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.sh JSJEMLab jsjemlab #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 "/lib/libcap.so.1";

#elif locate_library /lib/libcap.so.2; then

#echo "/lib/libcap.so.2";

#else

#locate_library /usr/lib/libcap.so && echo "-lcap";

#locate_library /lib/libcap.so && echo "-lcap";

#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 "root" for uploaded files is not

# 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 "SIZE /big/file" in ASCII mode. vsftpd

# 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.

#deny_email_enable=YES

# (default follows)

#banned_email_file=/etc/vsftpd.banned_emails

#

# You may specify an explicit list of local users to chroot() to their home

# directory. If chroot_local_user is YES, then this list becomes a list of

# users to NOT chroot().

#chroot_list_enable=YES

# (default follows)

#chroot_list_file=/etc/vsftpd.chroot_list

#

# You may activate the "-R" option to the builtin ls. This is disabled by

# default to avoid remote users being able to cause excessive I/O on large

# sites. However, some broken FTP clients such as "ncftp" and "mirror" assume # the presence of the "-R" option, so there is a strong case for enabling it.

ls_recurse_enable=YES

#

# When "listen" directive is enabled, vsftpd runs in standalone mode and

# listens on IPv4 sockets. This directive cannot be used in conjunction

# with the listen_ipv6 directive.

listen=YES

listen_port=21

#

# This directive enables listening on IPv6 sockets. To listen on IPv4 and IPv6 # sockets, you must run two copies of vsftpd whith two configuration files.

# Make sure, that one of the listen options is commented !!

#listen_ipv6=YES

系统信息查询

输入"uname -a ",可显示电脑以及操作系统的相关信息。

tftp配置

1.安装相应应用：

apt-get install tftp tftpd openbsd-inetd

apt-get install tftp-hpa xinetd

2.修改文件夹权限

chomd 777 /home/em/real210/tftpboot

3.将/etc/inetd.conf 修改成如下样子

tftp dgram udp wait nobody /usr/sbin/tcpd /usr/sbin/in.tftpd /home/em/real210/tftpboot

4.将/etc/xinetd.d/tftp 修改成如下样子（如果没有tftp文件就创建它）

service tftp

{

socket_type = dgram

protocol = udp

wait = yes

user = root

server = /usr/sbin/in.tftpd

server_args = -s /home/em/real210/tftpboot

disable = no

per_source = 11

cps = 100 2

flags = IPv4

}

5.将/etc/default/tftpd-hpa 修改成如下样子

RUN_DAEMON="no"

OPTIONS="-s /home/em/real210/tftpboot -c -p -U tftpd" 6.执行启动

/etc/init.d/openbsd-inetd reload

/etc/init.d/xinetd restart

in.tftpd -l /home/em/real210/tftpboot

7.嵌入式设备上的文件传输

ftp -g -r < filename >即可把虚机上的文件传到终端上nfs配置

1.安装相应服务器软件

apt-getinstall nfs-common nfs-kernel-server portmap

2.修改配置文档

vi /etc/exports

格式如下

3.重启mfs服务

service portmap start

service nfs-kernel-server start

showmount –e

4.在开发板上挂载nfs

mount -t nfs -o nolock <服务器ip>: /mnt （注：/mnt之前有空格）

5.取消nfs挂载

umount /mnt