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Posted to mapreduce-user@hadoop.apache.org by 麦树荣 <sh...@qunar.com> on 2013/05/24 11:27:51 UTC
how to stop the specified client computer OS to connect hadoop
using super user
hi, all
Our hadoop is started by user "hadoop",and the user "hadoop" is super user.
Therefore, the hadoop client from other computer can manipulate HDFS using super user "hadoop" as long as the client computer OS has the user "hadoop".
Are there any idea to stop the specified client computer OS to connect hadoop using super user if we don't use Kerberos ?
________________________________
麦树荣
RE: how to stop the specified client computer OS to connect hadoop
using super user
Posted by zangxiangyu <za...@qiyi.com>.
Hi.
why not try iptablesJ ,which in fact with no relation with hadoop. Add all
hadoop nodes and client in whitelist,add XX to blacklist if only as you
will “ stop the specified client computer OS to connect hadoop”,simply
create one iptable rule.
For long time planning,Kerberos is a must.
From: 麦树荣 [mailto:shurong.mai@qunar.com]
Sent: Friday, May 24, 2013 5:28 PM
To: user@hadoop.apache.org
Subject: how to stop the specified client computer OS to connect hadoop
using super user
hi, all
Our hadoop is started by user "hadoop",and the user "hadoop" is super user.
Therefore, the hadoop client from other computer can manipulate HDFS using
super user "hadoop" as long as the client computer OS has the user "hadoop".
Are there any idea to stop the specified client computer OS to connect
hadoop using super user if we don't use Kerberos ?
_____
麦树荣
RE: how to stop the specified client computer OS to connect hadoop
using super user
Posted by zangxiangyu <za...@qiyi.com>.
Hi.
why not try iptablesJ ,which in fact with no relation with hadoop. Add all
hadoop nodes and client in whitelist,add XX to blacklist if only as you
will “ stop the specified client computer OS to connect hadoop”,simply
create one iptable rule.
For long time planning,Kerberos is a must.
From: 麦树荣 [mailto:shurong.mai@qunar.com]
Sent: Friday, May 24, 2013 5:28 PM
To: user@hadoop.apache.org
Subject: how to stop the specified client computer OS to connect hadoop
using super user
hi, all
Our hadoop is started by user "hadoop",and the user "hadoop" is super user.
Therefore, the hadoop client from other computer can manipulate HDFS using
super user "hadoop" as long as the client computer OS has the user "hadoop".
Are there any idea to stop the specified client computer OS to connect
hadoop using super user if we don't use Kerberos ?
_____
麦树荣
RE: how to stop the specified client computer OS to connect hadoop
using super user
Posted by zangxiangyu <za...@qiyi.com>.
Hi.
why not try iptablesJ ,which in fact with no relation with hadoop. Add all
hadoop nodes and client in whitelist,add XX to blacklist if only as you
will “ stop the specified client computer OS to connect hadoop”,simply
create one iptable rule.
For long time planning,Kerberos is a must.
From: 麦树荣 [mailto:shurong.mai@qunar.com]
Sent: Friday, May 24, 2013 5:28 PM
To: user@hadoop.apache.org
Subject: how to stop the specified client computer OS to connect hadoop
using super user
hi, all
Our hadoop is started by user "hadoop",and the user "hadoop" is super user.
Therefore, the hadoop client from other computer can manipulate HDFS using
super user "hadoop" as long as the client computer OS has the user "hadoop".
Are there any idea to stop the specified client computer OS to connect
hadoop using super user if we don't use Kerberos ?
_____
麦树荣
RE: how to stop the specified client computer OS to connect hadoop
using super user
Posted by zangxiangyu <za...@qiyi.com>.
Hi.
why not try iptablesJ ,which in fact with no relation with hadoop. Add all
hadoop nodes and client in whitelist,add XX to blacklist if only as you
will “ stop the specified client computer OS to connect hadoop”,simply
create one iptable rule.
For long time planning,Kerberos is a must.
From: 麦树荣 [mailto:shurong.mai@qunar.com]
Sent: Friday, May 24, 2013 5:28 PM
To: user@hadoop.apache.org
Subject: how to stop the specified client computer OS to connect hadoop
using super user
hi, all
Our hadoop is started by user "hadoop",and the user "hadoop" is super user.
Therefore, the hadoop client from other computer can manipulate HDFS using
super user "hadoop" as long as the client computer OS has the user "hadoop".
Are there any idea to stop the specified client computer OS to connect
hadoop using super user if we don't use Kerberos ?
_____
麦树荣