ftp.ntua.gr:/mirror/ubuntu/dists/groovy-updates/restricted/binary-amd64/by-hash/SHA256/?C=M&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] 8f59dc580ec9e4b003605f88259fb11aeb52d7b8f6ab1..> 11-May-2021 20:34  230K  
[   ] 0dec718fa66ae2574c6e5ab2c5fbdd41a227583573b3b..> 11-May-2021 20:34  172K  
[   ] 34e85b1cb7873191ca9dd5ce6afda14d939aceacf163a..> 24-Apr-2020 16:54  110
Apache/2.2 Server at ftp.ntua.gr Port 80