Need to use ftps (NOT sftp) on RHAS4

MacIntyre, Ross A R.A.Macintyre at hw.ac.uk
Fri Aug 21 15:09:25 UTC 2009


Thanks for your time on this Ben. Much appreciated.
OK so it's not suitable for what I wanted to do (sorry if I didn't make
this clear in the original posting).
Ah well it was interesting to have a look at curl, and yes it seems
quite nice to use.

Looks like I will go back and look at lftp which says it supports ftps,
and this does do mirroring.

Cheers and thanks again,

Ross

> -----Original Message-----
> From: redhat-list-bounces at redhat.com [mailto:redhat-list-
> bounces at redhat.com] On Behalf Of Ben
> Sent: 21 August 2009 15:57
> To: General Red Hat Linux discussion list
> Subject: RE: Need to use ftps (NOT sftp) on RHAS4
> 
> On Fri, 21 Aug 2009, MacIntyre, Ross A wrote:
> 
> > I've had a quick look at curl but haven't been able to see any
> examples of
> > what I am trying to do.
> 
> Hmmm.  Google seems to have a fair few easily accessible if you search
> on
> "curl ftps example".
> 
> 
> > If you don't mind, would you might showing me a script that will
> simply
> > mirror a folder/directory from an ftp server.
> 
> Ah, now, you didn't mention that I don't think.  I assumed it was
> perhaps a
> single file.
> 
> >From the curl FAQ:
> 
> "1.3 What is cURL not?
>   Curl is *not* a wget clone even though that is a very common
> misconception.
>   Never, during curl's development, have we intended curl to replace
> wget or
>   compete on its market. Curl is targeted at single-shot file
> transfers.
>   -
>   Curl is not a web site mirroring program. If you wanna use curl to
> mirror
>   something: fine, go ahead and write a script that wraps around curl
> to make
>   it reality (like curlmirror.pl does).
>   -
>   Curl is not an FTP site mirroring program. Sure, get and send FTP
> with curl
>   but if you want systematic and sequential behavior you should write
a
>   script (or write a new program that interfaces libcurl) and do it."
> 
> In other words.  You may be using the wrong tool for the job
(apologies
> if
> so).  For simple gets:
> 
> curl ftps://server.com/<dir>/<file> -o <file> --user <user:pass> # or
> curl --ftp-ssl ftp://server.com/<dir>/<file> -o <file> --user
> <user:pass>
> 
> Unfortunately it looks like what you really need is wget.  Only that
> doesn't
> support FTPS.  Maybe a peruse of
http://curl.haxx.se/docs/programs.html
> will
> give you some ideas.  Liberal use of the "-o" and --create-dirs"
option
> (see
> man curl) may also help.
> 
> 
> > Also if you could show me how to specify it to use ftps rather than
> ftp I
> > would appreciate it. Thanks in advance,
> 
> As the man page says use "ftps://" or "--ftp-ssl ftp://".
> 
> Note from the curl man page:
> 
> "curl performs SSL certificate verification by default, using a
> "bundle" of
> Certificate Authority (CA) public keys (CA certs). The default bundle
> is
> named curl-ca-bundle.crt; you can specify an alternate file using the
> --cacert option. If this HTTPS server uses a certificate signed by a
CA
> represented in the bundle, the certificate verification probably
failed
> due
> to a problem with the certificate (it might be expired, or the name
> might
> not match the domain name in the URL). If you'd like to turn off
curl's
> verification of the certificate, use the -k (or --insecure) option."
> 
> This kind of problem happens when your server's certificate is self
> signed
> too.
> 
> Good luck.
> 
> Ben
> --
> Unix Support, MISD, University of Cambridge, England
> Plugger of wire, typer of keyboard, imparter of Clue
>          Life Is Short.          It's All Good.
> 
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