> From: Damien Miller <djm@xxxxxxxxxxx> > Thanks for testing - are you able to see if there's anything in > the server logs? Hi Damien, I've been able to reproduce being unable to successfully connect to EC2 instances launched with either Amazon Linux 2 AMI (HVM) or Amazon Linux AMI 2018.03.0 (HVM) images (which are the first two options you see when launching an instance via their "Launch instance..." wizard). Both appear to use OpenSSH 7.4. I've included both client and server logs below. Older versions of the ssh client connect just fine. For these logs, the server contained no custom configuration (other than setting the LogLevel to DEBUG3), so this should be reproducible by anyone with an AWS account. Hope that helps. Cheers, Adam Client: $ ./ssh ec2-user@xxxxxxxxxxxx.cloud -vvv OpenSSH_7.9p1-snap20190402, OpenSSL 1.1.0g 2 Nov 2017 debug1: Reading configuration data /home/username/.ssh/config debug2: resolve_canonicalize: hostname server.ip.in.cloud is address debug2: ssh_connect_direct debug1: Connecting to server.ip.in.cloud [server.ip.in.cloud] port 22. debug1: Connection established. debug1: identity file /home/username/.ssh/id_rsa type 0 debug1: identity file /home/username/.ssh/id_rsa-cert type -1 debug1: identity file /home/username/.ssh/id_dsa type -1 debug1: identity file /home/username/.ssh/id_dsa-cert type -1 debug1: identity file /home/username/.ssh/id_ecdsa type -1 debug1: identity file /home/username/.ssh/id_ecdsa-cert type -1 debug1: identity file /home/username/.ssh/id_ed25519 type -1 debug1: identity file /home/username/.ssh/id_ed25519-cert type -1 debug1: identity file /home/username/.ssh/id_xmss type -1 debug1: identity file /home/username/.ssh/id_xmss-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_7.9 debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4 debug1: match: OpenSSH_7.4 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 3 setting O_NONBLOCK debug1: Authenticating to server.ip.in.cloud:22 as 'ec2-user' debug3: hostkeys_foreach: reading file "/home/username/.ssh/known_hosts" debug3: record_hostkey: found key type ECDSA in file /home/username/.ssh/known_hosts:13 debug3: load_hostkeys: loaded 1 keys from server.ip.in.cloud debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp384-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp521-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521 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@xxxxxxxxxx,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,ext-info-c debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp384-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp521-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@xxxxxxxxxxx,rsa-sha2-512-cert-v01@xxxxxxxxxxx,rsa-sha2-256-cert-v01@xxxxxxxxxxx,ssh-rsa-cert-v01@xxxxxxxxxxx,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa debug2: ciphers ctos: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx debug2: ciphers stoc: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx debug2: MACs ctos: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: MACs stoc: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: compression ctos: none,zlib@xxxxxxxxxxx,zlib debug2: compression stoc: none,zlib@xxxxxxxxxxx,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@xxxxxxxxxx,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519 debug2: ciphers ctos: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc debug2: ciphers stoc: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc debug2: MACs ctos: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: MACs stoc: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: compression ctos: none,zlib@xxxxxxxxxxx debug2: compression stoc: none,zlib@xxxxxxxxxxx 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: chacha20-poly1305@xxxxxxxxxxx MAC: <implicit> compression: none debug1: kex: client->server cipher: chacha20-poly1305@xxxxxxxxxxx MAC: <implicit> compression: none 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:v57cBLmh7Ypw6bZIWO/wb9+UqN95LOce2IiQdFmY6o8 debug3: hostkeys_foreach: reading file "/home/username/.ssh/known_hosts" debug3: record_hostkey: found key type ECDSA in file /home/username/.ssh/known_hosts:13 debug3: load_hostkeys: loaded 1 keys from server.ip.in.cloud debug1: Host 'server.ip.in.cloud' is known and matches the ECDSA host key. debug1: Found key in /home/username/.ssh/known_hosts:13 debug3: send packet: type 21 debug2: 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: set_newkeys: mode 0 debug1: rekey in after 134217728 blocks debug1: Will attempt key: /home/username/.ssh/id_rsa RSA SHA256:wrong.key.sig agent debug1: Will attempt key: (stdin) RSA SHA256:our.key.sig agent debug1: Will attempt key: /home/username/.ssh/id_dsa debug1: Will attempt key: /home/username/.ssh/id_ecdsa debug1: Will attempt key: /home/username/.ssh/id_ed25519 debug1: Will attempt key: /home/username/.ssh/id_xmss 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=<rsa-sha2-256,rsa-sha2-512> 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 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/username/.ssh/id_rsa RSA SHA256:wrong.key.sig agent 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 debug1: Offering public key: (stdin) RSA SHA256:our.key.sig agent debug3: send packet: type 50 debug2: we sent a publickey packet, wait for reply debug3: receive packet: type 60 debug1: Server accepts key: (stdin) RSA SHA256:our.key.sig agent debug3: sign_and_send_pubkey: RSA SHA256:our.key.sig debug3: sign_and_send_pubkey: signing using rsa-sha2-512 debug3: send packet: type 50 debug3: receive packet: type 52 debug1: Authentication succeeded (publickey). Authenticated to server.ip.in.cloud ([server.ip.in.cloud]:22). 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 no-more-sessions@xxxxxxxxxxx debug3: send packet: type 80 debug1: Entering interactive session. debug1: pledge: network debug3: receive packet: type 80 debug1: client_input_global_request: rtype hostkeys-00@xxxxxxxxxxx want_reply 0 debug3: receive packet: type 91 debug2: channel_input_open_confirmation: channel 0: callback start debug2: fd 3 setting TCP_NODELAY debug3: ssh_packet_set_tos: set IP_TOS 0x48 debug2: client_session2_setup: id 0 debug2: channel 0: request pty-req confirm 1 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 debug3: send packet: type 1 client_loop: Broken pipe <client terminates> Server: Apr 2 22:05:56 ip-an-ip sshd[2773]: Received signal 15; terminating. Apr 2 22:05:56 ip-an-ip sshd[3006]: debug3: oom_adjust_setup Apr 2 22:05:56 ip-an-ip sshd[3006]: debug1: Set /proc/self/oom_score_adj from 0 to -1000 Apr 2 22:05:56 ip-an-ip sshd[3006]: debug2: fd 3 setting O_NONBLOCK Apr 2 22:05:56 ip-an-ip sshd[3006]: debug1: Bind to port 22 on 0.0.0.0. Apr 2 22:05:56 ip-an-ip sshd[3006]: Server listening on 0.0.0.0 port 22. Apr 2 22:05:56 ip-an-ip sshd[3006]: debug2: fd 4 setting O_NONBLOCK Apr 2 22:05:56 ip-an-ip sshd[3006]: debug3: sock_set_v6only: set socket 4 IPV6_V6ONLY Apr 2 22:05:56 ip-an-ip sshd[3006]: debug1: Bind to port 22 on ::. Apr 2 22:05:56 ip-an-ip sshd[3006]: Server listening on :: port 22. Apr 2 22:06:11 ip-an-ip sshd[3006]: debug3: fd 5 is not O_NONBLOCK Apr 2 22:06:11 ip-an-ip sshd[3006]: debug1: Forked child 3009. Apr 2 22:06:11 ip-an-ip sshd[3006]: debug3: send_rexec_state: entering fd = 8 config len 743 Apr 2 22:06:11 ip-an-ip sshd[3006]: debug3: ssh_msg_send: type 0 Apr 2 22:06:11 ip-an-ip sshd[3006]: debug3: send_rexec_state: done Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: oom_adjust_restore Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: Set /proc/self/oom_score_adj to 0 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: rexec start in 5 out 5 newsock 5 pipe 7 sock 8 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: inetd sockets after dupping: 3, 3 Apr 2 22:06:11 ip-an-ip sshd[3009]: Connection from source.ip port 62367 on 172.31.15.213 port 22 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: Client protocol version 2.0; client software version OpenSSH_7.9 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: match: OpenSSH_7.9 pat OpenSSH* compat 0x04000000 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: Local version string SSH-2.0-OpenSSH_7.4 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: Enabling compatibility mode for protocol 2.0 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: fd 3 setting O_NONBLOCK Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: ssh_sandbox_init: preparing rlimit sandbox Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: Network child is on pid 3010 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: preauth child monitor started Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: SELinux support disabled [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: privsep user:group 74:74 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: permanently_set_uid: 74/74 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: list_hostkey_types: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: send packet: type 20 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: SSH2_MSG_KEXINIT sent [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: receive packet: type 20 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: SSH2_MSG_KEXINIT received [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: local server KEXINIT proposal [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@xxxxxxxxxx,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: ciphers ctos: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: ciphers stoc: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: MACs ctos: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: MACs stoc: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: compression ctos: none,zlib@xxxxxxxxxxx [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: compression stoc: none,zlib@xxxxxxxxxxx [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: languages ctos: [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: languages stoc: [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: first_kex_follows 0 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: reserved 0 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: peer client KEXINIT proposal [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@xxxxxxxxxx,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,ext-info-c [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp384-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp521-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@xxxxxxxxxxx,rsa-sha2-512-cert-v01@xxxxxxxxxxx,rsa-sha2-256-cert-v01@xxxxxxxxxxx,ssh-rsa-cert-v01@xxxxxxxxxxx,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: ciphers ctos: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: ciphers stoc: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: MACs ctos: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: MACs stoc: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: compression ctos: none,zlib@xxxxxxxxxxx,zlib [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: compression stoc: none,zlib@xxxxxxxxxxx,zlib [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: languages ctos: [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: languages stoc: [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: first_kex_follows 0 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: reserved 0 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: kex: algorithm: curve25519-sha256 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: kex: host key algorithm: ecdsa-sha2-nistp256 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: kex: client->server cipher: chacha20-poly1305@xxxxxxxxxxx MAC: <implicit> compression: none [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: kex: server->client cipher: chacha20-poly1305@xxxxxxxxxxx MAC: <implicit> compression: none [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: kex: curve25519-sha256 need=64 dh_need=64 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 120 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: monitor_read: checking request 120 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 121 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive_expect entering: type 121 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: kex: curve25519-sha256 need=64 dh_need=64 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 120 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: monitor_read: checking request 120 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 121 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive_expect entering: type 121 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: expecting SSH2_MSG_KEX_ECDH_INIT [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: receive packet: type 30 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_key_sign entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 6 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: monitor_read: checking request 6 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_sign Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_sign: hostkey proof signature 0x55c067c39140(100) Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 7 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: monitor_read: 6 used once, disabling now Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_key_sign: waiting for MONITOR_ANS_SIGN [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive_expect entering: type 7 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: send packet: type 31 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: send packet: type 21 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: set_newkeys: mode 1 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: rekey after 134217728 blocks [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: SSH2_MSG_NEWKEYS sent [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: expecting SSH2_MSG_NEWKEYS [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: send packet: type 7 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: receive packet: type 21 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: SSH2_MSG_NEWKEYS received [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: set_newkeys: mode 0 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: rekey after 134217728 blocks [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: KEX done [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: receive packet: type 5 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: send packet: type 6 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: receive packet: type 50 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: userauth-request for user ec2-user service ssh-connection method none [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: attempt 0 failures 0 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_getpwnamallow entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 8 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: monitor_read: checking request 8 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_pwnamallow Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: Trying to reverse map address source.ip. Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: parse_server_config: config reprocess config len 743 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_pwnamallow: sending MONITOR_ANS_PWNAM: 1 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 9 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: monitor_read: 8 used once, disabling now Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_getpwnamallow: waiting for MONITOR_ANS_PWNAM [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive_expect entering: type 9 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: input_userauth_request: setting up authctxt for ec2-user [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_start_pam entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 100 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: monitor_read: checking request 100 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: PAM: initializing for "ec2-user" Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: PAM: setting PAM_RHOST to "host.on.other.side" Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: PAM: setting PAM_TTY to "ssh" Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: monitor_read: 100 used once, disabling now Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_inform_authserv entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 4 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_inform_authrole entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 80 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: input_userauth_request: try method none [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: userauth_finish: failure partial=0 next methods="publickey" [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: send packet: type 51 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: monitor_read: checking request 4 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_authserv: service=ssh-connection, style= Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: monitor_read: 4 used once, disabling now Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: monitor_read: checking request 80 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_authrole: role= Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: monitor_read: 80 used once, disabling now Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: receive packet: type 50 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: userauth-request for user ec2-user service ssh-connection method publickey [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: attempt 1 failures 0 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: input_userauth_request: try method publickey [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: userauth_pubkey: test whether pkalg/pkblob are acceptable for RSA SHA256:wrong.key.sig [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_key_allowed entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 22 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_key_allowed: waiting for MONITOR_ANS_KEYALLOWED [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive_expect entering: type 23 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: monitor_read: checking request 22 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_keyallowed entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_keyallowed: key_from_blob: 0x55c067c466f0 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: temporarily_use_uid: 500/500 (e=0/0) Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: trying public key file /home/ec2-user/.ssh/authorized_keys Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: fd 4 clearing O_NONBLOCK Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: key not found Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: restore_uid: 0/0 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_keyallowed: key 0x55c067c466f0 is not allowed Apr 2 22:06:11 ip-an-ip sshd[3009]: Failed publickey for ec2-user from source.ip port 62367 ssh2: RSA SHA256:wrong.key.sig Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 23 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: userauth_pubkey: authenticated 0 pkalg rsa-sha2-512 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: userauth_finish: failure partial=0 next methods="publickey" [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: send packet: type 51 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: receive packet: type 50 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: userauth-request for user ec2-user service ssh-connection method publickey [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: attempt 2 failures 1 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: input_userauth_request: try method publickey [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: userauth_pubkey: test whether pkalg/pkblob are acceptable for RSA SHA256:our.key.sig [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_key_allowed entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 22 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_key_allowed: waiting for MONITOR_ANS_KEYALLOWED [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive_expect entering: type 23 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: monitor_read: checking request 22 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_keyallowed entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_keyallowed: key_from_blob: 0x55c067c39330 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: temporarily_use_uid: 500/500 (e=0/0) Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: trying public key file /home/ec2-user/.ssh/authorized_keys Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: fd 4 clearing O_NONBLOCK Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: matching key found: file /home/ec2-user/.ssh/authorized_keys, line 1 RSA SHA256:our.key.sig Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: restore_uid: 0/0 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_keyallowed: key 0x55c067c39330 is allowed Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 23 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: send packet: type 60 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: userauth_pubkey: authenticated 0 pkalg rsa-sha2-512 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: Postponed publickey for ec2-user from source.ip port 62367 ssh2 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: receive packet: type 50 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: userauth-request for user ec2-user service ssh-connection method publickey [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: attempt 3 failures 1 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug2: input_userauth_request: try method publickey [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: userauth_pubkey: have signature for RSA SHA256:our.key.sig [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_key_allowed entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_send entering: type 22 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_key_allowed: waiting for MONITOR_ANS_KEYALLOWED [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive_expect entering: type 23 [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering [preauth] Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_request_receive entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: monitor_read: checking request 22 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_keyallowed entering Apr 2 22:06:11 ip-an-ip sshd[3009]: debug3: mm_answer_keyallowed: key_from_blob: 0x55c067c465f0 Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: temporarily_use_uid: 500/500 (e=0/0) Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: trying public key file /home/ec2-user/.ssh/authorized_keys Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: fd 4 clearing O_NONBLOCK Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: matching key found: file /home/ec2-user/.ssh/authorized_keys, line 1 RSA SHA256:our.key.sig Apr 2 22:06:11 ip-an-ip sshd[3009]: debug1: restore_uid: 0/0 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: PAM: establishing credentials Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: permanently_set_uid: 500/500 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug3: monitor_apply_keystate: packet_set_state Apr 2 22:06:11 ip-an-ip sshd[3011]: debug2: set_newkeys: mode 0 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: rekey after 134217728 blocks Apr 2 22:06:11 ip-an-ip sshd[3011]: debug2: set_newkeys: mode 1 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: rekey after 134217728 blocks Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: ssh_packet_set_postauth: called Apr 2 22:06:11 ip-an-ip sshd[3011]: debug3: ssh_packet_set_state: done Apr 2 22:06:11 ip-an-ip sshd[3011]: debug3: notify_hostkeys: key 0: ssh-rsa SHA256:HR2Tce3f0NZNVJmhSiO+NYOH9CkdctNWlNpZx8ddJts Apr 2 22:06:11 ip-an-ip sshd[3011]: debug3: notify_hostkeys: key 1: ecdsa-sha2-nistp256 SHA256:v57cBLmh7Ypw6bZIWO/wb9+UqN95LOce2IiQdFmY6o8 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug3: notify_hostkeys: key 2: ssh-ed25519 SHA256:RfsVz1u9CcJlkgZg3ybqTA//lEb8x+Pi4xIyM2xKDfA Apr 2 22:06:11 ip-an-ip sshd[3011]: debug3: notify_hostkeys: sent 3 hostkeys Apr 2 22:06:11 ip-an-ip sshd[3011]: debug3: send packet: type 80 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: Entering interactive session for SSH2. Apr 2 22:06:11 ip-an-ip sshd[3011]: debug2: fd 4 setting O_NONBLOCK Apr 2 22:06:11 ip-an-ip sshd[3011]: debug2: fd 6 setting O_NONBLOCK Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: server_init_dispatch Apr 2 22:06:11 ip-an-ip sshd[3011]: debug3: receive packet: type 90 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: server_input_channel_open: ctype session rchan 0 win 1048576 max 16384 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: input_session_request Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: channel 0: new [server-session] Apr 2 22:06:11 ip-an-ip sshd[3011]: debug2: session_new: allocate (allocated 0 max 10) Apr 2 22:06:11 ip-an-ip sshd[3011]: debug3: session_unused: session id 0 unused Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: session_new: session 0 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: session_open: channel 0 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: session_open: session 0: link with channel 0 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: server_input_channel_open: confirm session Apr 2 22:06:11 ip-an-ip sshd[3011]: debug3: send packet: type 91 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug3: receive packet: type 80 Apr 2 22:06:11 ip-an-ip sshd[3011]: debug1: server_input_global_request: rtype no-more-sessions@xxxxxxxxxxx want_reply 0 <no more output from server> _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
