Here is a ping node script. Look it over, create a mail.list file and set the path to this file in the script. Then add a cron entry to run the script at any interval you choose. The script will ping any host you have listed in the ping file (which you need to define and set its path to.). The script was written by the author of Mastering UNIX Shell Scripting by Wiley books (he provides his scripts for free on his website). I use the script but I have modified it so that I ping the IPs in the host file instead of a ping list. Note that I simply changed the extension on the script to preserve formatting when you open it online. Change extension back to ksh after saving.
Hi, dear all, I am rather new to Unix and have this problem where I cant seem to ping from 1 host to another. The scenerio is as follows: -
1 QNX host->Eth->1 SCO host
the SCO host is configured with it's IP
the QNX host is configured with another IP
both in the same domain, ie, 172.20.3.XX... (3 Replies)
The problem I am facing now is that the QNX host could not ping the SCO host and vice versa. They are in the same domain, ie, 172.20.3.xx. As I am very new to Unix, I guess I must have missed out some important steps. Pls help... Thanx alot (2 Replies)
Hello,
I have a problem - I created a chrooted jail for one user. When I'm logged in as root, everything work fine, but when I'm logged in as a chrooted user - I have many problems:
1. When I execute the command ping, I get weird results:
bash-3.00$ usr/sbin/ping localhost ... (4 Replies)
Hello
I have a server in it.siroe.com
I added it.siroe.com in /etc/resolv.conf.
I still can't ping the server.
any service to restart here?
any other file to edit?
thx (4 Replies)
Hi All,
I am using Vmware Workstation 6.0.3 build-80004.
Guest OS: Solaris 10
Host OS : Win XP
I am getting request time out when i am trying to ping from XP ( cmd line) to Solaris VM
- I have assigned IP 192.168.50.5 in Solaris VM ( Hostname: Tower1) and it is in UP status.
... (4 Replies)
Hi,
I have a weird problem.
when ever I do ping command like for example
ping unix.comI get the following message:
# ping unix.com
ping: unknown host unix.com
but when I use host the computer is able to know the host.
# host unix.com
unix.com has address 81.17.242.186
unix.com mail is... (2 Replies)
Hi I am trying to write a script which runs until the host is up. i got it figured out that it needs to be in loop till it return $? = 0.
Not getting it through though. I am not sure about the 6th line !!!
#!/bin/sh
HOSTS="host.txt"
ping(){
for myhost in "$HOSTS"
do
ping -c -1 "$myhost"... (8 Replies)
Hi All,
I have the requirement where am pinging the server and matching the IP address with the existing IP address. Below code is returning me the IP address and my requirement is i have to see that also whether it is pinging or not
PING useipapd01 (172.22.32.87) 56(84) bytes of data.
64... (1 Reply)
Actually. I was getting a ping to remote host failed for one of my etherchannel. When I checked it was in backup adapter and again I use to faileover and brought to primary channel.
But it was again going to backup channel and giving me the alert ping to remotehost failed. When I checked the load... (3 Replies)
Discussion started by: Mohamed Thamim
3 Replies
LEARN ABOUT SUSE
smrsh
SMRSH(8) System Manager's Manual SMRSH(8)NAME
smrsh - restricted shell for sendmail
SYNOPSIS
smrsh -c command
DESCRIPTION
The smrsh program is intended as a replacement for sh for use in the ``prog'' mailer in sendmail(8) configuration files. It sharply limits
the commands that can be run using the ``|program'' syntax of sendmail in order to improve the over all security of your system. Briefly,
even if a ``bad guy'' can get sendmail to run a program without going through an alias or forward file, smrsh limits the set of programs
that he or she can execute.
Briefly, smrsh limits programs to be in a single directory, by default /usr/lib/sendmail.d/bin/ allowing the system administrator to choose
the set of acceptable commands, and to the shell builtin commands ``exec'', ``exit'', and ``echo''. It also rejects any commands with the
characters ``', `<', `>', `;', `$', `(', `)', `
' (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)