similar to: Hostbased authentication without known_hosts file?

Hi, is it possible to use SSHFP DNS records to enable password-free host-based login? What I already got working is to use SSHFP DNS records to verify the server host keys. debug1: found 2 secure fingerprints in DNS debug1: matching host key fingerprint found in DNS But hostbased login does not work and I still need to supply a password to log in. (Or to configure a known_hosts file on the

Dear All, I am trying to use the hostcertificate to do the hostbaed authentication with the steps in the regress/cert-hostkey.sh But it seems that it can not login with the hostcertificate.: Here is debug message from the ssh client : ssh -2 -oUserKnownHostsFile=/opt/ssh/etc/known_hosts-cert \ > -oGlobalKnownHostsFile=/opt/ssh/etc/known_hosts-cert sshia3 -p 1111 -vvv debug1: checking

I dug through the list archives to see if this had come up before, and I see that a bug <http://bugzilla.mindrot.org/show_bug.cgi?id=393> was submitted and subsequently closed (basically rejected) in 2002. The basic issue, for those of you who don't feel like following the bug URL, is that when one has ssh servers behind a NAT, each of which responds to a different port on the NAT IP,

Hi, On Fri, Jan 9, 2015, at 10:48 AM, Tim Rice wrote: > My ssh_config has > Host * > HostbasedAuthentication yes > EnableSSHKeysign yes > NoHostAuthenticationForLocalhost yes > > NoHostAuthenticationForLocalhost is not necessary. > The one you are missing is EnableSSHKeysign. > > Additionally, you made no mention of your ssh_known_hosts files. Make > sure

http://bugzilla.mindrot.org/show_bug.cgi?id=393 markus at openbsd.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |INVALID ------- Additional Comments From markus at openbsd.org 2002-09-11

Hi, we're looking to reduce the number of host lists that need to be kept in sync in our system. (There are quite a few of them all over the place) OpenSSH CAs are an obvious solution for not having to keep all host keys in sync in /etc/ssh/known_hosts, however, while OpenSSH does support using a CA in conjunction with hostbased authentication, it still requires a list of all authorized

I found this problem when working with the Suse9.1 distribution, but have since reproduced it with a vanilla build of Openssh (openssh-3.9p1.tar.gz). Basically I cannot get a command like this: XXXX>ssh -vvv -1 -o "RhostsAuthentication yes" AAAA to work. Yes the appropriate settings are in the servers sshd_config file. Hostbased protocol 1 ssh using rhosts between computers is

https://bugzilla.mindrot.org/show_bug.cgi?id=2378 Bug ID: 2378 Summary: Allow login to a role using Hostbased auth on platforms supporting PAM_AUSER Product: Portable OpenSSH Version: 6.8p1 Hardware: Sparc OS: Solaris Status: NEW Severity: enhancement Priority: P5

On 09/11/23, Marian Beermann (public at enkore.de) wrote: > ... while OpenSSH does support using a CA in conjunction with hostbased > authentication, it still requires a list of all authorized host names in the > rhosts / shosts file. I'm not familiar with the use of .rhosts/.shosts, but I don't think those are needed at all with a machine or per-user known_hosts file/files

Hi, We want to use Hostbased Authentication in OpenSSH 3.4p1 completely based on rhosts or shosts. Don't want to have any keys exchange between server and client. Created /etc/ssh/sshd_config on OpenSSH server with: RhostsAuthentication yes IgnoreRhosts no HostbasedAuthentication yes Created /etc/ssh/ssh_config on client with: Host * HostbasedAuthentication yes Created /etc/rhosts.equiv,

Hi, Based on some experimentation with 5.4p1 and a cursory examination of the source code, it doesn't look like hostbased authentication takes advantage of certificates other than to authenticate the server. Is that correct? In cluster environments, hostbased authentication is still useful but the size of the ssh_known_hosts file can become unwieldy in large clusters. As an example, a few

On Fri, 10 Nov 2023, Rory Campbell-Lange wrote: > On 09/11/23, Marian Beermann (public at enkore.de) wrote: > > ... while OpenSSH does support using a CA in conjunction with hostbased > > authentication, it still requires a list of all authorized host names in the > > rhosts / shosts file. > > I'm not familiar with the use of .rhosts/.shosts, but I don't think

All: I have a problem connecting Openssh 3.0.2p1 on Solaris 8 using hostname authentication for non-root users. When I connect to the sshd from a second machine as root it works fine using HostbasedAuthentication, but it always fails with non-root users. I suspect that I am having a permissions problem somewhere, but I'll be damned if I can figure out where. Any and all help

I run OpenSSH on linux @ client which ssh /usr/local/bin/ssh ssh -v OpenSSH_6.7p1, OpenSSL 1.0.1j 15 Oct 2014 @ server which sshd /usr/local/bin/sshd sshd -v unknown option -- V OpenSSH_6.7p1, OpenSSL 1.0.1j 15 Oct 2014 usage: sshd [-46DdeiqTt] [-b bits] [-C connection_spec] [-c host_cert_file] [-E log_file] [-f config_file] [-g login_grace_time]

We have a problem using hostbased authentication in combination with the root account. We use hostbased authentication to hop from a 'management server' where we use strong authentication to several systems in a cluster. The management server is defined in shosts.equiv and the public key of this server is defined in ssh_known_hosts. This setup works for all users except for the root user

Hello, I've troubles getting the hostbased method to work. I've given up on system-to-system for now (different versions), and I'm just trying to debug localhost. As far as I can see, the key is accepted, but then a sudden "Failed hostbased" is returned: [...] debug3: mm_answer_keyallowed: key 0x8099bc0 is disallowed debug3: mm_append_debug: Appending debug messages for

https://bugzilla.mindrot.org/show_bug.cgi?id=2211 Bug ID: 2211 Summary: Too many hostbased authentication attempts Product: Portable OpenSSH Version: 6.5p1 Hardware: All OS: All Status: NEW Severity: enhancement Priority: P5 Component: ssh Assignee: unassigned-bugs at

http://bugzilla.mindrot.org/show_bug.cgi?id=512 Summary: Hostbased authentication bypass PAM Product: Portable OpenSSH Version: 3.5p1 Platform: All OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: sshd AssignedTo: openssh-unix-dev at mindrot.org ReportedBy: yaccck at

On 11/15/23, 10:51 AM, "openssh-unix-dev on behalf of Marian Beermann" <openssh-unix-dev-bounces+iain.morgan=nasa.gov at mindrot.org <mailto:nasa.gov at mindrot.org> on behalf of public at enkore.de <mailto:public at enkore.de>> wrote: On 11/15/23 18:09, Chris Rapier wrote: > On 11/11/23 9:31 PM, Damien Miller wrote: > >> It's not discouraged so much as

On 11/11/23 9:31 PM, Damien Miller wrote: > It's not discouraged so much as rarely used. It's very useful in some > situations and I can think of good reasons to use it more often (e.g > requiring both host and user identity as part of authentication). > > It definitely has more rough edges than user publickey authentication - > it's harder to set up (admin only)