Mister Disagree

"Be the change you wanna see in the world" - Michael Scofield

PartedMagic..

LiveCD Operating System produce by Linux..
OS yg agak ringan hingga cuma running guna RAM..nama pon liveCD kan..
Famous features: GParted & CloneZilla..



i) CloneZilla


2) GParted



*To be continue...

17.12.2010@last friday was my last day as a student..
selamat tinggal alam student..
slamat datang alam kerjaya..
bukan 2 alam arahan dr. rambut cendawan ya..
agak murah rezeki ku..
2 bulan LI teros dpt keje..
kire cukup bulan ni da masok 4 bulan keje..
but still under probation..
better than dok umah xde keje..


:: Day 1 ::

- continue with the same task as last week but this one for VAS department
- few problem came up:
1) cannot login window after setup the domain, b4 this the dont have to key in any passwork to enter the window.
solution: set the username "MIS", leave the password empty and te domain is attached with "this computer".
2) window 7 cannot be able to support semantec antivirus 11.0.2000, so just let them use microsoft security essential as the backup antivirus.
- open my own RHB account during lunch
- after lunch, continue with the same job


:: Day 2 ::

- 9 am - 11 am: continue with MIS chackup task
- 11 am - 5 pm: explore HP ProCurve 2810 switch
* terminal configuration:
1)Connection = COM4 (depends on USB attachment)
2)Bit per second = 115200
3)Data bit = 8
4)parity = none
5)Stop bit = 1
6)Flow control = Xon/Xoff

- 5 pm - 7 pm: install window server 2008, Domain Name Services (DNS), Active Directory (AD), Network Access Protection (NAP)

Company: Unified Communication Holdings Limited Company

:: Day 1 ::

- Breafing by executive HR, mis sharina sulaiman
- Got my own desk and laptop (Dell)
- Breafing with the supervisor, mr. loo about company network architecture, problems
- got 1st task!!!
1) study about installation and configuration of Network Access Protection (NAP) in window server 2008. the implementation will be done after we got the device ready.
2) testing the admin, system/ power-on and HDD password on BIOS for all three type of laptop registered under the company (Dell, HP, IBM).

- mr. khairul (MIS admin) shows all the network device inside the server room (routers, switches, servers), also with its function. it was nice to see him.


:: Day 2 ::

- report to my supervisor the task that have been done.
- start implementing MIS services on each laptop under company propietry.
- thing that been checked:
1) join domain.(if not join, then it will be configured under unifiedcomms.com.my)
2) semantec antivirus.(if not installed yet, dwnld from serverand install it rigth away)
3) write down each f laptop model number and asset number.
4) setup admin and system/power-on password on bios.

* today's completeness = 16/113

- study lansweeper documentation before start play with it soon.


:: Day 3 ::

- Continue yesteday task.
- got complain from some user that semantec antivirus alway eat lot of memory during scanning state which they didn't even start.
- solve the problem by modify some semantec antivirus manager located on the server farm with mr. khairul. then right after some configuration, we test with a few antivirus client on users laptop and it working perfectly.mission accomplished!!!..
- start

:: Day 4 ::

- continue with the day 2 task (check some domain, antivirus,bios password, bla..bla..bla)
* total completeness = 34/113
* problem came up:
1) cannot even using google chrome after installed the semantec antivirus
2) HDD password frozen (need to update bios???)
3) window 7 cannot support with current version of semantec antivirus (how come???)
4) pirate OS (aiyyooo..ada jugak ka)
5) some of laptop (Dell) asking 4 HDD password (sian tuan pnyer laptop..)


:: Day 5 ::

- continue with the same task
- install sun wirewall on server for testing

sesi pencarian tmpt li start sejak bln mei lps
apply gne tenet, by hand tp sumer hampeh xde respon.
then tetibe dpt email jobstreet wat job fair kat PWTC.
ape slh nyer try test tgok..

hari beganti hari, minit beganti minit..
cari punyer cari punyer cari dpt la 4 ke 5 cmpny..
bleh thn offer2 dorg..
time pling best ble tgok reaksi dorg ble tgok resume..
pnuh ngn certificate especially CCNA proffesional..

then next week nyer bru la dpt bnyk call, email..
klia, mimos, neitonboard, redtone, unified n mcm2..
pk pnyer pk..i made my decision..
Unified Communication at seksyen 22, s.alam..
sori yg lain coz offer dr unified lg beshh..

mggu dpn nyer g la seksyen 22 (batu 3)..
jmpe mr. loo n manager hr..
borak2, bincang2..
confirm li sane..

company: Inified Communication
website: www.unifiedcomms.com
waktu keje: 9am-6pm (ahad pon kdng keje gak)
pakaian: "cincai2..no slipper..no shorts.. n no naked"
elaun: rm500 - 900
start li: 5/7/2010
environment: lab, office, kadang kne g customer site solve problem..
keje: cmpny ni provide service to front-end dr malaysia telecommunication campny (celcom,digi..) ke luar negara (south east asia, far east, midle east, africa,).. tp stakat li ni just wat keje2 network dlm cmpny je la mcm maintain server, wat network service n mcm2 lg.. mostly dorg gune juniper n 3com tp still gne cisco utk service/protocol yg high level.. tp keje agak mencabar n bnyk bnde baru kne blaja..ade tanyer gak skrng tgh ade projek pe..then die ckp tgh wat VLAN protocol..integrate vlan ngn active directory gune 3com n juniper..WTF!!! xpenah t'pk pon. nway intersting, menarik n mencabar.

umah sewa da dpt kat kota menuning..
around 10 - 15 dr office..
stadium dkt, bleh tgok selangor main lps nie..
skrng nie...
tggl tggu psm 2 abih..
selamat tggl melaka..
time konvo ngn honeymo0n bru dtg sini lg...

Project title: Performance Comparison Between IPv4 and IPv6 over WLAN Technology
Scope: more focus on ad hoc network architecture (multi-hop ad hoc network)

4 type of environment:
1) Mobile IPv4 TCP
2) Mobile IPv6 TCP
3) Mobile IPv4 UDP
4) Mobile IPv6 UDP

Comparison crateria:
1) Average delay
2) Average throughput
3) Speed
4) Packet loss rate

Language use:
1) TCL language - for generate network environment in NS2
2) AWK language - for manipulate tracefile to display network statistic

overall process:


logical design:

Figure 1: logical design of MIPv4TCP, MIPv6TCP, MIPv4UDP,MIPv6UDP

physical design:
Figure 1: Physical design of MIPv4TCP, MIPv6TCP, MIPv4UDP,MIPv6UDP


SAMPLE PROCESS (MIPv4TCP)

1) install NS-2 (*please view entry posted before)
2) Create TCL script to create the network environment
Figure 3: MIPv4TCP's tcl script

3) Compile the script
i- Log in as root
ii- Enter the folder contain tcl script file (MIPv4TCP.tcl)
iii- Compile the script

*By compiling the MIPv4TCP.tcl, 2 type of file will be directly created which are MIPv4TCP.nam and MIPv4TCP.tr
* File .tr (tracefile) is a file contain the entire network behavior during the simulation process.
* File .nam (network animation) is a file contain 2D animation that display the network simulation process.

Figure 4: compile the script

Figure 5: Folder container b4 and after compile all 4 environment


Figure 6: MIPv4TCP.nam

Figure 7: MIPv4TCP.tr

4) Create awk script to measure and calculate network statistic
i. save the script as "all_parameter.awk"
ii. recommend to save within the same folder contain the trace file

Figure 8: all_parameter.awk script

5) Run the awk script by invoke the trace file that want to be measure
i. Via terminal, enter the directory contain "all_parameter.awk" and "MIPv4TCP.tr"
ii. command: awk -f all_parameter.awk MIPv4TCP.tr
iii. Result as shown below will apppear.

Figure 9: MIPv4TCP statistic

6) Compare the difference between all 4 environment
7) Make a decision which IP address format is the best approach in wireless environment for TCP and UDP.

*Project enhancement for PSM 2
i. Search 3 journal that discuss about project methedology, then state why do i choose my current methedology
ii. Search 3 journals that discuss about awk and pearl language, then state why do i choose my current language
iii. Enhance IPv6 script
iv. Add more comparison crateria (Handover delay, jitter)
v. Implement graph to illustrate the comparison result

Step 1: Using the power switch, turn off the router and then turn it back on.
Step 2: Press Break on the terminal keyboard within 60 seconds of the power-up to put the router into ROMMON.
*Note:
HyperTerminal(Windows 2000) - Ctrl+Break
Terminal(Windows) - Break / Ctrl+Break

Step 3: Type confreg 0x2142 at the rommon 1> prompt to boot from Flash without loading the configuration.
Step 4: Type reset at the rommon 2> reset
*note: The router reboots but ignores its saved configuration.

Step 5: Type no after each setup question or press Ctrl-C to skip the initial setup procedure.

Step 6: Type enable at the Router> enable ...You'll be in enable mode and see the
Step 7: Router#copy startup-config running-config
Step 8: Router#configure terminal --> hostname(config)#.
Step 9: hostname(config)#enable secret cisco
Step 10: enter interface, type "no shutdown"..then view result using "show ip int br"
Step 11: Type config-register 0x2102
Step 12: Press Ctrl-z or end to leave the configuration mode.The prompt is now hostname#.
Step 13: Router#copy startup-config running-config

switch password recovery digunakan bila kite dapat 1 switch yg kite xtau password yg da di set pada switch 2.. tp pada masa sama kite xnak buang configuration2 lain yg jugak d set dlm config.text pada switch.. so password recovery akan wat kite by pass the password supaya kite boleh wat backup config.text ke config.old (actually boleh rename jd name ape2 pon) sebelum kite boot switch (akan delete file config.text) then reload balik file config.old ke config.text supaya kite boleh tulis ape2 configuration (ubah password)..


step 1. off switch
step 2. on switch but at the same time, push MODE button for a while

* note: output just like below will be display when u done step 2 correctly
system software:
flash_init
load_helper
boot
switch:

step 3: switch: flash_init
step 4: switch: flash_helper (*so the switch will recognize the following command)
step 5: switch: flash: or dir flash: (*to view file stored in flash)

* note: generally u will find config.text (configuration file which also contain current password conf)

step 6: switch: rename flash: config.text flash: config.old (*create backup file)
step 7: switch: boot
step 8: Enter "n" at the prompt to start the Setup program
* note: switch will directly enter the switch configuration

step 9: Switch>enable (*to enter user mode)
step 10: Switch#rename flash:config.old flash:config.text
step 11: Switch#copy flash:config.text system:running-config
Destination filename [running-config]?
Switch#
step 12: Switch#enable secret class
step 13: Switch#enable password class
step 14: Switch#end
step 15: Switch#write memory
step 16: Switch#reload

*da boleh gune switch dgn password yg kite da set disamping configuration lain dlm switch still remain the same..try la

STEP 1

From terminal login as super user and do the following.(internet must also be connected in order to install the package dependencies.

yum install autoconf
yum install automake
yum install gcc-c++
yum install libX11-devel
yum install xorg-x11-proto-devel
yum install libXt-devel
And for nam installation (optional):
yum install libXmu-devel

STEP 2

From terminal go to the folder where the ns-allinone patch is placed and type the following to extract
$ tar -xzf ns-allinone-2.31.tar.gz
$ cd ns-allinone-2.29
$. /install

STEP 3

Now go to /etc folder and type

gedit ~/.bashrc

Add the following lines to the end of it. Remember replace "/your/path" by something like "/home/kazim". And accordingly also change the version numbers. This is for ns 2.31.

# LD_LIBRARY_PATH
OTCL_LIB=/your/path/ns-allinone-2.31/otcl-1.13
NS2_LIB=/your/path/ns-allinone-2.31/lib
X11_LIB=/usr/X11R6/lib
USR_LOCAL_LIB=/usr/local/lib
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$OTCL_LIB:$NS2_LIB:$X11_LIB:$USR_LOCAL_LIB

# TCL_LIBRARY
TCL_LIB=/your/path/ns-allinone-2.31/tcl8.4.14/library
USR_LIB=/usr/lib
export TCL_LIBRARY=$TCL_LIB:$USR_LIB

# PATH
XGRAPH=/your/path/ns-allinone-2.31/bin:/your/path/ns-allinone-2.31/tcl8.4.14/unix:/your/path/ns-allinone-2.31/tk8.4.14/unix
NS=/your/path/ns-allinone-2.31/ns-2.31/
NAM=/your/path/ns-allinone-2.31/nam-1.13/
PATH=$PATH:$XGRAPH:$NS:$NAM

Let it take effect immediately

source ~/.bashrc

NS-2
stand 4 Network simulator version 2...
develop utk run kat linux environment...
tp skrng da bleh implement kat OS lain...
even windows...
NS-2 gune language tcl...
never heard before...
tp nk sng bleh gne NS-3 yg just gne c++ je...
tp 2 cter lain...
NS-2 is totally coding..
dr nk create node sampai nk create whole network environment...
node,channel,link,protocol,bandwidth, bla bla bla...
compile bru display similation...
sbnr nyer after compile...
2 bnde akan terhasil...
NAM & trace file...
NAM...
NS-2 integrate skali ngn NAM...
NAM stand 4 network animator...
rusult yg terhasil akan di simulate gune NAM..
baru la sdp mate memandang...

trace file...
trace file gune utk analyze result yg terhasil...
tp bkn bleh bace tros dr trace file...
coz trace file cme akan papar result yg blom d proses lg..
means raw data la...
utk dpt result yg lbh detail n spesifik...
perlu run gune mathlab or xpss software...
baru sng nak analyze...
by the way...
bkn mudah nk install NS-2...
lg2 kat linux...
ni website yg tnjuk full step utk install NS-2
renung2 kan..da selamat beramal....

actually 2 tajuk PSM..
tgok tajok pon da naik bulu tengkok..
tp still under control...
nasib wat simulation je...
tapi...
simulation gne NS-2...
install kat fedora 9...
seems like complicated coz almost coding...
gune tcl language...
hmmm...
another new simulation software gonna be xplore
n another new language gonna be xplore...
another new knowledge gain...
quite interesting n pening...
credit to en. najwan sebab sudi jd guru sy...
hope sumer bejalan lancar...

CCNA stands 4 Cisco Certified Network Associate..