有一个非常奇怪的问题，我自己无法解决。
带有 openssh 8.8p1-1 的 Archlinux 服务器我没有使用密码进行身份验证，只使用 SSH-RSA 密钥。公钥存储在 /home/stiw47/.ssh/authorized_keys 内的服务器上 .ssh 目录权限为 700，authorized_keys 文件权限为 600 多年来一切都完美无缺，直到几天前服务器上的 openssh 从 8.7p1-2 更新到8.8p1-1 除 MobaXterm 外，所有 ssh/sftp 客户端中的一切仍在运行。
让我试着更好地解释一下：
- 如果我尝试从 FileZilla (sftp) 或 Android 上的 JuiceSSH (ssh) 进行连接，那么与所有这些年来一样，使用相同的私钥一切正常。
- 如果我尝试从其他 Linux 机器上的终端或 MobaXterm 终端手动连接，手动我的意思是使用命令：
ssh -i 'C:\Users\stiw4\Documents\keys\id_rsa' [email protected]- 一切正常 - 如果我尝试在 MobaXterm 中使用书签（我喜欢书签），则会收到“服务器拒绝我们的密钥”消息
我不得不提到同样的书签，使用相同的私钥，在服务器上的 openssh 包升级之前正常工作，如果我将服务器上的 openssh 降级回 8.7p1-2，现在也可以工作我已经删除了 Windows 机器上的 MobaXterm known_hosts 文件，但没有改变了。
我试图通过在服务器上运行以下命令来调试它：
sudo `which sshd` -p 2020 -Dd
从 2020 端口上的书签连接，这是日志，我不太理解：
[sudo] password for stiw47:
debug1: sshd version OpenSSH_8.8, OpenSSL 1.1.1l 24 Aug 2021
debug1: private host key #0: ssh-rsa SHA256:uMBMgYez8RvbToK8ZpuVIOT6Kt9DtjwvEEmObduXSaw
debug1: private host key #1: ecdsa-sha2-nistp256 SHA256:s/mpg8gbKeFRefGxYjuHYgXFkL8KrklpgivPk9veSXI
debug1: private host key #2: ssh-ed25519 SHA256:MopYaB4XAi8QBkE+RumfZl6IT3y17c3Mu85X+11+wRY
debug1: rexec_argv[0]='/usr/bin/sshd'
debug1: rexec_argv[1]='-p'
debug1: rexec_argv[2]='2020'
debug1: rexec_argv[3]='-Dd'
debug1: Set /proc/self/oom_score_adj from 0 to -1000
debug1: Bind to port 2020 on 0.0.0.0.
Server listening on 0.0.0.0 port 2020.
debug1: Bind to port 2020 on ::.
Server listening on :: port 2020.
debug1: Server will not fork when running in debugging mode.
debug1: rexec start in 5 out 5 newsock 5 pipe -1 sock 8
debug1: sshd version OpenSSH_8.8, OpenSSL 1.1.1l 24 Aug 2021
debug1: private host key #0: ssh-rsa SHA256:uMBMgYez8RvbToK8ZpuVIOT6Kt9DtjwvEEmObduXSaw
debug1: private host key #1: ecdsa-sha2-nistp256 SHA256:s/mpg8gbKeFRefGxYjuHYgXFkL8KrklpgivPk9veSXI
debug1: private host key #2: ssh-ed25519 SHA256:MopYaB4XAi8QBkE+RumfZl6IT3y17c3Mu85X+11+wRY
debug1: inetd sockets after dupping: 3, 3
Connection from 192.168.0.53 port 50385 on 192.168.0.21 port 2020 rdomain ""
debug1: Local version string SSH-2.0-OpenSSH_8.8
debug1: Remote protocol version 2.0, remote software version MoTTY_Release_0.73
debug1: compat_banner: no match: MoTTY_Release_0.73
debug1: permanently_set_uid: 65534/65534 [preauth]
debug1: list_hostkey_types: rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519 [preauth]
debug1: SSH2_MSG_KEXINIT sent [preauth]
debug1: SSH2_MSG_KEXINIT received [preauth]
debug1: kex: algorithm: diffie-hellman-group-exchange-sha256 [preauth]
debug1: kex: host key algorithm: ssh-ed25519 [preauth]
debug1: kex: client->server cipher: aes256-ctr MAC: hmac-sha2-256 compression: none [preauth]
debug1: kex: server->client cipher: aes256-ctr MAC: hmac-sha2-256 compression: none [preauth]
debug1: expecting SSH2_MSG_KEX_DH_GEX_REQUEST [preauth]
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST received [preauth]
debug1: SSH2_MSG_KEX_DH_GEX_GROUP sent [preauth]
debug1: expecting SSH2_MSG_KEX_DH_GEX_INIT [preauth]
debug1: SSH2_MSG_KEX_DH_GEX_INIT received [preauth]
debug1: rekey out after 4294967296 blocks [preauth]
debug1: SSH2_MSG_NEWKEYS sent [preauth]
debug1: expecting SSH2_MSG_NEWKEYS [preauth]
debug1: SSH2_MSG_NEWKEYS received [preauth]
debug1: rekey in after 4294967296 blocks [preauth]
debug1: KEX done [preauth]
debug1: userauth-request for user stiw47 service ssh-connection method none [preauth]
debug1: attempt 0 failures 0 [preauth]
debug1: PAM: initializing for "stiw47"
debug1: PAM: setting PAM_RHOST to "192.168.0.53"
debug1: PAM: setting PAM_TTY to "ssh"
debug1: userauth-request for user stiw47 service ssh-connection method publickey [preauth]
debug1: attempt 1 failures 0 [preauth]
userauth_pubkey: key type ssh-rsa not in PubkeyAcceptedAlgorithms [preauth]
Received disconnect from 192.168.0.53 port 50385:14: No supported authentication methods available [preauth]
Disconnected from authenticating user stiw47 192.168.0.53 port 50385 [preauth]
debug1: do_cleanup [preauth]
debug1: monitor_read_log: child log fd closed
debug1: do_cleanup
debug1: PAM: cleanup
debug1: Killing privsep child 64262
对我来说很奇怪的情况，你有什么想法吗？
谢谢。