Chroot-BIND HOWTO Scott Wunsch, scott at wunsch.org v1.5, 1 December 2001 ìY nakano at apm.seikei.ac.jp v1.5j1, 3 January 2002 ±Ì¶Í BIND 8 Ìl[T[oð "chroot jail" ÌàÅAñ root [UƵÄÀs³¹éæ¤ÈCXg[ÌâèûðྵܷB±êÉæÁ ÄZL eBª»³êAܽZL eBªjçê½Æ«àe¿ðŬÀ ÉÅ«Ü·BȨA±Ì¶Í BIND 9 ü¯ÉXV³êܵ½Bܾ BIND 8 ðgÁÄ¢élÍAãíèÉ Chroot-BIND8 HOWTO ðÇñž³¢B ______________________________________________________________________ Ú 1. ͶßÉ 1.1 What? 1.2 Why? 1.3 Where? 1.4 How? 1.5 ¨±Æíè 2. jail ÌpÓ 2.1 [UÌì¬ 2.2 fBNg\¢ 2.3 BIND Ìf[^ðzu·é 2.4 VXeÌT|[gt@C 2.5 OL^ 2.5.1 zIÈð 2.5.2 ÊÌð 2.6 p[~bVðµµ·é 3. sJsJÌ BIND ðVKÉRpCECXg[·é 3.1 RpC·é 4. BIND ðCXg[·é 4.1 oCiðCXg[·é 4.2 init XNvgðÒW·éB 4.3 ÝèðÏX·é 5. WEGh 5.1 BIND ÌN® 5.2 Èã! 6. t^ - ãÉ BIND ðAbvO[h·éÉÍ 7. t^ - Ó« 8. t^ - ¶Ìzz|V[ ______________________________________________________________________ 1. ͶßÉ ±Ì¶Í Chroot-BIND HOWTO Å·BÅVÅÌu©êÄ¢é}X^[TCg Í ``Where?'' ð©Ä¾³¢BÇÒÍ BIND (the Berkeley Internet Name Domain) ÌÝèû@Epû@ðùÉmÁÄ¢éƵÄbðißÜ·BmçÈ ¢lÍAܸ DNS HOWTO ðÇÞÆǢŵå¤Bܽ¨g¢Ì UNIX nVX eɨ¯éRpCECXg[É¢ÄÍAÇÒÍKnµÄ¢éàÌ ÆµÜ·B 1.1. What? ±Ì¶ÍABIND ÌCXg[Éæé±ÆÌÅ«éAtÁIÈZL eBÎôÉ¢ÄྵܷBܸABIND ð ``chroot jail'' ÌàÅ®ì ³¹éæ¤Ýè·éû@É¢ÄྵܷB·Èí¿ABIND Ͷßç 꽬³ÈfBNgc[ÌOÉ ét@Cð©é±ÆªÅ«ÈÈ éÌÅ·BܽABIND ðñ root [UÅÀs³¹éæ¤ÈÝèàs¢Ü ·B chroot ÌwãÉ él¦ûÍAÆÄàPÅ·B BIND ( é¢Í¼ÌvZ X) ð chroot jail ÌàÅÀs·éÆA»ÌvZXÍt@CVXe ̤¿ jail Ì൩©é±ÆªÅ«ÈÈéÌÅ·Bá¦ÎA±Ì¶Å ÍABIND ð /chroot/named fBNgÉ chroot µ½óÔÅÀsµÜ·B BIND ÉÆÁÄÍA±ÌfBNgÌgª / Ìæ¤É©¦éÌÅ·B±Ì fBNgÌOÉÍêØANZXūܹñBöJVXeÉ ftp Å OCµ½±ÆÌ élÍA¨»çùÉ±Ì chroot jail ÉoïÁ½±Æ ª éÆv¢Ü·B chroot ÌÍ BIND 9 Å͸ÁÆÈPÉÈÁ½ÌÅA±Ì¶ð¿åÁÆ ¸Âg£·é±ÆɵÄA BIND ÌCXg[ɨ¯éAàÁÆêÊIÈR cÈÇàÜßéæ¤ÉµÜµ½BÅàA±Ì¶Í BIND ðÀSÉ·é½ßÌ ®SÈéKChÅÍ èܹñ (µA»¤·éÂàèà èܹñ)B±Ì¶ É©êÄ¢é±ÆðsÁ½¾¯ÅÍAܾl[T[oðÀSÉÅ«½í ¯ÅÍÈ¢ÌÅ·æ! 1.2. Why? Ⱥ BIND ð chroot jail ÌàŮ쳹éÆÇ¢Ìŵ天B»ê ÍA¼É«¢zª BIND ÌðgÁÄANZXð¾½ÆµÄàA»ÌANZX Å«éÍÍðŬÀɧÀÅ«é©çÅ·B BIND ðñ root [U ÀÅ® ì³¹éÌ௶R©çÅ·B ±êÍÊí¾íêÄ¢éZL eBÎô (ÅVÅðg¤AANZX§Àð· éAÈÇ) ÌA¢íÎu¨Ü¯vÆÝȷ׫ÅAà¿ëñ±êðãÖ·éà ÌÆl¦ÄÍ¢¯Ü¹ñB ÇÒª DNS ÌZL eBÉ»¡ð¨¿ÈçA¼Ì»ið²×ÄÝéÌà Ç¢©àµêܹñB BIND ð StackGuard <http://www.immunix.org/products.html#stackguard> ƤÉ\z·êÎA «ÁÆÀS«ðæèüã³¹Äêéŵå¤Bg¢ûÍÈPÅ·BÊÌ gcc Ư¶Å·Bܽ Dan Bernstein Ì¢½ DNScache <http://cr.yp.to/dnscache.html> ÍABIND ÌãíèÉpÅ«éÀSÈ\ tgEFAÅ·Byó: djbdns <http://cr.yp.to/djbdns.html> Éü¼µ ½æ¤Å·z Dan Í qmail ÌÒÅà èÜ·B 1.3. Where? ±Ì¶ÌÅVÅÍAíÉ Linux/Open Source Users of Regina, Sask. Ì web TCgæèüèÅ«Ü·B <http://www.losurs.org/docs/howto/Chroot- BIND.html> Å·B »Ýͱ̶Ìú{êÅà èAìY nakano at apm.seikei.ac.jp ª ǵĢܷB±êÍ <http://www.linux.or.jp/JF/JFdocs/Chroot-BIND- HOWTO.html> ©çüèÅ«Ü·B BIND Í the Internet Software Consortium <http://www.isc.org/> Ì <http://www.isc.org/bind.html> ©çüèÅ«Ü·B±Ì¶Ì·M_Å ÌÅVÅÍ 9.2.0 Å·B BIND 9 ªg¦éæ¤ÉÈÁÄ©ç¾¢Ô½¿AÀ ÛÌƱÉgÁÄ¢élརæ¤Å·Bµ©µAæèÛçIÈl½¿ÍAÜ ¾ BIND 8 ðg¤ûðDñÅ¢éæ¤Å·BàµÇÒªãÒÉ®·éÈçÎA chroot ÌÚ×É¢ÄÍ Chroot-BIND8 HOWTO (¯¶êÉ èÜ·) Ìûð Çñž³¢BÅàABIND 8 ÌÙ¤ª chroot ð·éÉ͸ÁÆÊ|Å é±Æà¨YêÈB âo[WÌ BIND ̽ÉÍAùmÌZL eBz[ª èÜ·B K¸ÅVÅðg¤æ¤ÉACð¯ľ³¢! 1.4. How? ͱ̶ðA©ª©gÅ chroot Â«È BIND ðZbgAbvµ½o±É îâīܵ½BÌêÍAùÉ BIND ð (©ªÌ Linux fBXg r [VÌ) pbP[W`®ÅCXg[µÄ èܵ½B¨»çÇ ÒÌÙÆñÇ௶ŵå¤BÅ·ÌÅA±±ÅÍùÉCXg[ÏÝÌ BIND ©çÝèt@CðÚ®µÄC³µApbP[WÍíµÄAVµ¢Ì ðCXg[·é±ÆɵܷBÅàܾpbP[WÍíµÈ¢Å¾³ ¢ËBܸ»±©ç¢Â©t@CªKvÉÈèÜ·©çB ܾ BIND ðCXg[µÄ¢È¢lÅàA±Ì¶Ìû@ðp·é±Æ ÍÅ«Ü·Bá¢ÍAªù¶Ìt@CðRs[µÄéæ¤w¦µ½ª ÅA»Ìt@Cð[©ç«N±·Kvª éAÆ¢¤¾¯Å·B±ÌÛ ÉÍ DNS HOWTO ªðɧÂŵå¤B 1.5. ¨±Æíè ±êçÌLqÍÌVXeÅÍ®ìµÜµ½ªAÇÒÌƱëÅÌÊÍÙ Èé©àµêܹñB±êÍ 1 ÂÌAv[`É߬¸A¯lÌÝèðs¤ ÉÍ¢ë¢ëÈû@ªLè¾Ü· (êÊIÈAv[`;¢½¢¯¶ÉÈé ŵ太)B±êÍAªÝ½ÅÅɮ쵽âèû¾Á½ÌÅA± ±É«Lµ½É·¬Ü¹ñB Ì»ÝÜÅÉé BIND Ìo±ÅÍA Linux T[oɵ©CXg[ð sÁĢܹñBµ©µA±Ì¶Ìà¾Ìå¼ÍA¼ÌíÞÌ UNIX Éàe ÕÉKpÅ«é͸ŷBÌCt¢½á¢É¢ÄÍAū龯Lq·é ÂàèÅ·BܽA¼ÌfBXgr [Vâ¼ÌvbgtH[ð gÁÄ¢él½¿©ç¢Â©wEðó¯Ä¢Ü·ÌÅA»êçàū龯 Üßéæ¤ÉµÜµ½B Linux ðgÁÄ¢élÍA±êçð·OÉAgÁÄ¢é̪ 2.4 J[l Å é©Ç¤©mF·éKvª èÜ·B -u XCb` (ñ root [UÅ® ì³¹é) ÉÍA±ÌVµ¢J[lªKvÅ·B 2. jail ÌpÓ 2.1. [UÌì¬ uͶßÉvÅq×½æ¤ÉA BIND ð root ÀÅÀs·éÌÍ ÜèÇ¢ l¦ÅÍ èܹñB]ÁÄAܸÅÉ BIND êpÌ[UðìèÜµå ¤B±ÌÚIÉAnobody Ìæ¤Èù¶ÌêÊü¯[UÍAµÄg¤×« ÅÍ èܹñBµ©µASuSE â Linux Mandrake ÈÇAÅ©ç±Ì½ß Ì[U (Ê named Æ¢¤¼O) ðpӵĢéfBXgr [V à éÌÅA»Ìêͨ]ÝÈç±Ì[Uðp¢Äà\¢Ü¹ñB ³ÄA[UðÇÁ·éÉÍAÌæ¤Èsð /etc/passwd ÉÁ¦Ü·B named:x:200:200:Nameserver:/chroot/named:/bin/false »µÄÌsð /etc/group ÉÁ¦Ü·B named:x:200: ±êÅ BIND pÌ named Æ¢¤[UÆO[vªÅ«Üµ½B UID Æ GID (±ÌáÅͼûÆà 200) ªA¨g¢ÌVXeżÆdÈÁÄ¢È¢æ¤ Éӵܵå¤B±Ì[UÍOC·éKvªÈ¢ÌÅAVFÍ /bin/false ÉµÄ èÜ·B 2.2. fBNg\¢ ÉAchroot jail Égp·éfBNg\¢ðìÁÄ °éKvª èÜ ·B±±ª BIND ̶ÌêÆÈéí¯Å·B±êÍt@CVXeÌDZ Åà\¢Ü¹ñBñíÉ_o¿ÈlÍAƧµ½{ [ (p[eBV ) Éu«½¢Æ³¦v¤©àµêܹñËB±±ÅÍ /chroot/named ðg ¢Ü·BܸȺÌæ¤ÈfBNg\¢ðìÁľ³¢B /chroot +-- named +-- dev +-- etc | +-- namedb | +-- slave +-- var +-- run (Linux VXeÈÇÅ) GNU Ì mkdir ðgÁÄ¢élÍAÌæ¤É·êÎ ±ÌfBNg\¢ªìêÜ·B # mkdir -p /chroot/named # cd /chroot/named # mkdir -p dev etc/namedb/slave var/run 2.3. BIND Ìf[^ðzu·é ùÉÊíÌ©½¿Å BIND ªCXg[Å«Ä¢ÄA±êðpµÄ¢éÈ çA named.conf t@CÆ][t@Cª é͸ŷB±êçÌt@C Í chroot jail ÌÉÚ® ( é¢ÍÀSÉâéÈçRs[) µÄA BIND ©ç©¦éæ¤ÉµÄâéKvª èÜ·B named.conf Í /chroot/named/etc ÖA][t@CÍ /chroot/named/etc/namedb ÖÚ® µÜ·Bá¦Î: # cp -p /etc/named.conf /chroot/named/etc/ # cp -a /var/named/* /chroot/named/etc/namedb/ BIND ÍÊí namedb fBNgÖÌ«±Ý ÀðKvƵܷBµ©µ ZL eBðµµ·é½ßÉA±êͳȢ±Æɵܵå¤B¨g¢ Ì DNS ª é][ðX[uÅT[rX·éêÍA BIND Í»Ì][ t@CðXVūȯêÎÈèܹñB·Èí¿±êçÌt@CÉÍÊÌ fBNgÉÛ¶³¹éæ¤ÉµÄA»±É BIND ©çÌ«ÝANZX ð·©½¿ÉµÜ·B # chown -R named:named /chroot/named/etc/namedb/slave ±±ÅAX[u][ÍS±ÌfBNgÉÚ®·éÌðYêÈ¢± ÆBܽA»êÉ¶Ä named.conf ÌÏXàKvÉÈèÜ·B BIND Í /var/run fBNgÖà«±Ý ÀðKvƵܷB pid t@ CÆvîñð±±Éìé©çÅ·BÌR}hűêðÂ\ɵÄâè ܵå¤B # chown named:named /chroot/named/var/run 2.4. VXeÌT|[gt@C BIND ª chroot jail àÅÌÀsðnßéÆA jail OÌt@CÖÍê ØANZXÅ«ÈÈèÜ·Bµ©µA¢Â©ÌdvÈt@CÉÍÀsã àANZXūȯêÎÈèܹñB½¾µ BIND 8 Éä×éƾ¢ÔÈ¢ Å·ªB BIND ª jail ÌàÉKvÆ·ét@CÌÐÆÂÉA¢ÂàÌ êA/dev/null ª èÜ·B±±ÅA±ÌfoCXm[hðìé½ßÉKvÈ R}hÍVXeÉæÁÄÙÈé±Æª èÜ·B /dev/MAKEDEV XNv gð²×ÄmFµÄ¾³¢BVXeÉæÁÄÍ /dev/zero ªKv鱮 à èÜ·B BIND 9.2.0 [X\èÅÅÍA /dev/random ªKv¾Æ¢ ¤ñà èÜ·BÙÆñÇÌ Linux VXeÅÍAȺÌR}hªg¦ Ü·B # mknod /chroot/named/dev/null c 1 3 # mknod /chroot/named/dev/random c 1 8 # chmod 666 /chroot/named/dev/{null,random} FreeBSD 4.3 ÅÍÌæ¤ÉÈèÜ·B # mknod /chroot/named/dev/null c 2 2 # mknod /chroot/named/dev/random c 2 3 # chmod 666 /chroot/named/dev/{null,random} ¼Éà jail àÌ /etc fBNgÉKvÈt@Cª èÜ·B BIND ɳµ¢ÅOL^ð³¹éÉÍA /etc/localtime (VXeÉæÁÄ Í /usr/lib/zoneinfo/localtime ©àµêܹñ) ð±±ÉRs[·éKv ª èÜ·BȺÌR}hª±ÌÊ|ð©ÄêÜ·B # cp /etc/localtime /chroot/named/etc/ 2.5. OL^ {¨ÌúlÆÍÙÈèABIND ÍOL^ðÇɱÆÍūܹñ :-)B Êí BIND ÍOðAVXeÌMOf[Å é syslogd oRÅL ^µÜ·B±Ì^CvÌOL^ÍAÁêÈ\PbgÅ é /dev/log ðʵ ÄOGgðM·é±ÆÅsíêÜ·Bµ©µ±êÍ jail ÌOÉ èÜ·©çABIND ©çÍg¦Ü¹ñBÅà 誽¢±ÆÉA±êðð· éû@͢©¶ÝµÜ·B 2.5.1. zIÈð ±ÌW}ÉηézIÈð@ÉÍA OpenBSD űü³ê½ -a X Cb`ðT|[g·éAärIVµ¢o[WÌ syslogd ªKvÅ·B syslogd(8) Ì man y[Wð`FbNµÄA©ªÌgÁÄ¢é̪±ê©Ç¤ ©©Ä¾³¢B T|[gµÄ¢êÎAsyslogd ðN®·éÛÌR}hCÉ ``-a /chroot/named/dev/log'' ðÇÁ·é¾¯Å OK Å·B SysV-init ð·×Ä gÁÄ¢éVXe (Linux fBXgr [VÌÙÆñÇÍ»¤) È çAN®ÍÊí /etc/rc.d/init.d/syslog t@CÅȳêÜ·Bá¦ÎA Ì Red Hat Linux VXeÅÍAÍ daemon syslogd -m 0 Ìsð daemon syslogd -m 0 -a /chroot/named/dev/log ÆÏXµÜµ½B Ê¢±ÆÉ Red Hat 7.2 ÅÍA©½Æ±ë Red Hat ͱÌðàÁÆÈ PɵĢܷB»ÝÍ /etc/sysconfig/syslog Æ¢¤t@Cª èA± ±ÉÍ syslogd É]ªÉ^¦ép[^ðè`Å«éÌÅ·B Caldera OpenLinux VXeÅÍ ssd Æ¢¤f[`ðgÁĨ èA±êÍÝèð /etc/sysconfig/daemons/syslog ©çÇÝÜ·B±ÌÌ IvVsðȺÌæ¤ÉC³·é¾¯Å·B OPTIONS_SYSLOGD="-m 0 -a /chroot/named/dev/log" ¯lÉ SuSE VXeÅÍA±ÌXCb`Í /etc/rc.config t@CÉÇÁ ·é̪Ǣ»¤Å·B SYSLOGD_PARAMS="" Æ¢¤sð SYSLOGD_PARAMS="-a /chroot/named/dev/log" Æ·êÎ OK Å·B »µÄÅãÉ (Æ¢ÁÄàdv«ÌÅÍȢŷæ) FreeBSD 4.3 ÅÍA rc.conf t@CðÒWµÄÌsðÇÁ·êÎ梻¤Å·B syslogd_flags="-s -l /chroot/named/dev/log" -s ÍZL eBãÌâè©ç^¦éàÌÅAftHgÌÝèÌêÅ ·B -l ÍAÊÌOm[hªu©êÄ¢é[JÈpX¼Å·B yó: Debian Èç /etc/init.d/syslogd Ì SYSLOGD="" Æ¢¤sð SYSLOGD="-a /chroot/named/dev/log" ƵܷBz ¨g¢ÌVXeÅÌÏXû@ªí©Á½çA syslogd ðÄN®·é¾¯Å ·Bkill µÄÄÑ (ÇÁp[^ÆÆàÉ) N®µÄࢢŷµA SysV-init XNvgðgÁÄÌæ¤É·éÌÅàǢŵå¤B # /etc/rc.d/init.d/syslog stop # /etc/rc.d/init.d/syslog start ÄN®Å«½çA/chroot/named/dev ÉȺÌæ¤È log Æ¢¤ut@C vªÅ«Ä¢é͸ŷB srw-rw-rw- 1 root root 0 Mar 13 20:58 log 2.5.2. ÊÌð â syslogd ðgÁÄ¢éêÍAOðæéÉÍÊÌû@ð©Â¯È¯ê ÎÈèܹñBá¦Î hoellogd Ìæ¤ÈAuvLVvƵĮì·éæ¤ Ýv³êÄ¢évOà¶ÝµÜ·B±êÍ chroot ³ê½ BIND ©ç OGgðó¯æèA»êðÊíÌ /dev/log \PbgÉnµÜ·B é¢ÍABIND ðÝèµÄAOð syslog ÉéÌÅÍÈt@CÉ «±Þæ¤ÉàÅ«Ü·B±Ìû@ðIÔÈçABIND Ì¶É ½ÁÄÚ× ð²×ľ³¢B 2.6. p[~bVðµµ·é ܸÅÉA/chroot fBNgSÌÖÌANZXðAÎÁ³è root [ UÌÝÉÀÁĵܢܵå¤Bà¿ëñA±¤µ½¢lΩèÅÍȢŠµå¤BÁɼÌ\tgEFAð±Ìc[ȺÉCXg[µÄ¢ÄA± ÌÏXª»Ì\tgÉÍKØÅÈ¢æ¤ÈêÉÍ»¤Å·ËB # chown root /chroot # chmod 700 /chroot ¯¶ /chroot/named ÖÌANZXÍA named [UÉÌÝÀÁĵÜÁÄ åävÅ·B # chown named:named /chroot/named # chmod 700 /chroot/named àÁƵµµ½¢êÍA Linux VXeÈç ext2 t@CVXeÉ ét@CâfBNgÌ®«ðA chattr Æ¢¤c[Å immutable (sÏ) É·é±ÆàÅ«Ü·B # cd /chroot/named # chattr +i etc etc/localtime var ¯lÉ FreeBSD 4.3 űêçð immutable ɵ½¢ÈçA chflags ð²× ÄÝܵå¤Bá¦ÎÌæ¤É·êÎA/chroot/named/etc fBNgÈ ºÌ·×Äð immutable ÉÅ«Ü·B # chflags schg /chroot/named/etc/*(*). ±êçð dev fBNgÉà{¹êÎÇ¢Ìŵ太AcOȪ籤 ·éÆ syslogd ª±±É dev/log \PbgðìêÈÈÁĵܢܷB jail ÌàÉ é¼Ìt@CÉ immutable rbgð§ÄÄàæ¢Åµå¤ (á¦ÎvC}][t@CðÏX³ê½È¢êÈÇ)B 3. sJsJÌ BIND ðVKÉRpCECXg[·é 3.1. RpC·é chroot jail Åp¢é BIND 9 ÌRpCÍA BIND 8 ÌÆ«æèà¸ÁÆ õKÈìÆÆÈéŵå¤BÀÌƱëAµÈ¯êÎÈçÈ¢±ÆÍÁɽà ÈAWIÈ ./configure && make ¾¯ÅÇ¢ÌÅ·B ½¾µ IPv6 ðT|[gµ½ BIND ð Linux VXeÅìè½¢ê (--enable-ipv6) ÍAJ[lÆ glibc Ìo[Wðí¹È¯êÎÈè ܹñBJ[l 2.2 Èç glibc 2.1 ªKvÅ·BJ[l 2.4 Èç glibc 2.2 ªKvÅ·B BIND ͱÌ_É¢ÄÍñíɤ鳢ŷB 4. BIND ðCXg[·é ൷ÅÉ (á¦Î RPM ÈÇ©ç) CXg[³êÄ¢é BIND ª éê ÍAVµ¢ÌðCXg[·éOÉ»êðí·éKvª éÆv¢Ü ·B Red Hat VXeÅÍ bind Æ bind-util ÌpbP[WA»µÄ bind- devel Æ caching-nameserver ÈÇàA¶ÝµÄ¢½çí·éKvª éÅ µå¤B ൠinit XNvg (·Èí¿ /etc/rc.d/init.d/named) ª Á½ê ÍApbP[WÌíÌOÉA±Ìt@CðRs[µÄÛ¶µÄ¨Ù¤ª ¢¢Åµå¤B«ÁÆ ÆÅðɧ¿Ü·B BIND 8 Ìæ¤ÈAâo[WÌ BIND ©çAbvO[h·éêÍA BIND Ì\[XpbP[WÌ doc/misc/migration É éAÚs̽ß̶ ðÇñŨ٤ª¢¢Åµå¤BÚsÉÖ·éàeÍA±Ì¶Å͵¢Ü ¹ñBPɻݮìµÄ¢é BIND 9 ÌCXg[ðu«·¦æ¤ÆµÄ¢ éAÆ¢¤Ìª{¶ÅÌzèÎÛÅ·B 4.1. oCiðCXg[·é ±êÍÈPÅ· :-) make install ðÀsµÄA¨Ü©¹·é¾¯Å·B¢ âA{ɱ꾯ÈñÅ·æ! 4.2. init XNvgðÒW·éB fBXgr [VÉÜÜêÄ¢é init XNvgª êÎAVµ¢o CiðKØÈXCb`ÅN®·éæ¤ÉA»¢ÂðÏX·é̪ÅàÈPÅ µå¤BXCb`Í... (±±Åh[...) o -u named, ±êÍ BIND ð[U root ÅÍÈ named ÅÀsµÜ·B o -t /chroot/named, ±êÉæè BIND Í©ª©gð (æÉpÓµ½) jail É chroot µÜ·B o -c /etc/named.conf, ±êÍ BIND ÉA jail Ìàɨ¯éÝèt@C Ì è©ð³¦Ü·B ÈºÌ init XNvgÍAÒª©ªÌ Red Hat 6.0 VXeÅgÁÄ¢ éàÌÅ·B¨í©èÌƨèAÙÆñÇÍ Red Hat ÌàÌÆÏíè èÜ ¹ñBí½µÍ rndc R}hÍܾµÄ¢Ü¹ñªA±êª®©È¢R ÍȢ͸ŷB ______________________________________________________________________ #!/bin/sh # # named This shell script takes care of starting and stopping # named (BIND DNS server). # # chkconfig: 345 55 45 # description: named (BIND) is a Domain Name Server (DNS) \ # that is used to resolve host names to IP addresses. # probe: true # Source function library. . /etc/rc.d/init.d/functions # Source networking configuration. . /etc/sysconfig/network # Check that networking is up. [ ${NETWORKING} = "no" ] && exit 0 [ -f /usr/local/sbin/named ] || exit 0 [ -f /chroot/named/etc/named.conf ] || exit 0 # See how we were called. case "$1" in start) # Start daemons. echo -n "Starting named: " daemon /usr/local/sbin/named -u named -t /chroot/named -c /etc/named.conf echo touch /var/lock/subsys/named ;; stop) # Stop daemons. echo -n "Shutting down named: " killproc named rm -f /var/lock/subsys/named echo ;; status) status named exit $? ;; restart) $0 stop $0 start exit $? ;; reload) /usr/local/sbin/rndc reload exit $? ;; probe) # named knows how to reload intelligently; we don't want linuxconf # to offer to restart every time /usr/local/sbin/rndc reload >/dev/null 2>&1 || echo start exit 0 ;; *) echo "Usage: named {start|stop|status|restart|reload}" exit 1 esac exit 0 ______________________________________________________________________ syslogd ÅÌêƯ¶A»ÝÌ Red Hat 7.2 ÅÍA±ÌßöͳçÉÈ PÉÈÁĢܷB /etc/sysconfig/named Æ¢¤t@Cª èA±±Å named É^¦éÇÁp[^ðè`Å«Ü·B½¾µ Red Hat 7.2 ÅÌf tHgÌ /etc/rc.d/init.d/named ÅÍAN®OÉ /etc/named.conf ª é©ð`FbNµÜ·B±ÌpXÍÏXµÈ¯êÎÈèܹñB Caldera OpenLinux VXeÅÍAæªtßÅè`³êÄ¢éÏðC³µA ȺÌæ¤É·êÎ OK Å·B NAME=named DAEMON=/usr/local/sbin/$NAME OPTIONS="-t /chroot/named -u named -c /etc/named.conf" »µÄ FreeBSD 4.3 ÅÍArc.conf t@CðÒWµÄAÌsðÇÁµÜ ·B named_enable="YES" named_program="chroot/named/bin/named" named_flags="-u named -t /chroot/named -c /etc/namedb/named.conf" 4.3. ÝèðÏX·é named.conf Éà¢Â©ÇÁEC³ðs¢A¢ë¢ëÈfBNgª³µ ®ì·éæ¤É·éKvª èÜ·BÁÉAȺð option ZNVÉÇ Á ( é¢Í·ÅÉ êÎC³) µÈ¯êÎÈèܹñB directory "/etc/namedb"; pid-file "/var/run/named.pid"; statistics-file "/var/run/named.stats"; ±êçÌt@CÍ named f[ªÇÞ±ÆÉÈéÌÅAà¿ëñpXÍ ·×Ä chroot jail àÅÌÎÊuÉÈèÜ·B·MÌ_ÅÍABIND 9 ÍOÌo[WÅT|[g³êÄ¢½vîñâ_vt@C̽𢠾T|[gµÄ¢Ü¹ñB¨»ç¡ãÍT|[g³êÄ¢Æv¢Ü·BÇ Ǫ̀g¢Ìà̪±Ìæ¤Èo[WÅ éêÍA BIND ª»êçð /var/run fBNgɯéæ¤ÉA¢Â©Ggð¯¶æ¤ÉÇÁ ·éKvª éŵå¤B 5. WEGh 5.1. BIND ÌN® ±êÅ·×ÄÌÝèªI¹µÜµ½BVµ¢AæèÀSÈ BIND ðÀsÉÚ¹ 骽í¯Å·B SysV `®Ì init XNvgðp¢Ä¢éÈçAÌ æ¤ÉÀs·é¾¯Å·B # /etc/rc.d/init.d/named start ÀsOÉâo[WÌ BIND ªÀs¾Á½ç kill ·éÌðYêÈ¢æ ¤ÉB 5.2. Èã! ±êÅÀSµÄ°é±ÆªÅ«Ü·Ë ;-) 6. t^ - ãÉ BIND ðAbvO[h·éÉÍ ³ÄAâÁÆ BIND 9.1.2 ª¤Ü chroot µÄA]ÝÌƨèÉ` [Å «Üµ½... »¤µ½çABIND 9.1.3 ª[X³êA¼¿É±¿çð½ß ·×«AÆÌ §½µ¢\ª¬êīܵ½B±ÌVµ¢o[WÅàA± ±ÜÅq×Ä«½·¢è±«SÌðJèԳȯêÎÈçÈ¢Ìŵ天? ¢¢¦BÀÛÉKvÈÌÍAVµ¢o[WÌ BIND ðRpCµÄAà ¢àÌÉã«CXg[·é¾¯Å·B½¾µ»ÌãâÅð kill µ ÄABIND ðÄN®·é±ÆB³àÈ¢Æâo[Wª»ÌÜÜÀsµ± ¯Ä¢Ü·©ç! 7. t^ - Ó« ±Ì HOWTO Ìì¬Ì¯ÆÈÁľ³Á½AȺÌûXɴӵܷB o Lonny Selinger <lonny at abyss.za.org> ÍA±Ì HOWTO ÌÅÌÅð ueXgvµÄ¾³èAKvÈ豫ðòεĢȢ±ÆðMÒÉm M³¹Äêܵ½B o Chirik <chirik at CastleFur.COM>, Dwayne Litzenberger <dlitz at dlitz.net>, Phil Bambridge <phil.b at cableinet.co.uk>, Robert Cole <rcole at metrum-datatape.com>, Colin MacDonald <colinm at telus.net> Ù©A½ÌF³ñª±Ì¶ÌÔá¢AðwEµÄ¢½ ¾«Aܽ±Ì HOWOTO ðæèÇ·é½ßÌLvÈAhoCXð¾³ ¢Üµ½B o Erik Wallin <erikw at sec.se> Æ Brian Cervenka <brian at zerobelow.org> ÍAjail ð³çÉÅÉ·é½ßÌADê½ñÄðÁ Äêܵ½B o Robert Dalton <support at accesswest.com> ÍAR}háðÇÁÄð ñĵľ³èAܽ BIND 9.2.0 ÅÍ /dev/random ªKvÆÈé±Æ ðwEµÄêܵ½B o Eric McCormick <hostmaster at cybertime.net> Í FreeBSD 4.3 Ìîñ ðÁÄêܵ½B o Tan Zheng Da <tzd at pobox.com> ÍAìÆðXyɵÄêéA Red Hat 7.2 Åȳê½ÏXÌÚ×ð³¦Äêܵ½B »µÄÅãÉA Chroot-BIND HOWTO ðú{êÉ|óµÄê½ Nakano Takeo <nakano at apm.seikei.ac.jp> ɴӵܷB±Ì|óÍ <http://www.linux.or.jp/JF/JFdocs/Chroot-BIND-HOWTO.html> É èÜ·B yó: |óÉ ½ÁÄÍAxcÏp³ñÆ´S³ñÉLvÈRg𢠽¾«Üµ½Bz 8. t^ - ¶Ìzz|V[ Copyright (C) Scott Wunsch, 2000-2001. This document may be distributed only subject to the terms set forth in the LDP licence at <http://metalab.unc.edu/LDP/COPYRIGHT.html>. This HOWTO is free documentation; you can redistribute it and/or modify it under the terms of the LDP licence. It is distributed in the hope that it will be useful, but without any warranty; without even the impled warranty of merchantability or fitness for a particular purpose. See the LDP licence for more details. yó: ´¶ªDæ³êÜ·ªAQÆ̽ßÉ|óð¦µÜ·B Copyright (C) Scott Wunsch, 2000-2001. ±Ì¶Í <http://metalab.unc.edu/LDP/COPYRIGHT.html> É é LDP CZXÉ] ¦ÎzzÅ«Ü·B ±Ì HOWTO Ít[¶Å·B LDP CZX̺ÅÄzzEüϪÂ\Å ·B±Ì¶ÍLvÅ çñ±ÆðèÁÄzz³êĢܷªAÛØÍêØ èܹñBÃÙÌàÌàÜßA¤pÉð§ÂÛØà èܹñµAÁèÌpr Év·é©Ç¤©àí©èܹñBÚ×Í LDP CZXð©Ä¾³ ¢B Ȩ|óÅà LDP CZX̺ÅÄzzEüÏÂ\ƵܷB Copyright (C) NAKANO Takeo, 2001.z