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Full Discussion: Passing credentials via .netric file in Linux
Top Forums UNIX for Advanced & Expert Users Passing credentials via .netric file in Linux Post 302963190 by hicksd8 on Friday 25th of December 2015 03:55:22 AM
Old 12-25-2015
The two things to check with the use of .netrc are the syntax of the file content and the access rights of the file itself.

Here is an excerpt from some documentation I wrote several years ago but nothing has changed:

*****

The contents of the /.netrc file would, for example, be:-

machine plymsql login administrator password memorandum

NOTE: .netrc must have read/write access for the owner ONLY. If other users have read access it may fail to work and ftp will not auto-connect. Therefore, since in this case the user is root, should the file be re-created it must be set as follows:-
cd / <or cd to the home directory of the user under which the job is running>
chown <userid> .netrc
chmod 600 .netrc <giving read/write to only the owner (userid)>

If ftp finds the target nodename listed it uses the login name and password given to create an ftp connection to the target. Of course, this userid/password combination MUST give the process sufficient credentials and access rights to allow the reading/writing required to complete the required tasks. If the system manager changes the respective user account or password without reflecting this in /.netrc it will cause the whole ftp phase of the scripts to fail.

*****

Check these out and report back your progress, or lack of.

You can check out the .netrc functionality interactively by just entering "ftp <nodename>" at the command line. The ftp session should connect immediately without entering credentials. If it doesn't the .netrc mechanism isn't working. Ensure that the nodename can be resolved, eg. by an entry in /etc/hosts or other means such as DNS.
Last edited by hicksd8; 12-25-2015 at 05:11 AM..
 

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LEARN ABOUT V7

netrc

NETRC(5)						      BSD File Formats Manual							  NETRC(5)

NAME

     netrc -- user configuration for ftp

SYNOPSIS

     ~/.netrc

DESCRIPTION

     This file contains configuration and autologin information for the File Transfer Protocol client ftp(1).

     The .netrc file contains login and initialization information used by the auto-login process.  It resides in the user's home directory.  The
     following tokens are recognized; they may be separated by spaces, tabs, or new-lines:

     machine name
	       Identify a remote machine name.	The auto-login process searches the .netrc file for a machine token that matches the remote
	       machine specified on the ftp command line or as an open command argument.  Once a match is made, the subsequent .netrc tokens are
	       processed, stopping when the end of file is reached or another machine or a default token is encountered.

     default   This is the same as machine name except that default matches any name.  There can be only one default token, and it must be after
	       all machine tokens.  This is normally used as:

		     default login anonymous password user@site

	       thereby giving the user automatic anonymous ftp login to machines not specified in .netrc.  This can be overridden by using the -n
	       flag to disable auto-login.

     login name
	       Identify a user on the remote machine.  If this token is present, the auto-login process will initiate a login using the specified
	       name.

     password string
	       Supply a password.  If this token is present, the auto-login process will supply the specified string if the remote server requires
	       a password as part of the login process.  Note that if this token is present in the .netrc file for any user other than anonymous,
	       ftp will abort the auto-login process if the .netrc is readable by anyone besides the user.

     account string
	       Supply an additional account password.  If this token is present, the auto-login process will supply the specified string if the
	       remote server requires an additional account password, or the auto-login process will initiate an ACCT command if it does not.

     macdef name
	       Define a macro.	This token functions like the ftp macdef command functions.  A macro is defined with the specified name; its con-
	       tents begin with the next .netrc line and continue until a null line (consecutive new-line characters) is encountered.  If a macro
	       named init is defined, it is automatically executed as the last step in the auto-login process.

SEE ALSO

     ftp(1), ftpd(8)

Linux NetKit (0.17)						September 23, 1997					       Linux NetKit (0.17)
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