我的权限如下所示：
-rw-------. 1 smpadmin staff 400 May 21 2014 id_rsa.pub
-rw-r--r--. 1 smpadmin staff 505 Dec 14 19:19 known_hosts
drwxr-xr-x. 45 smpadmin staff 4096 Jan 20 09:53 ..
-rw-r--r--. 1 smpadmin staff 386 Jan 20 10:32 config
-rwx------. 1 smpadmin staff 400 Jan 20 10:34 authorized_keys
-rwx------. 1 smpadmin staff 400 Jan 20 10:37 authorized_keys2
drwx------. 2 smpadmin staff 4096 Jan 20 10:37 .
日志：
debug3: record_hostkey: found key type RSA in file /home/alejanpi/.ssh/known_hosts:85
debug3: load_hostkeys: loaded 1 keys from x.x.150.86
debug1: Host 'x.x.150.86' is known and matches the RSA host key.
debug1: Found key in /home/alejanpi/.ssh/known_hosts:85
debug2: bits set: 1525/3072
debug2: set_newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug2: set_newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug2: key: /home/alejanpi/.ssh/id_rsa (0x60005ff50),
debug2: key: /home/alejanpi/.ssh/id_dsa (0x0),
debug2: key: /home/alejanpi/.ssh/id_ecdsa (0x0),
debug2: key: /home/alejanpi/.ssh/id_ed25519 (0x0),
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug3: start over, passed a different list publickey,gssapi-keyex,gssapi-with-mic,password
debug3: preferred 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/alejanpi/.ssh/id_rsa
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug1: Trying private key: /home/alejanpi/.ssh/id_dsa
debug3: no such identity: /home/alejanpi/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /home/alejanpi/.ssh/id_ecdsa
debug3: no such identity: /home/alejanpi/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /home/alejanpi/.ssh/id_ed25519
debug3: no such identity: /home/alejanpi/.ssh/id_ed25519: No such file or directory
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
[email protected]'s password:
我将公钥添加到两个授权密钥文件中。
通过与我有相同密钥工作的另一台服务器进行比较，该服务器上的日志在某个时刻显示：
Server accepts key: pkalg ssh-rsa blen 277
我还注意到这部分日志中有不同的十六进制代码：
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug2: key: /home/alejanpi/.ssh/id_rsa (0x60006c5f0),
现在，对于我的密钥不起作用的服务器，/home 曾经位于 / 上，但我将其安装到不同的磁盘上。在我搬到 /home 之前，我的钥匙曾经可以使用。不确定这是否对我有影响，但我认为值得一提。这就是我安装回家的方式：
UUID=143f3a8a-55f3-41e4-8797-d1cdb0435c13 /home ext4 defaults 0 2
SELinux 权限。
drwx------. smpadmin staff unconfined_u:object_r:ssh_home_t:s0 .
drwxr-xr-x. smpadmin staff unconfined_u:object_r:user_home_dir_t:s0 ..
-rwx------. smpadmin staff unconfined_u:object_r:ssh_home_t:s0 authorized_keys
-rwx------. smpadmin staff unconfined_u:object_r:ssh_home_t:s0 authorized_keys2
-rw-r--r--. smpadmin staff unconfined_u:object_r:ssh_home_t:s0 config
-rw-------. smpadmin staff unconfined_u:object_r:ssh_home_t:s0 environment
-rw-------. smpadmin staff unconfined_u:object_r:ssh_home_t:s0 id_rsa.pub
-rw-r--r--. smpadmin staff unconfined_u:object_r:ssh_home_t:s0 known_hosts
主目录有：drwxr-xr-x。 root root system_u:object_r:file_t:s0 home
答案1
也许您没有在寻找正确的权限集。
如果可以的话，您是否尝试过暂时禁用 SELinux？
在服务器中您尝试访问控制台：
# setenforce 0
并尝试再次访问。
如果有效，则属于 SELinux 相关问题。
然后，如果您想解决问题，请获得正确的权限。
首先查看该文件的 ACL：
# ls -alZ authorized_keys
-rw-r--r--. root root unconfined_u:object_r:ssh_home_t:s0 authorized_keys
如果它没有显示 unconfined_u:object_r:ssh_home_t:s0 则使用 chcon 更改权限
# chcon unconfined_u:object_r:ssh_home_t:s0 authorized_keys
答案2
您正在尝试对用户进行身份验证，并向我们展示（至少根据所有者/组）smpadmin的权限。~user/.ssh
该目录~/.ssh应由主目录的所有者拥有，就像其中的所有其他文件一样。您从不同的用户复制了它，但没有更改所有者，或者您正在连接到错误的用户。