Breaking out cascading DSLAM

In this part, I want to reconfigure DSLAM (Digital Subscriber Line Access Multiplexer) for trunk connection. Each DSLAM connected via cascading port, so I have to move the link  to  metro ethernet port.

I’m using Huewei as broadband devices for  DSLAM and BRAS (Broadband Remorte Access Server). Lets begin for make some migration.

This commands are use for DSLAM trunking port that connected to metro ethernet devices

interface GigabitEthernet7/1/0
description “===UP LINK BRAS===”
switchport mode trunk
switchport trunk allowed vlan xxx
svlan-upport vlan yy
svlan-upport vlan zz

and this commands are use for downlink connection between BRAS and metro ethernet :

interface GigabitEthernet3/0/0
pppoe-server bind virtual-template  0
description LINK TO METRO
undo shutdown
negotiation auto
bas
access-type layer2-subscriber
#
interface GigabitEthernet3/0/0.1
pppoe-server bind virtual-template  0
undo shutdown
user-vlan xx
user-vlan yy
user-vlan aa bb
user-vlan cc dd
user-vlan ee
bas
access-type layer2-subscriber  bas-interface-name bas_balaikota  default-domain  authentication broadband
client-option82
#
interface GigabitEthernet3/0/0.2
pppoe-server bind virtual-template  0
undo shutdown
user-vlan kkkk
bas
access-type layer2-subscriber  default-domain  authentication vlankkkk
authentication-method  bind

I have to make  a new physical connection from DSLAM to metro ethernet and configure it as a new uplink and downlink connection so that I can pull out the cascading connection port.

SSH Server di windows menggunakan Cygwin

Sehabis kembalinya dari Surabaya, saya di suruh membuat SSH Server untuk otomatisasi billing kolektor. Nah.. pas sampe di Makassar, komputer yang tersedia yaitu menggunakan sistem operasi Windows XP.

Langkah pertama saya yaitu langsung terjun untuk membuat SSH Server di sistem operasi window tersebut. Apa saja siy yang harus di prepare ? Sebenarnya mudah, tinggal install Cygwin aja SSH Server dah langsung bisa jadi. Eiitttsss…. tapi ada parameter2 yang harus di install pada Cygwin. Apa siy parameter2 itu ? openssh, tcp_wrappers, diffutils, zlib.

Setelah Cygwin di install, langkah selanjutnya yaitu konfigure windowsnya. Gimana yach caranya ?

Caranya gampang, klik kanan My Computer, Properties, Advanced, Environment Variables. Klik “New” dan masukkan System variables:
variable name is CYGWIN
variable value is ntsec tty

Pilih Path variable dan klik “Edit” :

Tambahkan ;c:\cygwin\bin di akhir baris.

Kalau sudah di setting windowsnya, kasih permition di cygwin :

chmod +r  /etc/passwd
chmod +r  /etc/group
chmod  777  /var

Jalankan script konfigurasinya : ssh-host-config  -y dengan hasil konfigurasi yang diharapkan yaitu :

“privilege separation” => yes
“create a local user sshd on this machine” => yes
“install sshd as a service” => yes

Jalankan service SSH dengan cara : net start sshd atau cygrunsrv  –start  sshd

Jika gagal dalam menjalankan service tersebut, coba jalankan beberapa perintah berikut ini :

chown system /etc/ssh*
chown system /var/empty or chown sshd_server /var/empty
net start sshd

– Finish–