zfs send/recv invalid data

Larry Rosenman ler at lerctr.org
Wed Mar 6 23:16:24 UTC 2013


On 2013-03-06 17:00, Steven Hartland wrote:
> ----- Original Message ----- From: "Larry Rosenman" <ler at lerctr.org>
>> # cat send.stream | ssh root at home openssl md5
>> (stdin)= 9cd1d73ea8411f1c222bc90e7bea3d33
>> # uname -a
>> FreeBSD thebighonker.lerctr.org 8.3-STABLE FreeBSD 8.3-STABLE #54 
>> r247820: Mon Mar  4 18:08:11 CST 2013     
>> root at thebighonker.lerctr.org:/usr/obj/usr/src/sys/THEBIGHONKER  amd64
>> #
>> # exec csh
>> root at borg:/home/ler # pwd
>> /home/ler
>> root at borg:/home/ler # ssh tbh "cat 
>> /home/ler/public_html/ZFS_RECV/send.stream | ssh root at home.lerctr.org 
>> openssl md5"
>> (stdin)= 9cd1d73ea8411f1c222bc90e7bea3d33
>> root at borg:/home/ler # uname -a
>> FreeBSD borg.lerctr.org 10.0-CURRENT FreeBSD 10.0-CURRENT #124 
>> r247826: Mon Mar  4 19:59:08 CST 2013     
>> root at borg.lerctr.org:/usr/obj/usr/src/sys/BORG-DTRACE  amd64
>> root at borg:/home/ler #
> 
> When you run a command from ssh it will run as the target users shell
> so for csh if there is something bad in .cshrc or iirc .profile then
> you may get something output purely by logging in.
> 
> So ensure you shell config's for the user on the target machine are
> clean.
> 
> You can confirm this by comparing the output from the following
> two commands run from the sending machine:-
> md5 send.stream
> cat send.stream | ssh root at home.lerctr.org "cat" |md5
> 
> If these two commands produce different md5's then the login
> shell for root on home.lerctr.org is outputing something
> even when there is no terminal.
> 
> You should be able to see what the shell is outputting using:-
> echo -n '' | ssh root at home.lerctr.org "cat" > 1.log
> 
> After running this 1.log should be 0 bytes if its not your
> shell is definitely your problem and I'd start by looking
> at .cshrc and .profile for this user, or even the globals
> for these in /etc/
> 
I've done that, and get identical md5's.....

I'm at a loss.


-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640 (c)     E-Mail: ler at lerctr.org
US Mail: 430 Valona Loop, Round Rock, TX 78681-3893


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