newCachedAuthToken(),
			&tls.Config{
				RootCAs:          globalRootCAs,
				CipherSuites:     fips.TLSCiphers(),
				CurvePreferences: fips.TLSCurveIDs(),
			}),
		Local:        local,
		Hosts:        hosts,
		AuthToken:    validateStorageRequestToken,
		AuthFn:       newCachedAuthToken(),
		BlockConnect: globalGridStart,

	}

	tlsClientConfig := tls.Config{
		RootCAs:            s.RootCAs,
		CipherSuites:       s.CipherSuites,
		CurvePreferences:   s.CurvePreferences,
		ClientSessionCache: tls.NewLRUClientSessionCache(tlsClientSessionCacheSize),
	}

	// For more details about various values used here refer
	// https://golang.org/pkg/net/http/#Transport documentation

	return xhttp.ConnSettings{
		LookupHost:       globalDNSCache.LookupHost,
		DialTimeout:      rest.DefaultTimeout,
		RootCAs:          globalRootCAs,
		CipherSuites:     fips.TLSCiphers(),
		CurvePreferences: fips.TLSCurveIDs(),
		EnableHTTP2:      false,
		TCPOptions:       globalTCPOptions,
	}.NewInternodeHTTPTransport(maxIdleConnsPerHost)
}

// NewHTTPTransportWithClientCerts returns a new http configuration

			NextProtos:               []string{"http/1.1", "h2"},
			ClientSessionCache:       tls.NewLRUClientSessionCache(64),
			CipherSuites:             fips.TLSCiphersBackwardCompatible(),
			CurvePreferences:         fips.TLSCurveIDs(),
		}
		// This is only to support client side certificate authentication
		// https://coreos.com/etcd/docs/latest/op-guide/security.html

Go 1.23 enabled the experimental post-quantum key exchange mechanism
X25519Kyber768Draft00 by default. The default can be reverted using the
[`tlskyber` setting](/pkg/crypto/tls/#Config.CurvePreferences).

Go 1.23 changed the behavior of
[crypto/x509.ParseCertificate](/pkg/crypto/x509/#ParseCertificate) to reject
serial numbers that are negative. This change can be reverted with

pkg crypto/tls, type ClientSessionState struct
pkg crypto/tls, type Config struct, ClientSessionCache ClientSessionCache
pkg crypto/tls, type Config struct, CurvePreferences []CurveID
pkg crypto/tls, type ConnectionState struct, Version uint16
pkg crypto/tls, type CurveID uint16
pkg crypto/x509, func CreateCertificateRequest(io.Reader, *CertificateRequest, interface{}) ([]uint8, error)