Centos7 scp: Connection closed

背景：因Centos7.9安装后openssh和openssl存在漏洞。因此将openssh和openssl升级后文件丢失导致scp报错无法使用。

 1 debug1: channel 0: new session [client-session] (inactive timeout: 0)
 2 debug1: Requesting no-more-sessions@openssh.com
 3 debug1: Entering interactive session.
 4 debug1: pledge: filesystem
 5 debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
 6 debug1: client_input_hostkeys: searching /root/.ssh/known_hosts for 192.168.40.200 / (none)
 7 debug1: client_input_hostkeys: searching /root/.ssh/known_hosts2 for 192.168.40.200 / (none)
 8 debug1: client_input_hostkeys: hostkeys file /root/.ssh/known_hosts2 does not exist
 9 debug1: client_input_hostkeys: no new or deprecated keys from server
10 debug1: Sending subsystem: sftp
11 debug1: pledge: fork
12 debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
13 debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0
14 debug1: channel 0: free: client-session, nchannels 1
15 Transferred: sent 3208, received 3380 bytes, in 0.1 seconds
16 Bytes per second: sent 35608.8, received 37518.0
17 debug1: Exit status 127
18 debug1: compress outgoing: raw data 141, compressed 123, factor 0.87
19 debug1: compress incoming: raw data 566, compressed 538, factor 0.95
20 scp: Connection closed
21 [root@localhost ~]# egrep -v '^$|#' /etc/ssh/sshd_config |sort
22 AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
23 AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
24 AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
25 AcceptEnv XMODIFIERS
26 AuthorizedKeysFile      .ssh/authorized_keys
27 ChallengeResponseAuthentication no
28 HostKey /etc/ssh/ssh_host_ecdsa_key
29 HostKey /etc/ssh/ssh_host_ed25519_key
30 HostKey /etc/ssh/ssh_host_rsa_key
31 PasswordAuthentication yes
32 PermitRootLogin yes
33 Subsystem       sftp    /usr/libexec/openssh/sftp-server
34 SyslogFacility AUTHPRIV
35 UseDNS no 
36 UsePAM yes
37 [root@l-smart-psu-pro-cq-cs webapp]# ll /usr/libexec/openssh/sftp-server
38 ls: 无法访问/usr/libexec/openssh/sftp-server: 没有那个文件或目录

debug1: Exit status 127：这行信息显示了scp命令的退出状态码为127，通常意味着无法找到要执行的程序（例如，服务器端没有正确配置sftp-server

解决：

进入编译之后的openssh路径下。执行：

mkdir -p /usr/libexec/openssh/ && cp ./openssh-9.3p1/sftp-server /usr/libexec/openssh/

posted @ 2024-01-22 19:28  echo$?  阅读(1237)  评论(0)    收藏  举报