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DoTheEvolution 2020-05-06 02:58:00 +02:00
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dnsmasq/readme.md
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@ -20,9 +20,17 @@ Lightweight DHCP and DNS server.
└── resolve.conf
```
* `dnsmasq.conf` - the main config file for dnsmasq where dns and dhcp server is set
* `resolve.conf` - a file containing ip addresses of dns nameservers to be used
by the machine it resides on
* `hosts` - a file that can provide additional hostname-ip mapping
`hosts` and `resolve.conf` are just normal system files always in use on any linux
system.
# Installation
Install dnsmasq from your linux official repos
Install dnsmasq from your linux official repos.
# Configuration
@ -95,7 +103,7 @@ Check if the content is what was set.
* `cat /etc/resolv.conf`
If it was changed by dhcpcd, edit `/etc/dhcpcd.conf`
If it was changed by dhcpcd before the +i flag took effect, edit `/etc/dhcpcd.conf`
and add `nohook resolv.conf` at the end.</br>
Restart the machine, disable the immutability, edit it again,
add immutability, and check.
@ -108,11 +116,11 @@ add immutability, and check.
# /etc/hosts
dnsmasq reads `/etc/hosts` for IP hostname pairs entries.
This is where you can add hostnames you wish to route to local servers.
This is where you can add hostnames you wish to route to any ip you want.
Unfortunately no wildcard support.
But as seen in the `dnsmasq.conf` there is a wildcard section solving this,
so blabla stuff here is redundant.
so blabla stuff here is just for show.
`hosts`
```
@ -134,15 +142,17 @@ so blabla stuff here is redundant.
#### DHCP
Set some machine to use DHCP for its network setting.
Set some machine to use DHCP for its network setting.</br>
It should just work.
You can check on the dnsmasq host, file `/var/lib/misc/dnsmasq.leases`
for the active leases.
for the active leases. Location of the file can vary base on your linux distro.
#### DNS
nslookup is utility that checks DNS mapping, part of `bind-utils` or `bind-tools`,
again depending on the distro.
* `nslookup google.com`
* `nslookup gateway`
* `nslookup docker-host`