使用到的源码包为：stupid-ftpd-1.5beta.tar.gz
下载地址：
https://sourceforge.net/projects/stupid-ftpd/files/stupid-ftpd/V1_5beta/
1、解压源码包
tar -vxf stupid-ftpd-1.5beta.tar.gz
2、进入解压生成的stupid-ftpd目录
3、修改stupid-ftpd.conf配置文件
#serverroot=/usr/home/cinek/tmp3/aaa
serverroot=/home/ftp
#port=2121
port=21
4、make生成stupid-ftpd.Linux6脚本（不用make install）
在当前目录下执行
./stupid-ftpd.Linux6 -f stupid-ftpd.conf
可以看到如下消息
root@ubuntu:/home/chemi/neo/ftp/stupid-ftpd# ls
BUILD.AIX command.h ftpdconfig.c Makefile Makefile.win stupid-ftpd.h
BUILD.Linux5 command.o ftpdconfig.h Makefile.AIX README Stupid-FTPD.INI
BUILD.Linux6 COPYING ftpdconfig.o Makefile.Linux5 servercommand.c stupid-ftpd.Linux6
BUILD.SCO CREDITS ftperror.h Makefile.Linux6 servercommand.h stupid-ftpd.o
BUILD.SunOS ftpcommand.c ls.c Makefile.SCO TODO
CHANGES ftpcommand.h ls.h Makefile.Solaris stupid-ftpd.c
command.c ftpcommand.o ls.o Makefile.SunOS stupid-ftpd.conf
root@ubuntu:/home/ftp/stupid-ftpd# ./stupid-ftpd.Linux6 -f stupid-ftpd.conf
User anonymous registered.
Starting server ... OK
*ftpd>
此时ftp服务器就运行起来了。该系统的ip地址为“192.168.0.71”
验证
① 在另一个终端上执行：ftp 192.168.0.71
用户名输入：anonymous
密码输入： （空格）
如下所示
root@ubuntu:/home# ftp 192.168.0.71
Connected to 192.168.0.71.
220 Welcome to Stupid-FTPd server.
Name (192.168.0.71:root): anonymous
331 Guest login ok, send your e-mail address as password.
Password:
230 User anonymous logged in.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> ls
200 PORT command successful.
150 OK
drwxr-xr-x 3 anonymous ftp 4096 Nov 30 03:52 test
drwxr-xr-x 3 anonymous ftp 4096 Nov 30 06:19 stupid-ftpd
-rw-r--r-- 1 anonymous ftp 34487 Nov 29 11:47 stupid-ftpd-1.5beta.tar.gz
226 Transfer complete.
ftp>
② 在浏览器上输入：ftp://192.168.0.71/
如下图所示
③ 在计算机地址栏输入：ftp://192.168.0.71/
如下图所示
如果修改Makefile中CC=gcc 为自己的交叉编译器，即可以编译出在板子上运行的ftp服务器。
通过以上操作，可以方便在主机之间传递文件（当然，使用最多还是ssh）。
具体ftp的get文件和put文件操作，可以参考：
https://linux.cn/article-6746-1.html
参考链接：
https://blog.csdn.net/u011251940/article/details/78781952
2018.12.3更新:
自己配置使用的Makefile：
#
# This is a config-file for stupid-ftpd
# ------------------------------------
#
# The standard path should be /etc/stupid-ftpd.conf
# You can define other paths by using the "-f" option
# when starting stupid-ftpd.
#
#
# ATTENTION: 1) Remember, that the server is running with YOUR permissions.
# It will fail to access other users directory, unless it is
# root, but it also allows to access ALL YOUR directories,
# which are deeper in a user's root-dir and YOU HAVE access to.
# 2) To solve the problem, the best way is to define a group-ID
# for stupid-ftpd.
# Or if you aren't root: set the MAIN root (serverroot=) to
# the highest directory depth which is possible.
# 3) REMEMBER: DO NOT PUT THIS FILE in an accessible directory!!!
# There are passwords defined here. The safest place is
# outside the serverroot.
# Server operation mode:
# daemon - quiet in background
# interactive - standard mode
#交互式的形式运行
#mode=interactive
#以守护进程的形式运行在后台
mode=daemon
# chroot to
#serverroot=/usr/home/cinek/tmp3/aaa
serverroot=/home/neo/ftp
# type of chroot
# real - kernel chroot(), high security, but needs root privileges
# virtual - no real chroot(), software side (virtual) chroot
changeroottype=real
# Port number for the FTP-Protocol
#port=2121
port=21
# Maximum users allowed to log in
maxusers=10
# Message Of The Day (motd)
# It will be displayed after the login procedure.
#motd=/tmp/stupid-ftpd.motd
# Message on quit
# It will be displayed when quitting.
#byemsg=/tmp/stupid-ftpd.bye
# Log
#log=/tmp/stupid-ftpd.log
# User list:
# Format: user=<login> <passwd> <subdir> <maxlogins> <flags>
# <login> user name
# <passwd> password or * for anonymous access
# <subdir> (internally appended to serverroot)
# the user has access to the WHOLE SUBTREE,
# if the server has access to it
# <maxlogins> maximal logins with this usertype
# <flags> D - download
# U - upload + making directories
# O - overwrite existing files
# M - allows multiple logins
# E - allows erase operations
# A - allows EVERYTHING(!)
#
# user ftp is mapped to user anonymous, don't forget this
#
# Examples:
# user=user1 passx /tmp 2 D
# - login: user1, passwd: passx, max login twice (different IPs!)
# only download rights from directory /tmp
# user=user2 passy /home/user2 0 DU
# - login: user2, passwd: passy, no login count limit (different IPs!)
# download+upload rights to directory /home/user2
# user=user3 passz /home/user3 5 DUOM
# - login: user3, passwd: passz, max login count 5 (even from same IP)
# download+upload+overwrite rights to directory /home/user3
# user=user4 passq /tmp 10 -
# - login: user4, passwd: passq, max login count 10 (even from same IP)
# look-only rights at directory /tmp
#
# SEE: ATTENTION remark on the top of this file !!!
#user=anonymous * / 5 A
#user=neo neo /home/neo/ftp/test 5 A
user=neo neo / 5 A
# Banned hosts
# "*" and "?" are allowed here
#ban=192.168.*
#ban=localhost
#ban=*.banme.com
# Ban message (displayed to user who is banned)
# Please don't use more than 70 characters.
#banmsg=Go away !
# Login/password timeout
login-timeout=120
# Timeout (while logged in)
timeout=240