How do I make multiple connections to the server in this case
Given the following code
I want it so it can make two simultaneous connections to the server (instead of one). I thought about maybe using multiple forks(), but I'm at a loss at even how to construct the pseudo code. Ideas?
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)
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)
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.
What I plan to do is expand this batch file to connect to multiple servers and execute one script... (2 Replies)
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)
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)
Server has more TIME_WAIT connections in Apache(port 80) Hi,
My webserver has 16GB of RAM and CentOS 5.5, Apache 2.2.3, It's shared webserver used of for webhosting. I have optmized the server as :
<IfModule prefork.c>... (4 Replies)
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)
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)
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)
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
LEARN ABOUT FREEBSD
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/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)