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* Production quality rather than pre-production hardware
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* Support for multiple drives (so we can do RAID) although this can
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be waived for disposable servers like build boxes
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* Hosting for the machine: we do not run our own data centers or rack,
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so it would be preferable if you can also find a hosting location
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for the machine, ideally dual-stack (IPv4 and IPv6) and gigabit or
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greater
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* Hosting for the machine: we do not run our own data centers or
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rack, so it would be preferable if you can also find a hosting
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location for the machine, see the [hosting requirements](#hosting-requirements) below
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for details
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## To avoid
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* hardware RAID, unless supported with open drivers in the mainline
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Linux kernel and userland utilities
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# Hosting requirements
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Those are requirements that apply to actual physical / virtual hosting
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of machines.
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## Must have
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* 100-400W per unit density, depending on workload
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* 1-10gbit, unmetered
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* dual stack (IPv4 and IPv6)
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* IPv4 address space (at least one per unit, typically 4-8 per unit)
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* out of band access (IPMI or serial)
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* rescue systems (e.g. PXE booting)
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* remote hands SLA ("how long to replace a broken hard drive?")
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## Nice to have
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* "clean" IP addresses (for mail delivery, etc)
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* complete /24 IPv4, donated to the Tor project
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* private VLANs with local network
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* BGP announcement capabilities
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* not in europe or northern america
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* free, or ~ 150$/unit
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# Virtual machines requirements
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## Must have
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