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Special Forums Windows & DOS: Issues & Discussions Home Questions Tags Users Unanswered Windows 2016 DNS server returns SERVFAIL for non-existing doma Post 303043613 by vbe on Sunday 2nd of February 2020 06:03:25 AM
Old 02-02-2020
Quire right, only many big enterprises use MS... for the active directory, and while at it let MS... rule the DNS also for "security" purpose with MS proxies...
This leads to many fancy bugs when there are misunderstandings between Windows standards and Unix standards...
Is this yet another case?
 

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unbound(8)							   unbound 1.5.1							unbound(8)

NAME
unbound - Unbound DNS validating resolver 1.5.1. SYNOPSIS
unbound [-h] [-d] [-v] [-c cfgfile] DESCRIPTION
Unbound is a caching DNS resolver. It uses a built in list of authoritative nameservers for the root zone (.), the so called root hints. On receiving a DNS query it will ask the root nameservers for an answer and will in almost all cases receive a delegation to a top level domain (TLD) authoritative nameserver. It will then ask that nameserver for an answer. It will recursively continue until an answer is found or no answer is available (NXDO- MAIN). For performance and efficiency reasons that answer is cached for a certain time (the answer's time-to-live or TTL). A second query for the same name will then be answered from the cache. Unbound can also do DNSSEC validation. To use a locally running Unbound for resolving put nameserver 127.0.0.1 into resolv.conf(5). If authoritative DNS is needed as well using nsd(8), careful setup is required because authoritative nameservers and resolvers are using the same port number (53). The available options are: -h Show the version and commandline option help. -c cfgfile Set the config file with settings for unbound to read instead of reading the file at the default location, /var/unbound/unbound.conf. The syntax is described in unbound.conf(5). -d Debug flag: do not fork into the background, but stay attached to the console. This flag will also delay writing to the log file until the thread-spawn time, so that most config and setup errors appear on stderr. If given twice or more, logging does not switch to the log file or to syslog, but the log messages are printed to stderr all the time. -v Increase verbosity. If given multiple times, more information is logged. This is in addition to the verbosity (if any) from the config file. SEE ALSO
unbound.conf(5), unbound-checkconf(8), nsd(8). AUTHORS
Unbound developers are mentioned in the CREDITS file in the distribution. NLnet Labs Dec 8, 2014 unbound(8)
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