CentOS install Samba server

// install
# yum install samba samba-client samba-common -y

// firewall
# vi /etc/sysconfig/iptables
-A INPUT -m state --state NEW -m udp -p udp --dport 137 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 138 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 139 -j ACCEPT

# /etc/init.d/iptables restart

// add samba user
# smbpasswd -a user1 // 須在系統上有相同的帳號

// set share directory
# vi /etc/samba/smb.conf

[global]
    security = user

[share]
     comment = Share Storage
     path = /mnt/datadisk
     browsable = yes
     guest ok = yes
     read only = no
     valid users = user1 user2

// restart services
# /etc/init.d/smb restart

Reference :
Samba Add a User