54 Lessons (EXPORTFS commands, NFS client issues, FTP introduction, using VSFTPD to build FTP)

Exportfs command

The EXPORTFS command can add a shared directory without restarting the NFS service.

Test: First change the server-side NFS configuration file

[[email protected] ~]# vim /etc/exports       ##增加以下内容

/tmp   192.168.63.101(rw,sync,no_root_squash)              ##共享给192.168.63.101这个ip

Executive Exportfs-arv

[[email protected] ~]# exportfs -arv

Mount on client

[[email protected] ~]# mount -t nfs 192.168.63.100:/tmp/ /mnt/

Client builds a file under MNT

[[email protected] ~]# vim /mnt/han.txt

NFS Client Issues

Introduction to FTP

Using VSFTPD to build an FTP service

Installing VSFTPD

[[email protected] ~]# yum install -y vsftpd    

Create a user

[[email protected] ~]# useradd -s /sbin/nologin virftp    ##virftp这个名字可以随意写

Edit the virtual user's password file, in which you need to define a user name and password

[[email protected] ~]# vim /etc/vsftpd/vsftpd_login

Settings for permissions

[[email protected] ~]# chmod 600 /etc/vsftpd/vsftpd_login

Convert a text password file into a computer-recognized binary file

[[email protected] ~]# db_load -T -t hash -f /etc/vsftpd/vsftpd_login /etc/vsftpd/vsftpd_login.db

Create virtual users in the same directory as their configuration files. This directory is also custom-defined

[[email protected] ~]# mkdir /etc/vsftpd/vsftpd_user_conf

Enter into the/etc/vsftpd/vsftpd_user_conf directory. Create a profile for the first user, the profile name of the user he needs to be consistent with the user's name

[[email protected] vsftpd_user_conf]# vim testuser1

local_root=/home/virftp/testuser1anonymous_enable=NOwrite_enable=YESlocal_umask=022anon_upload_enable=NOanon_mkdir_write_enable=NOidle_session_timeout=600data_connection_timeout=120max_clients=10

After you define a virtual user, create a user's home directory

[[email protected] vsftpd_user_conf]# mkdir /home/virftp/testuser1

When you create a file

[[email protected] vsftpd_user_conf]# touch /home/virftp/testuser1/hanshuo.txt

Permissions modification

[[email protected] vsftpd_user_conf]# chown -R virftp:virftp /home/virftp

Defining where a password file is important

[[email protected] vsftpd_user_conf]# vim /etc/pam.d/vsftpd    ##这是用来认证的一个文件

auth sufficient /lib64/security/pam_userdb.so db=/etc/vsftpd/vsftpd_loginaccount sufficient /lib64/security/pam_userdb.so db=/etc/vsftpd/vsftpd_login

Edit the VSFTPD Master profile

[[email protected] vsftpd_user_conf]# vim /etc/vsftpd/vsftpd.conf

将anonymous_enable=YES 改为 anonymous_enable=NO      ##不允许匿名用户 将#anon_upload_enable=YES 改为 anon_upload_enable=NO       将#anon_mkdir_write_enable=YES 改为 anon_mkdir_write_enable=NO  ##不允许创建用户  再增加如下内容chroot_local_user=YESguest_enable=YESguest_username=virftpvirtual_use_local_privs=YESuser_config_dir=/etc/vsftpd/vsftpd_user_confallow_writeable_chroot=YES

Start

54 Lessons (EXPORTFS commands, NFS client issues, FTP introductions, using VSFTPD to build FTP)