dns

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dnsmasq

# cat /etc/dnsmasq.conf
dhcp-authoritative
server=192.168.1.6

log-facility=/var/log/dnsmasq.log
log-queries

local=/example.com/
domain=example.com

# cat /etc/dnsmasq.conf | grep "^dhcp-host" | awk -v OFS="\t" -F "," '{print $3, $2}' | sort -k2 > /etc/hosts.pre
addn-hosts=/etc/hosts.pre

# DHCP
dhcp-range=192.168.1.150,192.168.1.200,255.255.255.0,1d
dhcp-option=option:router,192.168.1.6
dhcp-option=option:ntp-server,217.7.239.199

# PXE
dhcp-boot=pxelinux.0,srv,192.168.1.9
dhcp-boot=net:sip,http://srv/snom3x0/snom3x0.xml,srv,192.168.1.9

DNS

# SPF
http://wiki.hetzner.de/index.php/DNS_SPF

# dig
dig txt example.com @8.8.8.8
dig example.com | grep -v ";" | grep A
dig -x 8.9.10.11 | grep IN

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