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I am using CentOS 7 server. Yesterday's night, I lean using SSH and SFTP. Everything is ok. I connect to SFTP via File Zilla on macOS 10.14.3

SFTP:

sftp://103.48.194.xxx

user: root

password: ****

port: 22

But today, I cannot use also SSH and SFTP. With SSH by macOS Terminal, I see I enter correct password, but cannot finish success

The result of ssh -v root@103.48.194.xxx is

➜  ~ ssh -v root@103.48.194.xx

OpenSSH_7.9p1, LibreSSL 2.7.3

debug1: Reading configuration data /etc/ssh/ssh_config

debug1: /etc/ssh/ssh_config line 48: Applying options for *

debug1: Connecting to 103.48.194.xx [103.48.194.xx] port 22.

debug1: Connection established.

debug1: identity file /Users/donhuvy/.ssh/id_rsa type 0

debug1: identity file /Users/donhuvy/.ssh/id_rsa-cert type -1

debug1: identity file /Users/donhuvy/.ssh/id_dsa type -1

debug1: identity file /Users/donhuvy/.ssh/id_dsa-cert type -1

debug1: identity file /Users/donhuvy/.ssh/id_ecdsa type -1

debug1: identity file /Users/donhuvy/.ssh/id_ecdsa-cert type -1

debug1: identity file /Users/donhuvy/.ssh/id_ed25519 type -1

debug1: identity file /Users/donhuvy/.ssh/id_ed25519-cert type -1

debug1: identity file /Users/donhuvy/.ssh/id_xmss type -1

debug1: identity file /Users/donhuvy/.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

debug1: Authenticating to 103.48.194.xx:22 as 'root'

debug1: SSH2_MSG_KEXINIT sent

debug1: SSH2_MSG_KEXINIT received

debug1: kex: algorithm: curve25519-sha256

debug1: kex: host key algorithm: ecdsa-sha2-nistp256

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

debug1: expecting SSH2_MSG_KEX_ECDH_REPLY

debug1: Server host key: ecdsa-sha2-nistp256 SHA256:9Ohti7PtCJAN3qMGgBiKh7oBiveKiFy9gHSOI1j3LK8

debug1: Host '103.48.194.xx' is known and matches the ECDSA host key.

debug1: Found key in /Users/donhuvy/.ssh/known_hosts:5

debug1: rekey after 134217728 blocks

debug1: SSH2_MSG_NEWKEYS sent

debug1: expecting SSH2_MSG_NEWKEYS

debug1: SSH2_MSG_NEWKEYS received

debug1: rekey after 134217728 blocks

debug1: Will attempt key: /Users/donhuvy/.ssh/id_rsa RSA SHA256:xpUMQMzX3z6ADCqgmrHzQ7T5GSmDAkVkFVE4aK+3Csc

debug1: Will attempt key: /Users/donhuvy/.ssh/id_dsa 

debug1: Will attempt key: /Users/donhuvy/.ssh/id_ecdsa 

debug1: Will attempt key: /Users/donhuvy/.ssh/id_ed25519 

debug1: Will attempt key: /Users/donhuvy/.ssh/id_xmss 

debug1: SSH2_MSG_EXT_INFO received

debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512>

debug1: SSH2_MSG_SERVICE_ACCEPT received

debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password

debug1: Next authentication method: publickey

debug1: Offering public key: /Users/donhuvy/.ssh/id_rsa RSA SHA256:xpUMQMzX3z6ADCqgmrHzQ7T5GSmDAkVkFVE4aK+3Csc

debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password

debug1: Trying private key: /Users/donhuvy/.ssh/id_dsa

debug1: Trying private key: /Users/donhuvy/.ssh/id_ecdsa

debug1: Trying private key: /Users/donhuvy/.ssh/id_ed25519

debug1: Trying private key: /Users/donhuvy/.ssh/id_xmss

debug1: Next authentication method: password

root@103.48.194.xx's password: 

debug1: Authentication succeeded (password).

Authenticated to 103.48.194.xx ([103.48.194.xx]:22).

debug1: channel 0: new [client-session]

debug1: Requesting no-more-sessions@openssh.com

debug1: Entering interactive session.

debug1: pledge: network

debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0

debug1: Sending environment.

debug1: Sending env LC_CTYPE = UTF-8

debug1: Sending env LC_ALL = en_US.UTF-8

debug1: Sending env LANG = en_US.UTF-8

debug1: client_input_channel_req: channel 0 rtype exit-status reply 0

debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0

Last failed login: Fri Feb 22 23:54:05 EST 2019 from 113.119.xxx.21 on ssh:notty

There were 6 failed login attempts since the last successful login.

Last login: Fri Feb 22 23:38:47 2019 from 14.232.141.136

/bin/bash: No such file or directory

debug1: channel 0: free: client-session, nchannels 1

Connection to 103.48.194.xx closed.

Transferred: sent 2532, received 2756 bytes, in 0.1 seconds

Bytes per second: sent 26858.7, received 29234.9

debug1: Exit status 1

Please help me connect SSH, SFTP from macOS. I don't know what happen after one night.