Re: [gentoo-user] Ssh problem : half-solved

[Mick]

On Monday, 11 March 2019 13:42:14 GMT Neil Bothwick wrote:
> On Mon, 11 Mar 2019 09:08:14 -0400, Philip Webb wrote:
> > 190311 Neil Bothwick wrote:
> > > Have you run ssh with -v
> > > to see what configuration options it is reading from where.
> > > Bear in mind that ssh stops at the first matching host definition,
> > > so if you have a "host *" in your config, it must be last.
> >
> > This is what I get :
> >   522: ~> ssh -v <URL>
> >   OpenSSH_7.9p1, OpenSSL 1.0.2r  26 Feb 2019
> >   debug1: Reading configuration data /home/purslow/.ssh/config
> >   debug1: Reading configuration data /etc/ssh/ssh_config
> >   debug1: Connecting to <URL> <IP> port 22.
> >   debug1: Connection established.
> >   debug1: identity file /home/purslow/.ssh/id_rsa type -1
> >   debug1: identity file /home/purslow/.ssh/id_rsa-cert type -1
> >   debug1: identity file /home/purslow/.ssh/id_dsa type -1
> >   debug1: identity file /home/purslow/.ssh/id_dsa-cert type -1
> >   debug1: identity file /home/purslow/.ssh/id_ecdsa type -1
> >   debug1: identity file /home/purslow/.ssh/id_ecdsa-cert type -1
> >   debug1: identity file /home/purslow/.ssh/id_ed25519 type -1
> >   debug1: identity file /home/purslow/.ssh/id_ed25519-cert type -1
> >   debug1: identity file /home/purslow/.ssh/id_xmss type -1
> >   debug1: identity file /home/purslow/.ssh/id_xmss-cert type -1
> >   debug1: Local version string SSH-2.0-OpenSSH_7.9
> >   debug1: Remote protocol version 2.0, remote software version
> >
> > OpenSSH_3.7.1p2 debug1: match: OpenSSH_3.7.1p2 pat OpenSSH_3.* compat
> > 0x01000002 debug1: Authenticating to <URL>:22 as 'purslow'
> >
> >   debug1: SSH2_MSG_KEXINIT sent
> >   debug1: SSH2_MSG_KEXINIT received
> >   debug1: kex: algorithm: (no match)
> >   Unable to negotiate with <IP> port 22: no matching key exchange
> >
> > method found. Their offer:
> > diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
> >
> > Is that any help ?
>
> It shows that ssh is reading your config file, but not picking up the
> options for this host. I would expect to see something like
>
> debug1: Reading configuration data /home/nelz/.config/ssh
> debug1: /home/nelz/.config/ssh line N: Applying options for <HOST>
>
> Do you have any other Host stanzas in the config?

Check both config files for conflicts:

/home/purslow/.ssh/config
/etc/ssh/ssh_config

just in case it is defined in both.
-- 
Regards,
Mick