First contact: hp server Z240

Server connections outside the network!
1.ping gateway (can pass the next step)
2.ping www.baidu.com
not, please check the dns
vim /etc/resolv.conf
nameserver 114.114.114.114

The server has two external network ports, attention in the allocation of

                 ** CentOS7 安装SFTP操作教程**

1. View openssh version (openssh version must be greater than 4.8p1)
   SSH -V

2. Creating sftp group
   groupadd sftp

3. Creating sftp user
   useradd -g sftp -s / sbin / nologin -M sftp
   passwd sftp
   password

4. Create a directory
   mkdir -p / the Data / SFTP / mysftp
   the usermod -d / the Data / SFTP / SFTP mysftp

5. Modify sshd_config
   vim / etc / SSH / sshd_config
   commented

   Subsystem sftp /usr/libexec/openssh/sftp-server

最后添加
Subsystem sftp internal-sftp
Match Group sftp
ChrootDirectory /data/sftp/mysftp
ForceCommand internal-sftp
AllowTcpForwarding no
X11Forwarding no

6. Set Chroot directory permissions
   chown root: SFTP / the Data / SFTP / mysftp
   chmod 755 / the Data / SFTP / mysftp

After completion of the above, you can see the landing.

7. Settings can be written directory
   mkdir / Data / SFTP / mysftp / Upload
   chown SFTP: SFTP / Data / SFTP / mysftp / Upload
   the chmod 755 / Data / SFTP / mysftp / Upload

Close SELinux:
Vim / etc / SELinux / config
file is modified to SELINUX = enforcing SELINUX = disabled, then save

Execution:
setenforce 0

service sshd restart
或
systemctl restart sshd.service

Test
sftp [email protected]