The free Swiss File Knife provides an Instant HTTP or FTP Server, allowing file transfer even if everything else fails.

How to get SFK up and running anywhere:

   Download the executables for Windows, Linux/lib6 or Linux/lib5

   By browser:

   -  http://stahlworks.com/dev/swiss-file-knife.html

      then click on one of the top links to either download
      binaries instantly, or look further on sourceforge:

   -  http://sourceforge.net/projects/swissfileknife/

   OR

   On a Linux or Mac command line console, use one of these:

      Instant binaries:

      -  wget http://stahlworks.com/sfkux         (Intel Linux lib6)
      -  wget http://stahlworks.com/sfkuxold      (Intel Linux lib5)
      -  wget http://stahlworks.com/sfkarm        (ARM Linux)
      -  curl -o sfk http://stahlworks.com/sfkmac      (Mac i686)

   After download, follow the "prepare" steps below before use.
   If files downloaded by wget do not work, then possibly the wget tool
   destroyed the binary as it cannot handle the missing file extension.
   In that case, try a wget on one of the full .exe paths:

   wget http://stahlworks.com/dev/sfk/sfk-linux-64.exe       (Intel lib6)
   wget http://stahlworks.com/dev/sfk/sfk-linux-lib5.exe  (Intel lib5)
   wget http://stahlworks.com/dev/sfk/sfk-arm.exe         (ARM Linux)
   wget http://stahlworks.com/dev/sfk/sfk-mac-64.exe    (Mac i686)
   wget http://stahlworks.com/dev/sfk/sfk-mac-ppc.exe     (Mac PowerPC)

How to prepare the SFK binary under Linux/Mac:

   -  after download, you should rename the executable to "sfk"
      to save typing effort, for example

         mv sfkux sfk

      then allow execution by setting the 'x' attribute

         chmod +x sfk

      then simply type

         ./sfk

      to get it running (the "./" is often needed as
      the PATH may not contain the current directory ".").               

SFK Instant HTTP Server for easy file exchange

      -  on the machine where you have downloaded SFK, type

         sfk httpserv -port=9090

      -  then, on the target machine, try to open a web browser
         and to access

            http://othermachine:9090/

         and you should see a listing of all files of the current
         directory on the other machine (where you ran sfk).

      -  if no web browser is available, try a direct

            wget http://othermachine:9090/yourfile

         with "yourfile" being the single file you want to transfer.

   If that fails (no browser, no gui, no wget command),
   check if there exists an "ftp" command on the target.
   If so, try:

SFK Instant FTP Server for easy file exchange

      -  on the machine where you have SFK already, type

         sfk ftpserv

      -  then, on the target machine, type

            ftp othermachine

         and if the login succeeds, try

            dir
            bin
            get yourfile

      -  if ftp connections fail to work, check if the "ftp"
         client on the target accepts the command

            passive

         then try to "get" again (ftp creates a new connection
         per file download, which is often blocked by firewalls.
         the passive command changes the way in which those
         connections are created.)