私のSSH設定を使用して、Googleクラウドコンピューティングインスタンスをジャンプボックスとして使用して別のボックスに接続したいと思います。ただし、Google Cloud Computeインスタンスに接続できる設定を取得できません。
必要な機能はssh gcloudgcloudインスタンスに接続することです。 ssh fooボックスを介してのみ接続できるノードに私を接続してくださいgcloud。
gcloudに接続するには：
/home/me/google-cloud-sdk/bin/gcloud compute --project "myproject" ssh --zone "myzone" me@gcloud
だから私の項目を追加しました.ssh/config。
Host gcloud
ProxyCommand /home/me/google-cloud-sdk/bin/gcloud compute --project "myproject" ssh --zone "myzone" me@gcloud
その後、実行して以下をssh gcloud取得します。
# ssh gcloud
Pseudo-terminal will not be allocated because stdin is not a terminal.
-bash: line 1: $'SSH-2.0-OpenSSH_8.0\r': command not found
接続されているようでしたが、入力するように求められず、Ctrl-Cを押して終了しました。
デバッグ
頑張った
/home/me/google-cloud-sdk/bin/gcloud compute --project "myproject" ssh --zone "myzone" me@gcloud --dryrun
これは実行中のsshコマンドを示し、私が気にしない多くのフラグを追加します。その--plainフラグを追加すると、1つのフラグを含む単純なバージョンが提供されます-t。
# /home/me/google-cloud-sdk/bin/gcloud compute --project "myproject" ssh --zone "myzone" me@gcloud
/usr/bin/ssh -t me@<gcloud_ip>
そのフラグを追加しなくても--dryrun接続できますが、--plainSSH 構成で使用する場合は接続できません。それ以降のパラメータは--sshに渡されます。これで接続を再度追加しようとしましたが、-- -t今回は警告も表示されず、プロンプトも表示されませんでした。私も試してみました-- -ttが、エラーだけを開いてプロンプトも出ませんでした。
追加すると、-- -vvv次の詳細なログを取得できます。
$ ssh gcloud
OpenSSH_8.0p1, OpenSSL 1.1.1d FIPS 10 Sep 2019
debug1: Reading configuration data /home/me/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 51: Including file /etc/ssh/ssh_config.d/05-redhat.conf depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug2: checking match for 'final all' host <gcloud_ip> originally <gcloud_ip>
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 3: not matched 'final'
debug2: match not found
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 5: Including file /etc/crypto-policies/back-ends/openssh.config depth 1 (parse only)
debug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config
debug3: gss kex names ok: [gss-gex-sha1-,gss-group14-sha1-,gss-group1-sha1-]
debug3: kex names ok: [curve25519-sha256,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1]
debug1: configuration requests final Match pass
debug2: resolve_canonicalize: hostname <gcloud_ip> is address
debug1: re-parsing configuration
debug1: Reading configuration data /home/me/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 51: Including file /etc/ssh/ssh_config.d/05-redhat.conf depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug2: checking match for 'final all' host <gcloud_ip> originally <gcloud_ip>
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 3: matched 'final'
debug2: match found
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 5: Including file /etc/crypto-policies/back-ends/openssh.config depth 1
debug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config
debug3: gss kex names ok: [gss-gex-sha1-,gss-group14-sha1-,gss-group1-sha1-]
debug3: kex names ok: [curve25519-sha256,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1]
Pseudo-terminal will not be allocated because stdin is not a terminal.
debug2: ssh_connect_direct
debug1: Connecting to <gcloud_ip> [<gcloud_ip>] port 22.
debug1: Connection established.
debug1: identity file /home/me/.ssh/google_compute_engine type 0
debug1: identity file /home/me/.ssh/google_compute_engine-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.0
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4p1 Debian-10+deb9u7
debug1: match: OpenSSH_7.4p1 Debian-10+deb9u7 pat OpenSSH_7.0*,OpenSSH_7.1*,OpenSSH_7.2*,OpenSSH_7.3*,OpenSSH_7.4*,OpenSSH_7.5*,OpenSSH_7.6*,OpenSSH_7.7* compat 0x04000002
debug2: fd 4 setting O_NONBLOCK
debug1: Authenticating to <gcloud_ip>:22 as 'metrics'
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,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,ext-info-c
debug2: host key algorithms: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ssh-dss
debug2: ciphers ctos: [email protected],[email protected],aes256-ctr,aes256-cbc,[email protected],aes128-ctr,aes128-cbc
debug2: ciphers stoc: [email protected],[email protected],aes256-ctr,aes256-cbc,[email protected],aes128-ctr,aes128-cbc
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha1,[email protected],hmac-sha2-512
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha1,[email protected],hmac-sha2-512
debug2: compression ctos: none,[email protected],zlib
debug2: compression stoc: none,[email protected],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,[email protected],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
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: curve25519-sha256 need=32 dh_need=32
debug1: kex: curve25519-sha256 need=32 dh_need=32
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:SSiahqZ80hKyZnrwU7tXf7yVH4iw0T1VuGa273/rSm8
debug1: using hostkeyalias: compute.6046273207033681025
debug3: hostkeys_foreach: reading file "/home/me/.ssh/google_compute_known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/me/.ssh/google_compute_known_hosts:164
debug3: load_hostkeys: loaded 1 keys from compute.6046273207033681025
debug1: Host 'compute.6046273207033681025' is known and matches the ECDSA host key.
debug1: Found key in /home/me/.ssh/google_compute_known_hosts:164
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey out after 4294967296 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey in after 4294967296 blocks
debug1: Will attempt key: /home/me/.ssh/google_compute_engine RSA SHA256:v+I+Ar49s9xNTLoC6jSGYwsSeYhHtnCw7B2JWDF8UWs explicit agent
debug2: pubkey_prepare: done
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>
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
debug3: start over, passed a different list publickey
debug3: preferred gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: /home/me/.ssh/google_compute_engine RSA SHA256:v+I+Ar49s9xNTLoC6jSGYwsSeYhHtnCw7B2JWDF8UWs explicit agent
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 60
debug1: Server accepts key: /home/me/.ssh/google_compute_engine RSA SHA256:v+I+Ar49s9xNTLoC6jSGYwsSeYhHtnCw7B2JWDF8UWs explicit agent
debug3: sign_and_send_pubkey: RSA SHA256:v+I+Ar49s9xNTLoC6jSGYwsSeYhHtnCw7B2JWDF8UWs
debug3: sign_and_send_pubkey: signing using ssh-rsa
debug3: send packet: type 50
debug3: receive packet: type 52
debug1: Authentication succeeded (publickey).
Authenticated to <gcloud_ip> ([<gcloud_ip>]:22).
debug2: fd 5 setting O_NONBLOCK
debug2: fd 7 setting O_NONBLOCK
debug1: channel 0: new [client-session]
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug3: send packet: type 90
debug1: Requesting [email protected]
debug3: send packet: type 80
debug1: Entering interactive session.
debug1: pledge: network
debug2: client_check_window_change: changed
debug3: receive packet: type 80
debug1: client_input_global_request: rtype [email protected] want_reply 0
debug3: receive packet: type 91
debug2: channel_input_open_confirmation: channel 0: callback start
debug2: fd 4 setting TCP_NODELAY
debug3: ssh_packet_set_tos: set IP_TOS 0x20
debug2: client_session2_setup: id 0
debug1: Sending environment.
debug1: Sending env XMODIFIERS = @im=ibus
debug2: channel 0: request env confirm 0
debug3: send packet: type 98
debug1: Sending env LANG = en_US.UTF-8
debug2: channel 0: request env confirm 0
debug3: send packet: type 98
debug2: channel 0: request shell confirm 1
debug3: send packet: type 98
debug2: channel_input_open_confirmation: channel 0: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
debug2: channel 0: rcvd adjust 2097152
debug3: receive packet: type 99
debug2: channel_input_status_confirm: type 99 id 0
debug2: shell request accepted on channel 0
debug2: channel 0: rcvd ext data 59
-bash: line 1: $'SSH-2.0-OpenSSH_8.0\r': command not found
debug2: channel 0: written 59 to efd 8
ジャンプ（私の長期目標）については、以下を介してノードに接続できます。
ssh -J me@<gcloud_ip> -p <port> me@<node_ip>
しかし、私はそれを私の構成にカプセル化してssh node。
答え1
うまくいく構文が見つかり、SSH設定に次のものを追加して、この名前を使用してgcloudコンピューティングインスタンスに直接接続できます。
Host gcloud
User me
ProxyCommand gcloud compute --project "myproject" ssh --zone "myzone" me@gcloud --command="nc 0.0.0.0 22"
今私は言うことができますssh gcloud
ジャンプボックスとして使用するには、設定に追加できます。
Host *.gc
User me
IdentityFile myIdentityFile
ProxyCommand gcloud compute --project "myproject" ssh --zone "myzone" me@gcloud --command="nc $(basename %h .gc) %p"
ssh <instance_ip>.gcgcloudこれにより、コンピューティングインスタンスを実行用のジャンプボックスとして使用できます。
答え2
要塞/ジャンプボックスを介してSSHトラフィックをプロキシするには、ネットワーク-W %h:%に接続する必要があります。以下に例を示しますProxyCommand。~/.ssh/config
Host *
ForwardAgent yes
AddKeysToAgent yes
# Bastion/jumpbox
Host gcloud
StrictHostKeyChecking no
UserKnownHostsFile=/dev/null
# Target instance
Host compute.* 10.1.2.*
User me
IdentityFile ~/.ssh/mykey.pem
ProxyCommand ssh -q -W %h:%p me@gcloud
StrictHostKeyChecking no
UserKnownHostsFile=/dev/null