Deploy and tune 1.5 VSFTP deployment and optimization-1

The system comes with the FTP service software. Vsftpd

Installing VSFTPD

Yum Install-y vsftpd

Start VSFTPD

/ETC/INIT.D/VSFTPD start

If the boot fails, it may be that the port is occupied and all FTP services have 21 ports

Netstat-lnp

Killall PURE-FTPD

The default FTP service allows users of the system to log on

Change user's password is passwd plus username

passwd Wangshaojun

Log on to the remote machine

lftp [email protected]192.168. 1.117

Shared directory in the user's home directory, the command to view home directories is that the local machine

grep wangshaojun/etc/passwd

WANGSHAOJUN:X:500:500::/home/wangshaojun:/bin/bash

Create files and directories in your home directory

Mkdir/home/wangshaojun/aabb

touch/home/wangshaojun/1122. txt

On the remote machine LS. You can view the two files that you just created. or PWD to see where you are.

Because there are no restrictions on home directories, you can switch to any directory. This is a very dangerous behavior.

Restricting user access

Open the VSFTPD configuration file and remove the Chroot_local_user=yes comment

Vim/etc/vsftpd/vsftpd.conf

Chroot_local_user=yes

Restart VSFTPD

/ETC/INIT.D/VSFTPD restart

The remote machine then switches the directory display to fail, only in the current directory.

Deploy and tune 1.5 VSFTP deployment and optimization-1