ftp.ntua.gr:/debian/dists/stretch-backports/contrib/Contents-source.diff/by-hash/SHA256/?C=S&O=D 
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[DIR] Parent Directory                                                                           -   
[   ] 5741e157c861fdaa3467a4910410108b5f6cdbc31b19c84572a314a86e2e220a      09-Dec-2020 10:05   23K
Apache/2.2 Server at ftp.ntua.gr Port 80