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没有密码的 ssh localhost 在 Fedora 14 上不起作用

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没有密码的 ssh localhost 在 Fedora 14 上不起作用

我执行：

$ ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa 
$ cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

然后/etc/ssh/sshd_config更改StrictModes为no并重新启动 sshd。

我有：

$ ssh localhost
Agent admitted failure to sign using the key.
dev@localhost's password:

怎么了？如何实现ssh localhost无密码工作？

更新：

$ ssh -v localhost
OpenSSH_5.5p1, OpenSSL 1.0.0e-fips 6 Sep 2011
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to localhost [127.0.0.1] port 22.
debug1: Connection established.
debug1: identity file /home/dev/.ssh/id_rsa type 1
debug1: identity file /home/dev/.ssh/id_rsa-cert type -1
debug1: identity file /home/dev/.ssh/id_dsa type 2
debug1: identity file /home/dev/.ssh/id_dsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.5
debug1: match: OpenSSH_5.5 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.5
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 'localhost' is known and matches the RSA host key.
debug1: Found key in /home/dev/.ssh/known_hosts:16
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug1: Next authentication method: gssapi-keyex
debug1: No valid Key exchange context
debug1: Next authentication method: gssapi-with-mic
debug1: Unspecified GSS failure.  Minor code may provide more information
Credentials cache file '/tmp/krb5cc_500' not found

debug1: Unspecified GSS failure.  Minor code may provide more information
Credentials cache file '/tmp/krb5cc_500' not found

debug1: Unspecified GSS failure.  Minor code may provide more information


debug1: Next authentication method: publickey
debug1: Offering public key: /home/dev/.ssh/id_rsa
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug1: Offering public key: /home/dev/.ssh/id_dsa
debug1: Server accepts key: pkalg ssh-dss blen 434
Agent admitted failure to sign using the key.
debug1: Next authentication method: password

答案1

~/.ssh/authorized_keys尝试设置文件和文件夹的权限~/.ssh/：

chmod go-w $HOME/.ssh
chmod 600 $HOME/.ssh/authorized_keys
chown `whoami` $HOME/.ssh/authorized_keys

来源：http://www.openssh.org/faq.html#3.14

答案2

在我的情况下检查 SELinux 的可通过问题我必须

ausearch -c 'sshd' --raw | audit2allow -M my-sshd
semodule -i my-sshd.pp
/sbin/restorecon -v /home/xxxxxx/.ssh/authorized_keys

答案3

将您的公钥添加到authorized_keys中。

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