The command at always outputs “Warning: commands will be executed using /bin/sh” in Rocky Linux 8
by Danila Vershinin, August 8, 2021
How to fix the command `at` outputs as follow: ~~~ # /usr/bin/at now < < < job.sh 20210521132925161641804289383 8469308861616420210521132925 warning: commands will be executed using /bin/sh job 13 at mon may 24 10:36:00 2021 ~~~
Read More...How to extract/unpack/uncompress the contents of the initramfs boot image on CentOS 7,8 ?
by Danila Vershinin, August 7, 2021
How to fix how to extract/unpack/uncompress the contents of the initramfs image on centos 7 and rocky linux 8?
Read More...How to list the number of packages in a repository using dnf repolist
by Danila Vershinin, August 6, 2021
How to fix in centos 7, `yum repolist` displays the number of packages in a repository.- on some rocky linux 8 instances, `yum repolist` or `dnf repolist` does not display the number of packages in a repository.
Read More...Rocky Linux 8: NFSv4 + fscache always writes to cache but never reads back from the cache
by Danila Vershinin, August 5, 2021
How to fix an nfsv4 mount with fscache enabled never reads back from the cache
Read More...[FIPS] ssh to RHEL6 server fails with message “ssh_dispatch_run_fatal: Connection to XXX port 22: invalid argument”
by Danila Vershinin, August 4, 2021
How to fix on a rocky linux 8 system with fips enabled, connecting to a rhel6 system fails, `ssh-v` displays the following message ~~~ […] debug1: ssh2_msg_kex_dh_gex_request(2048 <8192 <8192) sent debug1: got ssh2_msg_kex_dh_gex_group ssh_dispatch_run_fatal: connection to xxx port 22: invalid argument ~~~
Read More...How can we handle OSPF or other routing protocols in Rocky Linux 8?
by Danila Vershinin, August 3, 2021
How to fix was quagga removed from rocky linux 8 repos? how can we implement ospf in rocky linux 8?
Read More...How to create Rocky Linux 8 image which supports UEFI and legacy bios mode both.
by Danila Vershinin, August 2, 2021
How to fix how to create an rocky linux 8 image which supports both uefi and legacy bios mode.- i created an rocky linux 8 image in legacy bios mode hypervisor and i want it to be used in uefi mode hypervisor without modification.
Read More...How do I limit the usage of podman on Rocky Linux 8 to specific users / groups?
by Danila Vershinin, July 26, 2021
How to limit the users/groups who are able to use podman.
Read More...Choosing your RHEL 8 clone after the death of CentOS
by Danila Vershinin, July 24, 2021
As CentOS is no longer an RHEL clone, companies seek another free clone of RHEL. What will it be? AlmaLinux, Rocky Linux, or Oracle Linux? We review these choices and give a recommendation.
Read More...NGINX: putting multiple services on the same port
by Danila Vershinin, June 21, 2021
Recent versions of NGINX introduce the TLS pre-read capabilities, which allow it to see which TLS protocols are supported by the client, the requested SNI server name, and the ALPN protocol of request. All this information, known before the request is routed by NGINX to the upstream servers, makes it possible to conditionally route requests […]
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