Regarding the download command issue

[LUDENGZHEN]

This should be http, the original ftp server is unavailable.

[LUDENGZHEN]

After some investigation, I found that none of the FTP links are accessible. Personally, I think we should change FTP to HTTPS, and change ftp://ftp.wwpdb.org to https://files.rcsb.org. After making these changes, all the links are accessible.

[RyanGarciaLI]

Hi,

We have tested those links, and they are accessible. You may check your network connection or use https instead.
Our accessibility test is as follows,

use wget

wget --spider ftp://ftp.wwpdb.org/pub/pdb/data/status/obsolete.dat

or use curl

curl -I ftp://ftp.wwpdb.org/pub/pdb/data/status/obsolete.dat