11-10-2004
Implicit Ping
Hi All
I want some help in writing a script that will:
1. Implicitly ping a server to see if it is up or not. (I have blocked all ICMP traffic on that box)
2. if the server is down send an alert mail to users
I have looked and looked but I could not get any way to do this. What I have thought of doing is:
1. Send an email to a particular user on the host box every 15 mins.
2. Have a script on the host to check the mailbox every 15 mins and delete that message.
3. If there is no mail in the mailbox... send the alert.
This will accomplish the implicit ping. But:
a. Is there a way to do this using shell/ perl scripts? - 2-3
b. Are there some security concerns in this kind of a solution?
c. Is there some other way I could accomplish implicit pinging of the server?
Any advise would be appreciated!
regards
KS
10 More Discussions You Might Find Interesting
1. Programming
I am having strange warnings from gcc compiler, which I don't think should come while cmpiling.
Can anyone help? The warnings are:
- warning: implicit declaration of function 'bzero'
- warning: implicit declaration of function 'inet_addr'
The code is as below:
int main(int argc, char... (2 Replies)
Discussion started by: Ahsan
2 Replies
2. AIX
only wanted to know .. if I have some tivoli jobs running with different user .. will this mean that everytime the job invokes .. the .profile runs for that user ... or is it that the .profile runs only at explicit LOGINs ...
e.g if a cron calls a job under some user, does it run the .profile of... (1 Reply)
Discussion started by: rajesh_149
1 Replies
3. Shell Programming and Scripting
Hi,
I want to FTP can some one help me how do I do this manually from unix command line
Thanks, (2 Replies)
Discussion started by: sridatos
2 Replies
4. Programming
Hi,
I'm tying to use the following function to reboot the system as part of my code
#include <unistd.h>
#include <linux/reboot.h>
int restart(unsigned int delay)
{
sleep(delay);
return reboot(LINUX_REBOOT_CMD_RESTART);
}
When I try to compile the code I get the warning in the... (2 Replies)
Discussion started by: galapogos
2 Replies
5. UNIX for Dummies Questions & Answers
Can this be done? Or do you need some other program installed on the AIX box? (6 Replies)
Discussion started by: NycUnxer
6 Replies
6. SuSE
Hi,
I'm having issues with implicit dependencies for my RPM package. This is the error I'm getting:
error: Failed dependencies:
libclntsh.so.11.1()(64bit) is needed by geomatica-10.4-0.x86_64
Our software has a dynamically loaded library which links to the Oracle's libclntsh.so.11.1... (2 Replies)
Discussion started by: pneveu
2 Replies
7. UNIX for Dummies Questions & Answers
Here are the essentials:
un: myuser
pw: mypasswd
site: sftp.somesite.com
port: 990
type: FTPS
enc: FTP over implicit TLS
program used:
Curl 7.1.x on Hpux 11.31
I would like to "put" 1 file on there server.
Here is my syntax, what am I doing wrong?
curl -3 -v --cacert... (5 Replies)
Discussion started by: olyanderson
5 Replies
8. UNIX for Advanced & Expert Users
Here are the essentials:
un: myuser
pw: mypasswd
site: sftp.somesite.com
port: 990
type: FTPS
enc: FTP over implicit TLS
program used:
Curl 7.1.x on Hpux 11.31
I would like to "put" 1 file on there server.
Here is my syntax, what am I doing wrong?
curl -3 -v --cacert... (4 Replies)
Discussion started by: olyanderson
4 Replies
9. Shell Programming and Scripting
Hi,
I have to upload a file to a remote Citrix Sharefile server using implicit FTPS. But the problem I'm facing is that when the FTPS UNIX script is called through a GUI tool; it keeps on running and after forcibly killing that job, if I try to connect the same server directly from the UNIX box... (1 Reply)
Discussion started by: dips_ag
1 Replies
10. Programming
help with bash script!
im am working on this script to make sure my server will stay online, so i made this script..
HOSTS="192.168.138.155"
COUNT=4
pingtest(){
for myhost in "$@"
do
ping -c "$COUNT" "$myhost" &&return 1
done
return 0
}
if pingtest $HOSTS
#100% failed... (4 Replies)
Discussion started by: mort3924
4 Replies
LEARN ABOUT FREEBSD
comsat
COMSAT(8) BSD System Manager's Manual COMSAT(8)
NAME
comsat -- biff server
SYNOPSIS
comsat
DESCRIPTION
The comsat utility is the server process which receives reports of incoming mail and notifies users if they have requested this service. The
comsat utility receives messages on a datagram port associated with the ``biff'' service specification (see services(5) and inetd(8)). The
one line messages are of the form:
user@mailbox-offset[:mailbox-name]
If the user specified is logged in to the system and the associated terminal has the owner execute bit turned on (by a ``biff y''), the
offset is used as a seek offset into the appropriate mailbox file and the first 7 lines or 560 characters of the message are printed on the
user's terminal. Lines which appear to be part of the message header other than the ``From'', ``To'', ``Date'', or ``Subject'' lines are not
included in the displayed message.
If the user specified is logged in to the system and the associated terminal has the group execute bit turned on (by a ``biff b''), two bell
characters (ASCII 07) are printed on the user's terminal.
If mailbox-name omitted, standard mailbox assumed.
FILES
/var/run/utx.active
to find out who is logged on and on what terminals
/var/mail/user standard mailbox
SEE ALSO
biff(1), inetd(8)
HISTORY
The comsat utility appeared in 4.2BSD.
BUGS
The message header filtering is prone to error. The density of the information presented is near the theoretical minimum.
Users should be notified of mail which arrives on other machines than the one to which they are currently logged in.
The notification should appear in a separate window so it does not mess up the screen.
BSD
January 21, 2010 BSD