Life! (Page 3)

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

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

FreeBSD

Upgrade PostgreSQL 14.5 to 15.x on FreeBSD

New version of postgresql 15 database have arrived. I have updated the manual to newest possible upgraded version on 14 october 2022. Stop your postgresql database daemon on FreeBSD machine: service postgresql stop Create package containing your old version ( 14.5 ) binaries ( depends are you using postgresql14-contrib package, but command

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

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

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#

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

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

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/

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%

FreeBSD

Problems with transmission-daemon with IPv6 and some other popular issues

Remove IPv6 detection Current port version inside net-p2p/transmission-components must be extracted with command FLAVOR=daemon make extract then edit file work-daemon/transmission-4.0.5/libtransmission/net.cc searching for ipv6. Then just reinstall with FLAVOR=daemon make deinstall install clean The problem with net-p2p/transmission-daemon and IPv6 is that

FreeBSD

How to grow zfs on FreeBSD running inside VMWare

Live ZFS resizing inside VMWare should be possible, but there are several steps: First you should resize your virtual disk in VMWare configuration. Recomendation is all virtual disks to be similar size for best performance in VMWare. Then check what is disk configuration using: # gpart show => 34 629145526 da0

Cisco

How to serve multiple search domains from Cisco IOS DHCP server?

Source - https://www.perkin.org.uk/ [https://www.perkin.org.uk/posts/serving-multiple-dns-search-domains-in-ios-dhcp.html] The expected [code language="plain"]ip dhcp pool host.net.example.com option 119 ascii net.example.com,example.com[/code] doesn't work. So you need to encode search domains in

FreeBSD

MySQL command for finding all MyISAM databases, and convert them to innodb

FreeBSD

TCP Fast Open (TFO) on FreeBSD

TCP Fast Open (TFO) is an extension to speed up the opening of successive Transmission Control Protocol (TCP) connections between two endpoints. It works by using a TFO cookie (a TCP option), which is a cryptographic cookie stored on the client and set upon the initial connection with the server.

Telco

5G vs 4G

https://youtu.be/_B-otIZEGnQ

FreeBSD

How To Secure HAProxy with Let's Encrypt

Combine fullchain.pem and privkey.pem > DOMAIN='example.com' ; sudo -E bash -c 'cat /usr/local/etc/letsencrypt/live/$DOMAIN/fullchain.pem /usr/local/etc/letsencrypt/live/$DOMAIN/privkey.pem > /usr/local/etc/haproxy/$DOMAIN.pem' The first thing we want to add is