问题描述
我的远程主机已启用 HostbasedAuthentication 登录
cat /etc/ssh/sshd_config
...
# Example of overriding settings on a per-user basis
#Match User anoncvs
# X11Forwarding no
# AllowTcpForwarding no
# PermitTTY no
# ForceCommand cvs server
UseDNS no
HostbasedAuthentication yes
IgnoreRhosts no
当我使用命令行登录时,它提示我Authentication succeeded (hostbased)
ssh -v 192.168.1.2
...
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey after 134217728 blocks
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,hostbased
debug1: Next authentication method: hostbased
debug1: userauth_hostbased: trying hostkey ecdsa-sha2-nistp256 SHA256:nzCIDPxLBPF1qhdmY8yrrZ3DmFzc76oM1Jcx1+BlPRLp
debug1: Authentications that can continue: publickey,hostbased
debug1: userauth_hostbased: trying hostkey ssh-ed25519 SHA256:DPxLBlPRLp+nzCID+Bbz9KpF1qhdaYJ0oM1JrrZ3Dm
debug1: Authentication succeeded (hostbased).
Authenticated to 192.168.1.2 ([192.168.1.2]:22).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
...
但是当我使用 golang.org/x/crypto/ssh
package main
import (
"errors"
"fmt"
"os"
"golang.org/x/crypto/ssh"
"golang.org/x/crypto/ssh/knownhosts"
)
var addr = "192.168.1.2:22"
func main() {
key,err := os.ReadFile("/etc/ssh/ssh_host_ed25519_key")
if err != nil {
panic("read key error," + err.Error())
}
signer,err := ssh.ParsePrivateKey(key)
if err != nil {
panic("ssh parse private key error," + err.Error())
}
check,err := knownhosts.New("/etc/ssh/ssh_known_hosts")
if err != nil {
panic(fmt.Errorf("knownhosts error,%s",err.Error()))
}
config := &ssh.ClientConfig{
User: "root",HostKeyCallback: check,Auth: []ssh.AuthMethod{ssh.PublicKeys(signer)},}
client,err := ssh.Dial("tcp",addr,config)
if err != nil {
panic(errors.New("ssh new client conn error," + err.Error()))
}
_ = client.Close()
}
输出:
[root@arm_linux ~]# ./ssh-test
panic: ssh new client conn error,ssh: handshake failed: ssh: unable to authenticate,attempted methods [none publickey],no supported methods remain
goroutine 1 [running]:
main.main()
D:/project/test/main.go:38 +0x354
解决方法
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