Return-Path: X-Original-To: apmail-hadoop-user-archive@minotaur.apache.org Delivered-To: apmail-hadoop-user-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id A9F3ED6D3 for ; Fri, 24 May 2013 09:28:34 +0000 (UTC) Received: (qmail 32488 invoked by uid 500); 24 May 2013 09:28:29 -0000 Delivered-To: apmail-hadoop-user-archive@hadoop.apache.org Received: (qmail 32178 invoked by uid 500); 24 May 2013 09:28:28 -0000 Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hadoop.apache.org Delivered-To: mailing list user@hadoop.apache.org Received: (qmail 32152 invoked by uid 99); 24 May 2013 09:28:27 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 24 May 2013 09:28:27 +0000 X-ASF-Spam-Status: No, hits=2.2 required=5.0 tests=HTML_MESSAGE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of shurong.mai@qunar.com designates 59.151.11.100 as permitted sender) Received: from [59.151.11.100] (HELO Exchange01.qunarservers.com) (59.151.11.100) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 24 May 2013 09:28:21 +0000 Received: from EXCHANGE04.qunarservers.com ([fe80::61ad:fbce:bf97:7bda]) by Exchange01.qunarservers.com ([fe80::f5ee:a175:8cd6:af57%14]) with mapi id 14.01.0438.000; Fri, 24 May 2013 17:27:51 +0800 From: =?gb2312?B?wvPK98jZ?= To: "user@hadoop.apache.org" Subject: how to stop the specified client computer OS to connect hadoop using super user Thread-Topic: how to stop the specified client computer OS to connect hadoop using super user Thread-Index: Ac5YYPYYN541C9EnTHy/BB/ZMrRfmg== Date: Fri, 24 May 2013 09:27:51 +0000 Message-ID: <201305241728258508198@qunar.com> Reply-To: user6d6b4dda Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [192.168.126.193] Content-Type: multipart/alternative; boundary="_000_201305241728258508198qunarcom_" MIME-Version: 1.0 X-Virus-Checked: Checked by ClamAV on apache.org --_000_201305241728258508198qunarcom_ Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 aGksIGFsbA0KDQpPdXIgaGFkb29wIGlzIHN0YXJ0ZWQgYnkgdXNlciAiaGFkb29wIixhbmQgdGhl IHVzZXIgImhhZG9vcCIgaXMgc3VwZXIgdXNlci4NClRoZXJlZm9yZSwgdGhlIGhhZG9vcCBjbGll bnQgZnJvbSBvdGhlciBjb21wdXRlciBjYW4gbWFuaXB1bGF0ZSBIREZTIHVzaW5nIHN1cGVyIHVz ZXIgImhhZG9vcCIgYXMgbG9uZyBhcyB0aGUgY2xpZW50IGNvbXB1dGVyIE9TIGhhcyB0aGUgdXNl ciAiaGFkb29wIi4NCg0KQXJlIHRoZXJlIGFueSBpZGVhIHRvIHN0b3AgdGhlIHNwZWNpZmllZCBj bGllbnQgY29tcHV0ZXIgT1MgdG8gY29ubmVjdCBoYWRvb3AgdXNpbmcgc3VwZXIgdXNlciBpZiB3 ZSBkb24ndCB1c2UgS2VyYmVyb3MgPw0KDQoNCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fDQrC88r3yNkNCg== --_000_201305241728258508198qunarcom_ Content-Type: text/html; charset="gb2312" Content-Transfer-Encoding: quoted-printable

hi, all

Our hadoop is started by user "hado= op",and the user "hadoop" is super&= nbsp;user.

Therefore, the hadoop client from other = computer can manipulate HDFS using super user= "hadoop" as long as the client&nbs= p;computer OS has the user "hadoop".

Are there any idea to stop the spec= ified client computer OS to connect hadoop&nb= sp;using super user if we don't use Kerb= eros ?

=C2=F3=CA=F7=C8=D9

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