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The default selinux configuration file is in /etc/selinux/config per man 8 selinux. In Appendix D of the RHEL 6 Deployment Guide (couldn't find in RHEL 7 doc), they mention that /etc/sysconfig is a symbolic link to /etc/selinux/config: The /etc/sysconfig/selinux file contains the basic configuration options for SELinux. It is a symbolic link to /etc/selinux/...


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You likely need to lower your system's crypto policy to LEGACY: update-crypto-policies --set LEGACY Consider creating your own policy to better match your environment. Update: https://access.redhat.com/solutions/5473501 What does curl -v https://subscription.rhsm.redhat.com/subscription/ --cacert /etc/rhsm/ca/redhat-uep.pem yield? If your org does TLS ...


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Ok after some researches i found out that RHEL repos (within /etc/yum.repos.d/) have proxy configured in every repo files. (maybe due to proxy-wide configuration ? i don't know...) In my case : i have to disable http_proxy & https_proxy in /etc/environment i let proxy configured into every repos configuration files. Then run sudo dnf update and sudo ...


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A technique that can be used is to customize the bootloader configuration based on the booting system's MAC address. The bootloader configuration can provide different default options to allow different behavior without any interaction. Three common PXE bootloaders, PXELinux, Grub, and iPXE can all provide configuration based on MAC address. They each have ...


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As your use-case is pretty custom and your needs might change a in the future, why don't you do something like the following... create a new systemd timer (e.g. failover-manager) on both machines that runs once per minute. The systemd timer will start an associated one-shot systemd service at regular intervals. That one-shot systemd service can just run a ...


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according to man 5 crontab on ubuntu. Note: The day of a command's execution can be specified by two fields — day of month, and day of week. If both fields are restricted (i.e., don't start with *), the command will be run when either field matches the current time. Please, do check your local crontab man page.


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LVM is just the way you define in /etc/lvm/lvm.conf. Set locking_type=1 and lvm2_lvmetad=0 1st one locks the handle on only one node. 2nd ensures lvm2's performance enhancement using cache disabled. Also systemctl disable lvm2_lvmetad to ensure. That's it. Now your LVM is HA-LVM


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