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secure appending file to secret directory without password

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Old 06-14-2010
secure appending file to secret directory without password
Good evening,
I am new to linux. I have such a problem: there are my and my boss's account. I create a file and want to "append" it to his specific directory, I don't want to have any other rights(like write),passwords, I don't want to see content of the directory. Even anybody can append to this dir. Change and delete may only my boss.

I don't want something complicated like cvs, however I want this to be secure and quick.

Is it easy to do it in Linux? BTW, let's imagine it's one machine with 2 users.

Thanks in advance.

G2

---------- Post updated 06-14-10 at 08:19 AM ---------- Previous update was 06-13-10 at 01:25 PM ----------

This probably won't do

chmod o=wx DIR

I don't want to be able to change the file
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LEARN ABOUT HPUX

newkey

newkey(1M)																newkey(1M)

NAME

       newkey - create a new Diffie-Hellman key pair in the publickey database

SYNOPSIS

       [

       [

DESCRIPTION

       establishes new public keys for users and machines on the network.  These keys are needed when using secure RPC or secure NFS service.

       prompts for a password for the given username or hostname and then creates a new public/secret Diffie-Hellman 192 bit key pair for the user
       or host.  The secret key is encrypted with the given password.  The key pair can be stored in the file, the NIS map, or entries in the LDAP
       directory.

       consults  the entry in the name service switch configuration file (see nsswitch.conf(4)) to determine which naming service is used to store
       the secure RPC keys.  If the entry specifies a unique name service, will add the key in the specified name service.  However, if there  are
       multiple name services listed, cannot decide which source to update and will display an error message.  The user is required to specify the
       source explicitly with the option.

       In the case of NIS, should be run by the superuser on the master NIS server for that domain.  In the case of LDAP, should  be  run  by  the
       superuser on a machine that has permission to update the entries in the LDAP directory.

   Options
	      Create a new public/secret key pair for the privileged user at the given
			     hostname.	Prompts for a password for the given hostname.

	      Create a new public/secret key pair for the given
			     username.	Prompts for a password for the given username.

	      Update the database in the specified source:
			     (for NIS), or (LDAP).  Other sources may be available in the future.

WARNINGS

       HP-UX 11i Version 2 is the last HP-UX release on which NIS+ is supported.  LDAP is the recommended replacement for NIS+.  HP fully supports
       the industry standard naming services based on LDAP.

AUTHOR

       was developed by Sun Microsystems, Inc.

SEE ALSO

       chkey(1), keylogin(1), nsswitch.conf(4), publickey(4).

																	newkey(1M)