How to Secure Your Linux Webserver

I don't remember which distro of Linux Webserver I used - My computer has Ubuntu, so my guess is that flavor.

I'm working in datafile.txt - But not so fast!

The initial edited datafile.txt file.

First is remembering the password for the second, non-root, user - or, simply changing it!

So instead of following the direction exactly, It threw me an error. Still opened nano, but not datafile.txt. Just a blank file and I made my confusion known.

The next step involves changing the file owner to another user - one ubuntu:app-data-group. If it's an already installed user on the system, it's not showing up for me.

Or it may be the fact that the dashes on a standard, US keyboard are not the right character, but instead ASCII 150. That's a first - Do you encounter things like this often?

So I just changed the owner to enduser.

The point is still made, right?

You can see in opening the passwd file the processes and users - Nobody except the root user has a user ID that starts with 0, so no one has unnecessary and possibly dangerous permissions on this system.

We can see running services on our Linux Server...of which I have none.

Installing packages of programs and letting them run, inter- or intranet facing, wouldn't be too hard.

EMPLOYER: This is Networking in Linux.

Comments

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...

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.

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...

RUN TCP/IP | Morgan Lucas is Tech Blogging

Search This Blog