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middleware/httpproxy: disable v6 lookup

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Don't lookup the AAAA dns.google.com.
This commit is contained in:
Miek Gieben
2016-11-30 20:12:14 +00:00
parent b85c6788dd
commit ada704e0ae
1 changed files with 2 additions and 16 deletions
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18
middleware/httpproxy/google.go
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@@ -109,13 +109,8 @@ func (g *google) OnStartup() error {
if err != nil {
return err
}
r.SetQuestion(dns.Fqdn(ghost), dns.TypeAAAA)
new6, err := g.lookup(r)
if err != nil {
return err
}
up, _ := newSimpleUpstream(append(new, new6...))
up, _ := newSimpleUpstream(new)
g.Lock()
g.addr = up
g.Unlock()
@@ -133,14 +128,8 @@ func (g *google) OnStartup() error {
log.Printf("[WARNING] Failed to lookup A records %q: %s", ghost, err)
continue
}
r.SetQuestion(dns.Fqdn(ghost), dns.TypeAAAA)
new6, err := g.lookup(r)
if err != nil {
log.Printf("[WARNING] Failed to lookup AAAA records %q: %s", ghost, err)
continue
}
up, _ := newSimpleUpstream(append(new, new6...))
up, _ := newSimpleUpstream(new)
g.Lock()
g.addr = up
g.Unlock()
@@ -188,9 +177,6 @@ func (g *google) lookup(r *dns.Msg) ([]string, error) {
if a, ok := an.(*dns.A); ok {
ret = append(ret, net.JoinHostPort(a.A.String(), "443"))
}
if a, ok := an.(*dns.AAAA); ok {
ret = append(ret, net.JoinHostPort(a.AAAA.String(), "443"))
}
}
if len(ret) > 0 {
return ret, nil