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dnsmasq/readme.md
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@ -12,7 +12,7 @@ Lightweight DHCP and DNS server.
* [Arch wiki](https://wiki.archlinux.org/index.php/dnsmasq)
dnsmasq solves the problem of accessing self hosted stuff when you are inside
your network. As asking googles DNS for `blabla.org` will return your
your network. As asking google's DNS for `blabla.org` will return your
very own public IP and most routers/firewalls wont allow this loopback,
where your requests should go out and then right back.</br>
Usual quick way to solve this issue is editing the `hosts` file on your machine,
@ -107,17 +107,16 @@ of the dnsmasq host as the DNS server.
# resolv.conf
A file that contains DNS nameservers to be used by the linux machine it sits on.</br>
Since dnsmasq, a DNS server, is running right on this machine,
the entries just point to localhost.</br>
`resolv.conf`
```
nameserver ::1
nameserver 127.0.0.1
```
A file that contains DNS nameservers to be used by the linux machine it sits on.</br>
Since dnsmasq, a DNS server, is running right on this machine,
the entries just point to localhost:</br>
`nameserver ::1`</br>
`nameserver 127.0.0.1`
Bit of an issue is that this file is often managed by various system services,
like dhcpcd, systemd, networkmanager... and they change it as they see fit.</br>
@ -163,32 +162,32 @@ where you can assign a hostname to an IP.</br>
dnsmasq reads `/etc/hosts` for IP hostname pairs and adds them to its own
resolve records.
Unfortunately no wildcard support.
But as seen in the `dnsmasq.conf` there is a wildcard section solving this,
so `blabla.org` stuff here is just for show.
Unfortunately no wildcard support.</br>
But as seen in the `dnsmasq.conf`, when domain is set it acts as a wildcard
rule. So `blabla.org` stuff here is just for show.
# Start the service
`sudo systemctl enable --now dnsmasq`
*Make sure you disable other DHCP servers on the network,
usually a router is running one.*
Make sure you **disable other DHCP servers** on the network,
usually a router is running one.
# Test it
#### DHCP
Set some machine on the network to use DHCP for its network setting.</br>
It should just work.
Network connection should just work with full connectivity.
You can check on the dnsmasq host, file `/var/lib/misc/dnsmasq.leases`
for the active leases. Location of the file can vary base on your linux distro.
#### DNS
nslookup is utility that checks DNS mapping,
nslookup is a utility that checks DNS mapping,
part of `bind-utils` or `bind-tools` packages, again depending on the distro.
But also part of windows.
* `nslookup google.com`
* `nslookup gateway`