These are some quick notes from installing Let's encrypt on a Ubuntu server.

For anyone trying to do this I would recomend the Digital Ocean artical on this. DigitalOcean Let's Encrypt

Install applictions apt install python-certbot-nginx letsencrypt

Modify nginx to add virtual host

/etc/nginx/sites-enabled/default

        server_name *.invoke.coffee …

I think many people like me have been eyeing these Chinese made small x86 boards as potential routers.

Well i decided to be one on the brave and give one a shot. I have not seen many posts discussing these so I decided to add my voice to the discussion …

I recently purchased a mazda 3 2016 and one of the things that I was most excited with is the infotainment system.

I am planning on a serious of posts detailing my journey to hack and modify my infotainment system so far my priories are.

• Gain SSH access
• Disable speed …

First thing that you will need to do to start modifying the Mazda CMU is to gain SSH Access.

• You will need a compatible USB to Ethernet adapter.
• Here is the one that I used.
  • Mazda hacks has some other options, http://mazda3hacks.com/doku.php?id=notes:sshnotes
  • Connect …

I spent quite a bit of time integrating some nexus switches into Cisco ACS. So wanted to share a couple of notes. I will be talking a lot about NX-OS RBAC rolls so here is a good primer if you are not familiar with it.

http://routing-bits.com/2011/05 …

I started offering SSL/TLS on my site with lets encrypt beta certificates, now I wanted to move to enforcing SSL/TLS.

For this I will be using mod_rewrite.

First I enabled mod_rewite

sudo a2enmod rewrite

Then edit /etc/apache2/apache2.conf and add

RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule …

I have been working with SCCM 2012 a lot lately and I run across a tool that has become invaluable for me.

Distribution Point Job queue manager

This is a part of the Config manager toolkit. What this allows you to do is view the status of the distribution manger …

If mailx is just not hardcore enough for you you have to do your SMTP via telnet.

In all seriousness though sometimes you do really want to walk though a SMTP session or validate a mail server. SMTP is a pretty simple Protocol and you can reasonable send simple emails …

When a router is running OSPF the OSPF process will select and use a Router ID. This ID must be unique inside of an OSPF area.

This ID will not change unless the process is restarted or otherwise cleared. This is due in part as a topology convergence will be …

If you have ever worked with Powershell you send up running into DateTime stamps that are stored in FileTime instead of DateTime.

You can easily convert these to a date time object with the DateTime type accelerator.

PS C:\> [datetime]::FromFileTime(129948127853609000)
Monday, October 15, 2012 3:13:05 PM …