Learning By The Way

XL GPRS/MMS

dveewee — Sun, 13 Apr 2008 17:11:39 +0000

Over The Air (OTA)

Pelanggan yang ponselnya mendukung layanan OTA (Over The Air) dapat melakukan aktivasi layanan GPRS/MMS melalui setting OTA sebagai berikut:

Ketik SMS dengan isi : GPRS[spasi][spasi] Kirim ke 9667
Ketik SMS dengan isi : MMS[spasi][spasi] Kirin ke 9667

Pengguna akan menerima balasan SMS berisi setting parameter. Proses di atas juga akan mengaktifkan GPRS/MMS secara otomatis.

Jenis ponsel yang mendukung layanan OTA adalah Nokia, Sony Ericsson, Siemens, Motorola, Samsung dan LG. Lihat daftar tipe ponsel yang dapat memanfaatkan GPRS/MMS di sini.

GPRS Manual Parameter

Connection Name: XL-GPRS
Data Bearer: GPRS
Access Point Name: www.xlgprs.net
Username: xlgprs
Prompt Password: No
Password: proxl
Authentication: Normal
Homepage: http://wap.xl.co.id
Connection Security: Off
Session Mode: Permanent
IP Address: Automatic
Proxy Server Address: 202.152.240.050
Proxy Port Number: 8080

MMS Manual Parameter

Connection Name: XL-MMS
Data Bearer: GPRS
Access Point Name: www.xlmms.net
Username: xlgprs
Prompt Password: No
Password: proxl
Authentication: Normal
Homepage: http://mmc.xl.net.id/servlets/mms
Connection Security: Off
Session Mode: Permanent
IP Address: Automatic
Proxy Server Address: 202.152.240.050
Proxy Port Number: 8080

Konfigurasi Hotspot dengan Mikrotik

dveewee — Thu, 10 Jan 2008 20:39:52 +0000

Begitu mudahnya untuk menggunakan mikrotik. Konsep networking yang sudah anda pahami akan sangat mudah di implementasikan di operating sistem router yang berbasis kepada linux kernel ini. Kali ini kita akan praktekan sebuah judul yang banyak di nanti orang banyak. Judul yang di ambil adalah, membuat hotspot dan user manager dengan router yang sama.

Langkah pertama adalah sbb :

1. Buat sebuah server Radius
/ radius add service=hotspot address=127.0.0.1 secret=123456

2. Buat profile dan set profile tersebut untuk menggunakan Radius Server
/ ip hotspot profile set hsprof1 use-radius=yes

3. Membuat scriber
/ tool user-manager customer add login="MikroTik" password="qwerty" permissions=owner

4. Tambahkan Router kita dalam hal ini localhost.
/ tool user-manager router add subscriber=MikroTik ip-address=127.0.0.1 shared-secret=123456

5. Lalu silahkan browser ke http://iprouteranda/userman

Cisco Router Configuration Tutorial

dveewee — Thu, 10 Jan 2008 20:27:38 +0000

Cisco Inter-network Operating System:
Cisco IOS Modes of Operation
The Cisco IOS software provides access to several different command modes.
Each command mode provides a different group of related commands.
For security purposes, the Cisco IOS software provides two levels of access to
commands: user and privileged. The unprivileged user mode is called user EXEC
mode. The privileged mode is called privileged EXEC mode and requires a
password. The commands available in user EXEC mode are a subset of the
commands available in privileged EXEC mode.
The following table describes some of the most commonly used modes, how to
enter the modes, and the resulting prompts. The prompt helps you identify which
mode you are in and, therefore, which commands are available to you
Mode of
Operation
Usage How to Enter the
Mode
Prompt
User EXEC Change terminal
settings on a temporary
basis, perform basic
tests, and list system
information.
First level accessed. Router>
Privileged EXEC System administration,
set operating
parameters.
From user EXEC
mode, enter enable
password command
Router#
Global Config Modify configuration that
affect the system as a
whole.
From privileged
EXEC, enter
configure terminal.
Router(config)#
Interface Config Modify the operation of
an interface.
From global mode,
enter interface type
number.
Router(config-if)#
Setup Create the initial
configuration.
From privileged EXEC
mode, enter
command setup.
Prompted dialog
User EXEC Mode:
When you are connected to the router, you are started in user EXEC mode. The
user EXEC commands are a subset of the privileged EXEC commands.
Privileged EXEC Mode:
Privileged commands include the following:
• Configure – Changes the software configuration.
• Debug – Display process and hardware event messages.
• Setup – Enter configuration information at the prompts.
Enter the command disable to exit from the privileged EXEC mode and return to
user EXEC mode.
Configuration Mode
Configuration mode has a set of submodes that you use for modifying interface
settings, routing protocol settings, line settings, and so forth. Use caution with
configuration mode because all changes you enter take effect immediately.
To enter configuration mode, enter the command configure terminal and exit by
pressing Ctrl-Z.
Note:
Almost every configuration command also has a no form. In general, use the no
form to disable a feature or function. Use the command without the keyword no
to re-enable a disabled feature or to enable a feature that is disabled by default.
For example, IP routing is enabled by default. To disable IP routing, enter the no
ip routing command and enter ip routing to re-enable it.
Getting Help
In any command mode, you can get a list of available commands by entering a
question mark (?).
Router>?
To obtain a list of commands that begin with a particular character sequence,
type in those characters followed immediately by the question mark (?).
Router#co?
configure connect copy
To list keywords or arguments, enter a question mark in place of a keyword or
argument. Include a space before the question mark.
Router#configure ?
memory Configure from NV memory
network Configure from a TFTP network host
terminal Configure from the terminal
You can also abbreviate commands and keywords by entering just enough
characters to make the command unique from other commands. For example,
you can abbreviate the show command to sh.
Configuration Files
Any time you make changes to the router configuration, you must save the
changes to memory because if you do not they will be lost if there is a system
reload or power outage. There are two types of configuration files: the running
(current operating) configuration and the startup configuration.
Use the following privileged mode commands to work with configuration files.
• configure terminal – modify the running configuration manually
from the terminal.
• show running-config – display the running configuration.
• show startup-config – display the startup configuration.
• copy running-config startup-config – copy the running
configuration to the startup configuration.
• copy startup-config running-config – copy the startup
configuration to the running configuration.
• erase startup-config – erase the startup-configuration in NVRAM.
• copy tftp running-config – load a configuration file stored on a
Trivial File Transfer Protocol (TFTP) server into the running
configuration.
• copy running-config tftp – store the running configuration on a
TFTP server.
IP Address Configuration
Take the following steps to configure the IP address of an interface.
Step 1: Enter privileged EXEC mode:
Router>enable password
Step 2: Enter the configure terminal command to enter global configuration
mode.
Router#config terminal
Step 3: Enter the interface type slot/port (for Cisco 7000 series) or interface
type port (for Cisco 2500 series) to enter the interface configuration mode.
Example:
Router (config)#interface ethernet 0/1
Step 4: Enter the IP address and subnet mask of the interface using the ip
address ipaddress subnetmask command.
Example,
Router (config-if)#ip address 192.168.10.1 255.255.255.0
Step 5: Exit the configuration mode by pressing Ctrl-Z
Router(config-if)#[Ctrl-Z]
Routing Protocol Configuration
Routing Information Protocol (RIP)
Step 1: Enter privileged EXEC mode:
Router>enable password
Step 2: Enter the configure terminal command to enter global configuration
mode.
Router#config terminal
Step 3: Enter the router rip command
Router(config)#router rip
Step 4: Add the network number to use RIP and repeat this step for all the
numbers.
Router(config-router)#network network-number
Example: Router(config-router)#network 192.168.10.0
Note: To turn off RIP, use the no router rip command.
Router(config)#no router rip
Other useful commands
• Specify a RIP Version
By default, the software receives RIP version 1 and version 2 packets, but sends
only version 1 packets. To control which RIP version an interface sends, use one
of the following commands in interface configuration mode:
Command Purpose
ip rip send version 1 Configure an interface to send only RIP
version 1 packets.
ip rip send version 2 Configure an interface to send only RIP
version 2 packets.
ip rip send version 1
2
Configure an interface to send only RIP
version 1 and version 2 packets.
To control how packets received from an interface are processed, use one of the
following commands:
Command Purpose
ip rip receive version 1 Configure an interface to accept only
RIP version 1 packets.
ip rip receive version 2 Configure an interface to accept only
RIP version 2 packets
ip rip receive version 1
2
Configure an interface to accept only
RIP version 1 or 2 packets.
• Enable or Disable Split Horizon
Use one of the following commands in interface configuration mode:
Command Purpose
ip split-horizon Enable split horizon.
no ip split-horizon Disable split horizon.
Open Shortest Path First (OSPF)
Step 1: Enter privileged EXEC mode:
Router>enable password
Step 2: Enter the configure terminal command to enter global configuration
mode.
Router#config terminal
Step 3: Enter the router ospf command and follow by the process-id.
Router(config)#router ospf process-id
Pick the process-id which is not being used. To determine what ids
are being used, issue the show process command.
Router(config)#show process
Step 4: Add the network number, mask and area-id
Router(config-router)#network network-number mask area area-id
The network-number identifies the network using OSPF. The mask tells which
bits to use from the network-number, and the area-id is used for determining
areas in an OSPF configuration.
Example:
Router(config-router)#network 192.168.10.0 255.255.255.0 area
0.0.0.0
Repeat this step for all the network numbers.
To turn off OSPF, use the following command.
Router(config)#no router ospf process-id
Other useful commands
• Configure OSPF Interface Parameters
You are not required to alter any of these parameters, but some interface
parameters must be consistent across all routers in an attached network.
In interface configuration mode, specify any of the following:
Command Purpose
ip ospf cost cost Explicitly specify the cost of sending a
packet on an OSPF interface.
ip ospf retransmit-interval
seconds
Specify the number of seconds between
link state advertisement retransmissions
for adjacencies belonging to an OSPF
interface.
ip ospf transmit-delay
seconds
Set the estimated number of seconds it
takes to transmit a link state update
packet on an OSPF interface.
ip ospf priority number Set router priority to help determine the
OSPF designated router for a network.
ip ospf hello-interval
seconds
Specify the length of time, in seconds,
between the hello packets that a router
sends on an OSPF interface.
ip ospf dead-interval
seconds
Set the number of seconds that a
router’s hello packets must not have
been seen before its neighbors declare
the OSPF router down.
ip ospf authentication-key
password
Assign a specific password to be used
by neighboring OSPF routers on a
network segment that is using OSPF’s
simple password authentication.
Interior Gateway Routing Protocol (IGRP)
• Create the IGRP Routing Process
To create the IGRP routing process, use the following required commands
starting in global configuration mode.
Step Command Purpose
1 router igrp
autonomous-system
Enable an IGRP routing process, which
place you in router configuration mode.
2 network networknumber
Associate networks with an IGRP
routing process.
• Disable Holddown
The holddown mechanism is used to help avoid routing loop in the network, but
has the effect of increasing the topology convergence time.
To disable holddowns with IGRP, use the following command in router
configuration mode. All devices in an IGRP autonomous system must be
consistent in their use of holddowns.
Command Purpose
No metric holddown Disable the IGRP holddown
period.
• Enforce a Maximum Network Diameter
Define a maximum diameter to the IGRP network. Routes whose hop counts
exceed this diameter are not advertised. The default maximum diameter is 100
hops. The maximum diameter is 255 hops.
Use the following command in router configuration mode.
Command Purpose
metric maximum-hops
hops
Configure the maximum network
diameter.
• To turn off IGRP, use the following command.
Router(config)#no router igrp autonomous-system
Border Gateway Protocol (BGP)
• Enable BGP Routing
Use the following commands in global configuration mode.
Step Command Purpose
1 router bgp autonomoussystem
Enable a BGP routing
process, which places you in
router configuration mode.
2 network network-number
[mask network-mask] [routemap
route-map-name]
Flag a network as local to this
autonomous system and enter
it to the BGP table.
• Configure BGP Neighbors
BGP must completely understand the relationships it has with its neighbors.
Command Purpose
neighbor {ip-address | peergroup-
name} remote-as number
Specify a BGP neighbor.
• Reset BGP Connections
Use either of the following commands in EXEC mode to reset BGP connections
Command Purpose
clear ip bgp address Reset a particular BGP
connection.
clear ip bgp * Reset all BGP connections.
• To turn off BGP, use the following command.
Router(config)#no router bgp autonomous-system

DHCP SERVER dengan OS Linux

dveewee — Fri, 28 Dec 2007 01:43:47 +0000

Pengertian dasar

DHCP (Dynamic Configuration Protocol) adalah layanan yang secara otomatis memberikan nomor IP kepada komputer yang memintanya. Komputer yang memberikan nomor IP disebut sebagai DHCP server, sedangkan komputer yang meminta nomor IP disebut sebagai DHCP Client. Dengan demikian administrator tidak perlu lagi harus memberikan nomor IP secara manual pada saat konfigurasi TCP/IP, tapi cukup dengan memberikan referensi kepada DHCP Server.
Pada saat kedua DHCP client dihidupkan , maka komputer tersebut melakukan request ke DHCP-Server untuk mendapatkan nomor IP. DHCP menjawab dengan memberikan nomor IP yang ada di database DHCP. DHCP Server setelah memberikan nomor IP, maka server meminjamkan (lease) nomor IP yang ada ke DHCP-Client dan mencoret nomor IP tersebut dari daftar pool. Nomor IP diberikan bersama dengan subnet mask dan default gateway. Jika tidak ada lagi nomor IP yang dapat diberikan, maka client tidak dapat menginisialisasi TCP/IP, dengan sendirinya tidak dapat tersambung pada jaringan tersebut.
Setelah periode waktu tertentu, maka pemakaian DHCP Client tersebut dinyatakan selesaidan client tidak memperbaharui permintaan kembali, maka nomor IP tersebut dikembalikan kepada DHCP Server, dan server dapat memberikan nomor IP tersebut kepada Client yang membutuhkan. Lama periode ini dapat ditentukan dalam menit, jam, bulan atau selamanya. Jangka waktu disebut leased period.
Cara Kerja DHCP :
DHCP menggunakan 4 tahapan proses untuk memberikan konfigurasi nomor IP. (Jika Clietn punya NIC Card lebih dari satu dan perlu no IP lebih dari 1 maka proses DHCP dijalankan untuk setiap adaptor secara sendiri-sendiri) :
1. IP Least Request
Client meminta nomor IP ke server (Broadcast mencari DHCP server).
2. IP Least Offer
DHCP server (bisa satu atau lebih server jika memang ada 2 atau lebih DHCP server) yang mempunyai no IP memberikan penawaran ke client tersebut.
3. IP Lease Selection
Client memilih penawaran DHCP Server yng pertama diterima dan kembali melakukan broadcast dengan message menyetujui peminjaman tersebut kepada DHCP Server
4. IP Lease Acknowledge
DHCP Server yang menang memberikan jawaban atas pesan tersebut berupa konfirmasi no IP dan informasi lain kepada Client dengan sebuah ACKnowledgment. Kemudian client melakukan inisialisasi dengan mengikat (binding) nomor IP tersebut dan client dapat bekerja pada jaringan tersebut.
Sedangkan DHCP Server yang lain menarik tawarannya kembali.
Tahap pertama adalah proses instalasi dan konfigurasi DHCP server yang dilakukan
pada PC yang akan difungsikan sebagai server.

A. Proses instalasi DHCP Server
1. Login ke sistem Linux sebagai root.
2. Catatlah, berapa nomer IP address dan nama host dari PC yang anda gunakan. Setelah itu, juga catat IP address dari komputer client (gunakan perintah ifconfig dan hostname).
3. Pastikan bahwa komputer server yang anda gunakan sudah terhubung ke komputer client (gunakan perintah ping).
4. Untuk menjalankan service DHCP diperlukan paket program yang bernama dhcp*- xxx.rpm. Cek apakah program tersebut sudah terinstall atau belum. # rpm –qa | grep dhcp Jika ada tampilan seperti berikut ini berarti di komputer anda program DHCP server sudah terinstall.
# rpm -qa|grep dhcp dhcp-devel-3.0pl1-23
dhcp-3.0pl1-23 Jika program sudah terinstall, langsung kerjakan langkah nomor 8.
5. Jika program DHCP belum ada, installah dengan cara sbb. Masukkan CD Rom Redhat #2 dan ketiklah perintah berikut ini.
# mount /dev/cdrom /mnt/cdrom
# cd /mnt/cdrom
# ls –l
# cd RedHat
# ls –l
# cd RPMS
# ls –l dhcp*
# rpm –ivh dhcp*
6. Jika tidak ditemukan dhcp-xxxx.rpm (xxx = nomer versi) cari dengan search engine
7. Instalasi program dhcp server.
# rpm –ivh dhcp*.rpm
8. Catatlah di direktori mana saja program dhcp diinstall.
# rpm –ql dhcp
# man dhcpd
9. Konfigurasi DHCP Server.
Untuk membuat file konfigurasi DHCP server dapat kita gunakan file contoh konfigurasi DHCP server yang telah disediakan.
[root@WSC204-01 cd2]# rpm -ql dhcp
/etc/rc.d/init.d/dhcpd
/etc/rc.d/init.d/dhcrelay
/etc/sysconfig/dhcpd
/etc/sysconfig/dhcrelay
/usr/bin/omshell
/usr/sbin/dhcpd
/usr/sbin/dhcrelay
/usr/share/doc/dhcp-3.0pl1
/usr/share/doc/dhcp-3.0pl1/CHANGES
/usr/share/doc/dhcp-3.0pl1/README
/usr/share/doc/dhcp-3.0pl1/RELNOTES
/usr/share/doc/dhcp-3.0pl1/dhcpd.conf.sample
/usr/share/man/man1/omshell.1.gz /usr/share/man/man5/dhcp-eval.5.gz
/usr/share/man/man5/dhcpd.conf.5.gz
/usr/share/man/man5/dhcpd.leases.5.gz
/usr/share/man/man8/dhcpd.8.gz
/usr/share/man/man8/dhcrelay.8.gz
/var/lib/dhcp
/var/lib/dhcp/dhcpd.leases
# cp /usr/share/doc/dhcp-3.0pl1/dhcpd.conf.sample /etc/dhcpd.conf
Editlah file konfigurasi dhcpd.conf.
# vi /etc/dhcpd.conf
Buatlah file konfigurasi dengan isi sbb. :
ddns-update-style interim;
ignore client-updates;
subnet 192.168.1.0 netmask 255.255.255.0 {
#IP Range yang digunakan
range 192.168.0.100 192.168.0.250
# default gateway
option routers 192.168.0.254;
#netmask
option subnet-mask 255.255.255.0;
#nama domain
option domain-name “dhianp.com”;
#ip dns server
option domain-name-servers 202.110.2.79 ;
default-lease-time 21600;
max-lease-time 43200;
} Jangan lupa untuk menyimpan file dhcpd.conf, kemudian jalankan ulang service dhcp.
10. Mengaktifkan service DHCP server.
Untuk menjalankan DHCP server ketikkan perintah:
# service dhcpd start
Untuk mematikan dhcp server gunakan perintah :
# service dhcpd stop
Untuk me-restart dhcp service gunakan :
# service dhcpd restart
Untuk mengetahui status dari service dhcp gunakan :
# service dhcpd status
11. Menghapus rule firewall.
Redhat Linux versi 8 atau yang lebih baru, akan mengaktifkan firewall secara default sehingga semua akses dari luar akan ditolak. Untuk kepentingan percobaan ini, ada baiknya untuk sementar semua rule firewall dihapus. Gunakan perintah :
# iptables –F
12. Jalankan perintah : # tail /var/log/messages
Copy paste hasilnya. Apa yang dapat dilihat dari file /var/log/messages
13. Konfigurasi DHCP client Setting DHCP client pada Windows XP. Masuk sebagai Administrator. Masukan password, Pilih 1. control panel, 2. Network Connection, 3. Local Area Connection, 4. Properties, 5. Internet Protocol
(TCP/IP), 6. General. Pada tab general pilih Obtain an IP address automatically dan Obtain DNS server addresses.
Pada Tab Alternate configuration, pilih Automatic private IP address.
Lalu buka command prompt dan jalankan perintah ini :
C:\Documents and setting\admin>ipconfig /release
Lanjutkan dg perintah berikut pada command prompt
C:\Documents and setting\admin>ipconfig /renew
Capture hasil yang didapat. Apakah IP, domain-name, IP DNS, gateway sesuai dg konfigurasi dapat dhcpd.conf? 14. Jalankan perintah :
# tail /var/log/messages
Copy paste hasilnya. Apa yang dapat dilihat dari file
/var/log/messages ?
15. Reboot komputer anda, masuk ke Linux dan mulailah melakukan setting
setting DHCP client pada Linux :
Pilih : System, Administration, Network Klik dua kali pada Devices, eth0
Pada tab General, pilih Automatically obtain IP address settings with dhcp. Pilih OK dan simpan perubahan setting jaringan.
16. Matikan ethernet card anda:
#ifdown eth0
17. Nyalakan kembali ethernet card anda:
#ifup eth0
18. Lihatlah IP yang dipakai dg perintah :
#ifconfig
Copy paste hasil output nomor IP
19. Untuk mengecek gateway, gunakan perintah :
# route -n
Copy paste hasil output
20. Cek DNS :
# vi /etc/resolv.conf
Copy paste hasil output
21. Anda telah melihat hasil settingan DHCP di linux client anda, apakah
sesuai dg settingan yang anda buat pada dhcpd.conf ?
22. Uji Coba DHCP Server
Untuk melihat kinerja DHCP server, perhatikan file berikut ini. Buka file berikut di DHCP server
#vi /var/lib/dhcp/dhcp.leases
Copy paste hasil vi. Samakah dg IP yang dikirimkan ke client windows dan linux.
23. Uji coba DHCP client. Buka file berikut di DHCP server.
# vi /var/lib/dhclient/dhclient-eth0-leases
Copy paste hasilnya. Bandingkan hasilnya dg perintah langkah 18-20.
Samakah ? Mengapa ?
24. Mematikan service.
Perintah-perintah berikut ini ditujukan untuk mematikan service dhcp server, ketikkan perintah-perintah berikut ini.
# service dhcpd stop
# rm /etc/dhcpd.conf
# rpm –e dhcp
Done. Selamat mencoba.

Buruan Ikutan !

dveewee — Thu, 27 Dec 2007 23:40:04 +0000

Banyak anak betawi atawa yang lahir di Jakarte pade diriin kumpulan betawi seperti Forum Betawi Rempug, Lembaga Macan Kemayoran dan laennye.
Tapi kite bikin perkumpulan laen dari pade yang laen kesendotnet yang artinye Kemayoran Senen Network. Tujuannye supaya anak muda Kemayoran Senen pade melek teknologi khususnye internet. Kalo ente pade demen maen komputer, internet, ngobrol-ngobrol ame siape aje nyok kite patungan aje ame kesendotnet.
Biaye pasang baru dirumah cuman 500 rebu ame buat patungan akses bulanan 250 rebu, total 750 rebu ente udeh bisa liat liat negeri orang ame cari informasi ame atu lagi berite. Gak pake pulsa telepon, enggak dibatesin waktunye.
Kalo usaha wartel ente turun pendapatannye, jangan nyerah tambahin warnet aje.
Cuman pasang baru 2 jutaan (tergantung lokasi) ame bayar patungan akses bulanan (tergantung banyaknye komputer).

Apa kata dunia!

dveewee — Thu, 27 Dec 2007 22:02:07 +0000

Selamat datang dhianp.wordpress.com.Kritik dan saran saya tunggu.