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Full Discussion: Get opened port with given PID?
Top Forums Shell Programming and Scripting Get opened port with given PID? Post 302540501 by linuxadmin on Thursday 21st of July 2011 12:58:45 AM
Old 07-21-2011
Quote:
Originally Posted by shamrock
You should be able to grep the port tomcat is listening on from the output of lsof
Dear shamrock, i tried as you told
Code:
[root@linux ~]# lsof | grep 8080
automount  2867      root  mem       REG       8,11      98080    1006186 /usr/lib/autofs/lookup_file.so

And zaxxon, what you told is correct only. I can get it from server.xml file.
But my problem is : we have to use this script in a number of servers. And the server.xml file may be manually edited. There will be http & https connections also. The part <Connector port="portNum" will edit manually. And there is a chance to change the alignment also.
Code:
[root@linux ~]# grep 8080 /tomcat6/apache-tomcat-6.0.18/conf/server.xml
         Define a non-SSL HTTP/1.1 Connector on port 8080
    <Connector port="8080" protocol="HTTP/1.1" 
               port="8080" protocol="HTTP/1.1"

So upto my knowledge , there is only one way , that to GET the PORT number from PROCESS id.
Code:
[root@linux ~]# ps -ef | grep tomcat
root      7976     1  0 Jul18 ?        00:22:11 /usr/java/jdk1.6.0_13/bin/java -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.util.logging.config.file=/tomcat6/apache-tomcat-6.0.18/conf/logging.properties -verbose:gc -XX:+PrintGCDetails -XX:MaxPermSize=512M -Xms1024M -Xmx1024M -Djava.awt.headless=true -XX:+UseParallelOldGC -XX:+UseParallelGC -Djava.endorsed.dirs=/tomcat6/apache-tomcat-6.0.18/endorsed -classpath :/tomcat6/apache-tomcat-6.0.18/bin/bootstrap.jar -Dcatalina.base=/tomcat6/apache-tomcat-6.0.18 -Dcatalina.home=/tomcat6/apache-tomcat-6.0.18 -Djava.io.tmpdir=/tomcat6/apache-tomcat-6.0.18/temp org.apache.catalina.startup.Bootstrap start
root     28214 28183  0 10:02 pts/1    00:00:00 grep tomcat

[root@linux ~]# ps -ef | grep catalina | grep -v "grep catalina" |  grep -v "catalina.out"|awk '{print $2}' | head -1
7976

[root@linux ~]# fuser 8080/tcp
8080/tcp:             7976       -->> I need vice-versa of this. That is , by giving process id , i should get port number. I tried by grep of fuser but i couldn't find.

 

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LEARN ABOUT CENTOS

ipa-client-automount

ipa-client-automount(1) 					 IPA Manual Pages					   ipa-client-automount(1)

NAME

       ipa-client-automount - Configure automount and NFS for IPA

SYNOPSIS

       ipa-client-automount [OPTION]... <location>

DESCRIPTION

       Configures automount for IPA.

       The automount configuration consists of three files:

       o      /etc/nsswitch.conf

       o      /etc/sysconfig/autofs

       o      /etc/autofs_ldap_auth.conf

       By  default  this will use DNS discovery to attempt to determine the IPA server(s) to use. If IPA servers are discovered then the automount
       client will be configured to use DNS discovery.

       If DNS discovery fails or a specific server is desired, use the --server option.

       The default automount location is named default. To specify a different one use the --location option.

       The IPA client must already be configured in order to configure automount. The IPA client is configured as part of a server installation.

       There are two ways to configure automount. The default is to use sssd to manage the automount maps. Alternatively autofs can configured	to
       bind to LDAP over GSSAPI and authenticate using the machine's host principal.

       The nsswitch automount service is configured to use either sss or ldap and files depending on whether SSSD is configured or not.

       NFSv4 is also configured. The rpc.gssd and rpc.idmapd are started on clients to support Kerberos-secured mounts.

OPTIONS

       --server=SERVER Set the IPA server to connect to

       --location=LOCATION
	      Automount location

       -S, --no-sssd
	      Do not configure the client to use SSSD for automount

       -d, --debug
	      Print debugging information to stdout

       -U, --unattended
	      Unattended installation. The user will not be prompted

       --uninstall
	      Restore the automount configuration files

FILES

       Files that will be always be configured:

	      /etc/nsswitch.conf

       Files that will be configured when SSSD is the automount client (default):

	      /etc/sssd/sssd.conf

       Files that will be configured when using the ldap automount client:

	      /etc/sysconfig/autofs

	      /etc/autofs_ldap_auth.conf

EXIT STATUS

       0 if the installation was successful

       1 if an error occurred

IPA
								    May 25 2012 					   ipa-client-automount(1)
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