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這篇文章主要講解了“Linux下怎么用dnsmasq做dns cache server配置”,文中的講解內(nèi)容簡(jiǎn)單清晰,易于學(xué)習(xí)與理解,下面請(qǐng)大家跟著小編的思路慢慢深入,一起來(lái)研究和學(xué)習(xí)“Linux下怎么用dnsmasq做dns cache server配置”吧!
安裝過(guò)程比較簡(jiǎn)單
yum -y install dnsmasq* wget http://www.keepalived.org/software/keepalived-1.2.9.tar.gz tar zxvf keepalived-1.2.9.tar.gz cd keepalived-1.2.9 ./configure --prefix=/usr/local/keepalived make && make install mkdir /etc/keepalived cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/ ln -s /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/ ln -s /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/ ln -s /usr/local/keepalived/sbin/keepalived /usr/sbin/ chkconfig --add keepalived chkconfig --level 35 keepalived on
keepalived的配置很簡(jiǎn)單,只需要配置一個(gè)vip可以在兩臺(tái)server之間飄來(lái)飄去就可以實(shí)現(xiàn)主備了
! configuration file for keepalived global_defs { notification_email { xxx@xxx.com } notification_email_from xxx@xxx.com smtp_server 127.0.0.1 smtp_connect_timeout 30 router_id lvs_devel } vrrp_instance dnscache { state master // 另一臺(tái)配置backup interface eth2 // 在哪個(gè)接口上進(jìn)行服務(wù)器狀態(tài)檢測(cè) virtual_router_id 51 priority 180 // backup機(jī)器上配置100 advert_int 1 // 檢查間隔,單位為秒 authentication { auth_type pass auth_pass 1234 } virtual_ipaddress { // vip設(shè)置,指定到內(nèi)網(wǎng)網(wǎng)卡 192.168.100.99/24 dev eth2 } }
dnsmasq的配置也很簡(jiǎn)單
resolv-file=/etc/resolv.dnsmasq.conf cache-size=1000 conf-dir=/etc/dnsmasq.d
將dns地址寫入到/etc/resolv.dnsmasq.conf文件中
echo "nameserver 8.8.8.8" > /etc/resolv.dnsmasq.conf
本機(jī)和局域網(wǎng)其它全部的服務(wù)器dns解析都用它
echo "nameserver 192.168.100.99" > /etc/resolv.conf
最后找一臺(tái)局域網(wǎng)server驗(yàn)證一下,如果能解析就說(shuō)明正常了.
nslookup www.google.cn 192.168.100.99
此方案只適合小型企業(yè),規(guī)模少的情況下使用,解析量大的時(shí)候還是用bind最好。
下面是其它網(wǎng)友的補(bǔ)充:
復(fù)制代碼 代碼如下:
sudo pacman -s --needed dnsmasq
cd /etc
[admin@huangye etc]$ sudo cp -v dnsmasq.conf{,.orig}
`dnsmasq.conf' -> `dnsmasq.conf.orig'
[admin@huangye etc]$ sudo vim dnsmasq.conf
相比來(lái)說(shuō),dnsmasq的配置簡(jiǎn)單多了:
復(fù)制代碼 代碼如下:
resolv-file=/etc/dnsmasq.resolv.conf
addn-hosts=/etc/dnsmasq.hosts
local=/localnet/
no-dhcp-interface=eth0
conf-dir=/etc/dnsmasq.d
復(fù)制代碼 代碼如下:
[admin@huangye etc]$ sudo cp -v resolv.conf dnsmasq.resolv.conf
password:
`resolv.conf' -> `dnsmasq.resolv.conf'
sudo mkdir /etc/dnsmasq.d
sudo touch /etc/dnsmasq.hosts
sudo /etc/rc.d/dnsmasq start
最后,別忘記加入rc.conf daemons,注意要在network后面。
dnsmasq 可從額外的hosts文件讀取條目,如可以這樣添加正向解析:
echo "ip地址 域名" > /etc/dnsmasq.hosts
另外,重啟dnsmasq可以用sighup(可以在修改hosts文件后,讓配置生效)
killall -s sighup dnsmasq
查看服務(wù)狀態(tài):
netstat -tunl
tcp 0 0 0.0.0.0:53 0.0.0.0:* listen
udp 0 0 0.0.0.0:53 0.0.0.0:*
感謝各位的閱讀,以上就是“Linux下怎么用dnsmasq做dns cache server配置”的內(nèi)容了,經(jīng)過(guò)本文的學(xué)習(xí)后,相信大家對(duì)Linux下怎么用dnsmasq做dns cache server配置這一問(wèn)題有了更深刻的體會(huì),具體使用情況還需要大家實(shí)踐驗(yàn)證。這里是億速云,小編將為大家推送更多相關(guān)知識(shí)點(diǎn)的文章,歡迎關(guān)注!
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