ssh 登录成功，但 scp 密码给了我“权限被拒绝”

Question

我正在尝试在组织的远程服务器上安装一些博客软件。我试图设置一个 SSH 密钥，但遇到了问题，并决定让博客启动和运行比处理 SSH 密钥问题更重要，所以我ssh-keygen -R remoteserver.com.

现在我可以使用ssh -v remoteuser@remoteserver.com正确的密码成功登录。登录后，我可以四处移动并读取我应该能够读取的任何文件和目录。

但是当我尝试-rw-r--r--使用 VIM编辑现有文件时，它显示为只读，如果我尝试编辑我获得的权限chmod: file.ext: Operation not permitted，如果我尝试scp从我的本地机器创建一个新文件，我会被提示输入远程用户的密码，然后得到scp: /home/path/to/file.ext: Permission denied。

由于在尝试设置 ssh 密钥之前我没有遇到任何这些问题，我怀疑这些异常是其副作用，但我不知道如何解决这个问题。那么像我这样愚蠢的服务器新手需要做什么才能恢复远程用户的编辑能力呢？

附录 1：

我的本地计算机和远程服务器之间的用户 ID 不同。

• 对于 ssh 我ssh -v remoteuser@remoteserver.com。
  • 如果whoami我得到remoteuser
• 对于scp file.ext remoteuser@remoteserver.com:/path/to/file.ext来自本地目录的scp I ，file.ext同时以本地用户身份登录。
  • 如果whoami我得到localuser

在ls -l两个不同的文件，我已经试过SCP：

-rw-r--r--@   1 localuser  localgroup    20 Feb 11 21:03 phpinfo.php
-rw-r--r--    1 root       localgroup     4 Feb 11 22:32 test.txt

该ls -l对我试着VIM文件：

-rw-r--r--   1 remoteuser  remotegroup      76 Jul 27  2009 info.txt

附录 2：

过去，我为 git 存储库设置了 ssh 密钥。我不想完全摧毁它们，所以为了遵循鹿的思路，我将 my 重命名~/.ssh/为~/.ssh-bak/，然后测试了不同类型的访问。终端命令和结果的简化版本如下；我认为一切都在工作，直到最后的第 8 行。

ssh -v

localcomputer:~ localuser$ ssh -v remoteuser@remoteserver.com
OpenSSH_5.2p1, OpenSSL 0.9.8l 5 Nov 2009
debug1: Reading configuration data /etc/ssh_config
debug1: Connecting to remoteserver.com [###.###.###.###] port 22.
debug1: Connection established.
debug1: identity file /Users/localuser/.ssh/identity type -1
debug1: identity file /Users/localuser/.ssh/id_rsa type -1
debug1: identity file /Users/localuser/.ssh/id_dsa type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.8p2 FreeBSD-20110503
debug1: match: OpenSSH_5.8p2 FreeBSD-20110503 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.2
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
The authenticity of host 'remoteserver.com (###.###.###.###)' can't be established.
RSA key fingerprint is ##:##:##:##:##:##:##:##:##:##:##:##:##:##:##:##.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'remoteserver.com,###.###.###.###' (RSA) to the list of known hosts.
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/localuser/.ssh/identity
debug1: Trying private key: /Users/localuser/.ssh/id_rsa
debug1: Trying private key: /Users/localuser/.ssh/id_dsa
debug1: Next authentication method: password
remoteuser@remoteserver.com's password: 
debug1: Authentication succeeded (password).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
Last login: Sun Feb 12 18:00:54 2012 from 68.69.164.123
FreeBSD 6.4-RELEASE-p8 (VKERN) #1 r101746: Mon Aug 30 10:34:40 MDT 2010

远程权限

[remoteuser@remoteserver /home]$ ls -l
total ###
-rw-r--r--   1 remoteuser remotegroup      76 Aug 12  2009 info.txt

[remoteuser@remoteserver /home]$ vim info.txt                                                                                                                                                                                                
~ {at the bottom of the VIM screen it tells me it's [read only]}                                                                                                                                                                                                    

[remoteuser@remoteserver /home]$ whoami 
remoteuser

[remoteuser@remoteserver /home]$ logout
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0
debug1: channel 0: free: client-session, nchannels 1
Connection to remoteserver.com closed.
Transferred: sent 3872, received 12496 bytes, in 107.4 seconds
Bytes per second: sent 36.1, received 116.4
debug1: Exit status 0

scp -v

localcomputer:localdirectory name$ scp -v phpinfo.php remoteuser@remoteserver.com:/home/www/remotedirectory/phpinfo.php
Executing: program /usr/bin/ssh host remoteserver.com, user remoteuser, command scp -v -t /home/www/remotedirectory/phpinfo.php
OpenSSH_5.2p1, OpenSSL 0.9.8l 5 Nov 2009
debug1: Reading configuration data /etc/ssh_config
debug1: Connecting to remoteserver.com [###.###.###.###] port 22.
debug1: Connection established.
debug1: identity file /Users/localuser/.ssh/identity type -1
debug1: identity file /Users/localuser/.ssh/id_rsa type -1
debug1: identity file /Users/localuser/.ssh/id_dsa type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.8p2 FreeBSD-20110503
debug1: match: OpenSSH_5.8p2 FreeBSD-20110503 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.2
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'remoteserver.com' is known and matches the RSA host key.
debug1: Found key in /Users/localuser/.ssh/known_hosts:1
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/localuser/.ssh/identity
debug1: Trying private key: /Users/localuser/.ssh/id_rsa
debug1: Trying private key: /Users/localuser/.ssh/id_dsa
debug1: Next authentication method: password
remoteuser@remoteserver.com's password: 
debug1: Authentication succeeded (password).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: Sending command: scp -v -t /home/www/remotedirectory/phpinfo.php
Sending file modes: C0644 20 phpinfo.php
Sink: C0644 20 phpinfo.php
scp: /home/www/remotedirectory/phpinfo.php: Permission denied
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: channel 0: free: client-session, nchannels 1
debug1: fd 0 clearing O_NONBLOCK
debug1: fd 1 clearing O_NONBLOCK
Transferred: sent 1456, received 2160 bytes, in 0.6 seconds
Bytes per second: sent 2322.3, received 3445.1
debug1: Exit status 1

Answer 1

好吧，我确实认为你最好的选择是让它与钥匙一起使用，但这里有两个选择

尝试删除~/.ssh/authorized-keys目录或整个目录~/.ssh/以消除关键残留物

尝试正确设置密钥并享受没有密码的乐趣！ https://blogs.oracle.com/jkini/entry/how_to_scp_scp_and