All posts by Mike Dixson

Solved: RKHunter Useful information in emails

I was trying to get this working by configuring the MAIL_CMD like so: echo -e “Subject: [rkhunter] Warnings found for ${HOST_NAME}\n\n” $(egrep -x “^\[.*\] Warning:.*” /var/log/rkhunter.log) | sendmail
It works but included a little extra part of the egrep command for some reason.

I couldn’t get around this but then I remembered we were going to be calling this using cronic ( https://habilis.net/cronic/ )
So I just changed my crontab to: cronic rkhunter –check –rwo –no-mail-on-warning
Now I get the warnings in a beautiful emails like so: ============================================

Cronic detected failure or error output for the command:
rkhunter –check –rwo –no-mail-on-warning

RESULT CODE: 1

ERROR OUTPUT:

STANDARD OUTPUT:
Warning: The file properties have changed:
         File: /usr/bin/mail
         Current inode: 18331    Stored inode: 18308
         Current file modification time: 1574699160 (25-Nov-2019 16:26:00)
         Stored file modification time : 1574686593 (25-Nov-2019 12:56:33)
Warning: The file properties have changed:
         File: /usr/bin/mail.mailutils
         Current inode: 18320    Stored inode: 18297

START TIME: Mon Nov 25 16:28:01 UTC 2019
END TIME:   Mon Nov 25 16:28:34 UTC 2019

=========================================

Running Byobu by Default on Zsh

To make Byobu default on your local machine

Add the following line to the bottom of your ~/.zshrc
_byobu_sourced=1 . /usr/bin/byobu-launch 2>/dev/null || true

To make Byobu default when SSH’ing into a machine

Add the same line to the bottom of ~/.zprofile

Update: I’ve not been able to get this working on AWS. I’m using Ubuntu… anyone got any additional tips?

Favourite Linux CLI Tools

This will be a continually updated list of my favourite Linux CLI tools

  • ZSH with OhMyZsh installed
  • Disk Usage
    • NCurses Disk Usage – CLI graphical and browseable disk space explorer.
    • sudo apt install ncdu
    • Can also write output to a file to explore at a different time to scanning the disk
  • Text Editor
  • Shell Management
    • Byobu
    • Absolutely love how easy this makes running a complex multi-pane, multi-window set up. Makes my life a lot easier and more productive

Raidmart NEVER delivered

Please be extremely wary of the company https://www.raidmart.com/
My experience with them has been that I ordered a item from them, the money was taken immediately. Emails were sent confirming the item had been dispatched with a tracking link.

And that is ALL that ever happened. The item never arrived. The tracking link remains with the status “We’ve accepted your order, and we’re getting it ready. Come back to this page for updates on your shipment status.”
I’ve contacted the company numerous times, with no reply. I’ve followed their refund procedure, with no reply.

From my experience I believe this site is a scam.

Powershell Speaking Clock

After a phone system upgrade we were unable to get the speaking clock within the office, which started off a conversation about how much it costs to call, presently 50p per call in the UK.

A little conversation and it seemed like it would be fairly easy to knock up a system that provided the same service.
So with about 15 minutes I did 😀

https://github.com/mikedixson/PSpeakingClock/

Bordering On Obsession Released!

Over the summer I took part in a song writing game/mission with other songwriters on the web and one of the resultant songs that came out of the exercise was Bordering on Obsession, a song about lost loves, aspirations and self examination.
In the wasteland that is the gameified app dating scene obsessing over looks, both your own and other peoples, and casually swiping your way thru an endless sea of fish you’ll never catch is all the more a horrid obsession fueling activity.

You can stream or buy/download Bordering On Obsession now:
https://distrokid.com/hyperfollow/mikedixson/ffym

SOLVED: Windows does not have enough information to verify the certificate

Problem

When moving from one ADFS server to another I imported a full certificate chain and private key into Machine certs on the new Windows 2016.
The certificate displayed fine and chain is complete.

However viewing the certificate properties via ADFS the certificate information gives the error “Windows does not have enough information to verify the certificate”

Solution

Move the intermediate certificate to the Intermediate Certificate Authorities > Certificates store

It seems stupidly obvious in retrospect but Windows itself could view the cert fine, and the import was done via Machine Certificates so you’d think it would put things in the right place.