Hello, It seems that https://www.prelude-ids.org doesn't play well with the ftp(1). I normally get an 'improper response':
$ ftp -v -d https://www.prelude-ids.org/attachments/download/241/libprelude-1.0.1.tar.gz host www.prelude-ids.org, port (null), path attachments/download/241/libprelude-1.0.1.tar.gz, save as libprelude-1.0.1.tar.gz. Trying 88.190.33.136... Requesting https://www.prelude-ids.org/attachments/download/241/libprelude-1.0.1.tar.gz received 'f' ftp: Improper response from www.prelude-ids.org but sometimes the error is different : $ ftp -v -d https://www.prelude-ids.org/attachments/download/241/libprelude-1.0.1.tar.gz host www.prelude-ids.org, port (null), path attachments/download/241/libprelude-1.0.1.tar.gz, save as libprelude-1.0.1.tar.gz. Trying 88.190.33.136... Requesting https://www.prelude-ids.org/attachments/download/241/libprelude-1.0.1.tar.gz received ' User-Agent: OpenBSD ftp ' ftp: Error retrieving file: OpenBSD ftp All the above are with OpenBSD 5.2 but with 4.8 I get more garbage: $ ftp -v -d https://www.prelude-ids.org/attachments/download/241/libprelude-1.0.1.tar.gz host www.prelude-ids.org, port (null), path attachments/download/241/libprelude-1.0.1.tar.gz, save as libprelude-1.0.1.tar.gz. Trying 88.190.33.136... Requesting https://www.prelude-ids.org/attachments/download/241/libprelude-1.0.1.tar.gz received '-CZr���6Vgy����-Hd���(=Sj��� 'Ffw��� #=Xt���$8Mcz���7Vv����3Mh���!4H]s��#=Xt���$8Mcz���7Vv0`0+0�,http://crt.comodoca.com/EssentialSSLCA_2.crt0+0�http://ocsp.comodoca.com' $ er response from www.prelude-ids.org