Move folder, add cover image

1 files changed, 0 insertions, 158 deletions

diff --git a/content/posts/WIP-openbsd-dhcp-server/index.org b/content/posts/WIP-openbsd-dhcp-server/index.org
deleted file mode 100644
index a36ca90..0000000
--- a/content/posts/WIP-openbsd-dhcp-server/index.org
+++ /dev/null
@@ -1,158 +0,0 @@
-#+TITLE: How to Setup a DHCP server on OpenBSD
-#+DATE: 2020-07-10T16:10:09-04:00
-#+DRAFT: true
-#+DESCRIPTION: Cofiguring dhcpd for a small home network on OpenBSD
-#+TAGS[]: openbsd dhcp
-#+KEYWORDS[]: openbsd dhcp
-#+SLUG:
-#+SUMMARY:
-
-[[https://www.openbsd.org/faq/faq4.html#Download][OpenBSD]] makes a great router. It's simplicity and ease of
-configuration makes it perfect for network infrastructure
-applications. Everything you need to build a network
-of any size is built into the base system, plus its man pages and
-examples cover everything you'd need to know.
-
-While I've been an OpenBSD user for years, I'm finally in the process
-of replacing the router provided by my ISP with a [[{{< ref "pcengines-comparison" >}}][PC Engines]] APU2E4
-[[{{< ref "installing-openbsd-on-pcengines" >}}][running OpenBSD]].
-
-One of the key services that I have to setup for this is the [[https://en.wikipedia.org/wiki/Dynamic_Host_Configuration_Protocol][DHCP]]
-server, which is responsible for giving out IP addresses to machines
-when they join the network.
-
-This task is incredibly easy on OpenBSD, as it comes with =dhcpd= on
-the base system. The OpenBSD project provides excellent documentation
-for this system under [[http://man.openbsd.org/dhcpd][=dhcpd(8)=]] for the DHCP server itself,
-[[http://man.openbsd.org/dhcpd.conf.5][=dhcpd.conf(5)=]] for the configuration file, and [[http://man.openbsd.org/dhcpd.leases.5][=dhcpd.leases(5)=]] for
-the lease database format.
-
-The example we'll be going over in this post will be extremely simple,
-as it's only for a small home network without any advanced options. I
-encourage you to read the man pages if you're ever setting up your
-own, as I might not cover what you need to know here.
-
-For my case, I'll be handing out IP addresses in the =192.168.0.0/24=
-subnet, with addresses =192.168.0.30= through =192.168.0.200= assigned
-with DHCP. The gateway router will be at the address =192.168.0.1=.
-
-I will assign the devices on the network the =home.local= domain. I'll
-use =192.168.0.23= as the DNS server, as I have a caching DNS server
-which filters out advertisers setup at that address, with =8.8.8.8= as
-the secondary DNS server in case my DNS server ever goes down.
-
-I'll also set the default lease time to one week, and the maximum
-lease time to one month.
-
-To jumpstart the configuration, I'll first copy the file from
-=/etc/examples/dhcpd.conf= to =/etc/dhcpd.conf= so I don't have to
-start from scratch.
-
-#+BEGIN_SRC
-doas cp /etc/examples/dhcpd.conf /etc/
-#+END_SRC
-
-Then I'll edit the file with =mg=, an emacs-like editor that comes
-with OpenBSD.
-
-#+BEGIN_SRC
-doas mg /etc/dhcpd.conf
-#+END_SRC
-
-Here's the finished configuration file.
-
-#+BEGIN_SRC
-# Network:          192.168.0.0/255.255.255.0
-# Domain name:      home.local
-# Name servers:     192.168.0.23 and 8.8.8.8
-# Default router:   192.168.0.1
-# Addresses:        192.168.0.30 - 192.168.0.200
-#
-option  domain-name "home.local";
-option  domain-name-servers 192.168.0.23, 8.8.8.8;
-
-subnet 192.168.0.0 netmask 255.255.255.0 {
-    option routers 192.168.0.1;
-
-    range 192.168.0.30 192.168.0.200;
-    default-lease-time 604800;
-    max-lease-time 2592000;
-
-    host example-static-client {
-            hardware ethernet 22:33:44:55:66:77;
-            fixed-address 192.168.0.201;
-    }
-}
-#+END_SRC
-
-Let's go through this line-by-line to get a better understanding of
-what's going on here.
-
-The comments at the top are just to help understand the file at a
-glance, and don't serve any practical function.
-
-An =option= can be specified globally or per-subnet, and can also be
-specified per-client for [[https://en.wikipedia.org/wiki/Bootstrap_Protocol][BOOTP]] clients. Here I set the domain name
-and DNS servers globally.
-
-#+BEGIN_SRC
-option domain-name "home.local"
-option domain-name-servers 192.168.0.23, 8.8.8.8;
-#+END_SRC
-
-Then I declare the configuration for my subnet.
-
-#+BEGIN_SRC
-subnet 192.168.0.0 netmask 255.255.255.0 {
-
-}
-#+END_SRC
-
-The subnet-specific configuration goes inside the braces. You may
-specify as many subnets as you need in the configuration file,
-although for a home network like this I only need one.
-
-Inside of the subnet configuration block, I set the gateway router and
-the range of IPs I'll be handing out with DHCP.
-
-#+BEGIN_SRC
-option routers 192.168.0.1;
-
-range 192.168.0.30 192.168.0.200;
-#+END_SRC
-
-I also specify the default lease time and max lease time. The default
-lease time is the number of seconds the DHCP server will hold a lease
-for a client if the client doesn't ask for a specific lease length,
-and the max lease length is the maximum allowed lease length. Here I
-set the default to 604800 (one week), and the max to 2592000 (one
-month).
-
-#+BEGIN_SRC
-default-lease-time 604800;
-max-lease-time 2592000;
-#+END_SRC
-
-Finally I have an example static client configuration. Here the client
-with the MAC address =22:33:44:55:66:77= will all ways be given the IP
-=192.168.0.201=. This is useful when you want to assign a specific IP
-to a certain client without having to manually configure the IP.
-
-#+BEGIN_SRC
-host example-static-client {
-        hardware ethernet 22:33:44:55:66:77;
-        fixed-address 192.168.0.201;
-}
-#+END_SRC
-
-To run the DHCP server, I first enable, then start it using =rcctl=.
-
-#+BEGIN_SRC
-doas rcctl enable dhcpd
-doas rcctl start dhcpd
-#+END_SRC
-
-To see the leases the =dhcpd= is currently holding, you can check
-=/var/db/dhcpd.leases=.
-
-If you followed along these steps, you not have a running DHCP sever!