Re: [tor-relays] What are the exact requirements for HSDir flag?

[Tim Wilson-Brown - teor <teor2345@xxxxxxxxx>]

On 1 Jan 2016, at 13:21, Dimitar Milkov <me@xxxxxxxxxxxxxx> wrote:

Hello, and Happy New Year!

I have a question regarding the HSDir flag.

According to dir-spec.txt :

"A router is a v2 hidden service directory if it stores and serves v2 hidden service descriptors, has the Stable and Fast flag, and the authority believes that it's been up for at least 96 hours (or the current value of MinUptimeHidServDirectoryV2)."

However, if you browse the consensuses, you will find a lot of relays that meet the requirements above, but doesn't have HSDir.
You will also notice that almost every relay with HSDir is also a conventional v2 directory mirror (e.g. with active DirPort).

Is there any non-documented requirement, like minimum bandwidth or something?

The "Fast" flag imposes a minimum bandwidth requirement.

The "Stable" flag imposes an uptime requirement.

Each authority does its own relay reachability testing, and so their views of the network may differ, as may their values for some of the other parameters used to vote for HSDirs.

Tim

Tim Wilson-Brown (teor)

teor2345 at gmail dot com
PGP 968F094B

teor at blah dot im
OTR CAD08081 9755866D 89E2A06F E3558B7F B5A9D14F

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