src/server/pkg/cert/logging_conn.go
func (p *loggingPipe) Close() error {
	p.clientWriter.Close()
	p.serverWriter.Close()
	return nil
}
func (p *loggingPipe) Close() error {
	p.clientWriter.Close()
	p.serverWriter.Close()
	return nil
}
// Close closes 'l' (no more reading/writing will be possible)