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Linux Raid mdadm md0
Linux Raid This blog post is created as a mental note for future reference Linux Raid is the de-facto way for decades in the linux-world on how to create and use a software raid. RAID stands for:...
View ArticleThunderbird Enigmail
A Beginner’s Guide on How to use Thunderbird with Enigmail (Gpg4win) with their gmail account in 10 minutes on a windows machine Thunderbird Enigmail - Gmail, Windows from vimeouser on Vimeo. Tag(s):...
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enlarge your disk image aka windows extend volume
A visual guide on how to enlarge your windows disk image aka windows extend volume I have a windows 10 qemu-kvm virtual machine for business purposes. Every now and then, I have to resize it’s disk...
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Elasticsearch, Logstash, Kibana or ELK Crash Course 101
Elasticsearch, Logstash, Kibana or ELK Crash Course 101 Prologue aka Disclaimer This blog post is the outcome of a Hackerspace Event:: Logstash Intro Course that happened a few days ago. I prefer doing...
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FreshRSS Installation HowTo
Google Reader was -of general acceptance- the best RSS feed reader. Yahoo had it’s own “perfect” project to parse feeds: Yahoo! Pipes What did both projects have in common? They both were cloud...
View ArticleUse a different email address for every online account
Reading through “Smart Girl’s Guide to Privacy - Practical Tips for Staying Safe Online by Violet Blue” (totally recommend it), there is a great tip in the first few pages: - Use different email...
View ArticleUnknown User dovecot edition
The last couple months, I get over 400 unknown user errors on my imap (dovecot) server. FYI this is the report: dovecot: auth: ldap(aaaaaa,193.189.117.147): unknown user: dovecot: auth:...
View Articledmarc
Domain-based Message Authentication, Reporting and Conformance What is dmarc in a nutshell: An authentication Protocol that combines SPF & DKIM to reduce spoofed emails. Depends on DNS so DANE...
View ArticleLets Encrypt Client: certbot on Centos 6.8
Let’s Encrypt client: certbot is been written in python and as it’s predecessor needs at least Python 2.7. But (still) in CentOS series 6 (currently 6.8) there is no natively support for python27. So I...
View Articlewallabag upgrade notes 2.0.x
These are my personal notes on upgrading wallabag to it’s latest version (2.0.8): Create a backup # cd /var/www/html/ # mv wallabag wallabag_bak Download latest version # wget -c...
View ArticleDocker Notes
Personal Notes on this blog post. [work in progress] Why ? Γιατί docker ? To docker είναι ένα management εργαλείο για διαχείριση containers. Εάν κι αρχικά βασίστηκε σε lxc, πλέον είναι αυτοτελές....
View Articlevagrant docker ansible
Recently, I had the opportunity to see a presentation on the subject by Alexandros Kosiaris. I was never fan of vagrant (or even virtualbox) but I gave it a try and below are my personal notes on the...
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How to dockerize a live system
I need to run some ansible playbooks to a running (live) machine. But, of-course, I cant use a production server for testing purposes !! So here comes docker! I have ssh access from my docker-server to...
View ArticleOpen compressed file with gzip zcat perl php lua python
I have a compressed file of: 250.000.000 lines Compressed the file size is: 671M Uncompressed, it's: 6,5G Need to extract a plethora of things and verify some others. I dont want to use bash but...
View ArticleTools I use daily
post inspired from: https://kushaldas.in/posts/tools-i-use-daily.html https://www.scrye.com/wordpress/nirik/2017/01/05/tools-i-use-daily/ Operating System I use Archlinux as my primary Operating...
View Articleffmpeg video from images
ffmpeg is an amazing piece of software. Today I had to create a small video of a few Print-Screens (Screenshots) and this is how I did it: I’ve renamed all my screenshot png files from a datetime...
View ArticlePHP Recursive Directory File Listing
Iterators In recent versions of PHP, there is an iterator that you can use for recursively go through a directory. The name of this iterator is RecursiveDirectoryIterator and below is a simple test...
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upgrading baikal - contact calendar server
Baikal Almost a year ago, I wrote an article on how to install & use your personal Contact and Calendar Server & Android Client: Baïkal - CalDAV & CardDAV server So, here are my personal...
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free-as-in-freedom Google Apps on Fairphone Android
Fairphone FP1U I have this phone for more than 3,5 years running on Android v4.2 ! Gapps I dont have them, I dont even have a google account. Although fairphone comes with an extra GApps package zip, I...
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