SSH ke Debian tanpa password

Contohnya ServerA dan ServerB keduanya menjalankan ssh daemon.

Untuk mengijinkan ServerA me-SSH ke ServerB tanpa  password, ikuti perintah ini:

# ssh-keygen -t rsa

Catatan: User yg digunakan adalah root

Perintah diatas akan menghasilkan dua file id_rsa.pub dan id_rsa

Selanjutnya, salin/copy kedua file tsb file authorized_keys di ServerB

# scp id_rsa.pub ServerB:~/.ssh/authorized_keys

Masukkan password jika diminta.

# scp id_rsa.pub ServerB:~/.ssh/ServerA_rsa.pub

# cat ServerA_rsa.pub >> authorized_keys

Ok gitu aja. Sekarang coba ssh ke ker ServerB dari ServerA tanpa password:

# ssh serverB uname -a

Perintah diatas akan menjalakan “uname -a” di ServerB dan hasilnya ditampilkan ke ServerA.

Prosedur yang sama bisa di terapkan juga di ServerB, dimana ServerB me-SSH ServerA tanpa password.

Enable atau Disable Password Root

Untuk mengaktifkan akun root (tidak disarankan).

$sudo passwd root

Isikan password root baru, setelah itu root bisa digunakan untuk login.

Untuk mendisablenya / menonaktifkan root di ubuntu, gunakan perintah ini

$sudo passwd -l root

Trus kalo ingin menggunakan konsole dengan root, gunakan perintah

$sudo -i

Change Network Card Address (MAC)

Mengubah alamat MAC kartu jaringan. MAC = Media Access Control

Install di Debian

#apt-get install macchanger

Install di Ubuntu

sudo apt-get install macchanger

Cek MAC kartu jaringan dengan perintah

ifconfig

eth0 Link encap:Ethernet HWaddr 00:0C:29:A8:D0:FA
inet addr:172.20.22.35 Bcast:172.20.22.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fea8:d0fa/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7690 errors:0 dropped:0 overruns:0 frame:0
TX packets:6399 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4284579 (4.0 MiB) TX bytes:876317 (855.7 KiB)
Interrupt:177 Base address:0×1080

Install Nvidia and ATI Drivers on Mandriva 2007

gampangnya gini, install mandriva spring one ntar otomatis driver nvidia or ati langsung ada … sorry j/k

gini :

download dulu ati driver nya dari sini
http://linux.softpedia.com/get/System/Hardware/ATI-Radeon-Linux-Display-Drivers-6719.shtml

nama filenya ati-driver-installer-8.38.6-x86.x86_64.run

Mandriva Now Heads to Korea

Mandriva and MetaNav make development commitments to the East Asian open source community

Headquartered in Paris, France, Mandriva S.A. is a Linux and open source software company with a development center in Curitiba, Brazil. It is also known as the creator and maintainer of the Mandriva Linux distribution.

Recently, one of Mandriva’s officials released an announcement according to which it has closed a partnership with MetaNav for developing and distributing customized
Mandriva Linux applications for the Asian market.

“Open source is booming in East Asia, and in Korea in particular. Mandriva will work in close collaboration with MetaNav to provide Mandriva Linux solutions to Korean people, and we are looking forward to taking part in this transition process” stated Gaurav Parakh, Mandriva Partnership Manager.

Remastering / Remixing Fedora 7

Create a Fedora 7 CD in 3 Easy Steps

– Remixing Fedora 7

By: Marius Nestor, Linux Editor

Fedora is a very popular Linux-based operating system that includes all the bleeding-edge technologies. Fedora 7 was announced on the last day of May 2007 and it brings many new features and improvements over previous versions, which were entitled Fedora Core. Among the new features, we can notice that Fedora has now an installable LiveCD, so everyone can now just burn the ISO and test Fedora OS directly from the CD, without installation. Together with the LiveCD, Fedora project is proud to announce a wonderful application that lets everyone create their own Fedora-based installable LiveCDs. The application is called Revisor and features a nice GUI for inexperienced users and a CLI (command-line interface) with extended configuration for advanced users. The Revisor project can build both Fedora 7 Install and Live Media.

Unfortunately, Revisor does not come installed in the KDE edition of Fedora 7 (don’t know about the Fedora 7 DVD), so you must install it yourself manually. You have two choices:

1. Either you download the RPM file from Softpedia, save the file in your home folder, then open a terminal and type:

rpm -i revisor-2.0.3.9-1.fc7.noarch.rpm

2. Or you can open a terminal, switch to root with the su command and then type:

yum -y install revisor