Hi,
Using Linux 5 . A change in the script which will take a input file which has servername,port. As telnet was not going into the next item in the file, i used curl instead of telnet. This works. However i am not able to get the output of the script write into the log file properly. I will have to see if i can get the output which only displays in the console be printed in the output.log file.
Input to the file is : serverlist.txt
Script is :trytelnet.sh -->
Execution is :
Moderator's Comments:
Please use CODE tags consistently as required by forum rules!
Last edited by RudiC; 07-09-2018 at 06:06 PM..
Reason: Added missing CODE tags.
Hello All,
Can somebody help me with this script. I have an output file with a list of servers ips and ports. I need to be able to run this script to list all the server ips in the outfile and find out if the port is open or not.
#!/bin/sh
IFS=#;for i in $(cat portTest);
do
# check... (2 Replies)
Hi all - i currently run a domain strifex.net. This domain has a dedicated IP address and in having that, should be able to run a ventrilo VoIP server from it. I uploaded all the needed files etc... and am able to connect to it, if and only if i enable DMZ to my local machine - then i am able to... (1 Reply)
Hi All,
I've been using this to verify if ports is open on a server. For example I would like to check port 5887, "telnet ip.of.server 5887" using on dos. If there's response on it then I can say it's open, if not then it's close.
Is that assumption accurate?
Thanks for any comments you... (4 Replies)
I have a ftp server on ssl talking on port 21, i would like to allow another port to acess the same server. I am not sure if its possible or not and if its how can i do that? (2 Replies)
Hi All,
I have a problem with auto telnet script, but I want to tell u something
a) I am only a member access on the server, so not able to access 'root' account
b) not able to install any software on server
3) On server, there is not install 'except'
I have to write a script, which is ran... (0 Replies)
Alright... this question comes from the fact that I'm trying to setup postfix to relay messages to Office 365 SMTP but its giving me connection refused... I read that if you have doubts if your port is open or not you should telnet to them so thats what I did.
This is a Red Hat 6.3 box.
My... (4 Replies)
I have a server with 6 Ethernet ports. 4 are the the motherboard based 1 GBE ports and 2 are 10 GBE ports on NICs.
I have set these all up with static IP addresses and use the standard /etc/nsswitch.files. My IP addresses are
net0 192.168.1.82
net1 192.168.2.82
and so on till
net5... (4 Replies)
I wish to grep for an entry in a file if it contains and does not start with #, Listen 443 or Listen 9443
Below is what helped me get Listen 443 but how can I tweak the below command to also include Listen 9443 port ?
Note: Listen 8443 or Listen 4438 should fail in the grep.
... (2 Replies)
Discussion started by: mohtashims
2 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)