bin program access Post: 302291285

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Urgent!! How to write a shell program to execute command to access internet?

hi, I am new ot unix. So, can i write a shell(c shell or korn shell) program to access internet? I mean if I run the program, it can access specified url and then copy the html to a file? Can anyone help me? And how can make the program runs every 1 hr? new comer

2. Programming

C program with Oracle database access

Hey, I want to access oracle database through Unix C programming.. Can you through me some light on that...

3. Shell Programming and Scripting

How to access the C program variables in shell script

hi I wanted to access the C program variables in shell script. This script is called from the same C program. What are the ways in which i can access variables thankx

4. Programming

Accessing microsoft access from C program

I have read a number of references to libraries that could be linked into a C program to access various databases. I have been tasked with writing an oracle library that would be able to access an Microsoft access database. The oracle database is running on a Unix server and would have to access...

5. Programming

access variable through program stack

I am working on garbage collector in C? How should :confused: I find the part of heap where the variable are stored. It there any compiler (GCC) support for this.

6. UNIX for Dummies Questions & Answers

Which program can I use for blocking unauthorized access via/ssh/ftp

Hi, I need to install a program on my Centos 5.3 server that will block unauthorized ssh/ftp access attempts. The two features I require is that I should be able to configure the program to block the IP of the intruder after a a certain amount of access attempts and that it should display a...

7. OS X (Apple)

When to use /Users/m/bin instead of /usr/local/bin (& whats the diff?)?

Q1. I understand that /usr/local/bin means I can install/uninstall stuff in here and have any chance of messing up my original system files or effecting any other users. I created this directory myself. But what about the directory I didn't create, namely /Users/m/bin? How is that directory...

8. UNIX for Advanced & Expert Users

access to the bin of another user

Hello All, I am using AIX 6.1 I created two users (user_1 and user_2) with same primary group goup_1. in user_1 I am accessing an application command line which is found under user_1home_dir/application/bin I need to access the same application command line from user_2. What I did that in...

9. Programming

Access a value in 2D array in C program

Hi All, I am new to c programming. I am getting compilation error in the below program. Can somebody help me? #include<stdio.h> #include<string.h> void main() { int i=j=0; char a={'f1',4,'f2','4'}; char count; for(i=0;i<2;i++) { for(j=1;j<=2;j++) { ...

LEARN ABOUT SUSE

smrsh

SMRSH(8)						      System Manager's Manual							  SMRSH(8)

NAME

       smrsh - restricted shell for sendmail

SYNOPSIS

       smrsh -c command

DESCRIPTION

       The smrsh program is intended as a replacement for sh for use in the ``prog'' mailer in sendmail(8) configuration files.  It sharply limits
       the commands that can be run using the ``|program'' syntax of sendmail in order to improve the over all security of your system.   Briefly,
       even  if  a  ``bad guy'' can get sendmail to run a program without going through an alias or forward file, smrsh limits the set of programs
       that he or she can execute.

       Briefly, smrsh limits programs to be in a single directory, by default /usr/lib/sendmail.d/bin/ allowing the system administrator to choose
       the  set of acceptable commands, and to the shell builtin commands ``exec'', ``exit'', and ``echo''.  It also rejects any commands with the
       characters ``', `<', `>', `;', `$', `(', `)', `
' (carriage return), or `
' (newline) on the command line to prevent ``end run'' attacks.
       It allows ``||'' and ``&&'' to enable commands like: ``"|exec /usr/local/bin/filter || exit 75"''

       Initial	pathnames  on programs are stripped, so forwarding to ``/usr/bin/vacation'', ``/usr/bin/vacation'', ``/home/server/mydir/bin/vaca-
       tion'', and ``vacation'' all actually forward to `/usr/lib/sendmail.d/bin/vacation''.

       System administrators should be conservative about populating the /usr/lib/sendmail.d/bin/ directory.  For example, a reasonable  additions
       is vacation(1), and the like.  No matter how brow-beaten you may be, never include any shell or shell-like program (such as perl(1)) in the
       /usr/lib/sendmail.d/bin/ directory.  Note that this does not restrict the use of shell or  perl	scripts  in  the  /usr/lib/sendmail.d/bin/
       directory  (using the ``#!'' syntax); it simply disallows execution of arbitrary programs.  Also, including mail filtering programs such as
       procmail(1) is a very bad idea.	procmail(1) allows users to run arbitrary programs in their procmailrc(5).

COMPILATION

       Compilation should be trivial on most systems.  You may need to use -DSMRSH_PATH="path" to adjust the default search  path  (defaults	to
       ``/bin:/usr/bin'') and/or -DSMRSH_CMDDIR="dir" to change the default program directory (defaults to ``/usr/lib/sendmail.d/bin/'').

FILES

       /usr/lib/sendmail.d/bin/ - default directory for restricted programs on SuSE Linux

SEE ALSO

       sendmail(8)

							   $Date: 2004/08/06 03:55:35 $ 						  SMRSH(8)