Hi,
Hope all your are doing well. Need a suggestion from you.
I am writing an automated shell script that will effectively check the telnet connectivity with different backends from present deployment server.
Ideally, this script reads each backend hostname from a configuration file and fires telnet command on that. like
but the catch here is, if the connection is established shell holds the prompts there, it does not automatically exits. I get something like
Sometime if the remote host does not respond then it holds for long time,
This symbolises we need manual intervention clearly to come out. I want script should wait for certain interval if it does not get response come out and try next host.
Any ideas how to implement?
I can not use expect technogloy as it is not permitted in our environment.
I tried google and search in this forum as well, but did find a suitable approach.
Please let me know your ideas, any help would be very much appreciated.
ssh user@host -q -n 'grep `hostname` /etc/hosts; telnet 10.100.23.45 1234;'
When i run this command remotely it is hanging and not giving me the prompt, Can anyone tell me how can I exit a telnet command remotely please.
Thanks. (10 Replies)
Hi All,
I need the exit status of a command which is executed through sftp connection.
Example:
sftp user@host <<EOF
mkdir /home/karteek/testing
put /home/xyz.txt /home/karteek/testing
EOF
------
In the above example, I need the exit status of the put command.
Please help me.
... (2 Replies)
Hi,
I need to do a test Telnet in KSH and if the connection is good then disconnect the telnet session with out logging in and without exiting the shell script.
Example output of a good connection:
$telnet xxx.xx.xx.xxx xxxx
Trying xxx.xx.xx.xxx...
Connected to xxx.xx.xx.xxx.
Escape... (1 Reply)
Hi,
i have typed telnet yahoo.com 80 in command prompt
it displays as a blank command prompt page titling as Telnet Yahoo.com
Other than that i am not able to get anything. can anyone sort me out the reason for this (12 Replies)
Hi,
The code below is used to telnet to list of devices and configure them. The program executes in this manner:
1. telnet to the first device in file.txt
2. one the telnet command is executed a "press any key to continue" prompts.
3. once a return key is executed it ask for username,... (1 Reply)
I have a ksh script, which pbruns into another account.
I want to pbrun run into that account, and continue running all the engine commands(i.e setroot, setsite xxx, etc) in my script.
But instead, it pbruns into the account, and just gives me a shell prompt.. and stops there.
Only once i... (2 Replies)
I want the text based Star Wars movie at towel.blinkenlights.nl to loop infinitely.
It plays the movie and then disconnects my session? Can anyone think of a way to make my unix machine automatically reconnect over and over?
EDIT
no commands are required are the connection its just in and... (3 Replies)
Hi,
I am trying to start Weblogic Admin server using start-up script (./startWeblogic.sh) from a remote host using a different user. The server starts fine but prompt is stuck, it does not return
Background: We have multiple admin servers in different environment and the requirement is all... (4 Replies)
Hi ,
I am not able to exit fom zone console login prompt.
I have tried options like
~. ~~. and @. but it is not working fo me.
Could someone Please help me on this.
Thanks in Advance!!
Regards,
Laxxi (7 Replies)
Hello everybody,
I am coding a script, that allow the user to enter some information using prompt messages, i.e:
sEpisode=1
read -e -i "$sEpisode" -p "Start download from episode: " downloadFrom
sEpisode="${downloadFrom:-$sEpisode}"
This code allows the user to set the download from... (4 Replies)
Discussion started by: Abu Rayane
4 Replies
LEARN ABOUT CENTOS
telnet-probe
TELNET-PROBE(1) General Commands Manual TELNET-PROBE(1)NAME
telnet-probe - lightweight telnet-like port probe
SYNOPSIS
$PCP_BINADM_DIR/telnet-probe [-c] [-v] host port
DESCRIPTION
telnet-probe allows the pmdashping(1) daemons to establish connections to arbitrary local and remote service-providing daemons so that
response time and service availability information can be obtained.
The required host and port number arguments have the same meaning as their telnet(1) equivalents.
The -c option causes telnet-probe to perform a connect(2) only. This skips the read(2) and write(2) exercise that would otherwise be done
after connecting (see below).
The -v option causes telnet-probe to be verbose while operating.
Once the telnet connection has been established, telnet-probe reads from stdin until end-of-file, and writes all the input data to the tel-
net connection. Next, telnet-probe will read from the telnet connection until end-of-file, discarding whatever data it receives. Then
telnet-probe exits.
To operate successfully, the input passed via telnet-probe to the remote service must be sufficient to cause the remote service to close
the connection when the last line of input has been processed, e.g. ending with ``quit'' when probing SMTP on port 25.
By default telnet-probe will not produce any output, unless there is an error in which case a diagnostic message can be displayed (in ver-
bose mode only) and the exit status will be non-zero indicating a failure.
PCP ENVIRONMENT
Environment variables with the prefix PCP_ are used to parameterize the file and directory names used by PCP. On each installation, the
file /etc/pcp.conf contains the local values for these variables. The $PCP_CONF variable may be used to specify an alternative configura-
tion file, as described in pcp.conf(5).
DIAGNOSTICS
If telnet-probe succeeds, then 0 will be returned. If the attempt to establish a connection fails or is terminated, then a non-zero exit
status is returned.
SEE ALSO PCPintro(1), pmdashping(1), pmie(1), telnet(1), connect(2), read(2) and write(2).
Performance Co-Pilot PCP TELNET-PROBE(1)