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出处:Unix爱好者家园unix-cd.com
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加入以下资料在 /etc/passwd ,这个例子选择 /export/ftp 作为 anonymous ftp area。设定为不能看见 Shell 的內容 /nosuchshell。
ftp:x:30000:30000:Anonymous FTP:/export/ftp:/nosuchshell
加入以下资料在 /etc/shadow
ftp:NP:6445::::::
以下shell script用來设定anonymous ftp area
把以下內容放入 /etc/ftpanonymous
#!/bin/sh # script to setup anonymous ftp area #
# verify you are root /usr/bin/id | grep -w 'uid=0' >/dev/null 2>&1 if [ "$?" != "0" ]; then echo exit 1 fi
# handle the optional command line argument case $# in
# the default location for the anon ftp comes from the passwd file 0) ftphome="`getent passwd ftp | cut -d: -f6`" ;;
1) if [ "$1" = "start" ]; then ftphome="`getent passwd ftp | cut -d: -f6`" else ftphome=$1 fi ;; *) echo "Usage: $0 [anon-ftp-root]" exit 1 ;; esac
if [ -z "${ftphome}" ]; then echo "$0: ftphome must be non-null" exit 2 fi
case ${ftphome} in /*) # ok ;;
*) echo "$0: ftphome must be an absolute pathname" exit 1 ;; esac
# This script assumes that ftphome is neither / nor /usr so ... if [ -z "${ftphome}" -o "${ftphome}" = "/" -o "${ftphome}" = "/usr" ]; then echo "$0: ftphome must be non-null and neither / or /usr" exit 2 fi
# If ftphome does not exist but parent does, create ftphome if [ ! -d ${ftphome} ]; then # lack of -p below is intentional mkdir ${ftphome} fi chown root ${ftphome} chmod 555 ${ftphome}
echo Setting up anonymous ftp area ${ftphome}
# Ensure that the /usr directory exists if [ ! -d ${ftphome}/usr ]; then mkdir -p ${ftphome}/usr fi # Now set the ownership and modes to match the man page chown root ${ftphome}/usr chmod 555 ${ftphome}/usr
# Ensure that the /usr/bin directory exists if [ ! -d ${ftphome}/usr/bin ]; then mkdir -p ${ftphome}/usr/bin fi # Now set the ownership and modes to match the man page chown root ${ftphome}/usr/bin chmod 555 ${ftphome}/usr/bin
# this may not be the right thing to do # but we need the bin -> usr/bin link rm -f ${ftphome}/bin ln -s usr/bin ${ftphome}/bin
# Ensure that the /usr/lib and /etc directories exist if [ ! -d ${ftphome}/usr/lib ]; then mkdir -p ${ftphome}/usr/lib fi chown root ${ftphome}/usr/lib chmod 555 ${ftphome}/usr/lib
if [ ! -d ${ftphome}/usr/lib/security ]; then mkdir -p ${ftphome}/usr/lib/security fi chown root ${ftphome}/usr/lib/security chmod 555 ${ftphome}/usr/lib/security
if [ ! -d ${ftphome}/etc ]; then mkdir -p ${ftphome}/etc fi chown root ${ftphome}/etc chmod 555 ${ftphome}/etc
# a list of all the commands that should be copied to ${ftphome}/usr/bin # /usr/bin/ls is needed at a minimum. ftpcmd="/usr/bin/ls"
# ${ftphome}/usr/lib needs to have all the libraries needed by the above # commands, plus the runtime linker, and some name service libraries
# to resolve names. We just take all of them here.
ftplib="`ldd $ftpcmd | nawk '$3 ~ /lib/ { print $3 }' | sort | uniq`" ftplib="$ftplib /usr/lib/nss_* /usr/lib/straddr* /usr/lib/libmp.so*" ftplib="$ftplib /usr/lib/libnsl.so.1 /usr/lib/libsocket.so.1 /usr/lib/ld.so.1" ftplib="`echo $ftplib | tr ' ' '\n' | sort | uniq`"
cp ${ftplib} ${ftphome}/usr/lib chmod 555 ${ftphome}/usr/lib/*
cp /usr/lib/security/* ${ftphome}/usr/lib/security chmod 555 ${ftphome}/usr/lib/security/*
cp ${ftpcmd} ${ftphome}/usr/bin chmod 111 ${ftphome}/usr/bin/*
# you also might want to have separate minimal versions of passwd and group cp /etc/passwd /etc/group /etc/netconfig /etc/pam.conf ${ftphome}/etc chmod 444 ${ftphome}/etc/* # need /etc/default/init for timezone to be correct if [ ! -d ${ftphome}/etc/default ]; then mkdir ${ftphome}/etc/default fi chown root ${ftphome}/etc/default chmod 555 ${ftphome}/etc/default cp /etc/default/init ${ftphome}/etc/default chmod 444 ${ftphome}/etc/default/init
# Copy timezone database mkdir -p ${ftphome}/usr/share/lib/zoneinfo (cd ${ftphome}/usr/share/lib/zoneinfo (cd /usr/share/lib/zoneinfo; find . -print | cpio -o) 2>/dev/null | cpio -imdu 2>/dev/null find . -print | xargs chmod 555 find . -print | xargs chown root )
# Ensure that the /dev directory exists if [ ! -d ${ftphome}/dev ]; then mkdir -p ${ftphome}/dev fi
# make device nodes. ticotsord and udp are necessary for # 'ls' to resolve NIS names.
for device in zero tcp udp ticotsord ticlts do line=`ls -lL /dev/${device} | sed -e 's/,//'` major=`echo $line | awk '{print $5}'` minor=`echo $line | awk '{print $6}'` rm -f ${ftphome}/dev/${device} mknod ${ftphome}/dev/${device} c ${major} ${minor} done
chmod 666 ${ftphome}/dev/*
## Now set the ownership and modes chown root ${ftphome}/dev chmod 555 ${ftphome}/dev
# uncomment the below if you want a place for people to store things, # but beware the security implications #if [ ! -d ${ftphome}/pub ]; then # mkdir -p ${ftphome}/pub #fi #chown root ${ftphome}/pub #chmod 1755 ${ftphome}/pub
# chmod 755 /etc/ftpanonymous # /etc/ftpanonymous ( 执行ftpanonymous ) # cd ~ftp/etc <--- 检查有没有不能公开的文档
完成
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