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Difference between revisions of "Package:Dnsmasq"
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{{warning|As this page deals with DNS it has the potential to break your internet access! Ensure you have stable live media that can restore your system.}} | |||
Dnsmasq is a dns cache, dhcp, and pxe server. This package is lightweight, and will work well for individual computers, or small lans. | Dnsmasq is a dns cache, dhcp, and pxe server. This package is lightweight, and will work well for individual computers, or small lans. | ||
Revision as of 10:39, May 11, 2015
Dnsmasq
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As this page deals with DNS it has the potential to break your internet access! Ensure you have stable live media that can restore your system.
Dnsmasq is a dns cache, dhcp, and pxe server. This package is lightweight, and will work well for individual computers, or small lans.
Installation
root # emerge net-dns/dnsmasq
Configuration
/etc/dnsmasq.conf is where most of dnsmasq's configuration is done. It's file is well commented, and ready for several scenarios.
DNS only
place other upstream dns servers in /etc/resolv.dnsmasq.conf with your preferred DNS server at the top of the list. The first console command in the block will wipe out existing /etc/resolv.dnsmasq.conf settings, back them up if you have anything important in them.
root # echo "nameserver 8.8.8.8" > /etc/resolv.dnsmasq.conf root # echo "resolv-file=/etc/resolv.dnsmasq.conf" >> /etc/dnsmasq.conf root # echo "listen-address=127.0.0.1" >> /etc/dnsmasq.conf
Now your localhost / 127.0.0.1 is your primary DNS to point net connection scripts to.
root # echo "nameserver 127.0.0.1" > /etc/resolv.conf root # echo "nameserver 8.8.8.8" >> /etc/resolv.conf
Runtime
root # rc-update add dnsmasq default root # rc
Testing
DNS only
net-dns/bind-tools contains dns testing utilities. To verify that dns requests are returned from the local server: emerge bind-tools, then run:
root # dig google.com