当我尝试使用service bind9 restart或者service bind9 start命令在Ubuntu Linux下重新启动BIND 9服务器时，出现以下错误：resolvconf: Error: /etc/resolv.conf must be a symlink``resolvconf：错误：/etc/resolv.conf必须是一个符号链接。

我该如何解决这个问题？
您可以通过执行以下命令来解决此错误(打开终端并以root用户身份登录)：

$ sudo -i
# cd /etc
# rm resolv.conf
# ln -s /etc/resolvconf/run/resolv.conf .
# service bind9 restart

Postfix错误

如果收到如下错误(后缀错误以及以上错误)：

* Stopping domain name service... bind9                                                                                                                                                                                              [ OK ] 
* Starting domain name service... bind9                                                                                                                                                                                                     
/usr/sbin/postconf: fatal: open /etc/postfix/main.cf: No such file or directory
cp: `/etc/resolv.conf' and `/etc/resolv.conf' are the same file
run-parts: /etc/resolvconf/update-libc.d/postfix exited with return code 1
run-parts: /etc/resolvconf/update.d/libc exited with return code 1

执行以下命令：

$ sudo -i
# cd /etc
# mkdir postfix
# touch postfix/main.cf
# rm resolv.conf
# ln -s /etc/resolvconf/run/resolv.conf .
# service bind9 restart