Do you know how long the commands on the remote machine will approximately take? If so you could run the ssh-command in the background and then use sleep to let pass this time (plus some for contingency). If the command the still runs, you consider it to be hanging and kill it, if it has finished it is ok. You can use the "jobs" built-in ksh command to check the status of the job.
We suppose the commands you want to run remotely will take 20 seconds approximately. We add 10 seconds just to be sure and put the IP adress of the host to be contacted in a variable which is read in a loop :
Code:
.... < your script >....
cat list_of_ipadresses | while read ipadress ; do
ssh ssh $ipadress "<...commands ..>" &
sleep 30
jobs > /dev/null
if [ $(jobs -p %s 2>/dev/null| wc -l) -ge 1 ] ; then
print - "an error occurred contacting $ipadress
kill %1
else
print - "success contacting $ipadress"
fi
done
...
The first "jobs" statement is there to clear the display of all the "done"-messages if backgroup jobs already terminated during the sleep-statement.
bakunin
thank you so much Bakunin, will try this code and let you know the results.
But I am not very sure about the ksh shell.
Thanks a TON !!
Last edited by vikas027; 11-04-2007 at 09:26 PM..
Reason: forgot something
We have a unix script scheduled to execute once in a day, some times it hangs on the server and never performs its operations, we need to manually kill the process and re-start that script, is there any way to have notification when the script hangs on the server.
Thanks & Regards,
Murthy. (3 Replies)
Hi,
Im creating a script that is supposed to run commands on remote server using sftp.
My script is as below:
#!/bin/ksh
sftp remote_server
mypassword
cd /u08/mydir/allfiles
mget *
..
But this is what I got when I runned the script:
Connecting to remote server...... (3 Replies)
Hi, I have googled for quite some time and couldn't able to get what exactly I am looking for.. My query is "how to stop a shell script which is running inside a remote server, using a script"??? can any one give some suggestions to sort this out. (1 Reply)
Hi All,
I am using a expect script to run a shell script on remote server, the code is as follows. But the problem is that it executes only first command, and hangs it doesn't run the next commands.
spawn ssh $uid@$host
expect "password:"
send "$password\r"
expect "*\r"
send... (2 Replies)
hi,
I am using the below line to run a script from remote server(say server A) to another server(say server B).
ssh username@servername ksh script name.
The issue is the script logs into server B, executes the script on server B, transfers the file to server A but does not exit from... (4 Replies)
Hi,
I am trying to automate the process of fetching files from remote server to local server through sftp. I have the username and password for the remote solaris server. But I need to give password manually everytime i run the script.
Can anyone help me in automating the script such that it... (3 Replies)
Hi guys,
So i am in server1 and i have to login to server 2, 3,4 and run some script there(logging script) and output its result. What i am doing is running the script in server2 and outputting it to a file in server 2 and then Scp'ing the file to server1. Similarly i am doing this for other... (5 Replies)
Hello Every one!!
I am trying to write a shell script which will connect to a remote server and execute scripts which are at a certain path in the remote server.
Before this I am using a sudo command to change the user.
The place where I am stuck is, I am able to connect to the... (6 Replies)
I have a script, which connecting to remote server and first checks, if the files are there by timestamp. If not I want the script exit without error. Below is a code
TARFILE=${NAME}.tar
TARGZFILE=${NAME}.tar.gz
ssh ${DESTSERVNAME} 'cd /export/home/iciprod/download/let/monthly;... (3 Replies)
local script:
cat > first.sh
cd /tmp
echo $PWD
echo `whoami`
cd /tmp/123
tar -cvf 789.tar 456
sleep 10
except script:
cat > first
#!/usr/bin/expect
set ip 10.5.15.20
set user "xyz123"
set password "123456"
set script first.sh
spawn sh -c "ssh $user@$ip bash < $script" (1 Reply)
Discussion started by: Aditya Avanth
1 Replies
LEARN ABOUT DEBIAN
ntpd.conf
NTPD.CONF(5) File Formats Manual NTPD.CONF(5)NAME
ntpd.conf - Network Time Protocol daemon configuration file
DESCRIPTION
This manual page describes the format of the ntpd(8) configuration file.
The optional weight keyword permits finer control over the relative importance of time sources (servers or sensor devices). Weights are
specified in the range 1 to 10; if no weight is given, the default is 1. A server with a weight of 5, for example, will have five times
more influence on time offset calculation than a server with a weight of 1.
ntpd.conf has the following format:
Empty lines and lines beginning with the `#' character are ignored.
Keywords may be specified multiple times within the configuration file. They are as follows:
listen on address
OpenNTPd has the ability to sync the local clock to remote NTP servers and, if this directive is specified, can act as NTP server
itself, redistributing the local clock.
Specify a local IP address or a hostname the ntpd(8) daemon should listen on to enable remote clients synchronization. If it
appears multiple times, ntpd(8) will listen on each given address. If `*' is given as an address, ntpd(8) will listen on all local
addresses. ntpd(8) does not listen on any address by default. For example:
listen on *
or
listen on 127.0.0.1
listen on ::1
sensor device [correction microseconds] [weight weight-value]
Specify a timedelta sensor device ntpd(8) should use. The sensor can be specified multiple times: ntpd(8) will use each given sen-
sor that actually exists. Non-existent sensors are ignored. If `*' is given as device name, ntpd(8) will use all timedelta sensors
it finds. ntpd(8) does not use any timedelta sensor by default. For example:
sensor *
sensor udcf0
An optional correction in microseconds can be given to compensate for the sensor's offset. The maximum correction is 127 seconds.
For example, if a DCF77 receiver is lagging 15ms behind actual time:
sensor udcf0 correction 15000
server address [weight weight-value]
Specify the IP address or the hostname of an NTP server to synchronize to. If it appears multiple times, ntpd(8) will try to syn-
chronize to all of the servers specified. If a hostname resolves to multiple IPv4 and/or IPv6 addresses, ntpd(8) uses the first
address. If it does not get a reply, ntpd(8) retries with the next address and continues to do so until a working address is found.
For example:
server 10.0.0.2 weight 5
server ntp.example.org weight 1
To provide redundancy, it is good practice to configure multiple servers. In general, best accuracy is obtained by using servers
that have a low network latency.
servers address [weight weight-value]
As with server, specify the IP address or hostname of an NTP server to synchronize to. If it appears multiple times, ntpd(8) will
try to synchronize to all of the servers specified. Should the hostname resolve to multiple IP addresses, ntpd(8) will try to syn-
chronize to all of them. For example:
servers pool.ntp.org
FILES
/etc/openntpd/ntpd.conf
default ntpd(8) configuration file
SEE ALSO ntpd(8), sysctl(8)HISTORY
The ntpd.conf file format first appeared in OpenBSD 3.6 .
$Mdocdate: October 2 2007 $ NTPD.CONF(5)