bugpy

Got email password recovery setting notification, and think

2009-12-28T10:29:00.001-08:00

When I logon google email account today, Google mail notified me that I have not set email password recovery options yet.

It recalled my painful experience on password recovery: when I reset yahoo email password a year ago, somehow I can not logon the yahoo mail with either the old one and the new one; Then I tried to use reset password, and realized that I could not remembered my secondary email address to retrieve password, because I set it up 10 years ago. I also could not answer the tricky questions from yahoo mail: when you registered your account, and what is your zip code etc. In addition, the yahoo technical support could not do anything more than what the web provided, then I gave up my yahoo account, which is my primary account for 10 years, since then, I step away from yahoo.

Password recovery quit often happens. When password recovery is needed, the user really expect it work with security and convenience. Traditionally, we use web-based questionnaires. It is good for this application, not so good in the real world. When we have set same answer to the same/similar question on different web sites, the risk of identity fault is increased.
The new ways to deliver password recovery are desired. Google Mail uses secondary email, or SMS text messages as additional options for password recovery.

Notification is also important to get the user update information. the obsoleted information might caused unpredictable inconvenience during the password recovery as I experienced. If yahoo mail sent notification to me and remind me to update my answer to the questionnaires periodically, I might have chance to recovery the password and I might still primarily use yahoo mail .

netapp management port only allows single session

2009-07-09T15:16:00.000-07:00

When an open session with netapp controller management interface, you would not get ping, telnet and ssh to the same session through the network. By disconnecting existing session, I was able to connect it from another location. I assumed that this feature prevent multiple management session on managing same device.

reduce AIX installation time

2009-07-08T16:33:00.001-07:00

by default, it would take 2 hours to install AIX 6.1 BOS by restoring 454 files and 77 addtional files from 4 CDs. it is quite human interactive on this installation procedure. To prevent human involving, and to reduce installation time, many options are avaliable:
1. setup NIM for the iscsi installation, or
2. install minimum set of lpp source.

for the option 2, the installation time would improve to around 1 hour by deselecting graphical software, and system management clients package. the first CD is sufficient to the installation, saving effort on swapping CD.

install AIX 6.1 on IBM PowerVM client partition ( iscsi disk only )

2009-07-08T09:30:00.000-07:00

Would it be nice to have diskless IBM PowerVM client partition by using iscsi disk? The following steps provides guideline.

step 1 : boot from CD

step 2 : select console and keyboard in the BOS installation menu

step3 ; configurat iscsi. without this step, the iscsi disk would not be available for the installation.

iSCSI Configuration -- SW Initiator

Type or select values in entry fields.
Press Enter AFTER making all desired changes.

[Entry Fields]
* Ethernet Interface en0
* IP Address of Ethernet Interface [172.16.8.33]
* Network Mask of Ethernet Interface [255.255.254.0]
* Gateway to iSCSI Target [172.16.8.1]
* iSCSI Target Name [iqn.1992-08.com.netap>
* IP Address of iSCSI Target [172.16.8.49]
* Port Number of iSCSI Target [3260]
* iSCSI Initiator Name [iqn.2009-03.net.junip>

you should get hdisk configured in the result window, as shown in the following

172.16.8.1 host 172.16.8.49: gateway 172.16.8.1
en0 changed
inet0 changed
iscsi0 changed
sh: /usr/sbin/savebase: not found
mkiscsi: 0321-007 Failed to execute savebase command.
hdisk1 Available N/A

Step 4: choose the recognized iscsi disk to be installed, then start installation.

Is it be nicer to have nim or eznim setup for the iscsi installation ?

Can not load HMC console in I.E.

2009-07-06T11:54:00.000-07:00

I attempted to launch IBM PowerVM HMC ( hardware Management Console, V7R3.4.0.0) with I.E. 6.0 and got message: Please wait while the login page is loading, For more information, click "Help", then the page hang forever.

The rootcause of issue is that there is no Java runtime environment installed in this machine, and I.E. 6.0 did not report the issue correctly.

The workaround solution is to download firefox, and use firefox to access HMC, then firefox prompt the request on installing Java Runtime Environment.

lost blog in blogger.com

2009-06-17T17:28:00.000-07:00

I just lost a blog in blogger.com

1. bugpy: EZ NIM at AIX 6.1

Jun 17, 2009 ... EZ NIM tool in AIX smit menu is indented to be easy for the use. Indeed, it is if you know all the major steps to configure and use NIM. ...
bugpy.blogspot.com/2009/06/ez-nim-at-aix-61.html - 4 hours ago - Similar -

Switching to previous RDP session

2009-06-17T11:29:00.000-07:00

When you reconnect the remote desktop session with RDP, you want to reconnect to the same session you left. However, you might not get the same session you useed in the last time, Since other person used it with same user id, or the system just initial a new session for you.

The obvious and idea solution is to implement active directory to enhance identity management on the machine, so that each user has his/her own unique session, distinguished by one's user id, to avoid session taking over.

Having said that, in case you logon to the remote desktop session with RDP, and the session is not what you left in the last time. luckly, you still can do one more attempt to switch from current session to the previous left-over session:

Select Terminal Service Manger in the Administrative Tasks
You will see all the available session: the session with the green colored user icon is the one you currently login;other sessions are either used by other users or the one you used in the last time. the one you used should be in the "Disconnected" state.
Select one session which is in Disconnected state, with supplying password, you will swtich to the new session.

Configure iscsi disk in AIX

2009-06-12T10:25:00.000-07:00

It may be quite confusing to configure iscsi disk in AIX 6.1 in the very beginning, because you might not get full context on the information center, like http://publib.boulder.ibm.com/infocenter/systems/index.jsp?topic=/com.ibm.aix.commadmn/doc/commadmndita/iscsi_config.htm

then, you might confuse on the following commands, files, and menus:

mkiscsi, lsiscsi, cfgmgr -l
/etc/iscsi/targets
smitty iscsi

finally, you might confuse on how to get parameters from the iSCSI target server, like netapp.

In general, I use smitty iscsi for the configuration, and use commands to verify the configuration due to its simpligicity.

I used netapp FAS2020 for the iSCSI target server, and attempted to configuration iscsi disk in AIX which use a LUN in FAS 2020.

The FAS2020 use 172.,16.1.49:3260, and define by default initiator group, iqn.1992-08.com.netqapp:sn.xxxxxxxxx
within FAS2020, an LUN with an initiator group: iqn.2009-03.net.2web:sn0002
iSCSI protocol device is for the LUN, so

Then here is the steps:

define /etc/iscsi/targets

172.16.1.49 3260 iqn.1992-08.com.netqapp:sn.xxxxxxxxx

smitty iscsi, and choose iSCSI Target Device Parameters in ODM

adding iSCSI Target Device in ODM with file /etc/iscsi/targets

you can verify the setting/change with the lsiscsi command

smitty iscsi, and choose iSCSI Protocol Device

change/Show characteristics of an iSCSI Protocol Device with your LUN initiators.

you can configure the iSCSI disk now with the above setting by using command cfgmgr

cfgmgr -l iscsi0

verify the disk with lspv, you should get new disk

other useful URLs:

http://unix.ittoolbox.com/groups/technical-functional/ibm-aix-l/re-configuring-iscsi-access-with-aix-52-and-ibm-san-1183309

French Doors with Phantom Screen

2009-06-06T18:20:00.001-07:00

I have not opened french doors for months due to bugs.

With Phantom Screen, it is first time to open them without worrying on bugs.

find a kid's book at palo alto public library

2009-06-04T21:29:00.000-07:00

It might be quite difficult to find any recommended book in the public library for the kid in certain age. For instance, recommended for 5-years-old kid. at least I have been struggling in find kid's books, and even hard to find a recommended one.

Recently I found a way to solve this difficulty at Palo Alto public library by using its “ Staff Picks” booklist under "Best Seller List" catalog.

here is the steps:

Use “Best Seller Lists Browse” as search catalog, and
Search for “Staff Picks”
Selects the right pick to shows the list of book titlesStaff Picks - Kids - Help For Parents: Picture Books on Topics of Interest to Parents of Young Children is for 5 year old kid in general.

Inspired by Google Chrome Comic book

2009-06-02T05:41:00.001-07:00

I attended Google IO event last week. Surprisingly, each attendee got a Google phone. I also got a Google Chrome comic book due to earlier registration.

Although I heard story about chrome comic in last year, I overlooked at it in the beginning. While reading it page by page, I found it quite entertaining; I must say that it expressed well on the technical motivation and product advantage. Furthermore, the personnel with different posture made story vivid, thereby the story is stick to my mind. I noticed that most of them liked to cross their arms.

Comparing to bullet points in PowerPoint, Comic is a new way of communicate with young audience: it develops plot or thought process to the audience; it attracts audience' attention by applying wide-angle, or narrow angle for big picture or for details,

the comic is good way to convey the vision and the message, just like cartoon movie from Walt Disney. How about practice it by drawing couple of comic slice on daily life?

COM32 professor

2009-06-02T05:36:00.001-07:00

Once upon a time, there is class com32 at S. campus.

Garbage Can in the school

2009-06-02T04:55:00.000-07:00

Once upon a time, Garbage Can was public used in the school.

1.

2.

3.

Paint Garage Floor ( a failure project )

2009-06-01T20:35:00.000-07:00

Paint Garage Floor ( ~ 550 SF for 2 car garage )

I choose home depot for paint since paint's price is cheaper. total cost is ~150.

Behr Floor cleaner(1 bottle)
Behr Concrete bonding (optional, 2 gallons), and
Behr 1-part epoxy paint ( silver grey, 2 gallons) from home depot

Steps and Hours spent

( 1.5 hour ) Clean up and wash the floor generally. the pressure washer does not work when you use water vault from heating tank, so It takes time and uses more water to wash the floor
( 1 hour ) Clean up floor with Behr Cleaner, 1 bottle cleaner dilutes with 5 gallons of water. the cleaner apply to floor for 10-20 minute
( 0.5 hour ) Rinse the floor
( 2 hours ) Dry up. I use fan to accelerate drying process
( 1.5 hours ) Apply Concrete bonding adherence. Although I used it, I would not use in next time since it is optional; even worse, I ruined part of it by stepping on it ( it is very sticky, DO NOT step directly on it, you can apply 1-part epoxy paint on it, then step on the paint to protect the bonding)
( 8 hours ) Dry up over night.
( 2 hours ) Apply first coat of 1-part epoxy paint. ( please wash the roller and other tools for later use
( 1 hour ) Apply second coat of 1-part epoxy paint. since I found the pain is too THIN in some area, or some paint are cracked
( 3 days ) Dry up before heavy traffic
( so far 2 weeks ) still dry up .....

After having painted walls and the ceiling, you will felt it is easy job to paint the floor, However, any minor mistake will unbearable Since we heavily use floor daily than walls and the ceiling.

Q&A
1. Does contractor do better Job ? maybe, but it will cost ~1000USD.
2. Alternative products? http://ucoatit.com/pgs/main.htm maybe do better job ; I am interested in COSTCO's garage flooring tile, 2 dollars per squre feet, cost ~1000USD.

recover network setting after stop SSL VPN tunnel.

2008-11-27T08:56:00.000-08:00

I use ubuntu in my laptop for the work, and access corporate network with SSL VPN "network connection" . it works well on establishing tunneling, and maintaining connection. the "network connection" creates a tunnel interface tun0-00 with alllocated IP from coportation network, and addes coporates defaut gateway in the routing table along with my home default gateway. It works well .
However, I alway lost internet connection after I signout or stop "network connection". I found that "network connection" not only deleted coporate default gateway entry, but also deleted my home default gateway entry, and caused no default gateway setting.
Big issue? In windows, It may be, however, in ubuntu, I do not think so. To recover all the network setting include default gateway entery, I use a single command : /etc/init.d/networking restart.

New iPod apps

2008-11-07T16:15:00.000-08:00

The Top cool ipod apps I used so far:
1. note2self, I can send my voice greeting to my friends instantly
2. say who, voice recognition app, I got person's phone number by just saying his/her name
3. Pandora, instant music
4. Camera, I sent pic instantly to my friend with email.

cool nmap

2008-11-07T16:05:00.000-08:00

I like to use nmap to scan the servers in the lab

Starting Nmap 4.53 ( http://insecure.org ) at 2008-11-07 16:03 PST
Interesting ports on server( x.x.x.x):
Not shown: 1707 closed ports
PORT STATE SERVICE
21/tcp open ftp
23/tcp open telnet
80/tcp open http
280/tcp open http-mgmt
515/tcp open printer
631/tcp open ipp
9100/tcp open jetdirect

Nmap done: 1 IP address (1 host up) scanned in 10.579 seconds

walkie talkie at home

2008-08-26T21:33:00.000-07:00

living in condo townhouse is not as convenient as living in single family house. in California, the popular single family is one flat floor, and condo townhouse normally is multiple floors. we live in 3 floors condo townhouse. recently we found that it is inconvenient for echo between person when they are in different rooms which in different floor in our case. one time, my wife is calling me for help from 2nd floor bath room, and I barely heard her calling since I am in the kitchen and kitchen fan is on. if I am in 3rd floor study room, she must make it real loud from first floor. sometime, she sent her royal army, i.e. my daughter, to carry message to me, this kind of service is off after 9:00p.m. since my daughter get into sleep. How to solve this inconvenient situation? We thought about walkie talkie. walkie talkie is definitely a good idea; however, today we just found a good alternative way: just carry the cellphone, and put it into speaker mode. Since talk time is free between family, we are enjoy this feature due to free!
I will always carry my cell phone, even in the house.

google IO 2008

2008-05-31T16:16:00.000-07:00

Keynote Speaker - Marissa Mayer

Imagination is a musicale

- Muscle need exercise periodically, so do imagination

- Exercise Imagination and build product prototype: Google book, Google map street view

Numbers, numbers, numbers

- Accuracy for prediction

- Quantity and quality

- Test methodology : Split A/B testing

Urgent drown Important

- 50% of go-live product came from 20% time

- Accuracy for prediction

URLs

You Tube

http://code.google.com/p/hello-youtube/

Open Social Lab

http://code.google.com/apis/opensocial/articles/tutorial/io.html

http://chrisschalk - evangelist web site

http://incubator.apache.org/shindig/

http://sites.google.com/a/opensocial.org/opensocial/ opensocial.org

Map API

http://imagine-it.org/google/articles/mapsapi_codelab.html

http://imagine-it.org/google/articles/mapsapi_codelab2.html

Gears API

http://imagine-it.org/google/articles/gears_codelab.html

use * for string duplication

2007-08-02T11:29:00.000-07:00

I have not used * operation to duplicate string until recently:
valueStr2 "( %s" + ",%s"*(len(dict)-1)+")"

rather than the following c-type implementation
tempL = []
for i in dict.keys():
tempL.append("%s")
valueStr2 = "(" + ",".join(tempL)+")"

restart python to get newly imported module

2007-07-24T11:57:00.000-07:00

newly imported python module by using easy_install can not be imported instantly. you have to restart the python session to import the new module properly
C:\Documents and Settings\mwang>python
Python 2.5.1 (r251:54863, Apr 18 2007, 08:51:08) [MSC v.1310 32 bit (Intel)] on
win32
>>> import MySQLdb
Traceback (most recent call last):
File "", line 1, in
ImportError: No module named MySQLdb
>>> quit
Use quit() or Ctrl-Z plus Return to exit
>>> quit()

C:\Documents and Settings\mwang>python
Python 2.5.1 (r251:54863, Apr 18 2007, 08:51:08) [MSC v.1310 32 bit (Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import MySQLdb
>>>

a quick/good example of using the python/twill

2007-07-13T15:25:00.000-07:00

Today I have a issue on playing http request by using one of load stress testing tool/appliance, and I suspected that the cookie setting in that appliance is not working properly: 2 cookies were set during the requst, and I expected more cookie to be set. I may ask around the developer for cookie information, but it will take time to find the right resource. Fortunately, the following 9 lines code saves my time:

from twill import get_browser
from twill.commands import *
import sys

b = get_browser()
b.go("http://www.example.com/foo")
show()
print "======="
show_cookies()

the results surprisingly tells me that 8 cookies was set after the request. the next thing is to submit an service request to the vendor, provides my expectation with my findings, then expected solution soon.

iter() sample

2007-07-11T13:16:00.000-07:00

the iter() is more like generator, it will return an item every time you call it. here is the different output by using list and iter()

it = range(10)
print it
b = zip(it, it)
print b

it = iter(range(10))
b = zip(it, it)
print b

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
[(0, 0), (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6), (7, 7), (8, 8), (9, 9)]
[(0, 1), (2, 3), (4, 5), (6, 7), (8, 9)]

Twill Tips -Form

2007-07-09T14:10:00.000-07:00

Although we may use Form#, for instance "2" in the fv to update item value, it will be unpredictable if the form order or the number the form is different based on dynamic content, it will be hard to select the right form# for fv function. the good news is that we can use form name rather than form # in fv to specify which form we want to update.

Form name=editPage (#2)
## ## __Name__________________ __Type___ __ID________ __Value__________________
1 cancelURL hidden cancelURL /home/home.jsp
2 retURL hidden retURL /home/home.jsp

fv("editPage", "p19", "12")

checkbox value in Twill

2007-07-09T10:21:00.000-07:00

in the twill, the value of the de-selected box of the item is [], while the value of selected box is ['1']

33 p23 checkbox p23 [] of ['1']
34 p22 checkbox p22 ['1'] of ['1']

the proper way to deselect the default checkbox, for instacne p22, is to
fv("3", "p22", "false").

if we use fv("3", "p22", "") to perform unselected checkbox, you may get the following error message:

File "c:\python25\lib\site-packages\twill-0.9b1-py2.5.egg\twill\utils.py", line 164, in make_boolean
raise Exception("unable to convert '%s' into true/false..." % (value,))
Exception: unable to convert '' into true/false...

You will know that you should use true or false to do select or deselect on the checkbox in twill.

Twill Tips - Links

2007-07-06T17:40:00.000-07:00

Assumed that you have some links on html page, you may want to find and go to the url ended with "/items" by using twill in the python command line environment:

a=showlinks()
for i in a:
if i.url.find("/items") > 0 :
URL_items=i.absolute_url

print "=====", URL_items
b.go(URL_items)

a contains Link Object, which has url and absolute_url attribute. we use url attribute to search for "/items", then access the page by using absolute_url attribute

nice Python

2007-07-03T09:47:00.003-07:00

after polishing my skill set related to c developement, I am comfortable about setup python environment, especially build from source code, in linux enviroment or in windows environment.

opensource gave us an opportunity to have a try, but it is not free. time is value. we can keep trying different opensource, but we may end up with having nothing. I think have 2 solutions to deal with opensource:

1. evaluate the necessary open source.

2. have a build script to speed up open source environment settting.

I likes python easy_install idea, which has similar idea as eclipse update.

WAS CE installation

2007-07-03T09:47:00.001-07:00

http://publib.boulder.ibm.com/wasce/V1.1.0/en/Tasks/Install/Installing.html is a good reference was ce 1.1.0 installation. here is highlight steps

1. extract tar file

2. rpm -Uvh ibm-java2-i386-sdk-5.0-3.0.i386.rpm

3. add the java's installation path to PATH

/opt/ibm/java2-i386-50/bin

4.wasce_setup-1.1.0.1-unix.bin -console

5. update the following environment variable in /root/.bashrc:

export BASEDIR=/opt/wasce
export WASCE_HOME=/opt/wasce
export GERONIMO_HOME=/opt/wasce
export GERONIMO_TMPDIR=/opt/wasce
export GERONIMO_BASE=/opt/wasce

6. . /root/.bashrc to refresh the variables

7. [root@localhost bin]# ./startup.sh
Using GERONIMO_BASE: /opt/wasce
Using GERONIMO_HOME: /opt/wasce
Using GERONIMO_TMPDIR: /opt/wasce
Using JRE_HOME: /opt/ibm/java2-i386-50/jre
Using GERONIMO_OUT: /opt/wasce/var/log/geronimo.out

Geronimo started in background. PID: 11230

8. access to adminsonole: http://9.30.182.181:8080/ system/manager is default password

DB V9 uninstall on AIX

2007-07-03T09:46:00.001-07:00

db2 V9 installation does not show in AIX's lslpp.

root@hvw2 # /V9.1/instance/dasdrop
SQL4410W The DB2 Administration Server is not active.
DBI1070I Program dasdrop completed successfully.

use the following way to remove it
db2stop in any db2instance
remove any db2 instance, otherwise de-installation will fail

/V9.1/install/db2_deinstall -a -l /tmp/db2V9_uninstall.log

python 2.5

2007-07-03T09:45:00.003-07:00

Here is the key steps for Python 2.5 installation on RHEL 4.0 from the http://www.python.org/download/releases/2.5/

the installation location is /usr/local/bin/Python2.5

All others should download either python-2.5.tgz or python-2.5.tar.bz2, the source archive. The tar.bz2 is considerably smaller, so get that one if your system has the appropriate tools to deal with it. Unpack it with tar -zxvf Python-2.5.tgz (or bzcat Python-2.5.tar.bz2 | tar -xf -). Change to the Python-2.5 directory and run the "./configure", "make", "make install" commands to compile and install Python.

Since this is a new version of Python, you may want to use the "make altinstall" command instead of "make install" - this will install a "python2.5" binary without touching the existing "python" binariy

the cpp pacage is on RHEL CD2, glibc and gcc package is on RHEL CD3

RHEL 5.0 Beta XEN installation

2007-07-03T09:45:00.001-07:00

using virt-install to install RHEL4.0 xen guest, the following error message was shown:

Starting install...

ERROR: Invalid NFS location given: [Errno 2] No such file or directory: '/var/lib/xen/xennfs.XfOkIq/images/xen/vmlinuz'

because there is no xen directories under images, since RHEL4.4 is not XEN ready...

according to http://people.redhat.com/riel/RHEL4-Xen-HOWTO , currently we can not use virt-install to install RHEL4.4 , the image should be installed in someway, the apply the virtualization kernel RPM which is available in http://people.redhat.com/~jbaron/rhel4/RPMS.kernel/ .

not sure whether http://people.redhat.com/~jbaron/rhel4/RPMS.kernel/ shows the RPM for RHEL 4.4 guest VM, or RHEL4.4 XEN host.

Convert Cert between PEM and keytool

2007-07-03T09:44:00.003-07:00

I have been using CERT for a while. I mainly knew IBM keyman tool to do the cert related tasks. recently I exposed to opensource environment. I just realized the powerful openssl and the diference between cert format:

apache is using PEM based cert, while others may use java keytool ( for instance WebSphere Application Server Community edition), I was able to porting cert from keytool into apache by following a good web reference doc : http://mark.foster.cc/kb/openssl-keytool.html

1.1 keytool export cert

1.2 use exportPriv to export private key

1.3 use openssl verify command to verify my exported cert

1.4 use openssl s_server -cert server.crt -key private.key -www to test whether the cert and key works. the command will open port 4433 for https accessing

xen and xen0 rpm

2007-07-03T09:44:00.001-07:00

if the kernel-xen version is higher, in order to acommadate lower version of xenU, we can install xen0 alternative.

[root@localhost boot]# rpm -Uvh /wmj/kernel-xen-2.6.19-1.2288.2.4.fc5.i686.rpm
Preparing... ########################################### [100%]
package kernel-xen-2.6.19-1.2911.fc6 (which is newer than kernel-xen-2.6 .19-1.2288.2.4.fc5) is already installed
package kernel-xen-2.6.19-1.2911.6.5.fc6 (which is newer than kernel-xen -2.6.19-1.2288.2.4.fc5) is already installed
[root@localhost boot]# rpm -Uvh /wmj/kernel-xen0-2.6.19-1.2288.2.4.fc5.i686.rpm
Preparing... ########################################### [100%]
1:kernel-xen0 ########################################### [100%]

vmlinuz-2.6.19-1.2288.2.4.fc5xen0

VMware linux guest VM to see shared folder

2007-07-03T09:43:00.001-07:00

It is straightforward for VMware windows guest VM to use shared folder from host, however, it is not the case for the VMware linux guest. Although in VMware linux guest, /mnt/hgfs is default mount point for any shared folder, it was not created by default; the vmware-tools also not installed by default. without these 2 elements, we are not able to use shared folder feature in VMware linux guest, the VMware workstation user guide did not document it. here is my summary of action based on VMTN's discussion threads:

1. install VMware-tools

by attach linux.iso and click ' install vmware tools' in the VMWare menu/ VM tab. you will get VMware-tools icon on your Linux guest VM GUI. you will be able to install RPM.

2. mkdir /mount/hgfs

the default mount point for shared folder.

3. if you run /etc/init.d/vmware-tools restart, you may get warning on ' your VMware tools was not configured properly'
1. run /usr/bin/vmware-tools-configure.pl, please run it in local machine, rather remote session. the configure script will detect it for you.
2. after the configuration, you may use /usr/bin/vmware-toolbox to invoke VMware Toolbox for audio, shrink etc feature.
3. at this moment, the NIC eth0 is disconnected. in order to use vmxnet driver, run the following commands:
/etc/init.d/network stop
rmmod pcnet32
rmmod vmxnet
depmod -a
modprobe vmxnet
/etc/init.d/network start
4. the /mnt/hfgs got shared folder.

a unix shell test

2007-07-03T09:42:00.002-07:00

if I have the following entries in the /root/.bashrc:

export PATH=/opt/ibm/java2-i386-50/bin;$PATH:/wmj

then run . /root/.bashrc
-bash: /opt/ibm/java2-i386-50/bin:/wmj: No such file or directory

why I will got the following error

[root@localhost bin]# ls -al /opt/IBM/WPS/profiles/ccmdb/bin
-bash: ls: command not found

Answer: the typerr ; before the $PATH should be changed to : under unix to delimiter each individual path. the typerr cause the system environment $PATH to be /opt/ibm/java2-i386-50/bin, since ls is not under /opt/ibm/java2-i386-50/bin, the error is raised.

ITSM/ISM 1.1.1 CTGWE6038E

2007-07-03T09:42:00.001-07:00

When you attempt to create a RFC, you may have the following issue

CTGWE6038E
The error "com.ibm.tivoli.prism.rm.util.ex.ChangeException" with message "com.ibm.tivoli.prism.rm.util.ex.ChangeException: com.ibm.tivoli.prism.rm.util.ex.RMCMDBEJBException: CTGCM1002E An attempt was made to send a request to the CDB EAR application, but the attempt failed." was received unexpectedly.

the root cause is that CCMDB does not have SSL cert info of CMDB, copying the jssecacerts.cert to /cmdb_data/etc, and re-create RFC.

XAMPP, easyElcipse, Ruby

2007-07-03T09:40:00.000-07:00

recently I found the convenience of XAMPP. especially in linux platform

1. un-tar XAMPP tarball in /opt/lampp

2. un-tar esyEclipse 1.2.1.1 for LAMPP

3. install ruby rail on XAMPP by using axlegrease 0.6.2

after the installation, you should be able to sess http://hostname/emaildir the ruby sample application.

Yum Package

2007-07-03T09:39:00.000-07:00

in order to install YUM

rpm -Uvh yum-2.6.1-1.noarch.rpm python-elementtree-1.2.6-7.el4.rf.i386.rpm python-sqlite-1.0.1-1.2.el4.rf.i386.rpm python-urlgrabber-2.9.7-1.2.el4.rf.noarch.rpm sqlite-2.8.16-1.2.el4.rf.i386.rpm
the http://www.freevps.com/download/yum/RHEL4/ contains the necessary files, however, yum official website and redhat does not have rpms.

PyOpenSSL installation

2007-07-03T09:37:00.002-07:00

although PyOpenSSL install file mentioned the windows modules installation, it assumed that Visual Studio 2003 has been installed. in reality, we do not have VS 2003 installed, sometime we also does not Cygwin installed, does it mean that we can not install pyOpenSSL? the answer is obvious No. It will take a while to find out the why, since there is not such answer on the web.

first step: get packages ( my python version is 2.5)

download pyOpenSSL-0.6

install windows OpenSSL, default folder is c:\OpenSSL

second step: build ( I found the following content is very useful for the issue (http://webcleaner.sourceforge.net/install.html)

Change to the directory where you installed the Win32OpenSSL software into (for example c:\OpenSSL). Now fix the library names for the mingw compiler: c:\OpenSSL> cd lib\MinGW && move ssleay32.a libssleay32.a && move ssleay32.def libssleay32.def

Extract pyOpenSSL-0.6.tar.gz and change into the generated directory (for example c:\pyOpenSSL-0.6). Open a text editor for setup.py and replace 'libeay32' with 'eay32'.

Then run: c:\pyOpenSSL-0.6> python setup.py build_ext -c mingw32 -I c:\OpenSSL\include -L c:\OpenSSL\lib\MinGW

last step: install ( if you do not skil-build, since -c mingw32 will not pass from install to build, the installation will failure regardless whether build success or not)

C:\projects\Python\pyOpenSSL-0.6\pyOpenSSL-0.6>python setup.py build -c mingw32
running build
running build_py
running build_ext

C:\projects\Python\pyOpenSSL-0.6\pyOpenSSL-0.6>python setup.py install --skip-build
running install
running install_lib
creating c:\python25\Lib\site-packages\OpenSSL
copying build\lib.win32-2.5\OpenSSL\crypto.pyd -> c:\python25\Lib\site-packages\
OpenSSL
copying build\lib.win32-2.5\OpenSSL\rand.pyd -> c:\python25\Lib\site-packages\Op
enSSL
copying build\lib.win32-2.5\OpenSSL\SSL.pyd -> c:\python25\Lib\site-packages\Ope
nSSL
copying build\lib.win32-2.5\OpenSSL\tsafe.py -> c:\python25\Lib\site-packages\Op
enSSL
copying build\lib.win32-2.5\OpenSSL\version.py -> c:\python25\Lib\site-packages\
OpenSSL
copying build\lib.win32-2.5\OpenSSL\__init__.py -> c:\python25\Lib\site-packages
\OpenSSL
byte-compiling c:\python25\Lib\site-packages\OpenSSL\tsafe.py to tsafe.pyc
byte-compiling c:\python25\Lib\site-packages\OpenSSL\version.py to version.pyc
byte-compiling c:\python25\Lib\site-packages\OpenSSL\__init__.py to __init__.pyc

running install_egg_info
Writing c:\python25\Lib\site-packages\pyOpenSSL-0.6-py2.5.egg-info

Type "help", "copyright", "credits" or "license" for more information.
>>> import OpenSSL
>>>

python ValueError: universal newline mode 'U'

2007-07-03T09:37:00.001-07:00

print open(featurefile, 'wU').writelines()
ValueError: universal newline mode can only be used with modes starting with 'r'

take out U will solve the issue.

python tip

2007-07-02T23:06:00.000-07:00

Assumed that a sample.txt file contains multiple headline, which are same as the line0. In order to keep line0 as the only head line, and delete the rest line in the middle of file, we have the following 2 implementation:

Trivial:

ls = open("sample.txt").readlines()
k = ls[0]
for l in ls[1:] :
if l.find("File") < 0:
k += l
then k contains what I want

Python way :

from operator import add
filter_line0 = lambda line0, lines: reduce ( add, filter ( lambda line : line.find(line0) < 0, lines ))
k = ls[0]+filter_line0(ls[0], ls[1:])

The trivial way is easy to understand, but hard to reuse. in order to reuse these code, we have to copy block of code or define these code as a function, However, the python way express intuitive way as one line function definition, then you can use it anywhere.