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Consistently use /dev/urandom instead of /dev/random in scripts and docs #81

merged 1 commit into from Sep 20, 2019


@wcawijngaards wcawijngaards merged commit e1e71ea into NLnetLabs:master Sep 20, 2019
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wcawijngaards added a commit that referenced this pull request Sep 20, 2019
- Merge #81 from Maryse47: Consistently use /dev/urandom instead
  of /dev/random in scripts and docs.

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wcawijngaards commented Sep 20, 2019

Yes that changed in the implementation where open of dev happened at first in the util/random code, but then moved to the compat with contributed code because the random generators changed in libc('s in BSD and Linux), I guess this is where this could have changed. Having a good supply is important because you do not want the stream of DNS replies cut short by a wait for randomness. Which would be used for generating the 16-bit ID numbers in DNS packets. Hence urandom, by the way. So the changes you suggest are an improvement (in the comments around the code). Thanks! Merged.

@Maryse47 Maryse47 deleted the Maryse47:urandom branch Sep 20, 2019
jedisct1 added a commit to jedisct1/unbound that referenced this pull request Sep 21, 2019
* nlnet/master: (22 commits)
  Changelog entry for NLnetLabs#83 - Merge NLnetLabs#83 from Maryse47: contrib/ do not fork   into the background. do not fork into the background
  Changelog entry for NLnetLabs#81. - Merge NLnetLabs#81 from Maryse47: Consistently use /dev/urandom instead   of /dev/random in scripts and docs.
  (Changelog entry for NLnetLabs#82). - Merge NLnetLabs#82 from hardfalcon: Downgrade CAP_NET_ADMIN to CAP_NET_RAW   in unbound.service.
  Downgrade CAP_NET_ADMIN to CAP_NET_RAW in unbound.service
  Consistently use /dev/urandom instead of /dev/random in scripts and docs
  - Merge NLnetLabs#80 from stasic: Improve wording in man page. (Changelog entry for merge)
  Improve wording in man page
  - Fix wrong response ttl for prepended short CNAME ttls, this would   create a wrong zero_ttl response count with serve-expired enabled.
  - Fix for oss-fuzz build warning.
  - Fix fix for NLnetLabs#78 to also free service callback struct.
  - oss-fuzz badge on
  - Merge pull request NLnetLabs#76 from Maryse47: Improvements and fixes for   systemd unbound.service. (Changelog note for merge of NLnetLabs#76).
  - Fix NLnetLabs#78: Memory leak in outside_network.c.
  Improvements and fixes for systemd unbound.service
  - Use explicit bzero for wiping clear buffer of hash in cachedb,   reported by Eric Sesterhenn from X41 D-Sec.
  - Fix NLnetLabs#72: configure --with-syslog-facility=LOCAL0-7 with default   LOG_DAEMON (as before) can set the syslog facility that the server   uses to log messages.
  - Fix NLnetLabs#71: fix openssl error squelch commit compilation error.
  - squelch DNS over TLS errors 'ssl handshake failed crypto error'   on low verbosity, they show on verbosity 3 (query details), because   there is a high volume and the operator cannot do anything for the   remote failure.  Specifically filters the high volume errors.
  - updated Makefile dependencies.
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