A lightweight DHCP/caching DNS server
Dnsmasq is lightweight, easy to configure DNS forwarder and DHCP server.
It is designed to provide DNS and, optionally, DHCP, to a small network.
It can serve the names of local machines which are not in the global
DNS. The DHCP server integrates with the DNS server and allows machines
with DHCP-allocated addresses to appear in the DNS with names configured
either in each host or in a central configuration file. Dnsmasq supports
static and dynamic DHCP leases and BOOTP for network booting of diskless
Q: Why does dnsmasq open UDP ports >1024 as well as port 53.
Is this a security problem/trojan/backdoor?
A: The high ports that dnsmasq opens are for replies from the upstream
nameserver(s). Queries from dnsmasq to upstream nameservers are sent
from these ports and replies received to them. The reason for doing this is
that most firewall setups block incoming packets _to_ port 53, in
dnsmasq - A lightweight DHCP and caching DNS server.
dnsmasq is a lightweight DNS, TFTP and DHCP server. It is
intended to provide coupled DNS and DHCP service to a LAN.
Dnsmasq accepts DNS queries and either answers them from a
release 0.4 - initial public release
release 0.5 - added caching, removed compiler warning on linux PPC
release 0.6 - TCP handling: close socket and return to connect state if we
can't read the first byte. This corrects a problem seen very
occasionally where dnsmasq would loop using all available CPU.
Added a patch from Cris Bailiff <firstname.lastname@example.org
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Softw
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