A Review of the Privacy Centric Note Taking App – Standard Notes

Published: May 27, 2023 / Updated: May 28, 2023 Akhil Jalagam Review

As we increasingly move towards a digital world, note-taking apps have become a daily essential for many of us. From jotting down quick thoughts to organizing complex information, these apps serve a multitude of purposes. Today, I want to delve into one particular note-taking app that has been gaining attention … Read more

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How to view .HEIC image thumbnails in Void Linux thunar/nautilus/pcmanfm…file managers

Published: July 30, 2022 / Updated: July 30, 2022 Akhil Jalagam Howto, Linux

Install these packages and restart file manager

sudo xbps-install libheif libheif-tools

Note: HEIC thumbnails in pcmanfm didn’t work for me.

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… Read more

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void linux: recover from grub, kernel panic using live OS

Published: July 18, 2022 / Updated: August 5, 2022 Akhil Jalagam Uncategorized 
# mount & chroot to void
cryptsetup open /dev/nvme0n1p2 root
mount /dev/mapper/root /mnt
mount /dev/nvme0n1p1 /mnt/boot
mount --rbind /sys /mnt/sys && mount --make-rslave /mnt/sys
mount --rbind /dev /mnt/dev && mount --make-rslave /mnt/dev
mount --rbind /proc /mnt/proc && mount --make-rslave /mnt/proc
chroot /mnt /bin/bash

# regenerate initramfs and grub config
VERSION=5.18.16_1
… Read more

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How to add bulk IP addresses to DigitalOcean firewall ?

Published: July 15, 2020 / Updated: January 11, 2021 Akhil Jalagam Beginners, Cloud Computing, DevOps, Howto, Linux, Networking
digitalocean

Trying to add bulk IP’s in DigitalOcean firewall? You are in the right place.

DigitalOcean cloud control panel UI doesn’t allow you to paste in multiple IP Addresses at once. That’s a good idea for a UI improvement.

In the meantime you can definitely do it via the API…… Read more

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How to renew the SSL certificates for dovecot and postfix

Published: April 10, 2020 / Updated: April 10, 2020 Akhil Jalagam Beginners, DevOps, Howto, Linux, Security

Make a backup of the existing SSL key and certificate file

cd /etc/pki/dovecot
cp -a certs/dovecot.pem certs/dovecot.pem.old
cp -a private/dovecot.pem private/dovecot.pem.old

Create the new SSL certificate for two years:

openssl genrsa -out private/dovecot.pem 1024
openssl req -new -x509 -key private/dovecot.pem -out certs/dovecot.pem -days 730

Restart Dovecot and Postfix

sudo systemctl
… Read more

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How to display brightness level in i3status bar

Published: November 26, 2019 / Updated: July 21, 2021 Akhil Jalagam Beginners, Howto, Linux

I’ve been using Linux for a long time, but I was never entirely happy with the desktop environment options available. Until last year, Xfce was the closest to what I consider a good compromise between features and performance. Then I found i3, an amazing piece of software that changed … Read more

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What is DevOps?

Published: November 2, 2019 / Updated: November 2, 2019 Akhil Jalagam DevOps
devops-world

1. Definition from Wikipedia:

DevOps (a clipped compound of “development” and “operations”) is a set of software development practices[failed verification] that combines software development (Dev) with information technology operations (Ops) to shorten the systems development life cycle while delivering features, fixes, and updates frequently in close alignment with business objectives.… Read more

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How to auto login in MySQL from a shell?

Published: November 2, 2019 / Updated: April 20, 2020 Akhil Jalagam Beginners, Database, DevOps, Howto

When you run MySQL commands MySQL, mysqlcheck, mysqdump and psql, psqldump, etc; they will pick username & password from this file if you do not provide them as argument (-u and -p). It can save you time.

Of course, if you specify username and password explicitly as part of the … Read more

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Still Confused With Mail Ports?

Published: October 26, 2019 / Updated: April 20, 2020 Akhil Jalagam DevOps, Linux, Networking

This article explains the most commonly used Email protocols on the internet – POP3, IMAP, and SMTP

  • SMTP 25, 2525
  • SMTP-SSL/TLS 587,465
  • IMAP 143
  • IMAP-SSL/TLS 993
  • POP3 110
  • POP3-SSL/TLS 995

587 vs. 465
These port assignments are specified by the Internet Assigned Numbers Authority (IANA):

Port 587: [SMTP] Message … Read more

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