嵌入式linux ftp、tftp、nfs环境配置

wlan密码配置及DHCP服务开启

可以将WIFI启动命令写进/etc/init.d/rcS，启动时自动连接WIFI

如果vi /etc/init.d/rcS 修改，出现readOnly 现象，则使用 mount -o remount, rw / 命令。 ifconfig eth0 down

sleep 2 #这个延时经验证是需要的，要等到wifi的驱动模块加载完成才能进行下面的配置指令

ifconfig wlan0 up #打开wlan0 sleep 1

wlan.shJSJEMLabjsjemlab #输入wifi的账号密码 sleep 1

udhcpc -i wlan0 #使用自动分配IP

简单的脚本编写

1.创建一个脚本文件

vi ./wifi_conf

2.添加权限

chmod +x <文件位置>

3.运行脚本文件

./xxx

ftp服务器搭建

一>编译vsftpd程序

1. 获得源码包：vsftpd-2.1.2.tar.gz（位置：光盘资料/源码包/其他软件源码） 2. 解压，进入源码目录：

tar xzvf vsftpd-2.1.2.tar.gz cd vsftpd-2.1.2

3. 修改Makefile，指定交叉编译器： CC = arm-linux-gcc 4. #make

编译时会出现错误，跟libcap.so有关 修改vsf_findlibs.sh: 45-53行注释掉：

Look for libcap (capabilities)

#if locate_library /lib/libcap.so.1; then #echo \

#elif locate_library /lib/libcap.so.2; then #echo \#else

#locate_library /usr/lib/libcap.so && echo \#locate_library /lib/libcap.so && echo \#fi

#make

生成vsftpd可执行程序，放到根文件系统/usr/sbin目录下

二>修改配置文件vsftpd.conf

需要用到哪一项，就把这一项前面的注释‘#’去掉，这里给出我的配置： anonymous_enable=NO no_anon_password=YES local_enable=YES write_enable=YES local_umask=022

anon_upload_enable=YES

anon_mkdir_write_enable=YES anon_other_write_enable=YES dirmessage_enable=YES xferlog_enable=YES

connect_from_port_20=YES chown_uploads=YES

xferlog_file=/var/log/vsftpd.log xferlog_std_format=YES async_abor_enable=YES ascii_upload_enable=YES ascii_download_enable=YES

ftpd_banner=Welcome to blah FTP service. ls_recurse_enable=YES listen=YES

listen_port=21

把修改后的vsftpd.conf文件放到根文件系统的/etc/vsftpd目录下，否则运行里会出错：500 OOPS vsftpd: cannot open config

三>创建ftp目录

1. 建立FTP目录： mkdir -p /var/ftp/pub 3

因为ftp目录不能开启所有权限，所以建一个pub目录加上所有权限，用来传输文件 mkdir -p /usr/share/empty 程序运行所用到的目录 2. 改变目录权限

chown root:root /var/ftp chmod 755 /var/ftp cd /var/ftp

chmod 777 pub

四>在开发板上运行vsftpd

把制作好的文件系统下载到开发板上，在后台运行程序： # vsftpd /etc/vsftpd/vsftpd.conf&

可用的文档：

# Example config file /etc/vsftpd.conf

#

# The default compiled in settings are fairly paranoid. This sample file # loosens things up a bit, to make the ftp daemon more usable. # Please see vsftpd.conf.5 for all compiled in defaults. #

# READ THIS: This example file is NOT an exhaustive list of vsftpd options. # Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's # capabilities. #

# Allow anonymous FTP? (Beware - allowed by default if you comment this out). anonymous_enable=NO no_anon_password=YES #

# Uncomment this to allow local users to log in. local_enable=YES #

# Uncomment this to enable any form of FTP write command. write_enable=YES #

# Default umask for local users is 077. You may wish to change this to 022, # if your users expect that (022 is used by most other ftpd's) local_umask=022 #

# Uncomment this to allow the anonymous FTP user to upload files. This only # has an effect if the above global write enable is activated. Also, you will # obviously need to create a directory writable by the FTP user. anon_upload_enable=YES #

# Uncomment this if you want the anonymous FTP user to be able to create # new directories.

anon_mkdir_write_enable=YES anon_other_write_enable=YES #

# Activate directory messages - messages given to remote users when they # go into a certain directory. dirmessage_enable=YES #

# Activate logging of uploads/downloads. xferlog_enable=YES #

# Make sure PORT transfer connections originate from port 20 (ftp-data). connect_from_port_20=YES #

# If you want, you can arrange for uploaded anonymous files to be owned by

# a different user. Note! Using \# recommended! chown_uploads=YES

#chown_username=whoever #

# You may override where the log file goes if you like. The default is shown # below.

xferlog_file=/var/log/vsftpd.log #

# If you want, you can have your log file in standard ftpd xferlog format. # Note that the default log file location is /var/log/xferlog in this case. xferlog_std_format=YES #

# You may change the default value for timing out an idle session. #idle_session_timeout=600 #

# You may change the default value for timing out a data connection. #data_connection_timeout=120 #

# It is recommended that you define on your system a unique user which the # ftp server can use as a totally isolated and unprivileged user. #nopriv_user=ftpsecure #

# Enable this and the server will recognise asynchronous ABOR requests. Not # recommended for security (the code is non-trivial). Not enabling it, # however, may confuse older FTP clients. async_abor_enable=YES #

# By default the server will pretend to allow ASCII mode but in fact ignore # the request. Turn on the below options to have the server actually do ASCII # mangling on files when in ASCII mode.

# Beware that on some FTP servers, ASCII support allows a denial of service # attack (DoS) via the command \# predicted this attack and has always been safe, reporting the size of the # raw file.

# ASCII mangling is a horrible feature of the protocol. ascii_upload_enable=YES ascii_download_enable=YES #

# You may fully customise the login banner string: ftpd_banner=Welcome to blah FTP service. #

# You may specify a file of disallowed anonymous e-mail addresses. Apparently # useful for combatting certain DoS attacks.

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