iptables and dump/rmt
Mon, 28 Jan 2002 09:48:38 +0100 (W. Europe Standard Time)
i'v found a problem using iptables and dump/rmt which I cannot solve, I
even found nothing in the NG's and in the netfilter mailing list.
I use a iptables FW with kernel 2.4.10 and iptables v1.2.2
I have a webserver behind the firewall and a backup server outside the
firewall. The webserver is backing up its local data through the
firewall to the backup server using dump and rmt.
Here is what I've done:
I have another webserver not behind the firewall. This server has no
problems to do backups.
When I connect from the webserver behind the fw to the backup server
using rsh or rlogin, everything works well. AFAIK, dump/rmt also uses
the rtools to do remote backup. The FW does routing and SNAT pretty
But when i use dump using the same account, I get this error message
DUMP: poll: protocol failure in circuit setup
DUMP: login to merkur.vsonline.ch as backup failed.
and /var/log/messages on the backup server reports:
XINETD[pid] START: shell pid=<pid> from=<firewall's ip>
rshd[pid]: connect second port: Connection refused
The firewall log shows nothing.
Any help will greatfully be appreciated!