I need help in finding a script to monitor loads for 8+ servers on a single console. The goal here is to centralize it and run the script from a single server. Can anyone help on this?
Im running this script on each server to monitor the load.
while true; do w | grep average | grep -v grep... (7 Replies)
hi,
i want to know cpu utilizatiion per process per cpu..for single processor also if multicore in linux ..to use these values in shell script to kill processes exceeding cpu utilization.ps (pcpu) command does not give exact values..top does not give persistant values..psstat,vmstat..does njot... (3 Replies)
Hello all,
I would be happy if any one could help me with a shell script that would determine all the processes running on a Unix server and post a mail if any of the process is not running or aborted.
Thanks in advance
Regards,
pradeep kulkarni.
:mad: (13 Replies)
Hi all.
Sorry to express my questions wrongly in my early post,I repost my question again here.
My pc has dual core, I wirte an application with two process, parents process and child process.
My quetion is
how to realize :if the child process is on core 0,it will tell me I'm on core 0,if it... (1 Reply)
hello there,
can someone please tell me the commands that makes sense, from a production point of view, to be used to make sure CPU, LOAD or IO usages on a Linux or Solaris server isn't too high?
I'm aware of vmstat, iostat, sar. But i seriously need real world advice as to what fields in... (1 Reply)
Hi,
could someone give me an example for a debian server script? I need to check a process if the process has a high cpu load (top).
If yes the whole server needs to reboot.
Thats it, nothing more. ;)
Hope someone could help me.
Regards
woisch (2 Replies)
Hi,
Linux redhat 5.5
I need to write a kshell script that shows all the process that consume 100% CPU (or more. strange but there are time that top shows higger value that 100) and they are active more than 5 minute.
The top command shows all the relevat information:
The PID of the cpu ,... (0 Replies)
hi, i am using solaris server. I want to find the total CPU usage on a server. Top command will give that result, but here that command is not working. So anyone can help me to find the total CPU usage. (2 Replies)
Hi Guys,
Monitoring 'Total Processes' on Linux servers has been always something you 'should' do.
My question is - why? Is it relevant anymore?
If you monitor memory and cpu params, you have a pretty good idea about what's going on.
Is the number of processes really matter?
Thanks (1 Reply)
Discussion started by: DjDeaf
1 Replies
LEARN ABOUT FREEBSD
pppctl
PPPCTL(8) BSD System Manager's Manual PPPCTL(8)NAME
pppctl -- PPP control program
SYNOPSIS
pppctl [-v] [-t n] [-p passwd] [host:]Port | LocalSocket [command[;command]...]
DESCRIPTION
This utility provides command line control of the ppp(8) daemon. Its primary use is to facilitate simple scripts that control a running dae-
mon.
The pppctl utility is passed at least one argument, specifying the socket on which ppp is listening. Refer to the 'set server' command of
ppp for details. If the socket contains a leading '/', it is taken as an AF_LOCAL socket. If it contains a colon, it is treated as a
host:port pair, otherwise it is treated as a TCP port specification on the local machine (127.0.0.1). Both the host and port may be speci-
fied numerically if you wish to avoid a DNS lookup or do not have an entry for the given port in /etc/services.
All remaining arguments are concatenated to form the command(s) that will be sent to the ppp daemon. If any semi-colon characters are found,
they are treated as command delimiters, allowing more than one command in a given 'session'. For example:
pppctl 3000 set timeout 300; show timeout
Do not forget to escape or quote the ';' as it is a special character for most shells.
If no command arguments are given, pppctl enters interactive mode, where commands are read from standard input. When reading commands, the
editline(3) library is used, allowing command-line editing (with editrc(5) defining editing behaviour). The history size defaults to 20
lines.
The following command line options are available:
-v Display all data sent to and received from the ppp daemon. Normally, pppctl displays only non-prompt lines received. This option is
ignored in interactive mode.
-t n Use a timeout of n instead of the default 2 seconds when connecting. This may be required if you wish to control a daemon over a
slow (or even a dialup) link.
-p passwd
Specify the password required by the ppp daemon. If this switch is not used, pppctl will prompt for a password once it has success-
fully connected to ppp.
ENVIRONMENT
The following environment variables are understood by pppctl when in interactive mode:
EL_SIZE The number of history lines. The default is 20.
EL_EDITOR The edit mode. Only values of "emacs" and "vi" are accepted. Other values are silently ignored. This environment variable will
override the bind -v and bind -e commands in ~/.editrc.
EXAMPLES
If you run ppp in -auto mode, pppctl can be used to automate many frequent tasks (you can actually control ppp in any mode except interactive
mode). Use of the -p option is discouraged (even in scripts that are not readable by others) as a ps(1) listing may reveal your secret.
The best way to allow easy, secure pppctl access is to create a local server socket in /etc/ppp/ppp.conf (in the correct section) like this:
set server /var/run/internet "" 0177
This will instruct ppp to create a local domain socket, with srw------- permissions and no password, allowing access only to the user that
invoked ppp. Refer to the ppp(8) man page for further details.
You can now create some easy-access scripts. To connect to the internet:
#! /bin/sh
test $# -eq 0 && time=300 || time=$1
exec pppctl /var/run/internet set timeout $time; dial
To disconnect:
#! /bin/sh
exec pppctl /var/run/internet set timeout 300; close
To check if the line is up:
#! /bin/sh
pppctl -p '' -v /var/run/internet quit | grep ^PPP >/dev/null
if [ $? -eq 0 ]; then
echo Link is up
else
echo Link is down
fi
You can even make a generic script:
#! /bin/sh
exec pppctl /var/run/internet "$@"
You could also use pppctl to control when dial-on-demand works. Suppose you want ppp to run all the time, but you want to prevent dial-out
between 8pm and 8am each day. However, any connections active at 8pm should continue to remain active until they are closed or naturally
time out.
A cron(8) entry for 8pm which runs
pppctl /var/run/internet set filter dial 0 deny 0 0
will block all further dial requests, and the corresponding 8am entry
pppctl /var/run/internet set filter dial -1
will allow them again.
SEE ALSO ps(1), editline(3), editrc(5), services(5), ppp(8)HISTORY
The pppctl utility first appeared in FreeBSD 2.2.5.
BSD June 26, 1997 BSD