一、前言
操作系统：~Linux localhost.localdomain 4.19.90-25.2.v2101.gfb01.ky10.aarch64 #1 SMP Fri Jun 18 11:35:13 CST 2021 aarch64 aarch64 aarch64 GNU/Linux~（uname -a查看）
问题：无法通过SSH登陆麒麟系统，以下通过修改ssh_config文件然后重启sshd服务允许远程访问。
二、步骤
以下操作在root下执行
第一步：修改/etc/ssh/ssh_config文件内容如下
# $OpenBSD: ssh_config,v 1.34 2019/02/04 02:39:42 dtucker Exp $
# This is the ssh client system-wide configuration file. See
# ssh_config(5) for more information. This file provides defaults for
# users, and the values can be changed in per-user configuration files
# or on the command line.
# Configuration data is parsed as follows:
# 1. command line options
# 2. user-specific file
# 3. system-wide file
# Any configuration value is only changed the first time it is set.
# Thus, host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.
# Site-wide defaults for some commonly used options. For a comprehensive
# list of available options, their meanings and defaults, please see the
# ssh_config(5) man page.
# Host *
# ForwardAgent no
# ForwardX11 no
PasswordAuthentication yes
# HostbasedAuthentication no
# GSSAPIAuthentication no
# GSSAPIDelegateCredentials no
# GSSAPIKeyExchange no
# GSSAPITrustDNS no
# BatchMode no
# CheckHostIP yes
# AddressFamily any
# ConnectTimeout 0
# StrictHostKeyChecking ask
# IdentityFile ~/.ssh/id_rsa
# IdentityFile ~/.ssh/id_dsa
# IdentityFile ~/.ssh/id_ecdsa
# IdentityFile ~/.ssh/id_ed25519
Port 22
# Ciphers aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,3des-cbc
# MACs hmac-md5,hmac-sha1,umac-64@openssh.com
# EscapeChar ~
# Tunnel no
# TunnelDevice any:any
# PermitLocalCommand no
# VisualHostKey no
# ProxyCommand ssh -q -W %h:%p gateway.example.com
# RekeyLimit 1G 1h
#
# To modify the system-wide ssh configuration, create a *.conf file under
# /etc/ssh/ssh_config.d/ which will be automatically included below
Include /etc/ssh/ssh_config.d/*.conf
主要将以下两行放开
PasswordAuthentication yes
Port 22
第三步：重启sshd服务
systemctl restart sshd
