writable protected file


 
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Old 10-28-2008
writable protected file

Greetings

I am trying to create a solution that will log information into a file. That is the easy part.

What I am trying to do is have a front end script that ill ask a user what their reasoning is for logging in and log that reason into a file. The hard part I am finding is that I need that file to be such that the user can not modify it.

My first thought is that if the file can be written to then it can be modified but I wanted to ask here to see if this is possible.
 
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warn.conf(4)							   File Formats 						      warn.conf(4)

NAME
warn.conf - Kerberos warning configuration file SYNOPSIS
/etc/krb5/warn.conf DESCRIPTION
The warn.conf file contains configuration information specifying how users will be warned by the ktkt_warnd daemon about ticket expiration on a Kerberos client. Credential expiration warnings are sent, by means of syslog, to auth.notice. All other warning messages are sent to daemon.notice. Each Kerberos client host must have a warn.conf file in order for users on that host to get Kerberos warnings from the client. Entries in the warn.conf file must have the following format: principal syslog | terminal | mail time [email_address] principal Specifies the principal name to be warned. The asterisk (*) wildcard can be used to specify groups of principals. syslog Sends the warnings to the system's syslog. Depending on the /etc/syslog.conf file, syslog entries are written to the /var/adm/messages file and/or displayed on the terminal. terminal Sends the warnings to display on the terminal. mail Sends the warnings as email to the address specified by email_address. time Specifies how much time before the TGT expires when a warning should be sent. The default time value is seconds, but you can specify h (hours) and m (minutes) after the number to specify other time values. email_address Specifies the email address at which to send the warnings. This field must be specified only with the mail field. EXAMPLES
Example 1: Specifying warnings The following warn.conf entry * syslog 5m specifies that warnings will be sent to the syslog five minutes before the expiration of the TGT for all principals. The form of the mes- sage is: jdb@ACME.COM: your kerberos credentials expire in 5 minutes FILES
/usr/lib/krb5/ktkt_warnd Kerberos warning daemon SEE ALSO
ktkt_warnd(1M), syslog.conf(4), SEAM(5) SunOS 5.10 22 Apr 2003 warn.conf(4)