samuel@portable:~$ ssh -vvv 192.168.1.67
OpenSSH_8.4p1 Debian-2~bpo10+1, OpenSSL 1.1.1d 10 Sep 2019
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: include /etc/ssh/ssh_config.d/*.conf matched no files
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug2: resolve_canonicalize: hostname 192.168.1.67 is address
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/home/samuel/.ssh/known_hosts'
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/home/samuel/.ssh/known_hosts2'
debug2: ssh_connect_direct
debug1: Connecting to 192.168.1.67 [192.168.1.67] port 22.
debug1: Connection established.
debug1: identity file /home/samuel/.ssh/id_rsa type 0
debug1: identity file /home/samuel/.ssh/id_rsa-cert type -1
debug1: identity file /home/samuel/.ssh/id_dsa type -1
debug1: identity file /home/samuel/.ssh/id_dsa-cert type -1
debug1: identity file /home/samuel/.ssh/id_ecdsa type -1
debug1: identity file /home/samuel/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/samuel/.ssh/id_ecdsa_sk type -1
debug1: identity file /home/samuel/.ssh/id_ecdsa_sk-cert type -1
debug1: identity file /home/samuel/.ssh/id_ed25519 type -1
debug1: identity file /home/samuel/.ssh/id_ed25519-cert type -1
debug1: identity file /home/samuel/.ssh/id_ed25519_sk type -1
debug1: identity file /home/samuel/.ssh/id_ed25519_sk-cert type -1
debug1: identity file /home/samuel/.ssh/id_xmss type -1
debug1: identity file /home/samuel/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.4p1 Debian-2~bpo10+1
debug1: Remote protocol version 2.0, remote software version dropbear_0.53.1
debug1: no match: dropbear_0.53.1
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 192.168.1.67:22 as 'samuel'
debug3: hostkeys_foreach: reading file "/home/samuel/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /home/samuel/.ssh/known_hosts:19
debug3: load_hostkeys: loaded 1 keys from 192.168.1.67
debug3: order_hostkeyalgs: prefer hostkeyalgs:
rsa-sha2-512-cert-v01@openssh.com,
rsa-sha2-256-cert-v01@openssh.com,
ssh-rsa-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa
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: 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
debug2: host key algorithms:
rsa-sha2-512-cert-v01@openssh.com,
rsa-sha2-256-cert-v01@openssh.com,
ssh-rsa-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa,
ecdsa-sha2-nistp256-cert-v01@openssh.com,
ecdsa-sha2-nistp384-cert-v01@openssh.com,
ecdsa-sha2-nistp521-cert-v01@openssh.com,
sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,
ssh-ed25519-cert-v01@openssh.com,
sk-ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
sk-ecdsa-sha2-nistp256@openssh.com,ssh-ed25519,
sk-ssh-ed25519@openssh.com
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: diffie-hellman-group1-sha1,diffie-hellman-group14-sha1
debug2: host key algorithms: ssh-rsa
debug2: ciphers ctos: aes128-ctr,3des-ctr,aes256-ctr,aes128-cbc,3des-cbc,aes256-cbc,twofish256-cbc,twofish-cbc,twofish128-cbc
debug2: ciphers stoc: aes128-ctr,3des-ctr,aes256-ctr,aes128-cbc,3des-cbc,aes256-cbc,twofish256-cbc,twofish-cbc,twofish128-cbc
debug2: MACs ctos: hmac-sha1-96,hmac-sha1,hmac-md5
debug2: MACs stoc: hmac-sha1-96,hmac-sha1,hmac-md5
debug2: compression ctos: zlib,
zlib@openssh.com,none
debug2: compression stoc: zlib,
zlib@openssh.com,none
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: (no match)
Unable to negotiate with 192.168.1.67 port 22: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1,diffie-hellman-group14-sha1