ftp.ntua.gr:/ubuntu/dists/groovy-backports/universe/cnf/by-hash/SHA256/?C=M&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] e50458061a738f6ce5c21df24bb3cad03f9f9474f2e02..> 27-Apr-2020 11:37  116   
[   ] 0d508da995e79c1ed5fbccf5fa16028055e28a72cd9dc..> 16-Mar-2021 09:27  188   
[   ] 032d00e8127f0a4e07d07ccf10344a0a9e094a712e81c..> 16-Mar-2021 09:27  192   
[   ] af4703b170e0698b07997b02644b1bcd919c557ab9728..> 16-Mar-2021 09:27  188   
[   ] 417c31b4c4aad52faf0e0a320be3c1055baf432e1af98..> 16-Mar-2021 09:27  192   
[   ] 765c8472a118aaa856a30659d3a3e3100d8111918d308..> 16-Mar-2021 09:27  192   
[   ] a6b956d1e9da2fc9a3e7272fbdcbd6924cea619245468..> 16-Mar-2021 09:27  192
Apache/2.2 Server at ftp.ntua.gr Port 80