tailscale/net
Brad Fitzpatrick 53a2f63658 net/dns/resolver: race well-known resolvers less aggressively
Instead of blasting away at all upstream resolvers at the same time,
make a timing plan upon reconfiguration and have each upstream have an
associated start delay, depending on the overall forwarding config.

So now if you have two or four upstream Google or Cloudflare DNS
servers (e.g. two IPv4 and two IPv6), we now usually only send a
query, not four.

This is especially nice on iOS where we start fewer DoH queries and
thus fewer HTTP/1 requests (because we still disable HTTP/2 on iOS),
fewer sockets, fewer goroutines, and fewer associated HTTP buffers,
etc, saving overall memory burstiness.

Fixes #2436
Updates tailscale/corp#2250
Updates tailscale/corp#2238

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-07-25 20:45:47 -07:00
..
dns net/dns/resolver: race well-known resolvers less aggressively 2021-07-25 20:45:47 -07:00
dnscache control/controlclient, net/{dnscache,dnsfallback}: add DNS fallback mechanism 2021-03-01 18:42:03 -08:00
dnsfallback net/dnsfallback: regenerate 2021-07-19 15:31:56 -07:00
flowtrack net/packet, wgengine/filter: support SCTP 2021-03-20 21:34:13 -07:00
interfaces net/interface: add AWS App Runner /proc/net/route test 2021-07-14 10:01:14 -07:00
netcheck net/{interfaces,netcheck}: rename some fields, funcs 2021-06-17 17:50:13 -07:00
netns netns_linux: remove special handling for tests. 2021-07-14 10:01:14 -07:00
netstat all: adapt to opaque netaddr types 2021-05-16 14:52:00 -07:00
nettest net/nettest: make nettest.NewConn pass x/net/nettest.TestConn. 2021-04-06 15:34:29 -07:00
packet net/packet: use netaddr AppendTo methods 2021-05-20 20:42:18 -07:00
portmapper net/portmapper: disable UPnP on iOS for now 2021-07-22 13:33:38 -07:00
socks5 net/socks5/tssocks: add a SOCKS5 dialer type, method-ifying code 2021-06-28 13:12:42 -07:00
speedtest Implemented Commandline Download Speedtest (#2064) 2021-07-15 14:43:13 -04:00
stun tstest/integration: add testNode.AwaitListening, DERP+STUN, improve proxy trap 2021-05-03 12:14:20 -07:00
tlsdial net/tlsdial, derp/derphttp: finish DERPNode.CertName validation 2020-06-01 09:01:37 -07:00
tsaddr net/tsaddr: simplify TailscaleServiceIP 2021-05-28 20:36:26 -07:00
tshttpproxy net/tshttpproxy: call winhttp calls from a fixed OS thread 2021-03-03 19:16:04 -08:00
tstun net/tstun: fix data races 2021-07-07 16:15:29 -07:00