Welcome to vijaykumar blog

echo $ - Shell Programming and Scripting

2016-06-07T10:29:00.005+03:00

$_- The default parameter for a lot of functions.
$.- Holds the current record or line number of the file handle that was last read. It is read-only and will be reset to 0 when the file handle is closed.
$/- Holds the input record separator. The record separator is usually the newline character. However, if $/ is set to an empty string, two or more newlines in the input file will be treated as one.
$,- The output separator for the print() function. Nor-mally, this variable is an empty string. However, setting $, to a newline might be useful if you need to print each element in the parameter list on a separate line.
$\-- Added as an invisible last element to the parameters passed to the print() function. Normally, an empty string, but if you want to add a newline or some other suffix to everything that is printed, you can assign the suffix to $.
$#-- The default format for printed numbers. Normally, it's set to %.20g, but you can use the format specifiers covered in the section "Example: Printing Revisited" in Chapter 9to specify your own default format.
$%-- Holds the current page number for the default file handle. If you use select() to change the default file handle, $% will change to reflect the page number of the newly selected file handle.
$=-- Holds the current page length for the default file handle. Changing the default file handle will change $= to reflect the page length of the new file handle.
$- -- Holds the number of lines left to print for the default file handle. Changing the default file handle will change $- to reflect the number of lines left to print for the new file handle.
$~-- Holds the name of the default line format for the default file handle. Normally, it is equal to the file handle's name.
$^-- Holds the name of the default heading format for the default file handle. Normally, it is equal to the file handle's name with _TOP appended to it.
$|-- If nonzero, will flush the output buffer after every write() or print() function. Normally, it is set to 0.
$$-- This UNIX-based variable holds the process number of the process running the Perl interpreter.
$?-- Holds the status of the last pipe close, back-quote string, or system() function.
$&-- Holds the string that was matched by the last successful pattern match.
$`- Holds the string that preceded whatever was matched by the last successful pattern match.
$'-- Holds the string that followed whatever was matched by the last successful pattern match.
$+-- Holds the string matched by the last bracket in the last successful pattern match. For example, the statement /Fieldname: (.*)|Fldname: (.*)/ && ($fName = $+); will find the name of a field even if you don't know which of the two possible spellings will be used.
$*-- Changes the interpretation of the ^ and $ pattern anchors. Setting $* to 1 is the same as using the /m option with the regular expression matching and substitution operators. Normally, $* is equal to 0.
$0-- Holds the name of the file containing the Perl script being executed.
$<number>-- This group of variables ($1, $2, $3, and so on) holds the regular expression pattern memory. Each set of parentheses in a pattern stores the string that match the components surrounded by the parentheses into one of the $<number>variables.
$[-- Holds the base array index. Normally, it's set to 0. Most Perl authors recommend against changing it without a very good reason.
$]-- Holds a string that identifies which version of Perl you are using. When used in a numeric context, it will be equal to the version number plus the patch level divided by 1000.
$"-- This is the separator used between list elements when an array variable is interpolated into a double-quoted string. Normally, its value is a space character.
$;-- Holds the subscript separator for multidimensional array emulation. Its use is beyond the scope of this book.
$!-- When used in a numeric context, holds the current value of errno. If used in a string context, will hold the error string associated with errno.
$@-- Holds the syntax error message, if any, from the last eval() function call.
$<- This UNIX-based variable holds the read uid of the current process.
$>-- This UNIX-based variable holds the effective uid of the current process.
$)-- This UNIX-based variable holds the read gid of the current process. If the process belongs to multiple groups, then $) will hold a string consisting of the group names separated by spaces.
$:-- Holds a string that consists of the characters that can be used to end a word when word-wrapping is performed by the ^ report formatting character. Normally, the string consists of the space, newline, and dash characters.
$^D-- Holds the current value of the debugging flags. For more information.
$^F-- Holds the value of the maximum system file description. Normally, it's set to 2. The use of this variable is beyond the scope of this book.
$^I-- Holds the file extension used to create a backup file for the in-place editing specified by the -i command line option. For example, it could be equal to ".bak."
$^L-- Holds the string used to eject a page for report printing.
$^P- This variable is an internal flag that the debugger clears so it will not debug itself.
$^T-- Holds the time, in seconds, at which the script begins running.
$^W-- Holds the current value of the -w command line option.
$^X-- Holds the full pathname of the Perl interpreter being used to run the current script.

Commands to shutdown solaris10 machine

2012-03-29T12:59:00.002+03:00

A solaris machine can be put to shutdown using the below mentioned commands .But use appropriate command that is required according to the need.

The commands are:-

1.shutdown
2.init
3.halt
4.reboot
5.poweroff
6.stop+A

1. Shutdown:- .This command is mostly used to shutdown server machines which consists of different users so that the users would be informed before shutting down the system. The default wait time for bringing the system to singler user state(root ) is 60 secs. In order to issue shutdown command one should have root priviliges.

   Syntax of Shutdown command with options.

    shutdown -i<init-state> -g<grace-period> -y

    where init-state can be 0,S,1,2,3,5,6. The default init-state is S.

   where grace-period is to set the wait time of shutdown .The default time is 60 secs.

  where -y command continues the shutdown with out prompting the meassage do you want to continue? (y or n)

2. Init :- This command is used to shutdown a single user system or change the runlevel of the system.

          syntax: init <run-level>

The below table describes about different run-levels in detail

RUN LEVEL	DESCRIPTION
0	Stops system services and daemons. Terminates all running processes. Unmounts all file systems.
S	System administatorr state. Only root is allowed to login.Only crictical file systems are monuted
1	System administatorr state. Only root is allowed to login. Local file sysytems are also mounted.
2	Normal multi-user operation state , without network file systems (NFSs)
3	Normal multiuse operation of a file server, with NFSs shared.
5	Power-down state. Shuts down the system so that it is safe to turn off power to the system.
6	Reboot state.

3.Halt:- This command shutdowns the sytem immediatley with out informing the users.

4.Reboot:- Reboots immediatley with out informing the users .The speed of such a reboot is useful in certain circumstances, such as when you’re rebooting from the single-user run state and reconfigures the system.

example:-reboot -- -rs

5. Poweroff- Shutdowns the system with out notifying the users. If the hardware supports the power off it also turns off the power to system.

6.stop+A :Stop+A Interrupts any program currently running and puts the system at the OpenBoot prompt, ready to accept OpenBoot PROM commands.

Advantage of shutdown and init over other commands:-

The Solaris reboot, poweroff, and halt commands stop the processor and synchronize the disks, but they perform unconditional shutdown of system processes. These commands are not recommended because they do not shut down any services and unmount any remaining file systems where as init and shutdown are the most reliable ways to shut down a system, because these commands shut down services in a clean, orderly fashion and shutdown the system with minimal data loss

Monitor Tuxedo Application using TXRPT utility

2012-03-14T09:27:00.001+02:00

txrpt utility

txrpt utility analyzes the standard error output of a Tuxedo server to provide a summary of service processing time within the server.

example1:-
cat tuxserver1.stderr.120115054310.29027 | txrpt
ili
service summay report is printed for all the services of the tuxedo server"tuxserver1" where we can see summary is split into hourly report which contains response time of each service and number of times the service invoked.

txrpt utility takes "std err" file of a particular tuxedo server as input where you can see each service's PID , Start Date, Start time , end time , end date (screen shot below) and analyses using some logic and converts to above output (screen shot above)

example2:-
cat tuxserver.stderr.120115054310.29027 | txrpt -d 01/15 -s 11:00 -e 13:00

You can also take customized output from txrpt utility like you can specify on which date you need analysis , also you can give from which time to which time the report should be given.

Tuxedo administration - Cleaning IPC resources

2012-03-14T08:34:00.003+02:00

Clean IPC resources

What are IPC resources:-Inter process communication resources are OS resources for example message queues, shared memory & semaphores.

How tuxedo cleans IPC resources normally:-

Normally when tmshutdown command was issued to shutdown the tyxedo system it removes all the IPC resources from the system.

What if tuxedo system doesnot clean IPC resources normally:-

But, if in case, shutdown was not successful , then few IPC resources will still remain in the system and this causes problem in tuxedo reboot next time.

How to clean IPC reources manually:-

tmipcrm [-y] [-n] [TUX_CONFIG_FILE]

Other methods of cleaning IPC reources manally:-

By listing the IPC resources first suing command ipcs

and then by removing them by command ipcrm

ipcs -s | grep $USER| awk '{printf "ipcrm -s %d\n", $2}' | sh

ipcs -m | grep $USER| awk '{printf "ipcrm -m %d\n", $2}' | sh

ipcs -q | grep $USER| awk '{printf "ipcrm -q %d\n", $2}' | sh

Service Management Facility(SMF) in Solaris10

2012-03-12T13:45:00.000+02:00

Service Management Facility is a new feature added to Solaris10. It has several advantages when compared with previous versions of solaris.

Some of the advantages are listed below.

1.SMF provides flexibility to root user to view and manage services.

2. The system administrator can also enable, disable , restart and modify the system services.

3. The dependency of a service on other services are also maintained by SMF.

4. SMF starts the services in correct order of their dependency.

5. SMF also starts the services in parallel according to the dependency so that the boot time is quicker than the previous versions of solaris.

Two important commands used in SMF are svcs and svcadm.

svcs :- Used to display information about all the services.

Common options used with svcs are :-

svcs -a :- Shows all the services

example:-

legacy_run Feb_28 lrc:/etc/rc2_d/S47pppd
legacy_run Feb_28 lrc:/etc/rc2_d/S70uucp
disabled 15:48:41 svc:/network/shell:kshell
disabled 15:48:41 svc:/network/talk:default
disabled 15:48:42 svc:/network/apocd/udp:default
online 15:47:44 svc:/system/svc/restarter:default
online 15:47:47 svc:/network/pfil:default
online 15:47:48 svc:/network/loopback:default
online 15:47:50 svc:/system/filesystem/root:default

svcs -d :- shows the dependent services.

example:-

svcs -d svc:/network/ssh:default
STATE       STIME      FMRI
online         Feb_28    svc:/network/loopback:default
online         Feb_28    svc:/network/physical:default
online         Feb_28   svc:/system/cryptosvc:default
online         Feb_28   svc:/system/filesystem/local:default
online         Feb_28   svc:/system/utmp:default
online         Feb_28   svc:/system/filesystem/autofs:default

svcs -x :- Describes the state of the service.

example:-

   svcs -x svc:/network/ssh:default
   svc:/network/ssh:default (SSH server)
   State: online since Tue Feb 28 16:01:46 2012
   See: sshd(1M)
   See: /var/svc/log/network-ssh:default.log
   Impact: None.

svcs -l :- Displays detailed information about the service.

example:-

svcs -l svc:/network/ssh:default
fmri         svc:/network/ssh:default
name         SSH server
enabled      true
state        online
next_state   none
state_time   Tue Feb 28 16:01:46 2012
logfile      /var/svc/log/network-ssh:default.log
restarter    svc:/system/svc/restarter:default
contract_id 61
dependency   require_all/none svc:/system/filesystem/local (online)
dependency   optional_all/none svc:/system/filesystem/autofs (online)
dependency   require_all/none svc:/network/loopback (online)
dependency   require_all/none svc:/network/physical (online)
dependency   require_all/none svc:/system/cryptosvc (online)
dependency   require_all/none svc:/system/utmp (online)
dependency   require_all/restart file://localhost/etc/ssh/sshd_config (online)

The state of each service can be one of the following

disabled: The service instance is not enabled and is not running.

legacy_run: The legacy service is not managed by the SMF, but the service can be
observed. This state is only used by legacy services that are started with RC scripts.

maintenance: The service instance has encountered an error that must be resolved by
the administrator.

offline: The service instance is enabled, but the service is not yet running or available
to run.

online: The service instance is enabled and has successfully started.

uninitialized: This state is the initial state for all services before their configuration
has been read.

svcadm is Used to perform common service management tasks such as enabling, disabling, or restarting service instances.

The svcadm command allows the following sub commands

enable: Enables the service instances.

example:-

svcadm enable svc:/network/swat/tcp:default

disable: Disables the service instances.

example:-

svcadm disable svc:/network/swat/tcp:default

restart: Restarts the service instance

example:-

svcadm restart svc:/network/swat/tcp:default

refresh: Refresh the service instance

example :-

svcadm refresh svc:/network/swat/tcp:default

Find out DB locks in a DB account or Instance and kill the process

2012-03-09T16:51:00.000+02:00

To find out the DB lock on a particular DB account

To find out the DB locks on all the Databases of a DB instance

To create commands to kill the DB locked sessions - fire below alter commands to kill

respective DB sessions& locks

Secure Shell (SSH) in unix

2012-03-06T11:17:00.000+02:00

The meaning of Secure Shell is to communicate between two hosts (client and server) securely over an insecure network.The sshd daemon present in each host is responsible for handling all secure connections using public-private key mechanism for authentication between two hosts (client and server). When the system restarts svc: /network/ssh:default service is started by Solaris Management Facility (SMF) which enables sshd daemon. /etc/ssh/sshd_config file present in host machines is responsible for setting up of configurations required by SSH.

For example:- In order to enable host based authentication set HostbasedAuthentication yes in sshd_config file.

Secure shell helps users to do the following things. a) Login to a remote machine using ssh b) Copy files over network using scp.


Login to a remote machine using ssh. 1. The two host systems should have same user account example:-hello placed in home directory example:-/export/home/hello 2. A directory named .ssh should be present in each of the users directory ex:-/export/home/hello/.ssh for ssh communication. 3. If you don’t find .ssh directory create one using ssh-keygen -t rsa command. Where -t represents the type of algorithm here rsa algorithm. 4.It generates the following output:- Generating public/private rsa key pair. Enter file in which to save the key (/home/hello/.ssh/id_rsa): (press enter key) Enter passphrase (empty for no passphrase): (press enter key) Enter same passphrase again: (press enter key) Your identification has been saved in /home/hello/.ssh/id_rsa. Your public key has been saved in /home/hello/.ssh/id_rsa.pub. The key fingerprint is: 88:70:31:e0:c7:7e:55:2f:35:2d:12:ac:a3:bd:f5:7c hello@XXX.com 5. At this point you have created id_rsa which contains private key and id_rsa.pub which contains public key. 6. Type ssh 192.168.0.25 it generates following output The authenticity of host '192.168.0.25' can't be established. RSA key fingerprint is 33:bf:41:a2:aa:c3:18:56:0f:21:c3:94:82:5e:9a:9a. Are you sure you want to continue connecting (yes/no)? Yes Warning: Permanently added '192.168.0.25 (RSA) to the list of known hosts. Password: Last login: Tue Mar 6 07:03:20 2012 from sunultra5 Sun Microsystems Inc. SunOS 5.10 Generic January 2005 7. Type hostname on console so that you can confirm that you have logged in to remote machine. Copy files over network using scp 1. scp <sourcefile> <username>@<hostname>:</destinationdir> 2. Type password Example: - scp /export/home/hello/license.xml hello@192.168.0.22:/export/home/hello/ Password: license.xml 100% \|*****************************\| 787 00:00

MQ administration Commands

2012-03-05T15:25:00.002+02:00

Useful Commands for MQ administration

dspmqver :- to display MQ series version
dspmq :- to view all queue managers of MQ series.
crtmqm :- to create a queue manager
strmqm :- to start queue manager
runmqsc :- to enter in to particular queue manager
endmqm :- to end a queue manager
dltmqm :- to delete a queue manager
dspmqcsv :- to display command server
endmqcsv :- to end command server
strmqcsv :- to start command server
runmqlsr :- to run listener service
endmqlsr :- to end listener service
runmqchl :- to run a channel out of queue manager
runmqdlq :- to execute dead letter handle with the help of rule table
setmqaut :- to set authorizations for particular objects like queuemanager,queue’s channels, listeners to user or group
dspmqaut :- to display authorization for particular user
dmpmqaut :- to dump authorization for particular user
runmqchi :- to run a channel initiator for particular queue manager
runmqtrm :- to run trigger monitor on initiation queue for particular queue manager
rcdmqimg :- to take objects (or) record image of a particular queue manager objects
rcrmqobj :- to recreate the mq objects which are already recorded

Useful syntax of RUNMQSC utility for hadling QueueManager

DEFINE :- To define/create MQ manager objects like queue, Channels, process, and listener.
ALTER :- to update or modify the existing objects
DISPLAY :- to view all the properties of a particular object or to Display all objects
DELETE :- to delete created objects
CLEAR :- to clear the message from the queue
END :- to come out of the queue manager
PING :- to check whether other side channel / queue manager is ready to accept our request.
START :- to start the particular channel or listener
STOP :- to stop particular channel or listener
REFRESH :- used to refresh the security every time after giving or executing, set mgr or command for queue manager or object
RESET :- used to reset channel,cluster,queue manager
RESOLVE :- to resolve the channel which is in indoubt state
SUSPEND :- to suspend a queue manager from a cluster environment
RESUME :- to remove a queue manager from a cluster environment

Adding a new device to Solaris Machine

2012-03-05T14:19:00.002+02:00

Steps to be followed while adding a new device to solaris machine

1. Connect a tape drive, disk drive, or CD-ROM to the system and perform a reconfiguration reboot.

2. Reconfiguration reboot is done by using the commands boot -r or reboot -- -r . On rebooting the system it displays a login prompt.

3. Log in and issue the dmesg command to verify that the device has been installed. You should see an entry something like this if you’re adding an SCSI disk drive:

sd3 is /pci@1c,600000/scsi@2/sd@0,0

dmesg command : Displays system diagnostic messages as well as a list of devices attached to the system
since the most recent restart.

4. Check to see that a driver is attached by issuing the prtconf command. The message driver not attached next to instance name of the device should be gone and the device now should be available for use.

prtconf command : prtconf displays system configuration information, including the total amount of memory and the device configuration, as described by the system’s hierarchy. This useful tool verifies whether a device has been seen by the system.

Solaris Default FileSystem Partition

2012-03-05T12:11:00.002+02:00

Slice	File System	Description
0	root	Root (/) is the top of the hierarchical file tree. It holds files and directories that make up the operating system. The root directory contains the directories and files critical for system operation, such as the kernel, the device drivers, and the programs used to boot the system.The root (/) file system is always in slice 0.
1	swap	Provides virtual memory or swap space. Swap space is used when you’re running programs too large to fit in the computer’s memory. The Solaris operating environment then “swaps” programs from memory to the disk and back, as needed. Although it is not technically required, it is common for the swap slice to be located in slice 1 unless /var is set up as a file system. If /var is set up,the interactive installation places /var on slice 1, and it places swap on slice 3.
2	Entire Disk	Refers to the entire disk and is defined automatically by Sun’s format utility and the Solaris installation programs. The size of this slice should not be Changed.
3	/var	This slice is unassigned by default. In Solaris 10, if you let the Sun installation program auto layout the slices, it will place the /var directory under slice 0 with the root file system. However, if during the installation, /var is selected to have its own slice, the installation program will place /var onto slice 1 and will move swap to slice 3. The /var file system is for files and directories likely to change or grow over the life of the local system. These include system logs, vi and ex backup files, printer and email spool files, backups of OS patches, and UUCP files. On a server, it’s a good idea to have these files in a separate file system so that they cannot fill up the root slice.
4		By default, slice 4 is unassigned and available for use.
5	/opt	This slice is unassigned by default. In Solaris 10, the /opt directory is put under slice 0 by default with the root file system. However, if during the installation, /opt is selected to have its own slice, the installation program will place /opt onto slice 5. /opt holds additional Sun software packages and optional third-party software that have been added to a system. If a slice is not allocated for this file system during installation, the /opt directory is put in slice 0, the root (/) file system.
6	/usr	This slice is unassigned by default. In Solaris 10, the /usr directory is put under slice 0 by default with the root file system. However, if during the installation, /usr is selected to have its own slice, the installation program will place /usr onto slice 6. / usr contains operating system commands also known as executable designed to be run by users.Files that can be used on all types of systems (such as man pages) are in /usr/share. If /usr is placed on slice 0, slice 6 becomes an unallocated slice.
7	/export/home	Holds files created by users. On a standard system, /home is a mount point that points to /export/home .

Solaris Management Control Disk Tools(SMC) for viewing and creating disk partition

2012-03-05T11:29:00.000+02:00

Graphical interface provided by SMC disk tools is one of the easiest ways to view and create partition of a disk . In oder to do this you need root priviliges.

View Disk Partition

1. open console type smc & . A windows appears in which select storage->Disks as shown below.

2. Enter password.

3. It displays a list of disks connected to your machine.

4. Select the disk you want to view .The partition information will be displayed as shown below.

5. To view or modify partition information click the partition present on right pane.

Create disk partition

1. After selecting the disk you want to partition go to action->create solaris partitions

2. A window is displayed showing the following options .

3. Select one of the radio buttons according to your wish and lick Next .

4. Select the number of partitions as shown below and click next.

5.Next window asks you to specify the size and use of partition . Fill the details of all the partitions from 0 to 3 . Shown below is the image for partition 0.

6. When you are finished with all the partitions a window is displayed showing summary of all the partitions if your satisfied with that click finish.

7. Check all the partitions where you want to create a file system and click next as shown in above diagram.

8. Finally click on finish button so that your disk is partitioned accordingly.

tmadmin - tuxedo administration

2012-03-04T08:36:00.000+02:00

tmadmin commands

tmadmin [ -r ] [ -c ] [ -v ]

§If tmadmin is invoked with the -c option, it enters configuration mode

§The -r option instructs tmadmin to enter the bulletin board as a client instead of as the administrator; in other words, it requests read-only access

§The -v option causes tmadmin to display the BEA Tuxedo version number and license number

Frequently used tmadmin commands

help, bbclean, bbstats, pclt, psr, pq, psc

>help – lists commands available in tmadmin console with the option chosen

>bbclean (bbc machine)- bbclean gracefully removes dead servers and restarts them if they are marked as restartable.

>bbstats (bbs) - Prints a summary of bulletin board statistics

bbs

Current Bulletin Board Status:

Current number of servers

Current number of services: 55

Current number of request queues: 7

Current number of server groups: 1

>printclient (pclt) [-m machine] [-u usrname] [-c cltname]

Prints information for the specified set of client processes. If no arguments, then information on all clients is printed. The -m, -u, and -c options or defaults can be used to restrict the information to any combination of machine, user name, or client name.

pclt

LMID User Name Client Name Time Status Bgn/Cmmt/Abrt

--------------- --------------- --------------- --------

appsrv NT WSH 0:10:26 IDLE 0/0/0

appsrv NT tmadmin 0:10:14 IDLE 0/0/0

bbs

Current Bulletin Board Status:

Current number of servers

Current number of services: 55

Current number of request queues: 7

Current number of server groups: 1

>printserver (psr) [-m machine] [-g groupname] [-i srvid] [-q qaddress]

Print information for application and administrative servers.

psr

Prog Name Queue Name Grp Name ID RqDone Load Done Current Service

--------- ---------- -------- -- ------ --------- ---------------

BBL 33720 dhttlg1 0 20560 1028000 ( IDLE )

romNOndem NOndemQ CSM 10 0 0 ( IDLE )

csmXChEngine XChEngineQ CSM_TMS 6100 0 0 ( IDLE )

GWADM GwDomainAdv TUXDOM 5800 0 0 ( IDLE )

ORA_TMS CSM_TMS_TMS CSM_TMS 30001 0

>printserver (psr) [-m machine] [-g groupname] [-i srvid] [-q qaddress]

> v

Verbose now on

> psr

Group ID: dhttlg1, Server ID: 0

Machine ID: dhttlg1

Process ID: 21856, Request Qaddr: 36729329, Reply Qaddr: 36729329

Server Type: ADMIN

Prog Name: /usr/local/tux91/bin/BBL

Queue Name: 33720

Options: RESTARTABLE

Max # Restarts: unlimited

Restart Command: (restartsrv)

Grace Period: n/a

Generation: 1, Max message type: 1073741824

Creation time: Fri Oct 28 03:00:21 2011

Up time: 169:25:52

Requests done: 20563

Load done: 1028150

Current Status: ( IDLE )

>printqueue (pq) [qaddress]  

Prints queue
information for all application and administrative servers. The default is to
print information about all queues. 

pq

Prog Name Queue Name # Serve Wk Queued # Queued Ave. Len Machine

--------- ------------------- --------- -------- -------- -------

csmXPymXmk XPymXmkQ 1 0 0 0.0 dhttlg1

ORA_TMS CSM_TMS_TMS 3 0 0 0.0 dhttlg1

BBL 33720 1 0 0 0.0 dhttlg1

>printservice (psc) [-m machine] [-g groupname] [-i srvid] [-a { 0|1|2 }] [-q qaddress] [-s
service]  

Prints
information for application and administrative services. The -a option
allows you to select the class of service: -a0 limits the display to
application services, -a1 selects application services plus system services
that can be called by an application, -a2 selects both of those, plus system
services that can be called by the BEA Tuxedo system. 

psc

Service Name Routine Name Prog Name Grp Name ID Machine # Done Status

------------ ------------ --------- -------- -- ------- ------ ------

csCallLsms00 reboot romNOndem CSM 10 dhttlg1 0 AVAIL

csCallLsmsE+ reboot romNOndem CSM 10 dhttlg1 0 AVAIL

csRetLSMS00 reboot romNOndem CSM 10 dhttlg1 0 AVAIL

Tuxedo configuration

2012-03-04T08:31:00.002+02:00

Tuxedo configuration

UBBCONFIG File

¨ Each Tuxedo domain is controlled by a configuration file in which installation-dependent parameters are defined.

¨ The text version of the configuration file is referred to as UBBCONFIG, although the configuration file may have any name, as long as the content of the file conforms to the format described in reference page UBBCONFIG(5) in BEA Tuxedo File Formats, Data Descriptions, MIBs, and System Processes Reference.

¨ The UBBCONFIG file for a Tuxedo domain contains all the information necessary to boot the application, such as lists of its resources, machines, groups, servers, available services, and so on.

¨ It consists of nine sections, five of which are required for all configurations: RESOURCES, MACHINES, GROUPS, SERVERS, and SERVICES.

¨ TUXCONFIG file is a binary version of the UBBCONFIG file

DMCONFIG File

¨ A Domains configuration is a set of two or more domains (or applications) that can communicate and share services with the help of the BEA Tuxedo Domains feature.

¨ DMCONFIG file defines the following:

ü The remote domains with which the local domain can communicate

ü The local resources (such as services and queues) accessible to remote domains

ü The remote resources accessible to the local domain

ü Which local and remote resources are accessible through which gateways

¨ BDMCONFIG is the binary version of DMCONFIG file

Tuxedo Bulletin Board

¨ The BEA Tuxedo system uses the TUXCONFIG file to set up a bulletin board on each server machine in a Tuxedo domain.

¨ When a Tuxedo server process becomes active, it advertises the names of its services in the bulletin board.

¨ Some information in the bulletin board is global and is replicated on every server machine in the Tuxedo domain (for example, the names and locations of all servers offering a particular service).

¨ Other information is local and is visible only on the local bulletin board (for example, the actual number and type of client requests currently waiting on a local server request queue).

Setting Environment Variables on a UNIX System

TUXCONFDIR	Tuxedo configuration direct
TUXCONFIG	Binary version of tuxedo config file (binary format of ubbconfig file)
TUXDIR	Tuxedo 32bit S/W installation directory
TUXDIR_64	Tuxedo 64bit S/W installation directory
TUXDIR_BIN	Tuxedo 32bit S/W installation - bin directory
TUXDIR_LIB	Tuxedo 32bit S/W installation - lib directory
WEBJAVADIR	$TUXDIR/udataobj/webgui/java
PATH	$APPDIR:$TUXDIR/bin:/bin:$PATH
LD_LIBRARY_PATH	$APPDIR:$TUXDIR/lib:/lib:/usr/lib:$LD_LIBRARY_PATH Note: For HP-UX systems only, use SHLIB_PATH instead of LD_LIBRARY_PATH

export TUXDIR APPDIR TUXCONFIG WEBJAVADIR PATH LD_LIBRARY_PATH

Tuxedo commands:

2012-03-03T20:47:00.002+02:00

TUXEDO ADMIN COMMANDS

tmshutdown
     Shuts down a set of BEA Tuxedo servers
tpaddusr
     Creates a BEA Tuxedo password file
tpdelusr
     Deletes a user from a BEA Tuxedo password file
tpgrpadd
     Adds a new group to the system
tpgrpdel
     Deletes a group from the system
tpusradd
     Adds a new principal to the system
tpusrdel
     Deletes a user from the system
tpusrmod
     Modifies user information on the system

tmadmin commands that will be useful to be used via option 5 in psadmin
boot commands:

boot -y

boot the domain normally, if there is an error encountered continue to boot the domain.
Unlike if you boot via psadmin it will shut the domain down

boot -y -w
      This a fast boot, as the -w switch states to boot all the servers in parallel, and not       one by one.

boot -g JSLGRP
       using the -g option states that you are going to boot by server group, every server in    tuxedo is assigned to an individual server group
       ex:- boot -g PUBSUB
               boot -g JREPGRP

boot -i 10
     every server has an individual server id assigend to it, you can get this info when you do
      a server stats from psadmin and look under the SRVID column

shutdown commands:

stop -y
     this means stop the application server normally, and bring everything down cleanly and
     clean up IPC

stop -y -c
     This means stop the application server normally even if clients are attached

stop -y -c -w 0
     This means stop the application server normally even if clients are attached and the -w
      stands for wait 0 seconds to do it shutdown now

MQRC - MQ reason codes

2012-03-03T19:41:00.002+02:00

MQRC ERROR CODES

mqrc 2033

2033 0x000007f1 MQRC_NO_MSG_AVAILABLE

mqrc 4044

4044 0x00000fcc MQRCCF_CHANNEL_NAME_ERROR

mqrc 4045

4045 0x00000fcd MQRCCF_XMIT_Q_NAME_ERROR

mqrc 4046

No matching return codes

mqrc 4043

4043 0x00000fcb MQRCCF_DATA_TOO_LARGE

mqrc 4042

4042 0x00000fca MQRCCF_CHANNEL_ALREADY_EXISTS

mqrc 4041

4041 0x00000fc9 MQRCCF_WRONG_CHANNEL_TYPE

mqrc 4040

4040 0x00000fc8 MQRCCF_COMMIT_FAILED

mqrc 4039

4039 0x00000fc7 MQRCCF_USER_EXIT_NOT_AVAILABLE

mqrc 4038

4038 0x00000fc6 MQRCCF_CHANNEL_DISABLED

mqrc 4037

4037 0x00000fc5 MQRCCF_NOT_XMIT_Q

mqrc 4036

4036 0x00000fc4 MQRCCF_MQINQ_FAILED

mqrc 4035

4035 0x00000fc3 MQRCCF_REMOTE_QM_TERMINATING

mqrc 4034

4034 0x00000fc2 MQRCCF_REMOTE_QM_UNAVAILABLE

mqrc 4033

4033 0x00000fc1 MQRCCF_UNKNOWN_REMOTE_CHANNEL

mqrc 4032

4032 0x00000fc0 MQRCCF_CHANNEL_NOT_FOUND

mqrc 4031

4031 0x00000fbf MQRCCF_CHANNEL_IN_USE

mqrc 4030

4030 0x00000fbe MQRCCF_PING_ERROR

mqrc 4029

4029 0x00000fbd MQRCCF_MQPUT_FAILED

mqrc 4028

4028 0x00000fbc MQRCCF_MQGET_FAILED

mqrc 4027

4027 0x00000fbb MQRCCF_MQOPEN_FAILED

mqrc 4026

4026 0x00000fba MQRCCF_MQCONN_FAILED

mqrc 4025

4025 0x00000fb9 MQRCCF_CHANNEL_INDOUBT

mqrc 4024

4024 0x00000fb8 MQRCCF_BIND_FAILED

mqrc 4020

4020 0x00000fb4 MQRCCF_LISTENER_NOT_STARTED

mqrc 4019

4019 0x00000fb3 MQRCCF_NO_COMMS_MANAGER

mqrc 4018

4018 0x00000fb2 MQRCCF_NO_STORAGE

mqrc 4017

4017 0x00000fb1 MQRCCF_CONNECTION_CLOSED

mqrc 4016

4016 0x00000fb0 MQRCCF_RECEIVE_FAILED

mqrc 4015

4015 0x00000faf MQRCCF_RECEIVED_DATA_ERROR

mqrc 4014

4014 0x00000fae MQRCCF_SEND_FAILED

mqrc 4013

4013 0x00000fad MQRCCF_ENTRY_ERROR

mqrc 4012

4012 0x00000fac MQRCCF_CONNECTION_REFUSED

mqrc 4011

4011 0x00000fab MQRCCF_CONFIGURATION_ERROR

mqrc 4010

4010 0x00000faa MQRCCF_HOST_NOT_AVAILABLE

mqrc 4009

4009 0x00000fa9 MQRCCF_ALLOCATE_FAILED

mqrc 4008

4008 0x00000fa8 MQRCCF_OBJECT_NAME_ERROR

mqrc 4007
4007 0x00000fa7 MQRCCF_Q_WRONG_TYPE

mqrc 4006

4006 0x00000fa6 MQRCCF_UNKNOWN_Q_MGR

mqrc 4005
4005 0x00000fa5 MQRCCF_ATTR_VALUE_ERROR

mqrc 4004

4004 0x00000fa4 MQRCCF_OBJECT_OPEN

mqrc 4003

4003 0x00000fa3 MQRCCF_LIKE_OBJECT_WRONG_TYPE

mqrc 4002

4002 0x00000fa2 MQRCCF_OBJECT_WRONG_TYPE

mqrc 4001

4001 0x00000fa1 MQRCCF_OBJECT_ALREADY_EXISTS

mqrc 3098

3098 0x00000c1a MQRCCF_PWD_LENGTH_ERROR

mqrc 3097

3097 0x00000c19 MQRCCF_PARM_SYNTAX_ERROR

mqrc 3096

3096 0x00000c18 MQRCCF_PATH_NOT_VALID

mqrc 3095

3095 0x00000c17 MQRCCF_CFST_CONFLICTING_PARM

mqrc 3094

3094 0x00000c16 MQRCCF_BROKER_COMMAND_FAILED

mqrc 3093

3093 0x00000c15 MQRCCF_NETBIOS_NAME_ERROR

mqrc 3092

3092 0x00000c14 MQRCCF_COMMS_LIBRARY_ERROR

mqrc 3091

3091 0x00000c13 MQRCCF_ACTION_VALUE_ERROR

mqrc 3090

3090 0x00000c12 MQRCCF_CLUSTER_Q_USAGE_ERROR

MQ interview questions -1

2012-03-03T19:14:00.003+02:00

MQSeries Questionnaire

1. Which of the following network protocols are supported for WebSphere MQ for HP-UX?

		A.	SPX
		B.	. UDP
		C.	. TCP/IP
		D.	. LU 6.2
		E.	. NETBIOS

2. In a WebSphere MQ environment where five queue managers are in a hub-and-spoke configuration, how many channels must be created in order for the four spoke queue managers to exchange messages with the one hub queue manager?

		A.	4
		B.	5
		C.	8
		D.	10

3. There are two channels to send messages from queue manager QM1 to queue manager QM2. Channel C1 uses transmission queue QM1.QM2 and channel C2 uses transmission queue QM2. QM1 has a remote queue definition, Q2, which specifies QM1.QM2 as the transmission queue to reach QM2. An application connected to QM1 performs an MQPUT1 specifying both an object queue name Q2 and an object queue manager name QM2. Which of the following channel(s) will be used to transmit the message?

		A.	C1
		B.	C2
		C.	C1 or C2 will be selected
		D.	No transmission will occur

4. A triggered sender channel is defined with a disconnect interval of 600. Which of the following channel states will NOT be shown after issuing a DISPLAY CHSTATUS command?

		A.	INACTIVE
		B.	BINDING
		C.	REQUESTING
		D.	STOPPING

5. A WebSphere MQ client program written in java receives a 2059 (MQRC_Q_MGR_NOT_AVAILABLE) error when attempting to connect to a queue manager. Which of the following should be verified to determine the cause of this problem?

		A.	The MQSERVER environment variable is set
		B.	The program has access to the client channel definition table
		C.	The program has set the MQ environment correctly
		D.	The queue manager's listener is running
		E.	The program has been compiled using the correct JDK

6. Which of the following represents a callback?

		A.	Requester – sender
		B.	Requester – Server
		C.	Sender – receiver
		D.	Cluster – sender

7. Which of the following scenarios require an authority check to be performed?

		A.	When an application connects to a queue manager using an MQCONN or MQCONNX call
		B.	When an application opens a WebSphere MQ object using an MQOPEN or MQPUT1 call
		C.	When an application deletes a permanent dynamic queue using an MQCLOSE call
		D.	All of the above
		E.	A and B

8. In WebSphere MQ for iSeries, the SSL key repository is accessed using:

		A.	The MQSC command ALTER QMGR SSLKEYR.
		B.	The Digital Certificate Management tool.
		C.	The IBM GSKit package.
		D.	iKeyMan.

9. When an application opens an object, the application can supply a user ID on the

MQOPEN or MQPUT1 call and ask the queue manager to use this user ID for authority checks instead of the one associated with the application. This is called:

		A.	MQM privilege
		B.	Alternate user authority
		C.	Additional User authority
		D.	None of the above

10. Which of the following commands are checked for authority by the OAM (Object Authority Manager)

		A.	Create Channel
		B.	Reset Cluster
		C.	Start Channel Listener
		D.	Start Channel Initiator
		E.	All of the above
		F.	None of the above

11. Which is the default directory in UNIX where the key repository DB file is stored? (QM1 is the Queue manager)

		A.	/var/mqm/qmgrs/QM1/ssl/key.kdb.
		B.	/var/mqm/ssl/key.kdb.
		C.	/var/qmgrs/QM1/ssl/key.kdb.
		D.	None of the above

12. Which of the following does not apply to a security exit?

		A.	Security exits are called immediately after the initial data negotiation has completed on channel startup, but before any messages start to flow
		B.	Security exits can be called only on message channels, not on MQI channels.
		C.	The name of a security exit is specified as a parameter in the channel definition
		D.	Security exit can perform functions that have nothing to do with security

13. Which of the following security services are performed by DCE channel exits?

		A.	Identification
		B.	authentication
		C.	Confidentiality
		D.	Data integrity
		E.	All of the above
		E.	a)b) and c)

14. In which structure will the userid for authentication of the application be set?

		A.	MQMD
		B.	MQTXH
		C.	MQCD
		D.	None of the above
		E.	A and B

15. The API-crossing exit is invoked for the following MQI calls namely (multi choice)

		A.	MQCLOSE
		B.	MQGET
		C.	MQINQ
		D.	MQCONN

16. Which of the following are common reasons for authentication failures during the

SSL handshake(multiple choice)

		A.	The SSL client does not have a certificate
		B.	A certificate has expired or is not yet active
		C.	There is no matching CA root certificate or the certificate chain is incomplete
		D.	A certificate is not supported

17. What is the difference between Removing and Unassigning a certificate?

		A.	When you remove a certificate, it is deleted from the certificate store for the queue manager or WebSphere MQ client but When you unassign a certificate, it remains in the certificate store but cannot be used for authentication purposes.
		B.	When you remove a certificate, it is deleted from the certificate store for the queue manager but When you unassign a certificate, it remains in the certificate store but cannot be used for authentication purposes.
		C.	When you remove a certificate, it is deleted from the certificate store for the queue manager but When you unassign a certificate, it remains in the certificate store but is not associated with any queue manager

18. Which of the following are true?

		A.	A caller MCA is an SSL client and a responder MCA is an SSL server.
		B.	A caller MCA is an SSL server and a responder MCA is an SSL client.
		C.	Both A and B
		D.	None of the above

19. An existing cluster has two queue managers, LONDON and NEW_YORK. Only LONDON has a full repository. A queue manager, PARIS, is being added to the cluster. It needs to send messages to the INVENTQ queue hosted by queue manager NEW_YORK and to the PAYROLL queue hosted by queue manager LONDON. Network connectivity exists between all three locations. How many additional definitions are required at queue managers LONDON and NEW_YORK to add queue manager PARIS to the cluster?

		A.	0
		B.	2
		C.	4
		D.	It varies based on platform

20. What is the queue name, where the cluster queue managers exchange repository information in messages?

		A.	SYSTEM.CLUSTER.COMMAND.QUEUE
		B.	SYSTEM.CLUSTER.REPOSITORY.QUEUE
		C.	SYSTEM.CLUSTER.ADMIN.QUEUE
		D.	SYSTEM.CLUSTER.EXCHANGE.QUEUE

21. A company has been running an MQSeries application for some time. In the application, client components send request messages to a server component which processes the messages and sends back replies. The company now wishes to migrate the application to use a queue manager cluster to have MQSeries balance the workload across the multiple instances of the server. As part of the migration planning, it has been identified that some request messages are related to each other, or form a sequence, and must be processed by the same instance of the server in the new environment. Which should be considered first as a way of dealing with such message affinities?

		A.	Name a specific queue manager on the MQOPEN call
		B.	Use the MQOO_BIND_ON_OPEN option on the MQOPEN call
		C.	Use a cluster workload exit
		D.	Try to remove the message affinities from the application design

22. What happens if a message-batch is sent to a particular queue manager and that queue manager becomes unavailable in a cluster?

		A.	undelivered batch of messages is backed out to the cluster transmission queue on the sending queue manager.
		B.	If the backed-out batch of messages is not in doubt and the messages are not bound to the particular queue manager, the workload management routine is called. The workload management routine selects a suitable alternative queue manager and the messages are sent there.
		C.	Messages that have already been delivered to the queue manager, or are in doubt, or have no suitable alternative, wait until the original queue manager becomes available again.
		D.	All are correct

23. Which of the following network protocols are supported for WebSphere MQ for AIX?

		A.	SPX
		B.	UDP
		C.	TCP/IP
		D.	NetBIOS

24. What is the queue name where the cluster queue managers hold the full repository information?

		A.	SYSTEM.CLUSTER.COMMAND.QUEUE
		B.	SYSTEM.CLUSTER.REPOSITORY.QUEUE
		C.	SYSTEM.CLUSTER.ADMIN.QUEUE
		D.	SYSTEM.CLUSTER.EXCHANGE.QUEUE

25. When an application opens (MQOPEN) a queue with MQOO_BIND_ON_OPEN?

		A.	To send sequence of all messages to available queue instance
		B.	To send sequence of all messages to same instance of queue
		C.	SYSTEM.CLUSTER.ADMIN.QUEUE
		D.	SYSTEM.CLUSTER.EXCHANGE.QUEUE

26. What are advantages of using Clusters?

		A.	Reduced system administration.
		B.	Increased availability
		C.	Workload balancing.
		D.	All of the above

27. An existing cluster has two queue managers, LONDON and NEW_YORK. Only LONDON has a full repository. A queue manager, PARIS, is being added to the cluster. It needs to send messages to the INVENTQ queue hosted by queue manager NEW_YORK and to the PAYROLL queue hosted by queue manager LONDON. Network connectivity exists between all three locations. How many Transmission queue definitions are required at queue manager PARIS to send messages to INVENTQ and PAYROLL queue?

		A.	1
		B.	2
		C.	4
		D.	3

28. To establish a cluster with four queue managers (QM1, QM2, QM3 and QM4) how many total number of channels required?

		A.	3
		B.	8
		C.	4
		D.	2

29. What is command used to create cluster queue, where SALES is the name of the cluster?

		A.	DEFINE QLOCAL(Q1) CLUSTER(SALES)
		B.	DEFINE QLOCAL(Q1)
		C.	DEFINE QLOCAL(Q1) REPOS(SALES)
		D.	DEFINE QLOCAL(Q1) QMGR(SALES)

30. What is the cluster transmission queue which will be created by default on each cluster queue manager?

		A.	SYSTEM.CLUSTER.TRANSMIT.QUEUE
		B.	SYSTEM.CLUSTER.XMIT.QUEUE
		C.	SYSTEM.CLUSTER.TRANSMISSION.QUEUE
		D.	SYSTEM.CLUSTER.TRANS.QUEUE

31. What is the command used to specify the cluster workload exit?

		A.	ALTER QMGR CLWLEXIT(myexit)
		B.	ALTER QMGR CWLEXIT(myexit)
		C.	ALTER QMGR EXIT(myexit)
		D.	ALTER QMGR EXIT –n workload

32. What are the different ways that clusters will achieve work load balancing?

		A.	Increasing repository queue managers
		B.	Writing workload exits
		C.	Maintaining same instance of queue
		D.	Creating more clusters

33.

Using the following configuration: DEFINE QREMOTE(Q1) RNAME(Q1) RQMNAME(QM1) XMITQ(QM1.XMIT)
DEFINE QLOCAL(QM1) USAGE(XMITQ)
DEFINE QLOCAL(QM1.XMIT) USAGE(XMITQ)
DEFINE QLOCAL(QXMIT) USAGE(XMITQ)
DEFINE QLOCAL(QMY.XMIT) USAGE(XMITQ)
ALTER QMGR DEFXMITQ(QXMIT)
DEF QREMOTE(QMY) RQMNAME(QMX)

If an application running on QMX sets up the Object Descriptor such that the ObjectName is 'Q1', and the ObjectQMgrName is 'QM1', which transmission queue will messages end up on when the application issues MQPUT1s?

	QXMIT
	QM1
	QM1.XMIT
	QMY.XMIT

34.

Using the following configuration:
DEFINE QREMOTE(Q1) RNAME(Q1) RQMNAME(QM1) XMITQ(QM1.XMIT)
DEFINE QLOCAL(QM1) USAGE(XMITQ)
DEFINE QLOCAL(QM1.XMIT) USAGE(XMITQ)
DEFINE QLOCAL(QXMIT) USAGE(XMITQ)
DEFINE QLOCAL(QMY.XMIT) USAGE(XMITQ)
ALTER QMGR DEFXMITQ(QXMIT)
DEF QREMOTE(QMY) RQMNAME(QMX)

If an application running on QMX sets up the Object Descriptor such that the ObjectName is 'Q1' and the ObjectQMgrName is 'QMY', which transmission queue will messages end up on when the application issues MQPUT1s?

	QXMIT
	QM1
	QM1.XMIT
	QMY.XMIT

35.

Using the following configuration:
DEFINE QREMOTE(Q1) RNAME(Q1) RQMNAME(QM1) XMITQ(QM1.XMIT)
DEFINE QLOCAL(QM1) USAGE(XMITQ)
DEFINE QLOCAL(QM1.XMIT) USAGE(XMITQ)
DEFINE QLOCAL(QXMIT) USAGE(XMITQ)
DEFINE QLOCAL(QMY.XMIT) USAGE(XMITQ)
ALTER QMGR DEFXMITQ(QXMIT)
DEF QREMOTE(QMY) RQMNAME(QMX)

If an application running on QMX sets up the Object Descriptor such that the ObjectName is 'Q1' and the ObjectQMgrName is 'QMZ', which transmission queue will messages end up on when the application issues MQPUT1s?

	QXMIT
	QM1
	QM1.XMIT
	QMY.XMIT

36.

When using the ALTER CHANNEL command, which one of the following keywords is a required parameter?

	TRPTYPE
	CONNAME
	XMITQ
	CHLTYPE

37.

You have 10 Sun Solaris client systems and a server queue manager on a Windows NT system.

You need to configure an MQI channel between each client system and the server queue manager.

What is the minimum number of textually different DEFINE CHANNEL commands are necessary to acomplish this?

	0
	1.
	10.
	11.
	20.

38. The maximum number of messages that can be placed on a queue on MQSeries for Windows NT V5 is limited to (assuming no MQGETs are being done):

	The number of messages that make up 320MB
	The number of messages that make up 1GB
	The value of MAXDEPTH
	The limit is based on the upper limit of your file system

39. Queue manager aliases are defined using:

	The DEFINE QMGRA command
	The DEFINE QMALIAS command
	The ALTER QMGR ALIAS(aliasname) command
	The DEFINE QREMOTE command

40. Two WebSphere MQ applications are being deployed. One will put requests onto a queue. The other will get these requests off of the queue and process them. It has been determined that each application should only be able to open the queue in the mode that it uses. Which of the following runmqsc commands will enable this action to occur?

		A.	define ql(APPL.QUEUE) define qalias(APPL.GET.QUEUE) targq(APPL.QUEUE) PUT(ENABLED) GET(DISABLED) define qalias(APPL.PUT.QUEUE) targq(APPL.QUEUE) PUT(DISABLED) GET(ENABLED)
		B.	define ql(APPL.QUEUE) define qalias(APPL.PUT.QUEUE) targq(APPL.QUEUE) PUT(ENABLED) GET(DISABLED) define qalias(APPL.GET.QUEUE) targq(APPL.QUEUE) PUT(DISABLED) GET(ENABLED)
		C.	define ql(APPL.QUEUE) define qmodel(APPL.PUT.QUEUE) like(APPL.QUEUE) PUT(ENABLED) GET(DISABLED) define qmodel(APPL.GET.QUEUE) like(APPL.QUEUE) PUT(DISABLED) GET(ENABLED)
		D.	define ql(APPL.QUEUE) put(ENABLED) get(ENABLED) alter ql(APPL.QUEUE) process(GetApplication) get(ENABLED) alter ql(APPL.QUEUE) process(PutApplication) put(ENABLED)

To have colourful look of your Unix Files, Directories, Links

2012-03-03T19:07:00.002+02:00

To have colourful look in putty of your Unix Files, Directories, Links

***STILL IN PROCESS ***

Weblogic admin tips & tricks

2012-03-03T19:07:00.001+02:00

IBM MQ series

2012-03-03T19:04:00.003+02:00

Linux Tips

2012-03-03T19:03:00.001+02:00

Unix/Linux Tips ( Solaris , AIX , HP-UX , RedHat)

2011-04-26T14:58:00.000+03:00

**** IN PROCESS ***

hostname -i

getip servername