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tutorial:adm:server_os_updates [2020/01/13 12:14] fiserp [Things to consider] |
tutorial:adm:server_os_updates [2020/02/17 14:34] fiserp [Performing the OS update] |
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| ====== Server updates - OS updates ====== | ====== Server updates - OS updates ====== | ||
| - | <note warning> | ||
| To ensure secure operation, servers in the infrastructure have to be kept up to date. This tutorial addresses the need for OS updates of the IdM server and gives basic guidelines and recommendations. | To ensure secure operation, servers in the infrastructure have to be kept up to date. This tutorial addresses the need for OS updates of the IdM server and gives basic guidelines and recommendations. | ||
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| - Make backup of ``/boot``, ``/etc``, list of processes ``ps -ef`` and list of network services ``netstat -tulnp`` (or ``ss -tulnp``). Those dumps will help you check if all the services started. You can also recover some settings from backups in case something goes wrong (in a minor way) - you will not need to roll back whole snapshot. | - Make backup of ``/boot``, ``/etc``, list of processes ``ps -ef`` and list of network services ``netstat -tulnp`` (or ``ss -tulnp``). Those dumps will help you check if all the services started. You can also recover some settings from backups in case something goes wrong (in a minor way) - you will not need to roll back whole snapshot. | ||
| - Perform the update (e.g. ``yum update``). | - Perform the update (e.g. ``yum update``). | ||
| + | - YMMV depending on the packages being updated. Also when upgrading PostgreSQL, there are additional steps you have to perform. | ||
| - Restart affected services or reboot the whole machine if necessary. | - Restart affected services or reboot the whole machine if necessary. | ||
| - When the machine is up, check ``dmesg`` and ``/ | - When the machine is up, check ``dmesg`` and ``/ | ||