EPEL powered by Cloudflare CDN. Fix your sanity

by Danila Vershinin, September 9, 2021

A simple recipe against a disaster. Here’s to make EPEL repository faster, by leveraging Cloudflare CDN


Why to use NFS storage with podman on Rocky Linux 8 ?

by Danila Vershinin,

How to fix why to use nfs storage with podman on rocky linux 8?


Does the java process have SELinux policy defined in RHEL?

by Danila Vershinin, September 8, 2021

How to fix does the java process have a selinux policy defined in rhel?- does red hat provide a custom selinux policy for java?


Yum displays system not registered warning in RHUI based clients

by Danila Vershinin, September 7, 2021

How to fix yum update in rhui based clients shows system not registered.- how to remove registration warning in rhui systems?- disable subscription manager repositories in rhui based systems.- the yum command displays warning message while listing repositories in on-demand cloud instances which are fetching updates from rhui server. ~~~ # yum repolist updating subscription management repositories. unable to read consumer identity this system is not registered to red hat subscription management. you can use subscription-manager to register. repo id repo name rhui-rhel-8-for-x86_64-appstream-rhui-rpms rocky linux 8 for x86_64- appstream from rhui (rpms) rhui-rhel-8-for-x86_64-baseos-rhui-rpms rocky linux 8 for x86_64- baseos from rhui (rpms) ~~~


Teaming LACP slave not getting added – Loop callback failed with: Cannot allocate memory

by Danila Vershinin, September 5, 2021

How to fix i’ve configured 2 team lacp interfaces both consisting of 2 ports using networkmanager. after reboot, every interface is up with only 1 port in it.


Problem with printed fonts after upgrade to CentOS 7.7 or Rocky Linux 8.0

by Danila Vershinin, September 4, 2021

How to fix after upgrading from rhel 6 to centos 7 we have experienced problems with printing, it appears to have affected the font sizes and potentially also the margins. printers are hp printers with a postscript printer driver in place which hasn’t been modified as part of the upgrade.


cloud-init fails to resize partition: growpart doesn’t work when LANG is not en_US

by Danila Vershinin, September 3, 2021

How to fix growpart doesn’t work as intended when lang is customized- cloud-init doesn’t resize root partition when lang is not en_us- rhel cloud images with non-default locales are failing to resize root partition


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


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?


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?