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开发学院软件开发Shell 升级7.x的bind到最新的bind 9.2.1 阅读

升级7.x的bind到最新的bind 9.2.1

 2009-06-30 03:42:00 来源:WEB开发网   
核心提示:作者:冷风 Berkeley Internert Name Domain(BIND)是我们所熟知的域名软件,它具有广泛的使用基础,升级7.x的bind到最新的bind 9.2.1,Internet上的绝大多数DNS服务器都是基于这个软件的,BIND目前由ISC(Internet Software Consorti

  作者:冷风
  
   Berkeley Internert Name Domain(BIND)是我们所熟知的域名软件,它具有广泛的使用基础,Internet上的绝大多数DNS服务器都是基于这个软件的。BIND目前由ISC(Internet Software Consortium)负责维护,具体的开发由Nominum(www.nominum.com)公司来完成。
  
   CERT于2002年6月4日发布了一个有关 ISC BIND 9 的安全漏洞.
  
   由于网络上很多的功能运作有赖于DNS的正常运转, 所以受到此漏洞影响的层面可能很广.
  
   受到影响的版本是 9.2.1 以前的版本, 8.x 与 4.x 版并不受到影响, 攻击者可以通过发送特殊的数据包导致 BIND 9 DNS Service 无法运作. 不过攻击者并不能利用这个漏洞在DNS服务器上运行代码或者写入数据.
  
   ISC 已经发布了 BIND 9.2.1 以修正此安全漏洞, 建议所有使用 BIND 9 的系统尽快升级.
  
   BIND9.2.1下载地址:
  
   http://www.isc.org/products/BIND/bind9.html
  
  
   按照下面的步骤安装升级,程序将被安装在/usr/local/bind921目录.
  
   备份和卸载原来的bind:
  
  
  
  # cp /etc/named.conf /etc/named.conf.bak
  # cp -R /var/named /var/named.bak
  # rpm -e bind bind-devel bind-utils caching-nameserver
  
   编译安装新的bind921:
  
  # tar zxvf bind-9.2.1.tar.gz
  # cd bind-9.2.1
  # ./configure --with-libtool --enable-threads --prefix=/usr/local/bind921
  # make
  # make install
   
  
   恢复数据:
  
  # mkdir /usr/local/bind921/etc
  # cp /etc/named.conf.bak /usr/local/bind921/etc/named.conf
  # mkdir -p /usr/local/bind921/var/named/run
  # useradd -u 25 -d /usr/local/bind921/var/named -s /bin/false named
  # cp -r /var/named.bak/* /usr/localbind921/var/named
  # chown -R named /usr/local/bind921/var
  
   修改配置文集:
  
  修改/usr/local/bind921/etc/named.conf使之可以在我们新安装的系统上工作,将:
  
  options {
   directory "/var/named";
  
   改为:
  
  options {
   directory "/usr/local/bind921/var/named";
  
   注释掉原来的rndc.key,当然如果一会你想使用rndc来控制bind的话还需要它,我这里不多讲:
  
  include "/etc/rndc.key";
  
   为:
  
  //include "/etc/rndc.key";
  
   创建启动教本:
  
   我主要是根据redhat自带的rpm包进行修改的,大家可以参考一下然后根据自己的情况修改
  
  #!/bin/bash
  #
  # named This shell script takes care of starting and stopping
  # named (BIND DNS server).
  #
  # chkconfig: - 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
  export PATH="/sbin:/usr/sbin:/bin:/usr/bin:/usr/X11R6/bin:/usr/local/bind921/bin:/usr/local/bind921/sbin"
  # Source networking configuration.
  . /etc/sysconfig/network
  
  # Check that networking is up.
  [ "${NETWORKING}" = "no" ] && exit 0
  
  #[ -f /etc/sysconfig/named ] && . /etc/sysconfig/named
  
  [ -f /usr/local/bind921/sbin/named ] || exit 0
  
  [ -f /usr/local/bind921/etc/named.conf ] || exit 0
  
  RETVAL=0
  prog="/usr/local/bind921/sbin/named"
  
  start() {
  # Start daemons.
  if [ -n "`/sbin/pidof named`" ]; then
  echo -n $"$prog: already running"
  return 1
  fi
  echo -n $"Starting $prog: "
  if [ -n "${ROOTDIR}" -a "x${ROOTDIR}" != "x/" ]; then
  OPTIONS="${OPTIONS} -t ${ROOTDIR}"
  fi
  # Since named doesn't return proper exit codes at the moment
  # (won't be fixed before 9.2), we can't use daemon here - emulate
  # its functionality
  base=$prog
  named -u named ${OPTIONS}
  RETVAL=$?
  usleep 100000
  if [ -z "`/sbin/pidof named`" ]; then
  # The child processes have died after fork()ing, e.g.
  # because of a broken config file
  RETVAL=1
  fi
  [ $RETVAL -ne 0 ] && failure $"$base startup"
  [ $RETVAL -eq 0 ] && touch /var/lock/subsys/named && success $"$base startup"
  echo
  return $RETVAL
  }
  stop() {
  # Stop daemons.
  echo -n $"Stopping $prog: "
  killproc named
  RETVAL=$?
  [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/named
  echo
  return $RETVAL
  }
  rhstatus() {
  /usr/local/bind921/sbin/rndc status
  return $?
  }
  restart() {
  stop
  start
  }
  reload() {
  /usr/local/bind921/sbin/rndc reload >/dev/null 2>&1 || /usr/bin/killall -HUP named
  return $?
  }
  probe() {
  # named knows how to reload intelligently; we don't want linuxconf
  # to offer to restart every time
  /usr/local/bind921/sbin/rndc reload >/dev/null 2>&1 || echo start
  return $?
  }
  
  # See how we were called.
  case "$1" in
  start)
  start
  ;;
  stop)
  stop
  ;;
  status)
  rhstatus
  ;;
  restart)
  restart
  ;;
  condrestart)
  [ -f /var/lock/subsys/named ] && restart
  ;;
  reload)
  reload
  ;;
  probe)
  probe
  ;;
  *)
  echo $"Usage: $0 {start|stop|status|restart|condrestart|reload|probe}"
  exit 1
  esac
  
  exit $?
  
   把上面的教本复制到/etc/init.d/并改名为named,修改权限为600
  
   chmod 600 /etc/inid.d/named
  
   将/usr/local/bind921/bin和/usr/local/bind921/sbin添加到/etc/profile中
  
  if [ `id -u` = 0 ]; then
  pathmunge /sbin
  pathmunge /usr/sbin
  pathmunge /usr/local/sbin
  pathmunge /usr/local/mysql/bin
  pathmunge /usr/local/bind921/bin
  pathmunge /usr/local/bind921/sbin
  fi
   测试:
  
  # chkconfig --add 456 named
  # chkconfig --level 345 named on
  # /etc/init.d/named start
  
   记得执行如果不能启动,请查看/var/log/mesages里的日志并根据日志进行排错,也可以到本站论坛寻求帮助.
 

Tags:升级 bind

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