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Tor 0.3.2.8-rc is released

原题:Tor 0.3.2.8-rc is released, with important updates for relays8ix免费翻墙

Tor 0.3.2.8-rc fixes a pair of bugs in the KIST and KISTLite schedulers that had led servers under heavy load to overload their outgoing connections. All relay operators running earlier 0.3.2.x versions should upgrade. This version also includes a mitigation for over-full DESTROY queues leading to out-of-memory conditions: if it works, we will soon backport it to earlier release series.8ix免费翻墙

This is the second release candidate in the 0.3.2 series. If we find no new bugs or regression here, then the first stable 0.3.2 release will be nearly identical to this.8ix免费翻墙

You can download the source from the usual place on the website. Binary packages should be available soon. There probably won’t be a Tor Browser release for this one; this issues fixed here are mainly (but not exclusively) relevant to relays.8ix免费翻墙
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Changes in version 0.3.2.8-rc – 2017-12-21

  • Major bugfixes (KIST, scheduler):
    • The KIST scheduler did not correctly account for data already enqueued in each connection’s send socket buffer, particularly in cases when the TCP/IP congestion window was reduced between scheduler calls. This situation lead to excessive per-connection buffering in the kernel, and a potential memory DoS. Fixes bug 24665; bugfix on 0.3.2.1-alpha.
  • Minor features (geoip):
    • Update geoip and geoip6 to the December 6 2017 Maxmind GeoLite2 Country database.

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  • Minor bugfixes (hidden service v3):
    • Bump hsdir_spread_store parameter from 3 to 4 in order to increase the probability of reaching a service for a client missing microdescriptors. Fixes bug 24425; bugfix on 0.3.2.1-alpha.
  • Minor bugfixes (memory usage):
    • When queuing DESTROY cells on a channel, only queue the circuit-id and reason fields: not the entire 514-byte cell. This fix should help mitigate any bugs or attacks that fill up these queues, and free more RAM for other uses. Fixes bug 24666; bugfix on 0.2.5.1-alpha.
  • Minor bugfixes (scheduler, KIST):
    • Use a sane write limit for KISTLite when writing onto a connection buffer instead of using INT_MAX and shoving as much as it can. Because the OOM handler cleans up circuit queues, we are better off at keeping them in that queue instead of the connection’s buffer. Fixes bug 24671; bugfix on 0.3.2.1-alpha.

来自https://blog.torproject.org/tor-0328-rc-released-important-updates-relays8ix免费翻墙

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