%general-entities; ]> $LastChangedBy$ $Date$ The BIND package provides a DNS server and client utilities. If you are only interested in the utilities, refer to the . Download (HTTP): Download (FTP): Download size: &bind-size; Estimated disk space required: &bind-buildsize; Estimated build time: &bind-time; (for ifconfig) and : Net-DNS , , Install BIND by running the following commands: sed -i -e "s/dsssl-stylesheets/&-1.78/g" configure && ./configure --prefix=/usr --sysconfdir=/etc \ --enable-threads --with-libtool && make && make install && chmod 755 \ /usr/lib/{lib{bind9,isc{,cc,cfg},lwres}.so.?.?.?,libdns.so.20.0.0} && mv /usr/share/man/man8/named.conf.5 /usr/share/man/man5 && cd doc && install -d -m755 /usr/share/doc/bind-9.3.0/{arm,draft,misc,rfc} && install -m644 arm/*.html \ /usr/share/doc/bind-9.3.0/arm && install -m644 draft/*.txt \ /usr/share/doc/bind-9.3.0/draft && install -m644 rfc/* \ /usr/share/doc/bind-9.3.0/rfc && install -m644 misc/{dnssec,ipv6,migrat*,options,rfc-compliance,roadmap,sdb} \ /usr/share/doc/bind-9.3.0/misc In order to run the complete test suite before installing the package, you need to set up some dummy interfaces (requires ifconfig). Issue the following commands to run the complete suite of tests: bin/tests/system/ifconfig.sh up && make check >check.log 2>&1 && bin/tests/system/ifconfig.sh down If desired, issue the following command to ensure all 145 tests ran successfully: grep "R:PASS" check.log | wc -l sed -i -e ... configure: This command forces configure to look for the DSSSL stylesheets in the standard BLFS location. --sysconfdir=/etc: This parameter forces BIND to look for configuration files in /etc instead of /usr/etc. --enable-threads: This parameter enables multi-threading capability. --with-libtool: This parameter forces the building of dynamic libraries and links the installed binaries to these libraries. cd doc; install ...: These commands install the additional package documentation. Optionally, omit any or all of these commands. named.conf, root.hints, 127.0.0, rndc.conf BIND will be configured to run in a chroot jail as an unprivileged user (named). This configuration is more secure in that a DNS compromise can only affect a few files in the named user's HOME directory. Create the unprivileged user and group named: groupadd named && useradd -m -c "BIND Owner" -g named -s /bin/false named Set up some files, directories and devices needed by BIND: cd /home/named && mkdir -p dev etc/namedb/slave var/run && mknod /home/named/dev/null c 1 3 && mknod /home/named/dev/random c 1 8 && chmod 666 /home/named/dev/{null,random} && mkdir /home/named/etc/namedb/pz && cp /etc/localtime /home/named/etc Then, generate a key for use in the named.conf and rdnc.conf files using the rndc-confgen command: rndc-confgen -b 512 | grep -m 1 "secret" | cut -d '"' -f 2 Create the named.conf file from which named will read the location of zone files, root name servers and secure DNS keys: cat > /home/named/etc/named.conf << "EOF" options { directory "/etc/namedb"; pid-file "/var/run/named.pid"; statistics-file "/var/run/named.stats"; }; controls { inet 127.0.0.1 allow { localhost; } keys { rndc_key; }; }; key "rndc_key" { algorithm hmac-md5; secret "[Insert secret from rndc-confgen's output here]"; }; zone "." { type hint; file "root.hints"; }; zone "0.0.127.in-addr.arpa" { type master; file "pz/127.0.0"; }; // Bind 9 now logs by default through syslog (except debug). // These are the default logging rules. logging { category default { default_syslog; default_debug; }; category unmatched { null; }; channel default_syslog { syslog daemon; // send to syslog's daemon // facility severity info; // only send priority info // and higher }; channel default_debug { file "named.run"; // write to named.run in // the working directory // Note: stderr is used instead // of "named.run" // if the server is started // with the '-f' option. severity dynamic; // log at the server's // current debug level }; channel default_stderr { stderr; // writes to stderr severity info; // only send priority info // and higher }; channel null { null; // toss anything sent to // this channel }; }; EOF Create the rndc.conf file with the following commands: cat > /etc/rndc.conf << "EOF" key rndc_key { algorithm "hmac-md5"; secret "[Insert secret from rndc-confgen's output here]"; }; options { default-server localhost; default-key rndc_key; }; EOF The rndc.conf file contains information for controlling named operations with the rndc utility. Create a zone file with the following contents: cat > /home/named/etc/namedb/pz/127.0.0 << "EOF" $TTL 3D @ IN SOA ns.local.domain. hostmaster.local.domain. ( 1 ; Serial 8H ; Refresh 2H ; Retry 4W ; Expire 1D) ; Minimum TTL NS ns.local.domain. 1 PTR localhost. EOF Create the root.hints file with the following commands: Caution must be used to ensure there are no leading spaces in this file. cat > /home/named/etc/namedb/root.hints << "EOF" . 6D IN NS A.ROOT-SERVERS.NET. . 6D IN NS B.ROOT-SERVERS.NET. . 6D IN NS C.ROOT-SERVERS.NET. . 6D IN NS D.ROOT-SERVERS.NET. . 6D IN NS E.ROOT-SERVERS.NET. . 6D IN NS F.ROOT-SERVERS.NET. . 6D IN NS G.ROOT-SERVERS.NET. . 6D IN NS H.ROOT-SERVERS.NET. . 6D IN NS I.ROOT-SERVERS.NET. . 6D IN NS J.ROOT-SERVERS.NET. . 6D IN NS K.ROOT-SERVERS.NET. . 6D IN NS L.ROOT-SERVERS.NET. . 6D IN NS M.ROOT-SERVERS.NET. A.ROOT-SERVERS.NET. 6D IN A 198.41.0.4 B.ROOT-SERVERS.NET. 6D IN A 192.228.79.201 C.ROOT-SERVERS.NET. 6D IN A 192.33.4.12 D.ROOT-SERVERS.NET. 6D IN A 128.8.10.90 E.ROOT-SERVERS.NET. 6D IN A 192.203.230.10 F.ROOT-SERVERS.NET. 6D IN A 192.5.5.241 G.ROOT-SERVERS.NET. 6D IN A 192.112.36.4 H.ROOT-SERVERS.NET. 6D IN A 128.63.2.53 I.ROOT-SERVERS.NET. 6D IN A 192.36.148.17 J.ROOT-SERVERS.NET. 6D IN A 192.58.128.30 K.ROOT-SERVERS.NET. 6D IN A 193.0.14.129 L.ROOT-SERVERS.NET. 6D IN A 198.32.64.12 M.ROOT-SERVERS.NET. 6D IN A 202.12.27.33 EOF The root.hints file is a list of root name servers. This file must be updated periodically with the dig utility. A current copy of root.hints can be obtained from . Consult the BIND 9 Administrator Reference Manual for details. Create or modify resolv.conf to use the new name server with the following commands: Replace [yourdomain.com] with your own valid domain name. cp /etc/resolv.conf /etc/resolv.conf.bak && cat > /etc/resolv.conf << "EOF" search [yourdomain.com] nameserver 127.0.0.1 EOF Set permissions on the chroot jail with the following command: chown -R named.named /home/named To start the DNS server at boot, install the /etc/rc.d/init.d/bind init script included in the package. make install-bind Now start BIND with the new boot script: /etc/rc.d/init.d/bind start Test out the new BIND 9 installation. First query the local host address with dig: dig -x 127.0.0.1 Now try an external name lookup, taking note of the speed difference in repeated lookups due to the caching. Run the dig command twice on the same address: dig www.linuxfromscratch.org && dig www.linuxfromscratch.org You can see almost instantaneous results with the named caching lookups. Consult the BIND Administrator Reference Manual located at doc/arm/Bv9ARM.html in the package source tree, for further configuration options. The BIND package contains dig, dnssec-keygen, dnssec-signzone, host, isc-config.sh, lwresd, named, named-checkconf, named-checkzone, nslookup, nsupdate, rndc, rndc-confgen, libbind9, libdns, libisc, libisccc, libisccfg and liblwres. dig interrogates DNS servers. dnssec-keygen is a key generator for secure DNS. dnssec-signzone generates signed versions of zone files. host is a utility for DNS lookups. lwresd is a caching-only name server for local process use. named is the name server daemon. named-checkconf checks the syntax of named.conf files. named-checkzone checks zone file validity. nslookup is a program used to query Internet domain nameservers. nsupdate is used to submit DNS update requests. rndc controls the operation of BIND. rndc-confgen generates rndc.conf files.