利用 Linux 中 DNS 查找的缓冲功能加快网路的连接速度
用Firefox浏览网页的时候,一开始总会看到左下角有一行提示: “正在解析主机 xxx ...” 看上去是等待DNS服务器对域名的解析,于是闲来无事,决定做一个DNS Cache来提高下速度! 找了一下,有一个: [xport@Ubuntu ~] $ apt-cache search "dns" | fgrep "cach" dnsmasq - A small caching DNS proxy and DHCP server 去翻翻资料,设定的步骤如下: 1. 安装dnsmasq: # 安装dnsmasq的软件包 [xport@ubuntu ~] $ sudo apt-get install "dnsmasq" 2.设定dnsmasq接管本机的DNS解析请求: # 修改dnsmasq的配置文件 [xport@ubuntu ~] $ sudo gedit /etc/dnsmasq.conf # 找到下面的内容,并进行修改 # If you want dnsmasq to listen for DHCP and DNS requests only on # specified interfaces (and the loopback) give the name of the # interface (eg eth0) here. # Repeat the line for more than one interface. # interface= # Or you can specify which interface _not_ to listen on # except-interface= # Or which to listen on by address (remember to include 127.0.0.1 if # you use this.) listen-address=127.0.0.1 # 把这一行前面的注释去掉 3.修改dhclient的配置: # 修改dnsmasq的配置文件 [xport@ubuntu ~] $ sudo gedit /etc/dhcp3/dhclient.conf # 找到下面的内容,并进行修改 prepend domain-name-servers 127.0.0.1; # 把这一行前面的注释去掉 request subnet-mask, broadcast-address, time-offset, routers, domain-name, domain-name-servers, host-name, netbios-name-servers, netbios-scope; 4.修改resolv.conf的配置: [xport@ubuntu ~] $ sudo gedit /etc/resolv.conf # 因为dnsmasq会接管本机的DNS解析请求,所以把127.0.0.1的地址放在最前面 nameserver 127.0.0.1 nameserver xxx.xxx.xxx.xxx nameserver xxx.xxx.xxx.xxx search localdomain 5. 重新开启dnsmasq的服务: [xport@ubuntu ~] $ sudo /etc/init.d/dnsmasq restart (编辑:银川站长网) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |