> -----Original Message-----
> From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On 
> Behalf Of Tom Duerbusch
> Sent: Monday, August 20, 2007 3:26 PM
> To: [email protected]
> Subject: Re: I'm starting to tailor SLES10 with SP1.
> 
> 
> Ok finally got it.
> 
> The default in SLES10 is "sftp"  i.e. encrypted FTP.
> 
> I tested it for a while....I think I will figure out how to 
> go back to ftp.
> 
> FTP from my PC to Linux with my 100 Mb card in the PC, use to 
> take 90% of the card and perhaps 5% cpu utilization of my IFL.
> 
> SFTP from my PC to Linux takes about 25% of my 100 Mb card in 
> the PC, and uses 45% cpu utilization of my IFL.
> 
> sftp may be good for that data you need to keep secure, but I 
> can do without the overhead when sending most of my stuff. <G>
> 
> Tom Duerbusch
> THD Consulting

Just to be a pain-in-the-seat pendant:

sftp is not really encrpyted ftp. It is ftp-like function in OpenSSH.
Encrypted ftp is ftps and uses TLS(?). From what I recall, OpenSSH does
not use the built in crypto engines on a System z, which is why it takes
so much CPU. I think that ftps can use the crypto engines, if you have
them (but don't rely on my memory for this).

--
John McKown
Senior Systems Programmer
HealthMarkets
Keeping the Promise of Affordable Coverage
Administrative Services Group
Information Technology

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