Not able to install “screen” package on Rocky Linux 8


by Danila Vershinin, September 2, 2021

How to fix not able to install the `screen` package on rocky linux 8

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Application whitelisting in RHEL


by Danila Vershinin, September 1, 2021

How to fix we are looking to apply an `application whitelisting` mechanism in rhel workstations, where users are allowed to run certain binaries, while running anything else is not allowed. for example, trusted applications, let’s say gedit, is allowed, while running applications/scripts that are not whitelisted will be rejected. `selinux` is a `behavioral whitelisting`, not sure if `application whitelisting` is feasible.- is there any mechanism to apply such thing in rhel? and products in the market you’re aware of that performs something similar?- restrict the execution of executable and script.- does application server whitelist or control executable and script executor such as `microsoft applocker`, cli setups to restrict the execution of executable and script to an approved set and authorised individuals?

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How to configure netconsole under Rocky Linux 8 ?


by Danila Vershinin, August 31, 2021

How to fix how to configure `netconsole` under rocky linux 8?

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How to install perl-Net-SNMP?


by Danila Vershinin, August 30, 2021

How to fix installation of `perl-net-snmp`.

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Not able to install “screen” package on Rocky Linux 8


by Danila Vershinin, August 29, 2021

How to fix not able to install the `screen` package on rocky linux 8

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How to share printers using Avahi and cups-browsed in CentOS 7.7


by Danila Vershinin, August 28, 2021

How to fix how can i use avahi and cups-browsed to share printers in centos 7.7 and rocky linux 8

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How to install perl-Net-SNMP?


by Danila Vershinin, August 27, 2021

How to fix installation of `perl-net-snmp`.

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How do I disable firewalld and use nftables instead ?


by Danila Vershinin, August 26, 2021

How to fix how do i disable `firewalld` and use `nftables` instead?- some `nftables` rules do not get processed when `firewalld` is enabled.

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Z guest running Rocky Linux 8 doesn’t boot latest kernel after updating the kernel


by Danila Vershinin, August 25, 2021

How to fix after updating the kernel, `zipl` doesnt’ boot the latest kernel

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How to filter log to a separate file


by Danila Vershinin, August 24, 2021

How to fix how to filter out the keyword as `xxx` or `yyy` from messages to another file such as /var/log/test.log

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