Life!

Slack integration

In previous year I have thinked many times that Facebook [https://facebook.com] and other social media places are not going into right direction. So I've started my own private Slack [https://slack.ostreff.info] instance in the internet. Everybody is welcome to join there! All blogs messages will appear

Personal

Economy 101 quick'n'simple explanation

MacOS

Find out which sleep mode your Mac uses

You should use Terminal to find out which sleep mode your Mac is currently set to use. Then you can use Terminal to change it to a different mode if you want to. pmset -g | grep hibernatemode Possible results are: hibernatemode 0 (standard sleep) hibernatemode 1 (hibernate mode, for pre-2005

Personal

Happy New 2022 Year!

QoS

Mobile QoS

FreeBSD

Automate NextCloud updates

Here is my script to automate NextCloud updates. They can be put into crontab in example: #!/bin/csh setenv nextcloud "/usr/local/www/nextcloud" pushd $nextcloud sudo -u www -D $nextcloud /usr/local/bin/php --define apc.enable_cli=1 updater/updater.phar --no-interaction sudo -u www -D $nextcloud /usr/

FreeBSD

Automate GHOST updates

Here are my scripts for automaticaly update my GHOST updates on FreeBSD. First i'm listing my rc.d script for starting it: #!/bin/sh # PROVIDE: ghost # REQUIRE: DAEMON SERVERS mysql postgresql slapd # KEYWORD: shutdown # # Add the following lines to /etc/rc.conf to enable powerdns: # # ghost_enable="YES" # PATH="/sbin:

Personal

Unbelievable

💡 JBIG2 doesn't have scripting capabilities, but when combined with a vulnerability, it does have the ability to emulate circuits of arbitrary logic gates operating on arbitrary memory. So why not just use that to build your own computer architecture and script that!? That's exactly what this exploit does. Using over

Personal

Merry Christmas!

MySQL

MySQL 8.0.27 upgrade failure

If after the upgrade the mysql doesn't start don't panic! In mysql8 mysql_upgrade command is dummy, and the database upgrades automatic on first restart. In my scenario I was upgrading from 8.0.26 to mysql8.0.27 and I see errors like bellow and the database won't start:

FreeBSD

Upgrade PostgreSQL 13.5 to 14.1 on FreeBSD

Stop your postgresql [https://www.postgresql.org] database daemon on FreeBSD [https://freebsd.org] machine: service postgresql stop Create package containing your old version ( 13.5 ) binaries ( depends are you using postgresql13-contrib package, but command will not fail if it is missing ) pkg create postgresql13-server postgresql13-contrib Uncompress them somewhere in

FreeBSD

Howto run and update ghost 4.x on node.js 17.x

It looks that there is big inconsistency in FreeBSD ports [https://www.freebsd.org/ports/] - related to python 3.10 [https://www.python.org] and node.js [https://nodejs.org/en/]. Currently only node.js 17.x can be build if you have such combination of programming languages on

MySQL

Ghost and sqlite3

After many problems and outages of my blog now It is clear for me that it is better to use mysql as database backend in Ghost CMS! It looks that with Node14 it doesn't work with sqlite3 database backend. Migration is easy - just take the latest backup *.json file

WEB

Matomo INFILE usage with MySQL8 and PHP8

It looks tricky to cheat matomo [https://matomo.org] INFILE usage when you use PHP8 [https://www.php.net/releases/8.0/en.php] and MySQL8 [https://www.mysql.com]. My quick hints are: 1. Did you have put in my.cnf file: secure-file-priv = //matomo/tmp/assets/ 2. Do you

Personal

Триумфът на стадния имунитет ...

Поредния анализ публикуван от Георги К. Маринов работещ в Department of Genetics, Stanford University, Stanford, California 94305, USA. Оригиналният текст е публикуван от г-н Маринов в Google Disk тук: 2021-06-05-herd-immunity.pdfGoogle Docs [https://drive.google.com/file/d/1riRoxXHBbUmEY0u-1ZhDm2Q4bnTc0NAB/view?fbclid=IwAR2ZN5LYXSybHQufyYi-Qc0j9ryVsduOS4kkdW6ghyDTXY-hXeiU1KXNmgg] Направил съм mirror на публикувания pdf на линкът

Personal

Локдаун за последно или до безкрай?

Поредният много силен материал от Георги К. Маринов [https://www.facebook.com/gkmarinov] работещ в Department of Genetics, Stanford University, Stanford, California 94305, USA 2021-03-18-ZeroCOVID.pdfGoogle Docs [https://drive.google.com/file/d/1eOHEejDD77sCWQk6nkazAejgi2fbhjWQ/view]И локално копие: 2021-03-18-ZeroCOVID.pdfNextcloud - a safe home for all your dataNextcloud [https://cloud.

Cisco

Cisco Live 2021

Cisco Live 2021 | Digital Networking EventIn 2021, Cisco’s premier education and training event for IT professionals is going global. Join us on March 31 - April 1, 2021.Cisco [https://www.ciscolive.com/emea.html]

FreeBSD

Installing [matrix]-bridges on FreeBSD

Here is my example using mautrix-facebook [https://github.com/tulir/mautrix-facebook] as example‌ $ mkdir bridges/facebook $ cd bridges/facebook $ virtualenv -p /usr/local/bin/python3.7 . $ bash $ source bin/activate $ pip install --global-option=build_ext --global-option="-I/usr/local/include" --upgrade git+https://github.com/tulir/mautrix-facebook.git#egg=mautrix-facebook[

FreeBSD

ELF binary type "0" not known.

Today I've invested some time to bring back to life my personal Cloud storage [https://cloud.ostreff.info/]. The reason for his death was upgrade to PHP8 [https://www.php.net/releases/8.0/en.php]. So after some research I've found that at this moment the only compatible to

FreeBSD

Build graphics/pecl-imagick PHP 8 compatible extension

The version in the ports tree is not working - it shows some errors when installed. But the source on the master brach of the Imagick repo [https://github.com/Imagick/imagick] seems to work. Here's how you can use it. 1. Clone the repo somewhere on disk 2. Execute

FreeBSD

How to build and install Mattermost plugins on FreeBSD

I was unpleasantly surprised to find that all plugins published on Mattermost plugin marketplace [https://integrations.mattermost.com] are not working on installed server on FreeBSD. They all are failing to start - it doesn't matter did you enabled linux64 emulation [https://docs.freebsd.org/en/books/handbook/linuxemu/] inside

HAProxy

How to made Websocket traffic to go via HAProxy

The solution was simple: Tell HAProxy to tag Websocket traffic, and set up a separate but otherwise identical backend for this specific use case. One of typical applications which is using Websocket traffic is Slack [https://slack.com/]. An excelent opensource alternative of it named Mattermost [https://mattermost.com]. The

QoS Featured

IP QoS

Excelent arcticle [http://www.netcontractor.pl/blog/?p=1161] explaining IPv4 QoS QoS Values

Telco

How to set DSCP/COS in FreeBSD and use it in Telco environment

Preserving QoS [https://en.wikipedia.org/wiki/Quality_of_service] parameters in Telco environment, where part of the equipment is following 3gpp [https://www.3gpp.org] rules and other part is followin ietf [https://www.ietf.org] rfcs rules is really chalenging. And of course there is allways need to

DNS

Using Hurricane Electric free DNS service to speedup your DNS service

So apart from setting ns[2345].he.net as your DNS servers at your registrar and adding a slave at http://dns.he.net [http://t.umblr.com/redirect?z=http%3A%2F%2Fdns.he.net&t=ODAzYzgyYzgyYjc4Nzc3MWYzMGU5ODcxZmU0M2Q2YzA2ZDc5MTQ3NCxjRmFOU21PWA%3D%3D&b=t%3AyC21hTB-EApArzTh4CNbnA&p=http%3A%2F%2Fstuff.baturin.org%