ftp or lftp with SSL/TLS

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http://linux.ucla.edu/pipermail/linux/2005-January/009741.html

Mlist: [UCLA-LUG]
Date: Jan 4 2005

> Not surprisingly, I can no longer ftp to www.bol.ucla.edu now that
> there's SSL/TSL in place. If I do
>
> $ ftp www.bol.ucla.edu
>
> ...username and password I get
>
> 550 SSL/TLS required on the control channel
> Login failed.
>
> and if I try with lftp I get
> [Connecting...]
> [Receiving data]

try

lftp
set ftp:ssl-force true
connect www.bol.ucla.edu
login <username>

that works with lftp 3.0.11. it should work with releases as early as 2.4.9 (my copy of 2.4.9 isn't linked to openssl so i can't verify, but the man page suggests that it should work).

i've also verified that access works with the standard netkit ftp with the ssl/tls patches applied. check and see if you have ftp-ssl, or if /usr/bin/ftp is linked to libssl.

chris

ftp or lftp with SSL/TLS

> I tried what you suggested and it still didn't work. I don't have
> ftp-ssl; How can I check if my /usr/bin/ftp is linked to libssl? Thanks
> for your help Chris!

ldd /usr/bin/ftp

i would guess that you don't have an ssl-linked ftp client. in my testing, i did have some problems that were cured by forcing the client to use passive mode. that is especially likely to help out if you're trying to ftp from behind a device that is doing nat. you could try

lftp
set ftp:passive-mode true
set ftp:ssl-force true
connect www.bol.ucla.edu
login <username>

chris