Assistant who is always at hand
Today we will create a simple telegram bot on python that can respond to our messages, interact with us, offering answer options in the form of buttons and process the result we selected by executing commands on the server. Work with Telegram Bot Api we will using the pyTelegramBotAPI (telebot) library written in Python. Create … Read more
I noticed that many people encounter difficulties if they need to work in several tabs. So I decided to write a short note on how to in puppeteer open link in new tab. The list of methods is not exhaustive, but all of them are easy to use. New tab to go to famous url … Read more
If you are having difficulty installing docker on CentOS 8, read this article. There was a need to build an image with the installation of dependencies for python. Dependencies are described in the requirements.txt file and must be pulled from the network. However, when building the image I received an error of the following form: … Read more
If we try to run py scripts or software that uses python in CentOS 8, we get one of the following errors: This is due to the fact that in CentOS 8, the python package is not installed by default. The system developers decided to leave the version choice and installation to us users. CentOS … Read more
Sometimes you need to add an alias on the interface. In CentOS 8 add second IP can be done in several ways. 1 ifconfig2 /etc/sysconfig/network-scripts/ Adding an alias with ifconfig To get started, let’s look at the available interfaces in the system using ifconfig: In the example, this is eth0. To add a second IP … Read more
Earlier we installed CentOS 8. But what if the disk size was not enough? Fortunately, this operating system uses LVM by default, and in this article we will use for example the CentOS 8 extend LVM partition. This procedure is practically no different from the actions in previous versions of this OS. Attention! Before you … Read more
Installing the CentOS 8 operating system itself was discussed earlier in this article. Docker on CentOS 8: installation error When trying to install Docker on Centos 8 from the official repository, I received the following error: The error is caused by the containerd.io dependency, which cannot be automatically installed from the repository. CentOS 8 install … Read more
On September 24, 2019, CentOS 8 was released, the first version of the system was marked 8.0-1905. In Centos 8 installation does not fundamentally differ from the installation in previous versions of the system, however, small differences still appeared. The article provides step-by-step installation instructions for Centos 8 with comments and screenshots. 1 Distributives2 Install … Read more
In the article Zabbix: how to increase the number of last issues in the dashboard, we already talked about how to change the maximum number of events in the Zabbix panel. However, starting with version 3.4, the dashboard was changed and widgets were added. Recent events have been replaced by the Problem widget. The constant … Read more
By default, the Zabbix dashboard in the “Last 20 issues” section has a limit of 20 issues. In practice, this is often lacking and only the latest issues are displayed in the dashboard , as evidenced by the inscription at the end of the list: 20 of 62 issues are shown. It is not possible … Read more
