Skip to main content

It's An Ubuntu Server!: Username Resolution with DNSmasq

I don’t actually have a domain name to use but let’s pretend!





My server’s name is called Saturnine-U

We could set up a host file on every machine on the network:

192.168.0.2  Saturnine-U (though I wonder how that - will fit in)

but that’s not efficient! Let’s use DNS, it’s like a central directory.

I can configure this on a Cisco router easily but Ubuntu? Well, that’s why we’re here! Learning!

Let’s install dnsmasq

(I type in sudu apt get dnsmasq because ‘get’ is how we…got stuff in Red Hat but nope, get should be install)



Nice, then I save and escape (before going back in to check that I saved properly)
and restart with sudo systemctl restart networking.
[I forgot ‘networking’ at first and got ‘too few arguments’ as a message. Helpful!]




Back to opening ports with sudo ufw allow 53/tcp
It also allows it for IPv6.

(I’m doing this in a starbucks so I can’t wander in and mess with their router. Well, I could, if I knew the IP address. Any guesses? Just kidding…)

I’d have to restart it. Ideally, I could ping Saturnine-U with just the name and it would work.

I’ll see if I can get it to work at home with my Comcast router and update if I can!
Labels:

Comments

Post a Comment

Popular posts from this blog

Connecting IoT Devices to a Registration Server (Packet Tracer, Cisco)

 If you're seeing this post, I'm helping you, and you probably have LI presence: React and share this post to help me in return.   In Packet Tracer, a demo software made by Cisco Systems. It certainly has changed a lot since 2016. It's almost an Olympic feat to even get started with it now, but it does look snazzy. This is for the new CCNA, that integrates, among other things, IoT and Automation, which I've worked on here before. Instructions here . I don't know if this is an aspect of "Let's make sure people are paying attention and not simply following blindly", or an oversight - The instructions indicate a Meraki Server, when a regular one is the working option here. I have to enable the IoT service on this server. Also, we assign the server an IPv4 address from a DHCP pool instead of giving it a static one. For something that handles our IoT business, perhaps that's safer; Getting a new IPv4 address every week or so is a minimal step against an...
Post a Comment
Read more

Create a Simple Network (Packet Tracer) + A Walkthrough

Again; I've done this, but now there's so many new things, I'm doing it again. The truly new portions were...everything on the right side of this diagram; The cloud needed a coax connector and a copper Ethernet connector. It's all easy to install, turn off the cloud (Weird), install the modules. Getting the Cable section of Connections was an unusual struggle - The other drop down menu had nothing within. It required going into the Ethernet options and setting the Provider Network to 'cable', which is the next step AFTER the drop-downs. The rest was typical DHCP and DNS setups, mainly on the Cisco server down there. The post is rather short - How about adding a video to it? Find out what A Record means - This site says 'Maps a name to an IP address', which is DNS. So it's another name for DNS? You can change them (presumably in a local context) to associate an IP address to another name.
Post a Comment
Read more

Review: Samsung Galaxy Buds 2 True Wireless Bluetooth Earbuds

  Ah yes, almost 3 years ago, I wrote this review (Despite getting the earbuds for Christmas, I wanted to use them for a few months before writing). And in December of 2023, the right one began to get dull regarding sound. I always make sure they're clean - Ear infections are no joke, clean your earbuds - so that wasn't it, I never got the verification code from Samsung to make an account for them to be repaired, and Samsung Support through chat told me to go to my local approved dealer, a random shop 50 miles away that wouldn't actually give me an estimate. I'd much rather repair than replace, especially if it's a gift. I'll open (or attempt to) the faulty one and look around and still use the other one. So here, let's get some new ones on sale, using a combination of giftcards and luck. I was torn between the colors, but I have, more than once, misplaced the black case and was unable to discern it because...most of my stuff is black. I need a case for thi...
Post a Comment
Read more