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Adjust max-recursion-queries to fix alternating rdns status (#1876)

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Hilko 2020-12-25 23:19:16 +01:00 committed by GitHub
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commit 003e8b7bb1
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7
setup/system.sh
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@ -320,6 +320,9 @@ fi #NODOC
# name server, on IPV6.
# * The listen-on directive in named.conf.options restricts `bind9` to
# binding to the loopback interface instead of all interfaces.
# * The max-recursion-queries directive increases the maximum number of iterative queries.
# If more queries than specified are sent, bind9 returns SERVFAIL. After flushing the cache during system checks,
# we ran into the limit thus we are increasing it from 75 (default value) to 100.
apt_install bind9
tools/editconf.py /etc/default/bind9 \
"OPTIONS=\"-u bind -4\""
@ -327,6 +330,10 @@ if ! grep -q "listen-on " /etc/bind/named.conf.options; then
# Add a listen-on directive if it doesn't exist inside the options block.
sed -i "s/^}/\n\tlisten-on { 127.0.0.1; };\n}/" /etc/bind/named.conf.options
fi
if ! grep -q "max-recursion-queries " /etc/bind/named.conf.options; then
# Add a max-recursion-queries directive if it doesn't exist inside the options block.
sed -i "s/^}/\n\tmax-recursion-queries 100;\n}/" /etc/bind/named.conf.options
fi
# First we'll disable systemd-resolved's management of resolv.conf and its stub server.
# Breaking the symlink to /run/systemd/resolve/stub-resolv.conf means