Re: [rdiff-backup-users] SSH time out, how to remedy? [Scanned] (fwd)

[Pieter Donche]

I tried with, on my target machine (macos):
# vi /etc/ssh/sshd_config
and set (instead of sending no messages)
ClientAliveInterval 15
then did a
# /etc/rc.d/sshd reload

and tried again:
address@hidden ~]$ /usr/local/bin/rdiff-backup macos-backup::/var 
/home/backup/macos/var
Previous backup seems to have failed, regressing destination now.
but after 3-4 minutes I get:
Read from remote host macos.cmi.ua.ac.be: Connection reset by peer
Fatal Error: Lost connection to the remote system

(the same error as before)
what is wrong and how to remedy ?

---------- Forwarded message ----------
Date: Wed, 3 Jun 2009 11:00:45 +0200 (CEST)
From: Pieter Donche <address@hidden>
To: Jason Spalding <address@hidden>
Subject: Re: [rdiff-backup-users] SSH time out, how to remedy? [Scanned]

Hi,
both on the backup and target machine my /etc/ssh/sshd_config has:
#TCPKeepAlive yes
#ClientAliveInterval 0
#ClientAliveCountMax 3

The manual says TCPKeepAlive is default yes. So I don't understand  why the 
connection still dies ?

If I want to use ClientAliveInterval and ClientAliveCountMax, these would have 
to be changed on the target machine? would ClientAliveInterval 15
ClientAliveCountMax 3
be a reasonable choice? this would send out every 15 seconds after no data has 
been received
from the client a request of a response from the client and try that
3 times?

Is that correct?

Can these settings for the ssh connection used by rdiff-backup been set
somewhere on the command line that I have in targetmachine's 
/root/.ssh/authorized_keys2 ?
now it has:
command="rdiff-backup --server --restrict-read-only 
/",from="<mybackupmachine>",no-port-forwarding,no-X11-forwarding,no-pty ssh-rsa 
AA   ... vQ== backup@<mybackupmachine>

(this would leave the 'general' settings of sshd_config intact)


On Wed, 3 Jun 2009, Jason Spalding wrote:

> Do you have TCPKeepAlive turned on in your /etc/ssh/sshd_config (or
> appropriate config file)? And if so, have you toyed with the
> ClientAliveInterval and ClientAliveCountMax intervals? See
> http://www.openssh.com/faq.html#2.12 for a quick reference.
>
> On 3/6/09 4:43 PM, "Pieter Donche" <address@hidden> wrote:
>
> > If I initiate a rdiff-backup at the command line from my backup server:
> >
> > address@hidden ~]$ /usr/local/bin/rdiff-backup macos-backup::/var
> > /home/backup/ma
> > cos/var
> > Previous backup seems to have failed, regressing destination now.
> > Read from remote host macos.cmi.ua.ac.be: Connection reset by peer
> > Fatal Error: Lost connection to the remote system
> >
> > Seems the SSH connection gets lost..
> >
> > How can one remedy to this (rdiff-backup paramters, ssh parameters ???)