How To Disable Automatic Kernel Updates on Ubuntu like systems

10 Mar 2020 [ Blog  Kernel  SysAdmin  Linux  ]

First of all, I don’t recommend disabling Automatic Updates in general. It’s important to have system up to date, applications and kernel.

But there are several reasons why you might want to update your Kernel by hand, in time when you are ready to deal with problems. One most common reasons are performance graphics cards. It depends on manufacturer and model but sometimes it’s not very easy and stable to build graphics drivers, even when you are using DKMS.

If your computer is a tool for your job it’s very annoying to come to your PC in the morning and find it broken. You have to spent lot of time to fix it and it happends always when you don’t have time for this.

ESP8266 + InfluxDB + OLED DIsplay and DHT22

03 Dec 2017 [ Blog  ]

Basicly just put together from Examples.

Sending data tu InfluxDB was little bit tricky using HTTPClient and POST method for InfluxDB.


Command Line Tool for iRedMail (MySQL backend only)

13 Mar 2014 [ Blog  HowTos  Linux  Python  SysAdmin  ]


if anyone is interested in  open source mail server solution iRedMail and use MySQL as backend should now use my small cli script. Script has limited functions but it’s perfect for things like importing new domains or creating many email accounts.

Script is opensource and use some functions from original iredadmin web management. So you need iredadmin installed, which is default option.

iRedMail CLI Tool on Github

HowTo use Grub rescue mode

07 Jun 2013 [ Blog  HowTos  Kernel  Linux  SysAdmin  ]

Sometimes when you upgrade or migrate your linux from one disk to another, boot should hang out on line  “grub rescue>“,

what now ?

BASH GIT prompt

28 Nov 2012 [ Bash  Blog  Linux  ]

I’d like to introduce you my bash shell which can handle GIT information.

More information and sources are hosted on Github.

Automatic server audit for RackTables project

02 Nov 2012 [ Blog  Linux  Python  ]

First I’d like to introduce one very nice project called RackTables. It’s management system for DataCenters or rack rooms. I test many project like this but this one fits best for our needs. With this system you can document your network and infrastructure. Datacenters, rooms, rack rows, servers and their attributes, ipv4/ipv6 ranges, virtual resources, etc.

I work as System Specialist, many times it’s too much work and I forgot to document some changes which I made on server or infrastructure. When number of servers grows to hundreds this is a really big problem you must handle. Important is also to know, what was the change, not only actual state. So you must create log of changes.

I have created one small script which discover physical or virtual server and insert or update information into racktables database and ! it create LOG in RackTables. You see what was the previous state and when this change was made.

Script can handle various system and HW infromation and what is perfect, it do it automatically without any interaction.