the files only live for 48 hours and are
scanned periodically by the system administrator.
2. Send the file as an
attachment to your e-mail.
This method works well for files that are not large, because
it can be a more cumbersome technique. If the file is ASCII text, simply
read the file into your e-mail message to your friend. If the file is
binary, you will have to encode the file (using uuencode(1)) so that it will
pass through Internet e-mail gateways without being garbled. If the other
person has access to a MIME (Multi-purpose Internet Mail Extentions)
compatible e-mail package like Pine or Elm, you can send the file as an
attachment.
UUencode Syntax on UNIX
{0}:panther:/gsu99/stu/70/gs00xxx/> uuencode proposal.wpd proposal.wpd > proposal.uue
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uuencode |
proposal.wpd |
proposal.wpd |
> |
proposal.uue |
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This is the UNIX command to
encode a binary file into uuencoded text. |
This is the binary input
file. If the file is PC or Mac-based such as the WordPerfect file
above, you will have to upload it to your personal space on your UNIX
account or to the /tmp directory. |
This is the name of the
binary output file that will be produced after the uuencoded file is
decoded by the uudecode command on UNIX. |
The greater than sign sends
the data from the uuencode command to the target file proposal.uue. |
The is the encoded file
which is in text or ascii form. You can take this file and read it
into an e-mail message. The e-mail message will have to be decoded
back to its binary form (proposal.wpd) by the receiver. In many cases,
if the receiver's e-mail package supports uuencode/decode, the binary
file will appear as an attachment. |
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