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SSH 公钥未发送到服务器

tag-icon • tag-icon linux ssh rsync key-authentication
SSH 公钥未发送到服务器

我在以下方面遇到困难，我正在尝试为 rsync 配置一个 cron 作业以在两个服务器之间同步，为此我需要服务器 A（本地）使用公钥 ssh 到服务器 B。

我之前通过以下方式添加了无密码和无密码连接：

I. 通过 SSH 使用 Key Agent 免费设置 PassPhrase

  1. 重新启动 SSH 密钥代理
    1. 评估 ssh-agent -s
  2. 添加私钥
    1. ssh-添加 ~/.ssh/id_rsa_abc

调试信息

debug1: SSH2_MSG_NEWKEYS sent 
debug1: expecting SSH2_MSG_NEWKEYS    
debug3: receive packet: type 21 
debug1: SSH2_MSG_NEWKEYS received    
debug2: set_newkeys: mode 0 
debug1: rekey after 4294967296 blocks    
debug2: key: /home/groups/user/.ssh/id_rsa_abc    (0x55ad08946370), explicit 
debug3: send packet: type 5 debug3:    receive packet: type 7 
debug1: SSH2_MSG_EXT_INFO received 
debug1:    kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512>    
debug3: receive packet: type 6 
debug2: service_accept: ssh-userauth    
debug1: SSH2_MSG_SERVICE_ACCEPT received 
debug3: send packet: type 50    
debug3: receive packet: type 51 
debug1: Authentications that can    continue: publickey 
debug3: start over, passed a different list    publickey 
debug3: preferred    gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password    
debug3: authmethod_lookup publickey 
debug3: remaining preferred:    keyboard-interactive,password 
debug3: authmethod_is_enabled publickey    debug1: Next authentication method: publickey 
debug1: Offering RSA    public key: /home/groups/user/.ssh/id_rsa_abc   
debug3: send_pubkey_test debug3: send packet: type 50 
debug2: we sent    a publickey packet, wait for reply 
debug3: receive packet: type 60    
debug1: Server accepts key: pkalg rsa-sha2-512 blen 535 
debug2:    input_userauth_pk_ok: fp    SHA256:PYUC9QpfCGMZ8DOvOF944bFHchCNJyNRS2G+wjDXRKQ 
debug3:    sign_and_send_pubkey: RSA    SHA256:PYUC9QpfCGMZ8DOvOF944bFHchCNJyNRS2G+wjDXRKQ 
debug1:    read_passphrase: can't open /dev/tty: No such device or address    
debug2: no passphrase given, try next key 
debug2: we did not send a    packet, disable method 
debug1: No more authentication methods to try.    
Permission denied (publickey). ssh_exchange_identification:    
Connection closed by remote host ssh_exchange_identification:     
Connection closed by remote host 
rsync: connection unexpectedly    closed (0 bytes received so far) [sender] 
rsync error: unexplained    error (code 255) at io.c(226) [sender=3.1.2]

公钥位于 ~/.ssh/（即 /root/.ssh）中，并且服务器 A 和 B 上的所有文件权限都是正确的。

我如何运行 rsync 命令：

rsync -avP --stats --log-file=rsync.log -e 'ssh -p 22 -vvv' source_dir user@serverA:target_dir

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