У нас в конторе много свичей, которые работают по ssh1.
На компах со старым дебианом подключение вызывает вопросов.
Но у меня то Debian 10. Там ssh v2.
При подключении к хосту:
user@home:~$ ssh -vvvv 192.168.6.155
OpenSSH_7.9p1 Debian-10, OpenSSL 1.1.1c 28 May 2019
debug1: Reading configuration data /home/user/.ssh/config
debug1: /home/user/.ssh/config line 1: Applying options for *
debug3: kex names ok: [diffie-hellman-group1-sha1]
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 18: Applying options for 192.168.6.155
debug1: /etc/ssh/ssh_config line 20: Deprecated option "cipher"
debug1: /etc/ssh/ssh_config line 22: Applying options for *
debug3: kex names ok: [diffie-hellman-group1-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group-exchange-sha256]
debug2: resolve_canonicalize: hostname 192.168.6.155 is address
debug2: ssh_connect_direct
debug1: Connecting to 192.168.6.155 [192.168.6.155] port 22.
debug1: Connection established.
debug1: identity file /home/user/.ssh/id_rsa type -1
debug1: identity file /home/user/.ssh/id_rsa-cert type -1
debug1: identity file /home/user/.ssh/id_dsa type -1
debug1: identity file /home/user/.ssh/id_dsa-cert type -1
debug1: identity file /home/user/.ssh/id_ecdsa type -1
debug1: identity file /home/user/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/user/.ssh/id_ed25519 type -1
debug1: identity file /home/user/.ssh/id_ed25519-cert type -1
debug1: identity file /home/user/.ssh/id_xmss type -1
debug1: identity file /home/user/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.9p1 Debian-10
debug1: Remote protocol version 2.0, remote software version DLINK Corp. SSH server ver 1.00.000
debug1: no match: DLINK Corp. SSH server ver 1.00.000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 192.168.6.155:22 as 'user'
debug3: hostkeys_foreach: reading file "/home/user/.ssh/known_hosts"
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,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,ext-info-c
debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,3des-cbc
debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,3des-cbc
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-group-exchange-sha256
debug2: host key algorithms: ssh-dss,ssh-rsa
debug2: ciphers ctos: 3des-cbc,blowfish-cbc,twofish-cbc,twofish256-cbc,twofish192-cbc,twofish128-cbc,aes256-cbc,aes192-cbc,aes128-cbc,arcfour,cast128-cbc
debug2: ciphers stoc: 3des-cbc,blowfish-cbc,twofish-cbc,twofish256-cbc,twofish192-cbc,twofish128-cbc,aes256-cbc,aes192-cbc,aes128-cbc,arcfour,cast128-cbc
debug2: MACs ctos: hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96
debug2: MACs stoc: hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96
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: diffie-hellman-group-exchange-sha256
debug1: kex: host key algorithm: ssh-rsa
debug1: kex: server->client cipher: aes128-cbc MAC: hmac-sha1 compression: none
debug1: kex: client->server cipher: aes128-cbc MAC: hmac-sha1 compression: none
debug3: send packet: type 34
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(2048<7680<8192) sent
debug3: receive packet: type 31
debug1: got SSH2_MSG_KEX_DH_GEX_GROUP
debug2: bits set: 974/2048
debug3: send packet: type 32
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug3: receive packet: type 33
debug1: got SSH2_MSG_KEX_DH_GEX_REPLY
ssh_dispatch_run_fatal: Connection to 192.168.6.155 port 22: Invalid key length
Длина ключа ему не нравится. Видите ли.
Не, ну я могу конечно поставить ssh1 и им подключаться, но это же неправильно.
Этот invalid key length меня уже достал. Я вообще чтобы время экономить подключаюсь к компу суппорта со старым дебианом, а оттуда уже под своим логином ломлюсь на свичи. Но это бред.
Гуглил этот вопрос, но не особо помогает.
Судя по логам, косяк тут:
debug2: KEX algorithms: diffie-hellman-group1-sha1,diffie-hellman-group-exchange-sha256
debug2: host key algorithms: ssh-dss,ssh-rsa
Но блин, если я добавлю строку KexAlgorithms ssh-rsa,ssh-dss в конфиг ssh, то он потом на меня ругается, что нет такого алгоритма.