我/etc/ssh/ssh_config的如下
# 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
# ForwardX11Trusted yes
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
# Protocol 2
# Ciphers aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,3des-cbc
# MACs hmac-md5,hmac-sha1,[email protected]
# EscapeChar ~
# Tunnel no
# TunnelDevice any:any
# PermitLocalCommand no
# VisualHostKey no
# ProxyCommand ssh -q -W %h:%p gateway.example.com
# RekeyLimit 1G 1h
# SendEnv LANG LC_*
# HashKnownHosts yes
# GSSAPIAuthentication yes
我的student用户
ubuntu@ubuntu:~$ finger student
Login: student Name:
Directory: /home/student Shell: /bin/bash
Never logged in.
No mail.
No Plan.
当与我的虚拟机建立 SSH 连接时，它应该要求我输入密码，但事实并非如此，我得到了这个？
joseph@joseph-X541UJ:~$ multipass list
Name State IPv4 Image
ubuntu Running 10.226.208.153 Ubuntu 18.04 LTS
joseph@joseph-X541UJ:~$ ssh [email protected]
[email protected]: Permission denied (publickey).
为什么我无法使用学生密码登录，请帮忙
答案1
您需要在服务器端进行设置。如果您根本无法连接到服务器来进行这些更改，那么远程执行此操作可能不太顺利。
不过，请先尝试强制密码验证：
ssh -o PreferredAuthentications=password -o PubkeyAuthentication=no student@<ip-address>
一旦您成功通过 SSH 连接，您就可以更改服务器端设置。
我建议先备份配置：
sudo cp /etc/ssh/sshd_config /etc/ssh/sshd_config.factory-defaults
现在，编辑配置文件：
sudo nano /etc/ssh/sshd_config
找到说明的行PasswordAuthentication并将其设置为yes。
PasswordAuthentication yes
保存文件并重新启动 SSH
sudo systemctl restart ssh
看本指南有关 ssh 配置的更多信息。