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Diffstat (limited to 'src/net')
| -rw-r--r-- | src/net/net.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/net/net.go b/src/net/net.go index f8b5834acb..82dc222de1 100644 --- a/src/net/net.go +++ b/src/net/net.go @@ -68,6 +68,11 @@ GODEBUG environment variable (see package runtime) to go or cgo, as in: The decision can also be forced while building the Go source tree by setting the netgo or netcgo build tag. +The netgo build tag disables entirely the use of the native (CGO) resolver, +meaning the Go resolver is the only one that can be used. +With the netcgo build tag the native and the pure Go resolver are compiled into the binary, +but the native (CGO) resolver is preferred over the Go resolver. +With netcgo, the Go resolver can still be forced at runtime with GODEBUG=netdns=go. A numeric netdns setting, as in GODEBUG=netdns=1, causes the resolver to print debugging information about its decisions. |