Zhanglab forum

Posted: **Fri May 14, 2021 8:53 pm**

Dear Zhang Lab,

I’ve registered and downloaded the I-TASSER suite. As I follow the instructions for downloading the libraries, I ran into an issue where the connection to the server is refused. Briefly,

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./download_lib.pl -libdir ~/ITLIB

would error out on line 102 (System call failed). I checked the code and manually ran the

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wget -o log -c ftp://zhanglab.ccmb.med.umich.edu/download/nr.tar.gz

command, which resulted in an error log:

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--2021-05-14 15:41:00--  ftp://zhanglab.ccmb.med.umich.edu/download/nr.tar.gz
           => ‘nr.tar.gz’
Resolving zhanglab.ccmb.med.umich.edu (zhanglab.ccmb.med.umich.edu)... 141.213.137.249
Connecting to zhanglab.ccmb.med.umich.edu (zhanglab.ccmb.med.umich.edu)|141.213.137.249|:21... failed: Connection refused.

Earlier I was trying to download the nr library for PSSpred and encountered a similar problem, where clicking the download link on the website would ask for user name and password, and no matter whether I enter my email address with the I-TASSER server or download password, the ftp server would refuse to connect.

Thanks for help!

Posted: **Sun May 16, 2021 4:50 am**

Please change line 102 to "system("wget -o log -c http://zhanglab.ccmb.med.umich.edu/library/nr.tar.gz") == 0 or die "System call failed: $!"; "

Posted: **Mon May 17, 2021 10:02 pm**

that worked! thanks

Zhanglab forum

ftp server refuse connection (for download_lib.pl)

ftp server refuse connection (for download_lib.pl)

Re: ftp server refuse connection (for download_lib.pl)

Re: ftp server refuse connection (for download_lib.pl)