script for determining space consumed by increments
Spicer, Kevin
Kevin.Spicer@bmrb.co.uk
Sun, 12 May 2002 08:29:24 +0100
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>>-----Original Message-----
>>From: Ben Escoto [mailto:bescoto@stanford.edu]
>> Are you running ssh with compression enabled (-C)? If bandwidth
>>is your problem that should really speed things up...
I'm not, but I kinda assumed that would be the default - which thinking
about it was plain stupid on my part (as I changed the remote schema!)
I broke my wrapper script last night (doh!) so I'll leave it a day to get a
normal sized backup again then I'll try changing it & see what happens.
I'm also thinking about using a different cipher (arcfour is supposed to be
the fastest). I'm not sure whether this has any impact on security, but I'm
only using it over a leased line, not the net - so I'm not that worried
about the encryption strength. So my remote schema is looking like being...
ssh -C -2 -c arcfour %s rdiff-backup --server
(protocol 2 is required for ciphers other than des),aes128-cbc
Incidentally ssh now lets you specify a list of ciphers in order of priority
(-c arcfour,blowfish-cbc,aes128-cbc or something like that - don't take any
notice of the order in my list!) now theres a possibility for another
feature, maybe a --with-fastest-cipher or --with-most-secure-cipher which
switches between remote schemas with an appropriate cipher list (okay you
could do this with --remote-schema but this way is more user friendly.
Sorry Ben I know this my second feature suggestion in 7 hours (and I've been
asleep for 5 of those!) - I'll try to pace myself a bit more :)
I am inclined to agree with Dean that my main problem is likely to be
Solaris2.6 (which I'm stuck with, like it or not).
I'll post again when I've changed the remote-schema and let you know what
difference it makes
BMRB International
http://www.bmrb.co.uk +44 (0)20 8566 5000
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<P><FONT SIZE=3D2>>>-----Original Message-----</FONT>
<BR><FONT SIZE=3D2>>>From: Ben Escoto [<A =
HREF=3D"mailto:bescoto@stanford.edu">mailto:bescoto@stanford.edu</A>]</F=
ONT>
</P>
<BR>
<P><FONT SIZE=3D2>>> Are you running ssh with =
compression enabled (-C)? If bandwidth</FONT>
<BR><FONT SIZE=3D2>>>is your problem that should really speed =
things up...</FONT>
</P>
<P><FONT SIZE=3D2>I'm not, but I kinda assumed that would be the =
default - which thinking about it was plain stupid on my part (as I =
changed the remote schema!)</FONT></P>
<P><FONT SIZE=3D2>I broke my wrapper script last night (doh!) so I'll =
leave it a day to get a normal sized backup again then I'll try =
changing it & see what happens.</FONT></P>
<P><FONT SIZE=3D2>I'm also thinking about using a different cipher =
(arcfour is supposed to be the fastest). I'm not sure whether =
this has any impact on security, but I'm only using it over a leased =
line, not the net - so I'm not that worried about the encryption =
strength. So my remote schema is looking like being...</FONT></P>
<P><FONT SIZE=3D2>ssh -C -2 -c arcfour %s rdiff-backup --server</FONT>
<BR><FONT SIZE=3D2>(protocol 2 is required for ciphers other than =
des),aes128-cbc</FONT>
<BR><FONT SIZE=3D2>Incidentally ssh now lets you specify a list of =
ciphers in order of priority (-c arcfour,blowfish-cbc,aes128-cbc or =
something like that - don't take any notice of the order in my list!) =
now theres a possibility for another feature, maybe a =
--with-fastest-cipher or --with-most-secure-cipher which switches =
between remote schemas with an appropriate cipher list (okay you could =
do this with --remote-schema but this way is more user =
friendly.</FONT></P>
<P><FONT SIZE=3D2>Sorry Ben I know this my second feature suggestion in =
7 hours (and I've been asleep for 5 of those!) - I'll try to pace =
myself a bit more :)</FONT></P>
<P><FONT SIZE=3D2>I am inclined to agree with Dean that my main problem =
is likely to be Solaris2.6 (which I'm stuck with, like it or =
not).</FONT></P>
<P><FONT SIZE=3D2>I'll post again when I've changed the remote-schema =
and let you know what difference it makes</FONT>
</P>
<BR>
<P><FONT SIZE=3D2>BMRB International </FONT>
<BR><FONT SIZE=3D2><A HREF=3D"http://www.bmrb.co.uk" =
TARGET=3D"_blank">http://www.bmrb.co.uk</A> +44 (0)20 8566 5000 </FONT>
</P>
<P><FONT =
SIZE=3D2>____________________________________________________________ =
</FONT>
<BR><FONT SIZE=3D2>This message (and any attachment) is intended only =
for the recipient and may contain confidential and/or privileged =
material. If you have received this in error, please contact the sender =
and delete this message immediately. Disclosure, copying or other =
action taken in respect of this email or in reliance on it is =
prohibited. BMRB International Limited accepts no liability in relation =
to any personal emails, or content of any email which does not directly =
relate to our business.</FONT></P>
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