Re: ssh -Y from macOS (11.16.2 Bigsur) to FreeBSD box (12.3)
- In reply to: Christoph Kukulies : "Re: ssh -Y from macOS (11.16.2 Bigsur) to FreeBSD box (12.3)"
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Date: Thu, 10 Feb 2022 09:33:35 UTC
To add: xauth is installed on the FreeBSD side. Another data point: starting X11 explicitly then starting an xterm on the mac side and issuing xhost + logging into the FreeBSD box using ssh -Y pc235 doing an xclock there -> works! I recall that this worked more elegantly by just typing ssh -Y host in the macOS terminal window. > Am 10.02.2022 um 10:25 schrieb Christoph Kukulies <kuku@kukulies.org>: > > Hi, > > Thanks. I wrote the OS-version in the subject. macOS 11.6.2 BigSur > > I have > > X11Forwarding yes > X11DisplayOffset 10 > X11UseLocalhost yes > > in /etc/ssh/sshd_config in me FreeBSD box. > > I’m not sure whether I installed XQuartz from Apple or XQuartz.org <http://xquartz.org/>. It used to work. The only change were OS upgrades Catalina-Mojave-Bigsur. > Looks like it’s Apple: > > <PastedGraphic-3.png> > > I’m doing it from a Mac terminal not a xterm. > > I did not start X11 explicitly. I believe to recall that the macOS window manager accepts X-connections or laumches X11 automatically - Not sure though. > > — > Christoph > >> Am 10.02.2022 um 09:55 schrieb Patrick Mahan <plmahan@gmail.com <mailto:plmahan@gmail.com>>: >> >> On Thu, Feb 10, 2022 at 12:00 AM Christoph Kukulies <kuku@kukulies.org <mailto:kuku@kukulies.org>> wrote: >> I recall it had workd in the past but something must have changed. >> I’m trying to do the following >> >> >> >> ssh -Y -v pc235 >> OpenSSH_8.1p1, LibreSSL 2.7.3 >> debug1: Reading configuration data /etc/ssh/ssh_config >> debug1: /etc/ssh/ssh_config line 47: Applying options for * >> debug1: Connecting to pc235 port 22. >> debug1: Connection established. >> debug1: identity file /Users/kuku/.ssh/id_rsa type 0 >> debug1: identity file /Users/kuku/.ssh/id_rsa-cert type -1 >> debug1: identity file /Users/kuku/.ssh/id_dsa type -1 >> debug1: identity file /Users/kuku/.ssh/id_dsa-cert type -1 >> debug1: identity file /Users/kuku/.ssh/id_ecdsa type -1 >> debug1: identity file /Users/kuku/.ssh/id_ecdsa-cert type -1 >> debug1: identity file /Users/kuku/.ssh/id_ed25519 type 3 >> debug1: identity file /Users/kuku/.ssh/id_ed25519-cert type -1 >> debug1: identity file /Users/kuku/.ssh/id_xmss type -1 >> debug1: identity file /Users/kuku/.ssh/id_xmss-cert type -1 >> debug1: Local version string SSH-2.0-OpenSSH_8.1 >> debug1: Remote protocol version 2.0, remote software version OpenSSH_7.9 FreeBSD-20200214 >> debug1: match: OpenSSH_7.9 FreeBSD-20200214 pat OpenSSH* compat 0x04000000 >> debug1: Authenticating to pc235:22 as 'kuku' >> debug1: SSH2_MSG_KEXINIT sent >> debug1: SSH2_MSG_KEXINIT received >> debug1: kex: algorithm: curve25519-sha256 >> debug1: kex: host key algorithm: ecdsa-sha2-nistp256 >> debug1: kex: server->client cipher: chacha20-poly1305@openssh.com <mailto:chacha20-poly1305@openssh.com> MAC: <implicit> compression: none >> debug1: kex: client->server cipher: chacha20-poly1305@openssh.com <mailto:chacha20-poly1305@openssh.com> MAC: <implicit> compression: none >> debug1: expecting SSH2_MSG_KEX_ECDH_REPLY >> debug1: Server host key: ecdsa-sha2-nistp256 SHA256:xxxxxxxxxx >> debug1: Host 'pc235' is known and matches the ECDSA host key. >> debug1: Found key in /Users/kuku/.ssh/known_hosts:7 >> debug1: rekey out after 134217728 blocks >> debug1: SSH2_MSG_NEWKEYS sent >> debug1: expecting SSH2_MSG_NEWKEYS >> debug1: SSH2_MSG_NEWKEYS received >> debug1: rekey in after 134217728 blocks >> debug1: Will attempt key: /Users/kuku/.ssh/id_rsa RSA SHA256:xxxxxxxxx >> debug1: Will attempt key: /Users/kuku/.ssh/id_dsa >> debug1: Will attempt key: /Users/kuku/.ssh/id_ecdsa >> debug1: Will attempt key: /Users/kuku/.ssh/id_ed25519 ED25519 SHA256:xxxxxxx >> debug1: Will attempt key: /Users/kuku/.ssh/id_xmss >> debug1: SSH2_MSG_EXT_INFO received >> debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521> >> debug1: SSH2_MSG_SERVICE_ACCEPT received >> debug1: Authentications that can continue: publickey,keyboard-interactive >> debug1: Next authentication method: publickey >> debug1: Offering public key: /Users/kuku/.ssh/id_rsa RSA SHA256:xxxxxx >> debug1: Server accepts key: /Users/kuku/.ssh/id_rsa RSA SHA256:xxxxxx >> debug1: Authentication succeeded (publickey). >> Authenticated to pc235 ([192.168.178.34]:22). >> debug1: channel 0: new [client-session] >> debug1: Requesting no-more-sessions@openssh.com <mailto:no-more-sessions@openssh.com> >> debug1: Entering interactive session. >> debug1: pledge: exec >> debug1: client_input_global_request: rtype hostkeys-00@openssh.com <mailto:hostkeys-00@openssh.com> want_reply 0 >> debug1: Remote: /home/kuku/.ssh/authorized_keys:1: key options: agent-forwarding port-forwarding pty user-rc x11-forwarding >> debug1: Remote: /home/kuku/.ssh/authorized_keys:1: key options: agent-forwarding port-forwarding pty user-rc x11-forwarding >> debug1: No xauth program. >> Warning: No xauth data; using fake authentication data for X11 forwarding. >> debug1: Requesting X11 forwarding with authentication spoofing. >> debug1: Sending environment. >> debug1: Sending env LANG = de_DE.UTF-8 >> Last login: Thu Feb 10 08:44:31 2022 from christophs-macbook-pro.fritz.box >> FreeBSD 12.3-RELEASE-p1 GENERIC >> >> Welcome to FreeBSD! >> >> >> $ echo $DISPLAY >> localhost:10.0 >> $ xclock >> connect /tmp/.X11-unix/X0: No such file or directory >> Error: Can't open display: localhost:10.0 >> >> Any clues? >> >> >> First the obvious questions: >> >> 1. What version of Mac OS X are you running? >> 2. Where did you install XQuartz from? Apple or XQuartz.org <http://xquartz.org/>? >> 3. Are trying this from the supplied xterm with XQuartz or terminal.app? >> >> You might want to install xauth from packages (or ports source). You might need to enable X11 forwarding in the sshd config on FreeBSD. >> >> HTH, >> >> Patrick >