我在网络设置中创建了 2 个带有桥接适配器的 ubuntu 服务器，用于内部网络和互联网。之后我添加了 /etc/network/interfaces 以使用两个网络的静态 IP 地址。
(changed in both servers 110/111)
# The host-only network interface
auto eth1
iface eth1 inet static
address 192.168.1.111
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
但它无法工作，然后我在 ubuntu 编辑连接页面中手动将其更改为 192.168.1.110/255.255.255.0/192.168.1.1，然后我使用 ifconfig 检查了两个服务器。它起作用了。
- 服务器名称：dodo 192.168.1.110
- 服务器名称：test1 192.168.1.111
我 ping 了两个服务器，并且一切正常。
test1@test1-VirtualBox:~/.ssh$ ping 192.168.1.110
PING 192.168.1.110 (192.168.1.110) 56(84) bytes of data.
64 bytes from 192.168.1.110: icmp_seq=1 ttl=64 time=0.287 ms
64 bytes from 192.168.1.110: icmp_seq=2 ttl=64 time=0.612 ms
64 bytes from 192.168.1.110: icmp_seq=3 ttl=64 time=0.630 ms
64 bytes from 192.168.1.110: icmp_seq=4 ttl=64 time=0.314 ms
我尝试创建 ssh 连接。
sudo apt-get install openssh-server
sudo apt-get install openssh-client
ssh-keygen
我尝试发送id_rsa.pub到 dodo 机器。但是出现以下错误。所以现在我可以使用 ping，但不能使用 scp 或 ssh，我该如何解决这个问题？
test1@test1-VirtualBox:~/.ssh$ scp -v id_rsa.pub [email protected]:/home
Executing: program /usr/bin/ssh host 192.168.1.110, user dodo, command scp -v -t /home
OpenSSH_7.2p2 Ubuntu-4ubuntu2.4, OpenSSL 1.0.2g 1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to 192.168.1.110 [192.168.1.110] port 22.
debug1: Connection established.
debug1: identity file /home/test1/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/test1/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/test1/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/test1/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/test1/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/test1/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/test1/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/test1/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.4
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.2p2 Ubuntu-4ubuntu2.4
debug1: match: OpenSSH_7.2p2 Ubuntu-4ubuntu2.4 pat OpenSSH* compat 0x04000000
debug1: Authenticating to 192.168.1.110:22 as 'dodo'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: [email protected]
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:9WYCnZbK5pne0+335BObL+IejAjf7dptB3NUv8NzD/Q
debug1: Host '192.168.1.110' is known and matches the ECDSA host key.
debug1: Found key in /home/test1/.ssh/known_hosts:1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS received
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
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /home/test1/.ssh/id_rsa
debug1: Authentications that can continue: publickey
debug1: Trying private key: /home/test1/.ssh/id_dsa
debug1: Trying private key: /home/test1/.ssh/id_ecdsa
debug1: Trying private key: /home/test1/.ssh/id_ed25519
debug1: No more authentication methods to try.
Permission denied (publickey).
lost connection