I cofigured SSH enabled earlier and SSH worked flawlessly.
But after update, SSH access was closed.
I first tried inside the LAN but got Connection to 10.0.0.1 closed. I configured the LAN subnet as 10.0.0.0/24 before which still worked as I could access ther web interface as before.
And I could also access the web interface from the WAN by using another port. So that was no issue.
But connecting with ssh root@10.0.0.1 resulted in Connection to 10.0.0.1 closed. Now I opened SSH access via WAN (which is inside another LAN), but got the same message.
I did not change any SSH setting before update.
How can I recover SSH access ?
Here my SSH session (-vvv == extensive debug info):
armemac.local:~/scratch % ssh -p 22 -vvv root@192.168.0.36
OpenSSH_9.6p1, LibreSSL 3.3.6
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 21: include /etc/ssh/ssh_config.d/* matched no files
debug1: /etc/ssh/ssh_config line 54: Applying options for *
debug2: resolve_canonicalize: hostname 192.168.0.36 is address
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/Users/klaas/.ssh/known_hosts'
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/Users/klaas/.ssh/known_hosts2'
debug1: Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling
debug3: channel_clear_timeouts: clearing
debug3: ssh_connect_direct: entering
debug1: Connecting to 192.168.0.36 [192.168.0.36] port 22.
debug3: set_sock_tos: set socket 3 IP_TOS 0x48
debug1: Connection established.
debug1: identity file /Users/klaas/.ssh/id_rsa type 0
debug1: identity file /Users/klaas/.ssh/id_rsa-cert type -1
debug1: identity file /Users/klaas/.ssh/id_ecdsa type -1
debug1: identity file /Users/klaas/.ssh/id_ecdsa-cert type -1
debug1: identity file /Users/klaas/.ssh/id_ecdsa_sk type -1
debug1: identity file /Users/klaas/.ssh/id_ecdsa_sk-cert type -1
debug1: identity file /Users/klaas/.ssh/id_ed25519 type 3
debug1: identity file /Users/klaas/.ssh/id_ed25519-cert type -1
debug1: identity file /Users/klaas/.ssh/id_ed25519_sk type -1
debug1: identity file /Users/klaas/.ssh/id_ed25519_sk-cert type -1
debug1: identity file /Users/klaas/.ssh/id_xmss type -1
debug1: identity file /Users/klaas/.ssh/id_xmss-cert type -1
debug1: identity file /Users/klaas/.ssh/id_dsa type 1
debug1: identity file /Users/klaas/.ssh/id_dsa-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_9.6
debug1: Remote protocol version 2.0, remote software version dropbear
debug1: compat_banner: no match: dropbear
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 192.168.0.36:22 as 'root'
debug3: record_hostkey: found key type ED25519 in file /Users/klaas/.ssh/known_hosts:178
debug3: load_hostkeys_file: loaded 1 keys from 192.168.0.36
debug1: load_hostkeys: fopen /Users/klaas/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug3: order_hostkeyalgs: have matching best-preference key type ssh-ed25519-cert-v01@openssh.com, using HostkeyAlgorithms verbatim
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: sntrup761x25519-sha512@openssh.com,curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,ext-info-c,kex-strict-c-v00@openssh.com
debug2: host key algorithms: ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,sk-ssh-ed25519-cert-v01@openssh.com,sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-ed25519,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ssh-ed25519@openssh.com,sk-ecdsa-sha2-nistp256@openssh.com,rsa-sha2-512,rsa-sha2-256
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib@openssh.com,zlib
debug2: compression stoc: none,zlib@openssh.com,zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,kexguess2@matt.ucc.asn.au
debug2: host key algorithms: ssh-ed25519,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes256-ctr
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes256-ctr
debug2: MACs ctos: hmac-sha1,hmac-sha2-256
debug2: MACs stoc: hmac-sha1,hmac-sha2-256
debug2: compression ctos: none
debug2: compression stoc: none
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ssh-ed25519
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: SSH2_MSG_KEX_ECDH_REPLY received
debug1: Server host key: ssh-ed25519 SHA256:kz7Wvodo2y7IBKgP6QptL2ymDIQUixNxGxpfnFgxrQo
debug3: record_hostkey: found key type ED25519 in file /Users/klaas/.ssh/known_hosts:178
debug3: load_hostkeys_file: loaded 1 keys from 192.168.0.36
debug1: load_hostkeys: fopen /Users/klaas/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug1: Host '192.168.0.36' is known and matches the ED25519 host key.
debug1: Found key in /Users/klaas/.ssh/known_hosts:178
debug3: send packet: type 21
debug2: ssh_set_newkeys: mode 1
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: ssh_set_newkeys: mode 0
debug1: rekey in after 134217728 blocks
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug3: kex_input_ext_info: extension server-sig-algs
debug1: kex_ext_info_client_parse: server-sig-algs=<ssh-ed25519,rsa-sha2-256,ssh-rsa>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug3: start over, passed a different list publickey,password
debug3: preferred publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug3: ssh_get_authentication_socket_path: path '/Users/klaas/.sekey/ssh-agent.ssh'
debug1: get_agent_identities: ssh_get_authentication_socket: Connection refused
debug1: Skipping ssh-dss key /Users/klaas/.ssh/id_dsa - corresponding algorithm not in PubkeyAcceptedAlgorithms
debug1: Will attempt key: /Users/klaas/.ssh/id_rsa RSA SHA256:Mh8uuwZwf0zVhPGPmZ/i7SVHlikZmAleGnj9kphNMts
debug1: Will attempt key: /Users/klaas/.ssh/id_ecdsa
debug1: Will attempt key: /Users/klaas/.ssh/id_ecdsa_sk
debug1: Will attempt key: /Users/klaas/.ssh/id_ed25519 ED25519 SHA256:ZJ+grijrDZCBHEnwsNaU9tiMqLWuqXDEZDGBQfyU2Ss
debug1: Will attempt key: /Users/klaas/.ssh/id_ed25519_sk
debug1: Will attempt key: /Users/klaas/.ssh/id_xmss
debug2: pubkey_prepare: done
debug1: Offering public key: /Users/klaas/.ssh/id_rsa RSA SHA256:Mh8uuwZwf0zVhPGPmZ/i7SVHlikZmAleGnj9kphNMts
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: /Users/klaas/.ssh/id_ecdsa
debug3: no such identity: /Users/klaas/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /Users/klaas/.ssh/id_ecdsa_sk
debug3: no such identity: /Users/klaas/.ssh/id_ecdsa_sk: No such file or directory
debug1: Offering public key: /Users/klaas/.ssh/id_ed25519 ED25519 SHA256:ZJ+grijrDZCBHEnwsNaU9tiMqLWuqXDEZDGBQfyU2Ss
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: /Users/klaas/.ssh/id_ed25519_sk
debug3: no such identity: /Users/klaas/.ssh/id_ed25519_sk: No such file or directory
debug1: Trying private key: /Users/klaas/.ssh/id_xmss
debug3: no such identity: /Users/klaas/.ssh/id_xmss: No such file or directory
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
root@192.168.0.36's password: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Here password filled in
debug3: send packet: type 50
debug2: we sent a password packet, wait for reply
debug3: receive packet: type 52
Authenticated to 192.168.0.36 ([192.168.0.36]:22) using "password".
debug1: channel 0: new session [client-session] (inactive timeout: 0)
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug3: send packet: type 90
debug1: Entering interactive session.
debug1: pledge: filesystem
debug3: client_repledge: enter
debug3: receive packet: type 91
debug2: channel_input_open_confirmation: channel 0: callback start
debug2: fd 3 setting TCP_NODELAY
debug3: set_sock_tos: set socket 3 IP_TOS 0x48
debug2: client_session2_setup: id 0
debug2: channel 0: request pty-req confirm 1
debug3: send packet: type 98
debug1: Sending environment.
debug3: Ignored env TERM_PROGRAM
debug3: Ignored env SHELL
debug3: Ignored env TERM
debug3: Ignored env TMPDIR
debug3: Ignored env TERM_PROGRAM_VERSION
debug3: Ignored env TERM_SESSION_ID
debug3: Ignored env USER
debug3: Ignored env SSH_AUTH_SOCK
debug3: Ignored env PATH
debug3: Ignored env LaunchInstanceID
debug3: Ignored env __CFBundleIdentifier
debug3: Ignored env PWD
debug3: Ignored env XPC_FLAGS
debug3: Ignored env XPC_SERVICE_NAME
debug3: Ignored env SHLVL
debug3: Ignored env HOME
debug3: Ignored env LOGNAME
debug3: Ignored env SECURITYSESSIONID
debug3: Ignored env OLDPWD
debug3: Ignored env EDITOR
debug3: Ignored env LDFLAGS
debug3: Ignored env CPPFLAGS
debug3: Ignored env PKG_CONFIG_PATH
debug3: Ignored env LE_WORKING_DIR
debug3: Ignored env GUILE_LOAD_PATH
debug3: Ignored env GUILE_LOAD_COMPILED_PATH
debug3: Ignored env GUILE_SYSTEM_EXTENSIONS_PATH
debug3: Ignored env HOMEBREW_NO_AUTO_UPDATE
debug3: Ignored env AUTOJUMP_SOURCED
debug3: Ignored env AUTOJUMP_ERROR_PATH
debug1: channel 0: setting env LC_CTYPE = "UTF-8"
debug2: channel 0: request env confirm 0
debug3: send packet: type 98
debug3: Ignored env _
debug3: Ignored env __CF_USER_TEXT_ENCODING
debug2: channel 0: request shell confirm 1
debug3: send packet: type 98
debug3: client_repledge: enter
debug2: channel_input_open_confirmation: channel 0: callback done
debug2: channel 0: open confirm rwindow 24576 rmax 32759
debug3: receive packet: type 99
debug2: channel_input_status_confirm: type 99 id 0
debug2: PTY allocation request accepted on channel 0
debug3: receive packet: type 99
debug2: channel_input_status_confirm: type 99 id 0
debug2: shell request accepted on channel 0
debug3: receive packet: type 96
debug2: channel 0: rcvd eof
debug2: channel 0: output open -> drain
debug2: channel 0: obuf empty
debug2: chan_shutdown_write: channel 0: (i0 o1 sock -1 wfd 5 efd 6 [write])
debug2: channel 0: output drain -> closed
debug3: receive packet: type 98
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug3: receive packet: type 97
debug2: channel 0: rcvd close
debug2: chan_shutdown_read: channel 0: (i0 o3 sock -1 wfd 4 efd 6 [write])
debug2: channel 0: input open -> closed
debug3: channel 0: will not send data after close
debug2: channel 0: almost dead
debug2: channel 0: gc: notify user
debug2: channel 0: gc: user detached
debug2: channel 0: send close
debug3: send packet: type 97
debug2: channel 0: is dead
debug2: channel 0: garbage collecting
debug1: channel 0: free: client-session, nchannels 1
debug3: channel 0: status: The following connections are open:
#0 client-session (t4 [session] r0 i3/0 o3/0 e[write]/0 fd -1/-1/6 sock -1 cc -1 io 0x00/0x00)
debug3: send packet: type 1
Connection to 192.168.0.36 closed. <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Transferred: sent 2780, received 976 bytes, in 0.0 seconds
Bytes per second: sent 230342.2, received 80868.3
debug1: Exit status 1
armemac.local:~/scratch %