Hello Adam, When using the SSH proxy command this following message "Fatal Error: Truncated header string (problem probably originated remotely)" is generated by SSH. Usually this gets printed when the box doesn't allow ssh tunnel.
On the bastion server, You should review your /etc/ssh/sshd_config and make sure you have "AllowTcpForwarding yes". After that, you may create a file in ~/.ssh/config Host <hostname-behind-bastion> ProxyCommand ssh -q -A -x <bastion-hostname> -W <ip-behind-bastion>:22 I invite you to test the configuration by calling ssh manually first, to make sure the ssh configuration is working, before trying to test it with rdiff-backup. On Fri, Jun 25, 2021 at 7:36 AM Frank Crawford <fr...@crawford.emu.id.au> wrote: > Adam, > > This should work with any issue, but can you share the actual > ProxyCommand you are using. > > Also, what do you get if you log in yourself directly? > > And you may want to up the verbosity of rdiff-backup output (e.g. -v5) > to see what is being returned. > > Regards > Frank > > On Thu, 2021-06-24 at 17:59 +0100, Adam Weremczuk wrote: > > Hi all, > > > > I run old rdiff-backup 1.2.8 on a remote server and one local behind > > an > > ssh bastion. > > > > Direct backup over ssh work fine but I struggle hopping over > > intermediary box. All 3 run Debian. > > > > I've tried ProxyCommand with and without netcat but each time I'm > > getting: > > > > --------------------------------------------------------------------- > > ---------------------------------- > > > > Fatal Error: Truncated header string (problem probably originated > > remotely) > > > > Couldn't start up the remote connection by executing > > > > ssh -C backup rdiff-backup --server > > > > Remember that, under the default settings, rdiff-backup must be > > installed in the PATH on the remote system. See the man page for > > more > > information on this. This message may also be displayed if the > > remote > > version of rdiff-backup is quite different from the local version > > (1.2.8). > > > > --------------------------------------------------------------------- > > ---------------------------------- > > > > I haven't been able to find any recipes online and I'm assuming it's > > feasible. > > > > Could anyone help? > > > > Regards, > > Adam > > > > > -- IKUS Software inc. https://www.ikus-soft.com/ 514-971-6442 130 rue Doris St-Colomban, QC J5K 1T9
