Tru64 5.1A, IPv6, openssh, and tcp_wrappers
From: Senn, Bruce (sennb_at_union.edu)
Date: 10/15/04
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Date: Fri, 15 Oct 2004 14:54:02 -0400 To: tru64-unix-managers@ornl.gov
I have upgraded our test server, an Alpha Personal Workstation 600au, to
Tru64 5.1A. I am now having problems with ssh connections. The first
error message is:
Oct 13 14:58:35 testsvr sshd[510671]: refused connect from 0.0.0.0
As a workaround I added 0.0.0.0 the hosts.allow. Connections succeed
with the following entry in auth.log.
Oct 13 15:09:52 testsvr sshd[517969]: Accepted password for username
from ::ffff:149.106.nn.nn port 4498 ssh2
My theory is that sshd is getting the IPv6 address, interpreting some
part of it to be 0.0.0.0, and trying to validate that in hosts.allow.
This does not happen on my server running Tru64 4.0D.
Here is some additional version information.
Openssl 3.4.p1
Tcp_wrappers 7.6
Gcc 3.3.1
Gnu-make 3.8
There seem to be a couple of configuration options for ssh, namely
--with-ipv4-default and --with-4in6. There also seems to be an IPv6
version of tcp_wrappers. I'm not sure what in Tru64 5.1A is returning
the IPv6 address to ssh or if there is a way to change it.
Any thoughts or advice would be appreciated.
TIA.
Bruce.
------------------------------------------------------------------------
---- Bruce J. Senn Phone: (518) 388-6664 Senior System Manager FAX: (518) 388-6458 Union College E-mail: sennb@union.edu Schenectady, NY 12308 WWW: http://www1.union.edu/~sennb ------------------------------------------------------------------------ ----
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