Dnsmasq

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net-dns/dnsmasq


Source Repository:Repository:Gentoo Portage Tree

http://www.thekelleys.org.uk/dnsmasq/

Summary: Small forwarding DNS server

Use Flags

auth-dns
Add support for acting as an authorative DNS server.
conntrack
Add support for Linux conntrack connection marking.
dhcp-tools
Install extra command line tools for manually managing DHCP leases.
dhcp
Enable support for acting as a DHCP server.
dnssec
Enable support DNSSEC validation and caching.
script
Enable support for calling scripts when leases change.
tftp
Enables built in TFTP server for netbooting.

News

Oleg

Important Updates

Improtant Updates
2016-05-05 by Oleg
Oleg

PHP and Kernel Updates

PHP and Kernel Updates
2016-04-01 by Oleg
Oleg

OpenSSL Update

OpenSSL Update
2016-03-04 by Oleg
More...

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.

Installation

# 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

Important

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.

# echo "nameserver 8.8.8.8" > /etc/resolv.dnsmasq.conf
# echo "resolv-file=/etc/resolv.dnsmasq.conf" >> /etc/dnsmasq.conf
# 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.

# echo "nameserver 127.0.0.1" > /etc/resolv.conf
# echo "nameserver 8.8.8.8" >> /etc/resolv.conf

Runtime

# rc-update add dnsmasq default
# rc

Testing

DNS only

Package:Bind-tools contains dns testing utilities. To verify that dns requests are returned from the local server: emerge bind-tools, then run:

# dig google.com | grep -i server
;; SERVER: 127.0.0.1#53(127.0.0.1)