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I want to blast the sequences against my own database... So I am using standalone blast utility. while using update_blastdb.pl I have come accross the error of "Failed to connect to ftp.ncbi.nlm.nih.gov: Invalid argument".
Command: perl update_blastdb.pl --passive refseq_rna.00
Error: Failed to connect to ftp.ncbi.nlm.nih.gov: Invalid argument
why this error?