按照网上的办法改了/etc/samba/smb.conf配置文件，结果在Win7里面就是连不上，后来发现是防火墙的问题。
有两个命令必须要执行：
1、将SELinux设置成disabled或者permissive
setenforce 0
2、关闭防火墙服务
service iptables stop
若SElinux啟用中，在Windows檔案總管無法連到 Samba 所分享出來的目錄時，
在Linux 中，可執行下列指令：
setsebool -P samba_enable_home_dirs on
參考文件： /etc/samba/smb.conf
#---------------
# SELINUX NOTES:
# 分享群組
# If you want to use the useradd/groupadd family of binaries please run:
# setsebool -P samba_domain_controller on
#
# 分享home目錄
# If you want to share home directories via samba please run:
# setsebool -P samba_enable_home_dirs on
#
# If you create a new directory you want to share you should mark it as
# "samba-share_t" so that selinux will let you write into it.
# Make sure not to do that on system directories as they may already have
# been marked with othe SELinux labels.
#
# Use ls -ldZ /path to see which context a directory has
#
# Set labels only on directories you created!
# To set a label use the following: chcon -t samba_share_t /path
#
# If you need to share a system created directory you can use one of the
# following (read-only/read-write):
# setsebool -P samba_export_all_ro on
# or
# setsebool -P samba_export_all_rw on
#
# If you want to run scripts (preexec/root prexec/print command/...) please
# put them into the /var/lib/samba/scripts directory so that smbd will be
# allowed to run them.
# Make sure you COPY them and not MOVE them so that the right SELinux context
# is applied, to check all is ok use restorecon -R -v /var/lib/samba/scripts
#
#--------------
#
iptables开机自动启动：
开启： chkconfig iptables on
关闭： chkconfig iptables off
iptables关闭服务：
开启： service iptables start
关闭： service iptables stop
chkconfig --level 35 nmb on
chkconfig --level 35 smb on
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