systemd[1]: Starting dnsmasq - A lightweight DHCP and caching DNS server...
dnsmasq[6120]: dnsmasq: syntax check OK.
dnsmasq[6133]: started, version 2.76 cachesize 150
dnsmasq[6133]: compile time options: IPv6 GNU-getopt DBus i18n IDN DHCP DHCPv6 no-Lua TFTP conntrack ipset auth DNSSEC loop-detect inotify
dnsmasq[6133]: no servers found in /run/dnsmasq/resolv.conf, will retry
dnsmasq[6133]: read /etc/hosts - 5 addresses
systemd[1]: Started dnsmasq - A lightweight DHCP and caching DNS server.
安装 dnsmasq 之后发现无法解析域名了,nslookup 显示请求被拒绝。dnsmasq 的日志显示如上,提示读取/run/dnsmasq/resolv.conf
中的域名服务器,但文件为空,搜索发现有直接修改该文件的方案,但在测试后发现该文件每次重启 dnsmasq 服务的时候都会重新生成,修改无法保存。
dnsmasq 在默认安装的情况下被设置为若 resolvconf 已安装的话,则与 resolvconf 集成。这就意味着 dnsmasq 将其监听的地址(127.0.0.1)发送给 resolvconf,并使用 resolvconf 的可用域名服务器列表生成自己的上游域名服务器列表。dnsmasq 的 resolvconf 钩子脚本/etc/resolvconf/update.d/dnsmasq
生成/var/run/dnsmasq/resolv.conf
。这个脚本在每次 resolvconf 运行的时候触发。
需要编辑etc/default/dnsmasq
文件,并设置IGNOR_RESOLVCONF=yes
,这样的话 dnsmasq 就不会直接查找/var/run/dnsmasq/resolv.conf
中的内容了。
/etc/init.d/dnsmasq
:
# RESOLV_CONF:
# If the resolvconf package is installed then use the resolv conf file
# that it provides as the default.Otherwise use /etc/resolv.conf as
# the default.
#
# If IGNORE_RESOLVCONF is set in /etc/default/dnsmasq or an explicit
# filename is set there then this inhibits the use of the resolvconf-provided
# information.
#
# Note that if the resolvconf package is installed it is not possible to
# override it just by configuration in /etc/dnsmasq.conf, it is necessary
# to set IGNORE_RESOLVCONF=yes in /etc/default/dnsmasq.
if [ ! "$RESOLV_CONF" ] &;&;
[ "$IGNORE_RESOLVCONF" != "yes" ] &;&;
[ -x /sbin/resolvconf ]
then
RESOLV_CONF=/run/dnsmasq/resolv.conf
fi
