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Full Discussion: How to check if a Port is accepting connections.
Top Forums Shell Programming and Scripting How to check if a Port is accepting connections. Post 302341855 by RiSk on Thursday 6th of August 2009 06:05:08 PM
Old 08-06-2009
netcat

nc -vz -w 10 ip port

just be aware that the [[:digit:]] will not work in hpux, nor do you really need it, you can take my bash code below and fill in your details.



Code:
#!/bin/bash

lolb=`awk '/[[:digit:]]/ { print $5}' /var/www/htdocs/vip/.form.php | cut -d \" -f 2 | grep [[:digit:]]`
EMAIL_TXT=/home/svcsuprt/email.txt
NEED_MAIL=0

# This is where we make the EMAIl_TXT data, first we remove the old one to ensure there is no munged data, 
# then add a header with some info in it.

cat /dev/null > /home/svcsuprt/email.txt
echo "Cannot connect the the following Load Balancers, please correct this asap as it impacts http://sitescope/vip" > $EMAIL_TXT
echo " " >> $EMAIL_TXT

# This is the main loop of the script that uses netcat to see if it can connect to 22, if it cannot, it goes in EMAIL_TXT

for ip in $lolb; 

        do /usr/bin/nc -vz -w 10 $ip 22;
                if [ $? -eq 1 ]
        then
                echo "$ip failed connectivity testing" >> $EMAIL_TXT; export NEED_MAIL=1
        fi; 
done;

## Send email

if [ ${NEED_MAIL} -eq 1 ]
        then
        cat /home/svcsuprt/email.txt | /bin/mailx -s "Load Balancer SSH test" email@tld.com

fi

 

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LEARN ABOUT DEBIAN

filetea

filetea(8)						      System Manager's Manual							filetea(8)

NAME

       filetea - Web based file sharing service daemon

SYNOPSIS

       filetea [OPTIONS]

DESCRIPTION

       This manual page documents briefly the filetea command.

       FileTea	is  a Web service that provides instant and anonymous file-sharing using only a standard browser as client. Unlike traditional Web
       based file-sharing services, FileTea does not store files server-side. Instead, files are just routed on-the-fly from  seeder  to  leecher,
       through the server.

       filetea	is  the service daemon that runs on a FileTea server. It handles peer synchronization, file routing and status reporting; and also
       acts as web-server for static HTML content when run in standalone mode.

OPTIONS

       -h, --help
	      Display a brief summary of the command-line options and their default values.

       -c config, --conf=config
	      Absolute path for the configuration file to use, default is /etc/filetea/filetea.conf.

       -D, --daemonize
	      Run the service in the background.

       -p port, --http-port=port
	      Port to listen on for plain HTTP service, overriding the value specified in configuration file.

       -P port, --https-port=port
	      Port to listen on for secure HTTP service (https), overriding the value specified in configuration file.

FILES

       /etc/filetea/filetea.conf
	      Filetea config file.

AUTHOR

       This manpage has been written by Eduardo Lima Mitev <elima@igalia.com>

								    2011-10-21								filetea(8)
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