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wu-FtpdµÄ¹Ù·½È¨ÍþÕ¾µãµØÖ·ÊÇ£ºhttp://www.wu-ftpd.org/¡£

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1.2 wu-FtpdµÄ°²×°
µ±Ç°£¬Linux»·¾³ÏÂÓÐÐí¶àftp·þÎñÆ÷Èí¼þ¿É¹©Ñ¡Ôñ£¬µ«ÊÇÄ¿Ç°×î³£¼ûµÄÈÔÈ»ÊÇwu-Ftpd·þÎñÆ÷¡£ÕâÀïÖ÷ÒªÌÖÂÛ¸ÃÈí¼þµÄ°²×°ºÍÅäÖá£

Ò»°ãÀ´Ëµ£¬ÔÚ°²×°ÁËlinuxʱ£¬È±Ê¡¶¼»á×Ô¶¯°²×°wu-ftpd·þÎñÆ÷£¬µ«ÊÇÓÐʱºòΪÁËijÖÖÐèÒªÒ²ÐèÒª×Ô¼ºÇ××ÔÖØа²×°¸Ã·þÎñÆ÷Èí¼þ¡£°²×°wu-FtpdÓÐÁ½·½Ê½£¬Ò»ÖÖÊÇ°²×°rpmÐÎʽµÄ·¢²¼°ü£»Ò»ÖÖÊÇ×Ô¼º¶¯ÊÖÈ¥±àÒëÉú³ÉFtp·þÎñÆ÷¡£


rpm°ü¿ÉÒÔÔÚhttp://rpmfind.net/linux/RPM/WBy ... ü´æ·ÅÔÚ/tmpĿ¼Ï£º

#cd /tmp
#rpm -ivh wu-ftpd-1.6.0-9.i386.rpm

ѹËõµÄÔ´´úÂë¿ÉÒÔÔÚftp://ftp.wu-ftpd.org/pub/wu-ftp ... ºÎ±àÒë°²×°wu-ftpd¡£

1¡¢½â¿ªÔ´´úÂë

1) ½«Ñ¹ËõµÄÔ´´úÂ뿽±´µ½/usr/srcÏÂ

#cp wu-ftpd.1.6.0.tar.gz /usr/src

2) ¶ÔѹËõÎĵµ½øÐнâѹËõ£º

#tar xvfz wu-ftpd.1.6.0.tar.gz
#cd wu-ftpd-1.6.0

2¡¢ÇÃÈëÃüÁî "./build xxx" £¬¿ÉÒÔÔÚÕâÀïÖ¸¶¨Ò»¸öCÓïÑÔ±àÒëÆ÷£º"./build CC=yyy xxx" yyy Ö¸ÓÃÀ´Ìæ´ú "cc" µÄÆäËûµÄ±àÒëÆ÷¡£¶ÔÓÚlinux»·¾³ÏµÄgcc±àÒëÆ÷£¬ÃüÁîÓ¦¸ÃΪ£º"./build CC=gcc xxx"

#build CC=gcc lnx


xxx¿ÉÒÔÈ¡ÏÂÃæµÄÖµ£º
gen : ͨÓÃmake(µ±ÒÆÖ²µ½ÐĵÃϵͳʱÐèÒª¿½±´Ëü)
aix : IBM AIX
aux : AU/X
bdi : BSD/OS
bsd : BSD
dec : DEC Unix 3.X
du4 : DEC Unix 4.X or later
dyn : Dynix
fbs : FreeBSD 1.0 or later
hiu : Hitachi Unix
hpx : HP-UX
lnx : Linux (tested on 1.0.30)
nbs : NetBSD 1.X
nx2 : NeXTstep 1.x
nx3 : NeXTstep 3.x
osf : OSF/1
osx : Mac OS X
ptx : ???
sco : SCO Unix 3.2v4.2/SCO OpenServer 5
sgi : SGI Irix 4.0.5a
sny : Sony NewsOS
sol : SunOS 5.x / Solaris 1.x
s41 : SunOS 4.1.x
ult : Ultrix 4.x
uxw : UnixWare 1.1 or later
clean : Clean up object files and such to reduce disk space after building.
install: Install ftpd


Copying Makefiles.

Linking src/config.h

Making support library.
gcc -O3 -fomit-frame-pointer -fno-strength-reduce -pipe -c strcasestr.c
gcc -O3 -fomit-frame-pointer -fno-strength-reduce -pipe -c authuser.c
gcc -O3 -fomit-frame-pointer -fno-strength-reduce -pipe -c snprintf.c
rm -f libsupport.a
ar cq libsupport.a strcasestr.o authuser.o snprintf.o
ranlib libsupport.a
: : :
: : :
: : :

±àÒë³É¹¦ÒÔºó½«Éú³ÉÈçϼ¸¸ö¿ÉÖ´ÐÐÎļþ£º

ftpd FTP·þÎñÆ÷³ÌÐò
ftpshut ÓÃÓڹرÕFTPÊØ»¤½ø³ÌµÄ³ÌÐò
ftpcount ¼ÇÊý³ÌÐò£¬ÏÔʾĿǰftpµÇ¼µÄÈËÊý
ftpwho ²é¿´µ±Ç°FTP·þÎñÆ÷µÄÁ¬ÏßÇé¿ö£¬ÀàËÆÓëϵͳµÄwhoÃüÁî,Ö»²»¹ýÊDz鿴ftpµÇ¼µÄÓû§
ckconfig ¼ì²éFTPµÄÉèÖÃÊÇ·ñÕýÈ·
ftprestart ÖØÐÂÆô¶¯ftp·þÎñÆ÷
privatepw ¸Ä±äwu_ftpd×é·ÃÎÊÎļþÐÅÏ¢


3¡¢ÈôÖ»ÊÇÉý¼¶µ½Ò»¸öеİ汾£¬Ó¦¸ÃÊ×Ïȱ¸·ÝϵͳËùÓеľɵÄÅäÖÃÎļþ¡£·ñÔòÕâЩÅäÖÃÎļþ½«±»¸²¸Ç¡£ÎªÁËÊÊÓ¦×Ô¼ºµÄÐèÇó£¬Ó¦µ±±à¼­Ñù±¾ÅäÖÃÎļþÀ´Âú×ã×Ô¼ºµÄÒªÇ󣬾ßÌåÅäÖÃÎļþµÄÐèÇó²Î¼ûºóÃæµÄÄÚÈÝ¡£


4¡¢ÒÔ³¬¼¶Óû§Éí·ÝÇÃÈëÃüÁî"./build install"

#build install

installing binaries.
install -c -o bin -g bin -m 110 bin/ftpd /usr/sbin/in.ftpd
install -c -o bin -g bin -m 111 bin/ftpshut /usr/bin/ftpshut
install -c -o bin -g bin -m 111 bin/ftprestart /usr/bin/ftprestart
install -c -o bin -g bin -m 111 bin/ftpcount /usr/bin/ftpcount
install -c -o bin -g bin -m 111 bin/ftpwho /usr/bin/ftpwho
install -c -o bin -g bin -m 111 bin/privatepw /usr/bin/privatepw
installing manpages.
install -c -o bin -g bin -m 444 doc/ftpcount.1 /usr/man/man1/ftpcount.1
install -c -o bin -g bin -m 444 doc/ftpwho.1 /usr/man/man1/ftpwho.1
install -c -o bin -g bin -m 444 doc/ftpaccess.5 /usr/man/man5/ftpaccess.5
install -c -o bin -g bin -m 444 doc/ftpconversions.5 /usr/man/man5/ftpconversio5
install -c -o bin -g bin -m 444 doc/ftphosts.5 /usr/man/man5/ftphosts.5
install -c -o bin -g bin -m 444 doc/xferlog.5 /usr/man/man5/xferlog.5
install -c -o bin -g bin -m 444 doc/ftpd.8 /usr/man/man8/ftpd.8


5¡¢±à¼­ "/etc/inetd.conf" Îļþ£¬Ö¸ÏòеÄftpdÊØ»¤½ø³Ì£¬´ó¶àÊýÇé¿öÏ£¬ÕâÒ»²½ÊDz»±ØµÄ£¬ÒòΪÔÚbuild installʱ£¬»á½«ÐµÄÊØ»¤½ø³Ì¿½±´¸²¸ÇÀϵÄÊØ»¤½ø³Ì¡£ÈôÏ£ÍûʹÓÃftpdµÄÔöÇ¿µÄÀ©Õ¹¹¦ÄÜ£¬Ó¦¸ÃÔÚÕâÐÐ×îºó¼ÓÉÏ"-a"Ñ¡Ïî¡£

ftpdÊØ»¤½ø³ÌÒ»°ã¿ÉÒÔЯ´øÈçϲÎÊý£¬Ò²¿ÉÒÔ²»´øÈκβÎÊý£º

-d debug²ÎÊý£¬µ±ftpdÊØ»¤½ø³Ì³öÏÖ´íÎóʱ£¬»á½«´íÎóÐÅϢдÈ뵽ϵͳ¼Ç¼Îļþ/usr/adm/syslogÖÐ
-l ¼Ç¼ÿ´Îftp»á»°ÐÅÏ¢µ½/usr/adm/messagesÖÐ
-t ÉèÖõ±FTP¿Í»§¶Ë¶à¾ÃÎÞ²Ù×÷¾Í×Ô¶¯¶ÏÏߣ¬Õâ¸ö²ÎÊýºóÃæÖ¸¶¨µÈ´ýµÄʱ¼ä£¬Èç -t 600 ±íʾÈô¿Í»§
¶ËÈôÁ¬Ðø10·ÖÖÓûÓж¯×÷¾Í×Ô¶¯¶ÏÏߣ¬È±Ê¡ÖµÊÇ15·ÖÖÓ
-a ʹÓÃftpaccessÅäÖÃÎļþÄÚÈݶÔftpd½øÐиüÏêϸ¸´ÔÓµÄÉèÖÃ
-A ²»Ê¹ÓÃftpaccessÅäÖÃÎļþµÄÉèÖã¬È±Ê¡ÖµÊÇ-A
-i µ±¿Í»§¶ËÓÐÉÏÔØÎļþµÄ¶¯×÷ʱ£¬¾Í¼Ç¼ÔÚÎļþxferlogÖÐ
-L ʹÓû§Á¬½Óftp·þÎñÆ÷ÆÚ¼äʹÓõÄËùÓÐÃüÁ±»¼Ç¼µ½/usr/adm/messagesÖÐ

6¡¢¿½±´tar¡¢gzip¡¢gunzip¡¢compress¡¢uncompressµÈÎļþµ½ "~ftp/bin"ÖУ¬¿½±´"ls"Ϊ"~ftp/bin/ls"¡£

7¡¢ÈôÊǵÚÒ»´Î°²×°£¬Ê¹ÓÃ"ckconfig"³ÌÐò²éÕÒftpdµÄ¸÷ÖÖÅäÖÃÎļþ´æ·ÅĿ¼£ºftpconversions¡¢ftpusers¡¢ ºÍftpgroups¡£ÔÚ"doc/examples"Ŀ¼ÏÂÓÐÑù±¾Îļþ¡£"ckconfig"ÊÇÒ»¸ö¿ÉÖ´ÐгÌÐò£¬È·±£ÐÞ¸´¸Ã³ÌÐò¼ì²âµ½µÄÈκÎÎÊÌâ¡£

1.3 ÈÃFTP·þÎñÆ÷ÔËתÆðÀ´
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1.4 ÅäÖÃÎļþµÄÉèÖÃ

1.4.1 /etc/ftpaccessµÄÉèÖÃ
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class all real,guest,anonymous *

limit all 10 Any /etc/msgs/msg.dead

readme README* login
readme README* cwd=*

message /welcome.msg login
message .message cwd=*

compress yes all
tar yes all

log commands real
log transfers anonymous,real inbound,outbound

shutdown /etc/shutmsg

email user@hostname


ÏÂÃæÊÇÉèÖÃÎļþ¸÷¸öָʾ(directive)µÄÏêϸ˵Ã÷£º

ָʾ: loginfails n
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ָʾ£º class ÀàÃû Àà±ð(real¡¢guest¡¢anonumous) IPµØÖ·
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guest ÁíÍⶨÒåijЩÌض¨×éµÄÓû§£»
anonymous ÄäÃûÓû§£»

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class outworld real,guest,anonymous *
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class friend real,guest,anonymous *.linuxaid.com.cn 201.101.13.*
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limit local 20 Any /tmp/message/msg.toomany
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limit outworld 100 MoTu|Any 2200-0800 /tmp/message/msg.limit
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ָʾ£º reame (yes/no) Àà±ð(real/anonymous/guest)
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ָʾ£º chmod (yes/no) Àà±ð(real/anonymous/guest)
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ָʾ£º umask (yes/no) Àà±ð(real/anonymous/guest)
É趨ÊÇ·ñÔÊÐíÖ¸¶¨Óû§Ê¹ÓÃumaskÖ¸Áî¡£


ָʾ£º upload [absolute|relative] [class=]... [-]

["dirs"|"nodirs"] []

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upload /var/ftp * no
upload /var/ftp /incoming yes ftp daemon 0666
upload /var/ftp /incoming/gifs yes jlc guest 0600 nodirs
would only allow uploads into /incoming and /incom-
:
½«Ö»ÔÊÐí/incomingºÍ/incom-ing/gifsĿ¼ÉÏÔØ¡£ÉÏÔص½/incomingĿ¼ÏµÄÎļþ½«ÊôÓÚftp/daemon£¬·ÃÎÊȨÏÞΪ0666£»¶øÉÏÔص½/incoming/gifsϵÄÎļþ½«ÊôÓÚjlc/guest£¬·ÃÎÊȨÏÞΪ0600¡£Ó¦¸Ã×¢ÒâµÄÊÇ ±ØÐëÆ¥Åä"ftp"Óû§µÄpasswdÎļþÖеÄÖ÷Ŀ¼¡£
"dirs"ºÍ"nodirs"Ñ¡ÏîÓÃÀ´É趨ÊÇ·ñÔÊÐíÔÚ¸ÃĿ¼Ï´´½¨ÐµÄ×ÓĿ¼¡£µ«ÊÇȱʡÊÇÔÊÐí´´½¨×ÓĿ¼µÄ¡£
É趨д´½¨µÄĿ¼µÄ·ÃÎÊȨÏÞ£¬È±Ê¡Îª0777¡£
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ºÍÒ²¿ÉÄÜÖ¸¶¨Îª*£¬ÔÚÕâÖÖÇé¿öÏ£¬ÈκÎÉÏÔصÄÎļþ»ò´´½¨µÄĿ¼µÄËùÓÐÕ߶¼µÈÓÚÆð¸¸Ä¿Â¼µÄËùÓÐÕß¡£
Ñ¡Ïî[absolute|relative]Ö¸¶¨ÊÇÊǾø¶Ô·¾¶»¹ÊÇÏà¶ÔÓÚchroot()²ÎÊýÖ¸¶¨µÄĿ¼µÄÏà¶Ô·¾¶¡£È±Ê¡ÊǾø¶Ô·¾¶¡£Ò²¿ÉÒÔÖ¸¶¨ÈÎÒâ¶à¸öclass='À´½øÐнøÒ»²½ÏÞ¶¨¡£ÈôÖ¸¶¨ÁËÈκÎĿ¼£¬Ôò¸ÃÉÏÔØָʾֻӰÏìÕâЩ×éµÄÓû§¡£


ָʾ£º alias Ŀ¼±ðÃû Ŀ¼·¾¶
¸øÖ¸¶¨Ä¿Â¼ÉèÖÃÒ»¸ö±ðÃû£¬µ±Çл»Ä¿Â¼Ê±¿ÉÒÔʹÓñðÃû¡£
¾ÙÀý˵Ã÷£º
alias xwin /pub/linux/xwindows
Ϊ/pub/linux/xwindowsÉèÖñðÃûxwin,µÇ¼ÒÔºóÖ»ÒªÊäÈëÃüÁîcd xwin¾Í¿ÉÒÔ½øÈë¸ÃĿ¼¡£

ָʾ£º cdpath Ŀ¼
¸Ã¹¦ÄܺÍϵͳµÄPATH»·¾³±äÁ¿ÉèÖÃÀàËÆ£¬µ±cd /etcʱ£¬FTPÊ×ÏȲ鿴µ±Ç°Ä¿Â¼ÏÂÊÇ·ñÓÐetc×ÓĿ¼£¬ÎÞÔò¿´ÊÇ·ñÓбðÃû£¬ÈôûÓÐÔò¸ù¾Ý¸ÃָʾÉ趨µÄ·¾¶²éѯ¡£

¾ÙÀý˵Ã÷£º
cdpath /pub/linux
cdpath /pub
cdpath /
ËÑË÷˳ÐòΪ:/pub/linux /pub /

ָʾ£º path-filter Àà±ð(real/anonymous/guest) Ŀ¼
É趨ÉÏÔØÎļþÃûÏÞÖÆ¡£
¾ÙÀý˵Ã÷£º
path-filter anonymous /etc/pathmsg^[-A-Za-z0-9_\.]*$^\.^-
path-filter guest /etc/pathmsg^[-A-Za-z0-9_\.]*$^\.^-
ÉèÖÃÏÞÖÆanonymousºÍguestÓû§ÉÏÔصÄÎļþÃûÖ»ÄÜ°üº¬A-Z¡¢a-z¡¢0-9ºÍ._-,Ãû×ÖÒÔ"."ºÍ"-"¿ªÍ·µÄÎļþ²»ÄÜÉÏÔص½·þÎñÆ÷ÉÏ¡£

ָʾ£º guestgroup [ ...]
guestuser [ ...]
realgroup [ ...]
realuser [ ...]
¶ÔÓÚguestgroupָʾ£¬ÈôÒ»¸öÕæʵ(real)Óû§ÊôÓÚÈκÎÒ»¸öËùÖ¸¶¨µÄ×飬ÔòÆäFTP»á»°¶¼±»FTP·þÎñÆ÷ÒÔÄäÃûµÄ·½Ê½½øÐд¦Àí¡£Ò²¾ÍÊÇ˵£¬chroot()±»µ÷Óã¬Óû§²»ÔÙÔÊÐí·¢³öUSERºÍ PASS ÃüÁî¡£±ØÐëÊÇÓÐЧµÄ×é¡£
ÕâÀïÓû§µÄhomeĿ¼±ØÐë±»ÕùÈ¡µÄÉèÖã¬ÒªÈ·ÊµºÍÄäÃûÓû§Ò»Ö£¬/etc/passwdÖеÄÏà¹ØÏîµÄhomeĿ¼±»·Ö¸îΪÁ½¸ö²¿·Ö£¬µÚÒ»²¿·ÖÊÇchroot()µ÷ÓõĸùĿ¼²ÎÊý£¬µÚ¶þ¸öÊÇÓû§Ïà¶ÔÓÚ¸ùĿ¼µÄÖ÷Ŀ¼£¬Á½²¿·ÖÖ®¼äÒÔ"/./·Ö¸ô"£¬È磺
guest1::100:92:Guest Account:/ftp/./incoming:/etc/ftponly
µ±guest1³É¹¦µÇ¼½øÈ룬FTP·þÎñÆ÷½«µ÷ÓÃchroot("/ftp")È»ºóµ÷ÓÃchdir("/incoming")¡£Ôòguest1¾ÍÈçͬÄäÃûÓû§Ò»ÑùÖ»ÄÜ·ÃÎÊ/ftpÏÂÃæµÄÈÝ(¶ÔÓÚguest1À´Ëµ£¬Ëü¾ÍÊÇ"/")¡£
¿ÉÒÔÊÇ×éÃû»òÊý×ÖID¡£ÈôʹÓÃÊý×ÖID£¬ÐèÒªÔÚÊý×ÖÇ°Ãæ¼ÓÉÏÒ»¸ö"%"¡£Ê¹ÓÃ*±íʾËùÓÐ×é¡£
guestuserºÍguestgroupָʾÀàËÆ£¬Ö»²»¹ýÊÇÏÞ¶¨Ò»¸öµ¥Ò»Óû§°ÕÁË¡£
realuserºÍrealgroupÓÐͬÑùµÄÓï·¨£¬µ«ÊǺÍguestuser¼°guestgroupÆðÏà·´µÄ×÷Óã¬ÆäÊÇÔÊÐíij¸ö×éµÄÓû§»òij¸öÓû§ÒÔÕæʵÉí·Ý·ÃÎÊFTP·þÎñÆ÷¡£È磺
guestuser *
realgroup admin
Ö¸¶¨ËùÓеķÇÄäÃûÓû§µÇ¼½øÈë·þÎñÆ÷ÒԺ󣬶¼±»×öΪÄäÃûÓû§´¦Àí£¬µ«ÊÇadmin×éµÄÓû§ÊÇÀýÍ⣬µÇ¼ÒÔºóÒÔÕæʵÉí·Ý´æÔÚ¡£

ָʾ£º guestgroup ¹¦ÄÜ
É趨guest×éµÄ¹¦ÄÜ¡£
¾ÙÀý˵Ã÷£º
guestgroup ftponly


ָʾ£º nice []
É趨FTP·þÎñÆ÷ÊØ»¤½ø³ÌµÄµ÷¶ÈÓÅÏȼ¶¡£

ָʾ£º defumask []
ÈôÔ¶³ÌÓû§ÊôÓÚclass,ÔòÊØ»¤½ø³Ì´´½¨µÄÎļþµÄumaskΪumask¡£ÈôûÓÐÖ¸¶¨classÔò½«umask×÷ΪȱʡµÄumask.

ָʾ£º tcpwindow []
ÉèÖÃÊý¾ÝÁ¬½ÓµÄTCP´°¿Ú´óС£¬Èô²»Ã÷°×º¬Ò壬һ°ã²»ÒªÈ¥ÉèÖÃËü¡£

ָʾ£ºkeepalive  
ÉèÖÃTCP socketµÄSO_KEEPALIVE²ÎÊýÑ¡Ïî¡£

ָʾ£ºtimeout accept  
timeout connect  
timeout data  
timeout idle  
timeout maxidle  
timeout RFC931  
ÉèÖø÷ÖÖ³¬Ê±Ê±ÖÓ£¬ÕâЩ²ÎÊý±ØÐëÔÚ¶ÔTCPЭÒé·Ç³£ÊìϤµÄÇé¿öϲÅÓ¦¸ÃÈ¥É趨£¬Ò»°ã²»Òª¸Ä¶¯ÕâЩֵ£¬¾ßÌ庬Òå²Î¼ûman ftpaccess¡£

ָʾ£º file-limit [] []
ÏÞÖÆij¸ö×éµÄÈκÎÒ»¸öÓû§ÔÊÐíÉÏÔصÄÎļþµÄÊýÁ¿£¬ÈôûÓÐÖ¸¶¨class£¬Ôò¸ÃÏÞÖÆÊ©ÓÃÓÚËùÓÐûÓÐÏÞ¶¨µÄ×é¡£rawָʾÕâ¸öÏÞÖÆ°üÀ¨ËùÓеĴ«Ê䣬¶ø²»½ö½öÊÇÊý¾ÝÎļþ¡£

ָʾ£ºbyte-limit [] []

ÏÞÖÆij¸öÀàµÄÈκÎÒ»¸öÓû§ÔÊÐí´«ÊäµÄÊý¾Ý×ÜÁ¿¡£

ָʾ£º limit-time {*|anonymous|guest}  
ÏÞ¶¨Ò»¸ö¶Ô»°ÔÊÐíµÄ³ÖÐøʱ¼ä£¬È±Ê¡ÎÞÏÞÖÆ¡£ÕæʵÓû§Ã»ÓиÃÏÞÖÆ¡£

ָʾ£ºguestserver []
¿ØÖÆÄĸöÕ¾µãÔÊÐí½øÐÐÄäÃûÁ¬½Ó£¬ÈôûÓÐÖ¸¶¨hostname£¬Ôò¾Ü¾øËùÓÐÄäÃûÁ¬½Ó¡£

ָʾ£º noretrieve [absolute|relative] [class=] ... [-] ...
É趨¾Ü¾øÄÇЩÀà·ÃÎÊÄÄЩÌض¨Îļþ¡£ÀýÈ磺
noretrieve /etc/passwd core
Ö¸¶¨ÈκηÃÎÊÕ߶¼²»¿ÉÒÔ·ÃÎÊÎļþ/etcĿ¼ÏµÄpasswdÎļþºÍËùÓеÄÃûΪ"core"µÄÎļþ¡£

ָʾ£ºallow-retrieve [absolute|relative] [class=]... [-] ...
ÔÊÐí·ÃÎÊÕâЩÎļþ¡£


ָʾ£ºprivate  
µ±Ò»¸öÓû§µÇ¼½øÈ룬£¬Ö¸Ê¾SITE GROUPºÍ and SITE GPASSÓÃÀ´Ö¸¶¨Ò»¸öÔöÇ¿µÄ·ÃÎÊ×éºÍÏàÓ¦µÄÃÜÂë¡£ÈôÊäÈëµÄ×éÃûºÍÃÜÂëÓÐЧµÄ»°£¬¸ÃÓû§½«±äΪ¸Ã×éµÄ³ÉÔ±£¬¾ßÓиÃ×éµÄ·ÃÎÊȨÏÞ¡£

ָʾ£ºgreeting full|brief|terse
greeting text  
ÔÊÐí¿ØÖÆÔÚÔ¶³ÌÓû§µÇ½½øÀ´ÒԺ󣬸øÓû§¶àÉÙgreetÐÅÏ¢¼°ÐÅÏ¢ÄÚÈÝ¡£

ָʾ£ºbanner  
ºÍmessageÀàËÆ£¬²»¹ýbannerÏûÏ¢ÊÇÔÚÓû§ÊäÈëÓû§ÃûºÍÃÜÂëÒÔÇ°ÏÔʾ¸øÓû§µÄ¡£


ָʾ£º hostname  
¶¨ÒåFTP·þÎñÆ÷ȱʡµÄÖ÷»úÃû¡£


ָʾ£º email  
¶¨ÒåFTPά»¤ÕßµÄemaiµØÖ·¡£

ָʾ£º log security (anonymous|guest|real)
ʹ¼Ç¼Υ±³°²È«¹æÔòÈ磺(noretrieve, .notar, ...)µÄÃüÁî¡£

ָʾ£ºlog syslog
log syslog+xferlog
Öض¨Ïò¼Ç¼ÏûÏ¢µ½ÏµÍ³¼Ç¼Îļþsyslog£¬È±Ê¡Ö»¼Ç¼µ½xferlog¡£

ָʾ£ºdaemonaddress  
Èô¸ÃֵûÓб»ÉèÖã¬Ôò·þÎñÆ÷Ôò¼àÌýËùÓеĽÓÈëÇëÇ󣬷ñÔò£¬·þÎñÆ÷Ö»½ÓÊÜÀ´×Ô¶¨ÒåµÄÁ¬½ÓÇëÇó¡£Õâ¸öÉèÖÃÒ»°ã²»ÒªÉèÖã¬ÉèÖÃÒÔºó»á×èֹʹÓÃÐéÄâÖ÷»ú»òÆäËûһЩÒÔºóÀ©Õ¹µÄ¹¦ÄÜ¡£

ָʾ£º virtual  
´ò¿ªÐéÄâFTP·þÎñÆ÷µÄÖ§³Ö¡£ÊÇÐéÄâ·þÎñÆ÷µÄIPµØÖ·¡£µÚ¶þ¸ö²ÎÊýÖ¸¶¨ÈçrootĿ¼£¬bannnerÎļþ,logÎļþµÈµÄ·¾¶¡£


ָʾ£ºvirtual  
ÉèÖÃÔÚgreetingÏûÏ¢ÖÐÏÔʾµÄÖ÷»úÃû×Ö»òµç×ÓÓʼþ¡£


ָʾ£ºvirtual allow [ ...]
virtual deny [ ...]
Ò»°ãÕæʵºÍguestÓû§²»ÔÊÐíµÇ½½øÈëÐéÄâÖ÷»ú£¬¸ÃÁ½¸öָʾÓÃÀ´ÖØжÔÔÊÐíºÍ¾Ü¾ø·ÃÎʵÄÐéÄâÖ÷»úµÄÓû§½øÐÐϸ»¯¶¨Òå¡£

ָʾ£ºvirtual private
ͨ³££¬¾Ü¾øÄäÃûÓû§µÇ½½øÈëÐéÄâÖ÷»ú¡£


ָʾ£º defaultserver deny [ ...]
defaultserver allow [ ...]
¶ÔÔÊÐí·ÃÎÊȱʡ£¨·ÇÐéÄ⣩FTP·þÎñÆ÷µÄÓû§½øÐж¨Òå¡£

ָʾ£ºdefaultserver private
¾Ü¾øÄäÃûÓû§·ÃÎÊȱʡFTP·þÎñÆ÷¡£


ָʾ£º deny ipµØÖ·/ÓòÃû ˵Ã÷Îļþ
É趨ÏÞÖÆÄĸöIPµØÖ·»òÓòÃûµÄÓû§²»ÔÊÐíµÇ¼µ½·þÎñÆ÷¡£
¾ÙÀý˵Ã÷£º
deny 201.101.15* *.hacker,com /tmp/message/deny.msg
ÏÞÖÆIPµØַΪ201.101.15*¼°ÓòÃûΪ*.hacker,comµÄ»úÆ÷²»ÔÊÐíµÇ¼·þÎñÆ÷

¡¡

1.4.2 /etc/ftpusersºÍ/etc/ftphostsµÄÉèÖÃ
/etc/ftpusersÊÇÓÃÀ´É趨ϵͳÉϵÄijЩÓû§²»ÔÊÐíʹÓÃFTP´«ËÍÎļþ£¬/etc/ftphostsÊÇÓÃÀ´É趨ijЩÖ÷»ú²»ÔÊÐíÁ¬½Ó±¾FTP·þÎñÆ÷µÄ¡£ÕâÑù×öµÄÄ¿µÄ¶¼ÊÇΪÁË°²È«¿¼ÂÇ¡£

/etc/ftpusersʹÓõķ¶ÀýÈçÏ£º

root
bin
daemon
adm
lp
sync
shutdown
halt
mail
news
uucp
operator
games
nobody
ÏÞÖÆijЩÓû§µÇÈëFTP·þÎñÆ÷ÊdzöÓÚϵͳ°²È«µÄÔ­Òò£¬ÀýÈçÒª±ÜÃⳬ¼¶Óû§µÇÈëϵͳ¡£²¢ÇÒ½ûֹijЩºÍһЩÃüÁîÃûÏàͬµÄÓû§½øÈëFTP·þÎñÆ÷¡£

/etc/ftphostsµÄʾÀýÈçÏ£º

# Example host access file
#
# Everything after a '#' is treated as comment,
# empty lines are ignored
#allow [ ...]
# Only allow host(s) matching to log in as .
#deny [ ...]
# Always deny host(s) matching to log in as .

allow ideal *.linuxaid.com.cn 10.0.0.0/8
deny fred *.hacker.com 131.211.31.0/24

ÕâÀïÖ»ÔÊÐíideal´ÓÓòÃûÒÔlinuxaid.com.cnΪºó׺µÄÖ÷»ú¼°10.0.0.0/255.0.0.0µÄÖ÷»úµÇ¼½øÈëFTP·þÎñÆ÷£»½ûÖ¹fred´Ó*.hacker.comºÍ131.211.31.0/24µÇ¼½øÈëFTP·þÎñÆ÷¡£ÕâÀïµÄusernameÈôΪanonymous»òftp¶¼Ö¸ÄäÃûÓû§¡£

1.4.3 /etc/ftpconversionsÉèÖÃ
¸ÃÎļþÓÃÀ´É趨µ±Óû§ÏÂÔØÎļþʱӦ¸Ã×öÄÇЩ²Ù×÷£¬ÀýÈçѹËõ¡¢½âѹËõµÈ¡£ÎļþÄÚÈÝÈçÏÂËùʾ£º

:.Z: : :/bin/compress -d -c %s:T_REG|T_ASCII:O_UNCOMPRESS:UNCOMPRESS
: : :.Z:/bin/compress -c %s:T_REG:O_COMPRESS:COMPRESS
:.gz: : :/bin/gzip -cd %s:T_REG|T_ASCII:O_UNCOMPRESS:GUNZIP
: : :.gz:/bin/gzip -9 -c %s:T_REG:O_COMPRESS:GZIP
: : :.tar:/bin/tar -c -f - %s:T_REG|T_DIR:O_TAR:TAR
: : :.tar.Z:/bin/tar -c -Z -f - %s:T_REG|T_DIR:O_COMPRESS|O_TAR:TAR+COMPRESS
: : :.tar.gz:/bin/tar -c -z -f - %s:T_REG|T_DIR:O_COMPRESS|O_TAR:TAR+GZIP
: : :.crc:/bin/cksum %s:T_REG::CKSUM
: : :.md5:/bin/md5sum %s:T_REG::MD5SUM


ÎļþÉèÖÃ˵Ã÷£º

:.Z: : :/bin/compress -d -c %s:T_REG|T_ASCII:O_UNCOMPRESS:UNCOMPRESS
±íʾ¶ÔËùÓÐÒÔ".Z"½áβµÄÎļþʹÓÃ/bin/compress -d -c"µÄ·½Ê½½âѹËõ¡£

: : :.Z:/bin/compress -c %s:T_REG:O_COMPRESS:COMPRESS
±íʾ½«´«Ë͵ÄÎļþѹËõΪ".Z"¸ñʽ¡£

:.gz: : :/bin/gzip -cd %s:T_REG|T_ASCII:O_UNCOMPRESS:GUNZIP
±íʾ½«ËùÓÐÒÔ".gz"µÄÎļþÓÃ"/bin/gzip -cd"½âѹËõ¡£

: : :.gz:/bin/gzip -9 -c %s:T_REG:O_COMPRESS:GZIP
±íʾ½«´«Ë͵ÄÎļþѹËõΪ".gz"¸ñʽ¡£

: : :.tar:/bin/tar -c -f - %s:T_REG|T_DIR:O_TAR:TAR
±íʾ½«Òª´«Ë͵ÄÎļþÓÃ"tar"´ò°ü¡£

: : :.tar.Z:/bin/tar -c -Z -f - %s:T_REG|T_DIR:O_COMPRESS|O_TAR:TAR+COMPRESS
±íʾ½«Òª´«Ë͵ÄÎļþѹËõ³É"tar.Z"µÄ¸ñʽ

: : :.tar.gz:/bin/tar -c -z -f - %s:T_REG|T_DIR:O_COMPRESS|O_TAR:TAR+GZIP
±íʾ½«Òª´«Ë͵ÄÎļþѹËõ³É"tar.gz"µÄ¸ñʽ

: : :.crc:/bin/cksum %s:T_REG::CKSUM
±íʾ½«Òª´«Ë͵ÄÎļþ½øÐÐCRCУÑé´¦Àí¡£

: : :.md5:/bin/md5sum %s:T_REG::MD5SUM
±íʾ½«Òª´«Ë͵ÄÎļþ½øÐÐmd5УÑé¡£

Æäʵ°²×°FTPÒÔºóȱʡµÄÅäÖÃÎļþÒѾ­½«³£ÓõÄѹËõÒ²½âѹËõµÄ³ÌÐò¶¨Òå½øÈ¥ÁË£¬ËùÒÔÒ»°ã²»ÐèÒªÐÞ¸ÄÕâ¸öÎļþµÄÄÚÈÝ£¬µ«¿ÉÒÔ¸ù¾Ýʵ¼ÊÐèÒªÐÞ¸ÄÄÚÈݵÄ˳Ðò¡£ÀýÈ磬Óû§ÒªÏÂÔØÒ»¸ö"file.tar.gz"µÄÎļþ£¬µ«´ËFTPÉÏûÓÐÕâ¸öÎļþ£¬µ«ÊÇÓÐÎļþfile£¬ÄÇôFTP·þÎñÆ÷»á½«file´ò°üѹËõΪfile.tar.gzÔÚ´«µÝ¸øÓû§¡£Èô·þÎñÆ÷ÉÏûÓÐfileÕâ¸öÎļþ£¬·þÎñÆ÷»á°´ÕÕ/etc/ftpconversionsÎļþÖÐÖ¸¶¨µÄ˳ÐòÈ¥ËÑË÷£¬£¬ÒÔÕâ¸öÀý×Ó¶øÑÔ£¬»áÒÀ´ÎËÑË÷file.Z¡¢file.gz¡¢file.tar¡¢file.tar.Z¡¢file.tar.gz¡¢file.crc¡¢file.md5Îļþ£¬½«ÏÈÕÒµ½µÄ´«Ë͸øÓû§¡£ËùÒÔÎļþ/etc/ftpconversionsµÄÄÚÈÝ¿ÉÒÔ°´ÕÕÐèÒª¶ø¸Ä±ä˳Ðò¡£

µ½ÏÖÔÚΪֹ£¬ÒѾ­°²×°ÅäÖóɹ¦ÁËÒ»¸öÌṩÄäÃû·ÃÎʵÄFTP·þÎñÆ÷£¬¿ÉÒÔÁ¬½ÓÉÏÈ¥²âÊÔ¹¦ÄÜÊÇ·ñ·ûºÏÐèÒª¡£

1.4.1 wu-ftpµÄÏà¹Ø³ÌÐò
ftpcountÕâ¸ö³ÌÐò¿ÉÒÔͳ¼Æµ±Ç°Á¬½ÓµÄÓû§ÊýÄ¿£¬²¢¸ø³öÉÏÏÞ£¬È磺

[root@linux doc]# ftpcount
Service class friend - 0 users (no maximum)
Service class local - 0 users (no maximum)
Service class outworld - 0 users (no maximum)
ÕâÀïÕýÔÚÁ¬½ÓµÄÊôÓÚlocalµÄÓÐ0¸öÈË£¬Ã»ÓÐÉÏÏÞ¡£ÆäËû¼¸¸öÀà±ðº¬ÒåÒ»Ñù¡£

[root@linux doc]# ftpwho
Service class friend:
- 0 users (no maximum)
Service class local:
- 0 users (no maximum)
Service class local:
- 0 users (no maximum)
µ±Ç°Èý¸öÀà±ð¶¼Ã»ÓÐÓû§Á¬½Ó¡£

ftpshut

¸Ã³ÌÐòÖ÷ÒªÓÃÀ´Éú³É/etc/shutmsg£¬Ò²¾ÍÊÇÇ°Ãæ/etc/ftpaccessÖÐÉ趨µÄshutdownÃüÁftpshutµÄʹÓøñʽÈçÏ£º

ftpshut [ -V ] [ -l min] [ -d min] time [ warning-message ... ]
-l ¸ÃÑ¡ÏîÉèÖÃÔڹرÕFTP·þÎñÆ÷ÒÔÇ°¶àÉÙ·ÖÖÓÍ£Ö¹Óû§µÄÁ¬½ÓÇëÇó
-d ¸ÃÑ¡ÏîÉèÖÃÔڹرÕFTP·þÎñÆ÷ÒÔÇ°¶àÉÙ·ÖÖÓ½«ÒѾ­Á¬½ÓµÄÓû§¶ÏÏß
time ÉèÖùرÕFTP·þÎñÆ÷µÄʱ¼ä£¬ÀýÈçÏ£ÍûÔÚÍíÉÏ10µã¹Ø±ÕFTP·þÎñÆ÷£¬ÔòΪ2200
warning-message ¶ÏÏßÒÔÇ°ÏÔʾ¸øÓû§µÄ¸æ¾¯ÐÅÏ¢
ÀýÈç:

[root@linux /etc]# ftpshut -l15 -d5 1800 "ftp server will shutdown"
[root@lix /etc]# less shutmsg
2000 04 07 18 00 0015 0005
ftp server will shutdown


1.5 ¿ªÉèÖ»ÄÜFTPµÄÕÊ»§
ºÜ¶àʱºòÐèÒª¿ªÉèһЩֻÔÊÐíftpµ½·þÎñÆ÷µÄÓû§£¬ÊµÏÖ·½·¨ÈçÏ£º

1¡¢°´ÕÕͨ³£µÄ·½Ê½ÎªÕâЩÓû§ÔÚϵͳÉÏ¿ªÉèÕÊ»§¡£

[root@ns /etc]#useradd ftp_user1
[root@ns /etc]#chmod 700 /etc/shadows
[root@ns /etc]#vi /etc/shadows

ɾ³ýÏ
ftp_user1:!!:11113:0:99999:7:-1:-1:134537372
Öеڶþ¸ö×ֶεÄ"!!"£¬È»ºóÔÙÒÔftp_usre1Óû§µÇ¼£¬¾Í²»»áѯÎÊ¿ÚÁȻºóʹÓÃpasswdΪ¸ÃÓû§É趨¿ÚÁî

2¡¢Ê¹ÓÃviÐÞ¸Ä/etc/shellsÎļþ£¬Ìí¼Ó/dev/nullÏî»ò/bin/passwd£¬ÈçÏÂËùʾ£º

[root@ns /etc]# cat shells
/bin/bash
/bin/sh
/bin/ash
/bin/bsh
/bin/tcsh
/bin/csh

ÐÞ¸ÄΪ£º

[root@ns /etc]# cat shells
/bin/bash
/bin/sh
/bin/ash
/bin/bsh
/bin/tcsh
/bin/csh
/dev/null
/bin/passwd


2¡¢Ê¹ÓÃvi´ò¿ªÎļþ/etc/passwd
3¡¢½«ÄÇЩֻÔÊÐíFTPµÄϵͳµÄÓû§µÄµÇ¼shell¸ÄΪ/dev/null(Èô²»ÔÊÐíÓû§ÐÞ¸ÄÆä¿ÚÁî)»ò/bin/passwd(ÈôÔÊÐíÓû§ÐÞ¸ÄÆä¿ÚÁî×Ö),ÈçÏÂËùʾ£º

ftp_user1:x:503:504::/home/ftp_user1:/bin/bash
¸ÄΪ£º
ftp_user1:x:503:504::/home/ftp_user1:/dev/null
»ò
ftp_user1:x:503:504::/home/ftp_user1:/bin/passwd

ÕâÑù£¬Ôò¸ÃÓû§Ö»ÄÜʹÓÃÈçpop3¡¢FTPµÈ·þÎñ£¬¶ø²»ÄÜͨ¹ýtelnetµÇ¼µ½ÏµÍ³ÖС£

1.6 ÉèÖÃÐéÄâFTPÖ÷»ú
ËùνÐéÄâÄäÃûÖ÷»ú£¬Ö¸Ò»Ì¨»úÆ÷ÉÏÓжà¸öIPµØÖ·£¬²¢ÇÒ¿ÉÒÔÏòÍâÌṩ¹ý¸öÄäÃûµÄFTP·þÎñÆ÷£¬ÕâЩ·þÎñÆ÷ÔÚÂß¼­ÉÏÊǶÀÁ¢µÄ£¬Óв»Í¬µÄ·ÃÎÊ¿ØÖÆ±í£¬²»Í¬µÄÏÂÔØÄÚÈÝ¡£ÏÂÃæÊÇÉèÖÃһ̨ÐéÄâFTP·þÎñÆ÷µÄ²½Ö裺

1. Ê×ÏȶԱ¾µØij¸öÍø¿¨ÉèÖñðÃûIPµØÖ·£¬¼´ÔÚÒ»¿éÍø¿¨Éϰ󶨶à¸öIPµØÖ·£ºÈçÄãµÄÄÚ²¿FTPÖ÷»úΪ191.168.0.4

Äã¿ÉÔÙ°ó¶¨Ò»¸öIPµØÖ·ÈçÏ£º
/sbin/ifconfig eth0:0 191.168.0.5 up //Ïò½Ó¿ÚÌí¼ÓÒ»¸öеÄIP
/sbin/route add -host 191.168.11.7 eth0:0 //ÔöÌí·ÓÉÐÅÏ¢

1. ÏÈ´´½¨Ä¿Â¼/home/virtualftpºÍ/var/log/virtualftp¡£Éú³ÉbannerÎļþ/home/virtualftp/banner_messageÐÞ¸ÄFTP·þÎñÆ÷µÄÖ÷ÅäÖÃÎļþ/etc/ftpaccess£¬Ôö¼Ó¶ÔÐéÄâFTPµÄÖ§³ÖÐÅÏ¢£¬¼ÓÏÂÃæµÄÐе½¸ÃÎļþÖУº

virtual 191.168.0.5 root /home/virtualftp
virtual 191.168.0.5 banner /home/virtualftp/banner_message
virtual 191.168.0.5 logfile /var/log/virtualftp/xferlog

ÉÏÃæÈýÌõָʾ·Ö±ðÉèÖÃÐéÄâÖ÷»úµÄ¸ùĿ¼£¬ÐéÄâÖ÷»úµÄ¼Ç¼Îļþ£¬ÐéÄâÖ÷»úµÄµÇ¼ÏÔʾÐÅÏ¢¡£ÉÏÃæ·¾¶ºÍÎļþÃû¿ÉËæ±ã¶¨Òå¡£


3. ¿½±´ËùÐèÒªµÄÄäÃûFTPÎļþ,Ö÷ÒªÊÇ/lib,/etc,/binĿ¼
# cp /home/ftp/* /home/virtualftp -a

4.ÔÚDNSÖж¨Òå191.168.0.5£¬ÉèÖóÉÐéÄâFTPµÄÓòÃûÓ³Éä¡£


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