令人沮丧的是，SFTP 用户突然无法连接到我的 Amazon Linux 服务器。
/var/log/secure 显示以下错误：
sshd[7291]: fatal: safely_chroot: stat("/chroot/uhleeka"): Permission denied [postauth]
/var/日志/安全：
==> /var/log/secure <==
Nov 21 23:49:23 amzl-lamp sshd[7291]: Accepted password for uhleeka from 172.31.0.254 port 47170 ssh2
Nov 21 23:49:24 amzl-lamp sshd[7291]: pam_unix(sshd:session): session opened for user uhleeka by (uid=0)
Nov 21 23:49:24 amzl-lamp sshd[7291]: fatal: safely_chroot: stat("/chroot/uhleeka"): Permission denied [postauth]
Nov 21 23:49:24 amzl-lamp sshd[7291]: pam_unix(sshd:session): session closed for user uhleeka
SSHD 的调试输出：
$ /usr/sbin/sshd -ddd -p 33333
...
debug1: SELinux support disabled
debug1: …