samba 的问题,求救！！！急！！！

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samba 的问题,求救！！！
我的redhat9.0是刚装的，samba,conf中我只添一个共享目录，其他设置是系统默认的，安全级别是user,用户名我也加了，但同局域网中的其他pc包括windows和linux suse都看不到我的主机，我敲入命令smbstatus后系统提示
Failed to open byte range locking database
ERROR:Failed to intialise locking database
Can't initialise locking module-exiting
很是郁闷，请各位高手指点！！！
下面是我的smb.conf
#======================= Global Settings =====================================
[global]

# workgroup = NT-Domain-Name or Workgroup-Name
workgroup = WORKGROUP

# server string is the equivalent of the NT Description field
server string = lq's Samba Server

# This option is important for security. It allows you to restrict
# connections to machines which are on your local network. The
# following example restricts access to two C class networks and
# the "loopback" interface. For more examples of the syntax see
# the smb.conf man page
; hosts allow = 192.168.1. 192.168.2. 127.


printcap name = /etc/printcap
load printers = yes


printing = cups


# this tells Samba to use a separate log file for each machine
# that connects
log file = /var/log/samba/%m.log

# Put a capping on the size of the log files (in Kb).
max log size = 0

# Security mode. Most people will want user level security. See
# security_level.txt for details.
security = user

# You may wish to use password encryption. Please read
# ENCRYPTION.txt, Win95.txt and WinNT.txt in the Samba documentation.
# Do not enable this option unless you have read those documents
encrypt passwords = yes
smb passwd file = /etc/samba/smbpasswd


# The following are needed to allow password changing from Windows to
# update the Linux system password also.
# NOTE: Use these with 'encrypt passwords' and 'smb passwd file' above.
# NOTE2: You do NOT need these to allow workstations to change only
# the encrypted SMB passwords. They allow the Unix password
# to be kept in sync with the SMB password.
unix password sync = Yes
passwd program = /usr/bin/passwd %u
passwd chat = *New*password* %n\n *Retype*new*password* %n\n *passwd:*all*authentication*tokens*updated*successfully*


# chat parameter for most setups.

pam password change = yes

# Unix users can map to different SMB User names
; username map = /etc/samba/smbusers

# Using the following line enables you to customise your configuration
# on a per machine basis. The %m gets replaced with the netbios name
# of the machine that is connecting
; include = /etc/samba/smb.conf.%m


# for authentication in the case of encrypt passwords = yes

obey pam restrictions = yes

# Most people will find that this option gives better performance.
# See speed.txt and the manual pages for details
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192

# Configure Samba to use multiple interfaces
# If you have multiple network interfaces then you must list them
# here. See the man page for details.
; interfaces = 192.168.12.2/24 192.168.13.2/24

# Configure remote browse list synchronisation here
# request announcement to, or browse list sync from:
# a specific host or from / to a whole subnet (see below)
; remote browse sync = 192.168.3.25 192.168.5.255
# Cause this host to announce itself to local subnets here
; remote announce = 192.168.1.255 192.168.2.44


# OS Level determines the precedence of this server in master browser
# elections. The default value should be reasonable
; os level = 33



# Where to store roving profiles (only for Win95 and WinNT)
# %L substitutes for this servers netbios name, %U is username
# You must uncomment the [Profiles] share below
; logon path = \\%L\Profiles\%U



# DNS Proxy - tells Samba whether or not to try to resolve NetBIOS names
# via DNS nslookups. The built-in default for versions 1.9.17 is yes,
# this has been changed in version 1.9.18 to no.
dns proxy = no


#============================ Share Definitions ==============================
[homes]
comment = Home Directories
browseable = no
writable = yes
valid users = %S
create mode = 0664
directory mode = 0775


# NOTE: If you have a BSD-style print system there is no need to
# specifically define each individual printer
[printers]
comment = All Printers
path = /var/spool/samba
browseable = no
# Set public = yes to allow user 'guest account' to print
guest ok = no
writable = no
printable = yes
[linux]
comment = liquan's share folder
path = /home/lq/Linux
valid users = lq
public = no
writable = no
create mask = 0765

后来我又发现当我从字符界面切换入图形界面时会提示：
无法查到hn.kd.py.adsl的互联网地址，这将妨碍GNOME正常操作。把hn.kd.py.adsl加入到/etc/hosts文件中也许能解决这个问题
但我不知道如何加？？？/etc/hosts不是用来进行域名解析的吗？

当我在图形界面下点击网络服务时提示：
因为Nautilus 无法联系SMB住浏览器，所有无法显示“smb:///"情检查并确定局域网内有无正在运行的SMB服务器