File services on Linux

Major file Services Vsftp, Samba, NFS

Contrast:

File Share (Network Places)

server name	User Client platform	Use range	Service port
ftp	windows/ Linux/unix/macos	Publishing site, file sharing	Tcp/21
Samba	windows	tcp/445,tcp/139
	linux/unix	Web Publishing, file Sharing (Mount)	tcp/2049

First, FTP construction:

1. Build FTP service with vsftpd :

Introduction :

Security is the original intention of writing vsftp, in addition to the inherent safety features, high speed and high stability is also two important characteristics of vsftp.

is Sentos or Redhat on the FTP software, not installed by default, generally perform Yum installation

installation :

Check whether to install vsftp package # rpm–QA | grep vsftpd

Yum install-y vsftpd db4-utils//Here Db4-utils used to generate the password file

Create an account :

VSFTP Support System account login, for security reasons we use virtual account login

#useradd-virftp-s/sbin/nologin

To create a configuration file for a virtual account:

#vim/etc/vsftpd/vsftpd_login

test1 123456 Test2abcdef
#该文件存储用户和密码, odd-numbered user name, even-numbered behavior password

Set permissions for security reasons

#chmod 600/etc/vsftpd/vsftpd_login

The password used by VSFTPD is not clear text and now generates the corresponding library file using the user & password file:

#db_load-T-t hash-f/etc/vsftpd/vsftpd_login/etc/vsftpd/vsftpd_login.db

Finally, create the directory and configuration file associated with the virtual account as follows:

#mkdir/etc/vsftpd/user_conf//This path is consistent with the User Configuration directory settings in the global configuration file

Create and user-corresponding profiles

Each user has a corresponding profile, file name and user name that have been used to customize the user Configuration

Switch to the user_conf created above

#vim test1

local_root=/home/virftp/Test1
Anonymous_enable=nowrite_enable=yeslocal_umask=022anon_upload_enable= noanon_mkdir_write_enable=noidle_session_timeout=data_connection_timeout =max_clients=tenmax_per_ip=5local_max_rate =50000
The meaning of each parameter should not be difficult to understand according to the literal meaning

#mkdir/home/virftp/test1; Touch Test.txt

#chown-R virftp.virftp/home/virftp

#vim/etc/pam.d/vsftpd//Add at the beginning

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

CentOS is 64-bit, so the library file path is/lib64/security/pam_userdb.so (32-bit for/lib/security/pam_userdb.so)

To Modify the global configuration file/etc/vsftpd/vsftpd.conf

In addition to modifying our user profiles, we also need to modify some of the global configuration files

Vim/etc/vsftpd/vsftpd.conf

Modify
anonymous_enable=noanon_upload_enable=noanon_mkdir_write_enable=no

Increase

chroot_local_user=yesguest_enable=yesguest_username=virftpvirtual_use_local_privs=YESuser_ config_dir=/etc/vsftpd/user_confallow_writeable_chroot=yes    

Start:

#service vsftpd Start

Test: Install client fear Lftp

#yum Install Lftp

#lftp [email protected]

Password:
lftp [email protected]:~> ls
-rw-r--r--1 503 504 Dec 13:37 text.txt

　　

File services on Linux