sysadmin
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sysadmin [2020-05-24 17:17] – [Technical Policies] tim | sysadmin [2020-05-25 17:37] – removed tim | ||
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- | ====== System Administration ====== | ||
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- | This page will describe how we organise ourselves to operate the lab's network and server infrastructure. | ||
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- | ===== Categories ===== | ||
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- | We separate administration into categories based on the level of security required. This is so that we can make a trade-off between including more interested members vs restricting access to sensitive data or highly critical systems. | ||
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- | | Internet of Things | Lights, sound, automation | ||
- | | General Systems | ||
- | | Network | ||
- | | Personal Data | Members database, home directories, | ||
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- | ===== Network ===== | ||
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- | https:// | ||
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- | There is a netadmin unix group which provides access to network-infrastructure VMs and webapps. | ||
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- | There is a network password for router and switch access. | ||
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- | ===== Sysadmin ===== | ||
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- | https:// | ||
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- | There is a sysadmin unix group which provides access to most Linux servers. | ||
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- | There is a standard root password for most Linux servers, though it is likely to be disabled over SSH in favour of SSH keys. | ||
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- | ===== Restricted Access ===== | ||
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- | These are the currently restricted services: | ||
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- | * ehl-vm-access: | ||
- | * Access control for doors, tools and lockers. | ||
- | * Hosted on magnesium. | ||
- | * Available to sysadmin unix group. | ||
- | * ehl-vm-admin: | ||
- | * Members database | ||
- | * Hosted on magnesium. | ||
- | * Available to sysadmin unix group. | ||
- | * ehl-vm-audit: | ||
- | * Netflow, syslog, mqtt logs. 30 day retention. | ||
- | * Hosted on Tim's server. | ||
- | * Available to Tim. | ||
- | * magnesium: | ||
- | * Bare-metal VM server. | ||
- | * Contains VMs with personal data, and VM that belong to individual members. | ||
- | * Available to sysadmin unix group. | ||
- | * ganymede, shell server, radon: | ||
- | * Home directories. | ||
- | * Nextcloud storage. | ||
- | * Hosted on magnesium. | ||
- | * Available to sysadmin unix group. | ||
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- | Tim's commentary: I would like to restructure these services so that the sysadmin team can be more inclusive. The members database will be moved to an external VM. I would like to adjust the expectations of privacy for home directories and members VMs so that more people can administrate the underlying host (magnesium). | ||
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- | ===== Conduct ===== | ||
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- | What behaviour do we expect from members with access privileges? | ||
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- | * Respect personal data by only accessing it when legally or technically necessary, or when requested by the owner. | ||
- | * Act in good faith. | ||
- | * Co-operate with other group members. Don't change the technology choices or methods without discussing first. | ||
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- | Should we adopt an existing code of conduct? https:// | ||
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- | ===== Technical Policies ===== | ||
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- | Server naming: | ||
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- | * Bare-metal servers are named after chemical elements. | ||
- | * VMs are named functionally, | ||
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- | Configuration management: | ||
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- | * There is an [[https:// | ||
- | * Use Docker for applications unless they are complex and require a dedicated host. | ||
sysadmin.txt · Last modified: 2022-04-22 13:47 by tim