10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Good morning,
Is there any command to view remote conxiones an AIX server?
Thank you very much and best regards. (1 Reply)
Discussion started by: systemoper
1 Replies
2. Red Hat
Dear all,
Hope you are all fine & enjoying your good health.
Look at this equation
1+1+1=3
So simple I just want to say that I have three internet connections of 1mb, 1mb & 1mb but I can use only 1mb connection at a time & other two connections are useless for me. But now I want to make all... (0 Replies)
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3. UNIX for Dummies Questions & Answers
Hi,
I am trying to comprehend Samba's behaviour on one of my Arch systems and thus I'd like to ask a couple of quick questions:
The setup I'd like to build is just a small home network for file-sharing using guest connections.
Here it goes,
1) When using the following settings for... (4 Replies)
Discussion started by: konos5
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4. AIX
I am using AIX 5.3, its a application server, i am giving the support of OS & Hardware only, now i want to check how many connections are connected to my server, means how many people using my server.:confused: (4 Replies)
Discussion started by: reply.ravi
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5. UNIX for Dummies Questions & Answers
Server has more TIME_WAIT connections in Apache(port 80) Hi,
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6. UNIX for Dummies Questions & Answers
Hi,
Currently my website is hosted on Linux-Apache environment. If I try to access a file on a website named "Read.txt" as http://xyz.com/READ.txt, I get an error message "Page Not Found". Only way to access is http://xyz.com/Read.txt. How do I make URLS (File Names and Folder Names)... (1 Reply)
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7. Shell Programming and Scripting
I need to remove a pattern say, ABCD whether it is in uppercase or lowercase from a string. How to do it using SED?
for example
ABCDEF should output to EF
abcdEF should also output to EF (2 Replies)
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8. Shell Programming and Scripting
Hi,
I have a simple windows batch file which connects to a UNIX server and runs a shell script in my home directory on the server.
It works perfectly, using plink + ssh keys in the background.
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9. Shell Programming and Scripting
Hi,
I have tried to make the conditions similar to the below one's, perhaps, I am not sure if there are any more way's to do that????
if ) ]]
echo "Whatever"
fi (5 Replies)
Discussion started by: hitmansilentass
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10. UNIX for Advanced & Expert Users
Hi Guys,
Just wondering if anyone of you have been in a situation where you end up having around 100 close_wait connections and seems to me those connections are locking up resources/processes in the server so unless the server is rebooted those processes won't be released by the close_wait... (3 Replies)
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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/libexec/sm.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'', ``/home/server/mydir/bin/vacation'', and ``vacation''
all actually forward to ``/usr/libexec/sm.bin/vacation''.
System administrators should be conservative about populating the sm.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 sm.bin direc-
tory. Note that this does not restrict the use of shell or perl scripts in the sm.bin directory (using the ``#!'' syntax); it simply dis-
allows 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/libexec/sm.bin'').
FILES
/usr/adm/sm.bin - default directory for restricted programs on most OSs
/var/adm/sm.bin - directory for restricted programs on HP UX and Solaris
/usr/libexec/sm.bin - directory for restricted programs on FreeBSD (>= 3.3) and DragonFly BSD
SEE ALSO
sendmail(8)
$Date: 2013-11-22 20:52:00 $ SMRSH(8)