求助：私有域名，固定公网 ip，如何设置可以通过 ssh 访问？

我觉得是不是服务器 ssh 服务禁止远程以 root 身份登陆，或者 ssh 服务换个端口。

改 host

首先拿普通用户登录试试
其次永远不要允许 root 远程登录

试下用 IP 地址登录 ssh [email protected]
或者 vultr 后台 console 看看什么情况

上面打错了，ssh [email protected]

@CitizenR vultr 可以直接 ssh root@hostip 登录的感觉不是权限的问题。

@abclearner ok 的可以进 shell

@boris1993 感谢提醒主要是试一下

ssh [email protected] -v
看看报什么错误

@MaxTan 好主意，但是我想知道为什么现在这个方法不行，我知道 ddns 比如蒲公英都是可以的，我这个 ip 是静态的应该没问题啊。

@xmbaozi
OpenSSH_7.7p1, 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 abc.org port 22.
debug1: Connection established.
debug1: identity file /Users/johndoe/.ssh/id_rsa type 0
debug1: key_load_public: No such file or directory
debug1: identity file /Users/johndoe/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/johndoe/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/johndoe/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/johndoe/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/johndoe/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/johndoe/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/johndoe/.ssh/id_ed25519-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/johndoe/.ssh/id_xmss type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/johndoe/.ssh/id_xmss-cert type -1
debug1: Local version strin SSH-2.0-OpenSSH_7.7

ssh_exchange_identification: Connection closed by remote host

@zeroze 看#11 楼报错，貌似是免密登录失败，可以正常连接的。

@CitizenR 我没有设置免密登陆，且我 @ip 登陆是需要密码的，是不是可能我 vps，ssh 需要配置一下？

ssh 没开密码登录

检查下你 ssh client 的 config 文件，貌似是配置了密钥登录，但找不到密钥文件

或者试一试 ssh root:[email protected]

@victor97
感谢！
请问是 vps 上的 ssh_config 是吗，但是为啥不是改 sshd_config 呢？
是不是
法一：去掉这项的注释 PasswordAuthentication yes 通过密码登录
法二：ssh-keygen 生成一个 id_rsa，再通过本地通过 ssh -i id_ras.pub [email protected] 登录 VPS
附上 ssh_config
Host *
# ForwardAgent no
# ForwardX11 no
# ForwardX11Trusted yes
# RhostsRSAAuthentication no
# RSAAuthentication 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/identity
# IdentityFile ~/.ssh/id_rsa
# IdentityFile ~/.ssh/id_dsa
# IdentityFile ~/.ssh/id_ecdsa
# IdentityFile ~/.ssh/id_ed25519
# Port 22
# Protocol 2
# Cipher 3des
# Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc
# MACs hmac-md5,hmac-sha1,[email protected],hmac-ripemd160
# 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

@HannibaI 感谢感觉就是这个问题