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docs: fix DNS lookup delay from IPv6 resolver stall #6033

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docs: fix DNS lookup delay from IPv6 resolver stall #6033

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74ea0bb
docs: fix DNS lookup delay from IPv6 resolver stall
RyanJHamby Jul 14, 2026
f16275e
docs: shorten resolver comment per review feedback
RyanJHamby Jul 18, 2026
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4 changes: 4 additions & 0 deletions docs/getting-started.md
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Expand Up @@ -322,6 +322,10 @@ ssh -i $KEY_NAME root@172.16.0.2 "ip route add default via 172.16.0.1 dev eth0"
# Setup DNS resolution in the guest
ssh -i $KEY_NAME root@172.16.0.2 "echo 'nameserver 8.8.8.8' > /etc/resolv.conf"

# glibc resolves A/AAAA in parallel; on an IPv6-connected host the AAAA query
# can stall on host NAT, adding seconds per lookup.
ssh -i $KEY_NAME root@172.16.0.2 "echo 'options single-request-reopen' >> /etc/resolv.conf"

# SSH into the microVM
ssh -i $KEY_NAME root@172.16.0.2

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