konfigurasi dasar DEBIAN ROUTER

catatan praktek : konfigurasi debian router

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tanggal Praktikum : 28 Oktober 2016

Topology

Langkah Konfigurasi

1. Konfigurasi Interface
   siswa@debian:~$su
   password : <password user root> smk

siswa@debian:~# nano /etc/network/interfaces
       .......
       #interface PUBLIK
auto eth0
  iface eth0 inet static
    address 192.168.30.1 <sesuaikan dengan no.urut meja>
netmask 255.255.255.224
gateway 192.168.30.30
dns-nameservers 202.134.1.10,202.134.2.5,8.8.8.8


       #interface LOKAL
  auto eth1
  iface eth1 inet static
address 192.168.10.1
netmask 255.255.255.252


ctrl+X -> y

2. restart
   Restart lan-card
   siswa@debian:~# /etc/init.d/networking restart

   restart service networking
   siswa@debian:~# service networking restart

   siswa@debian:~# ifdown eth0
   siswa@debian:~# ifup eth0

3. periksa hasil konfigurasi
   siswa@debian:~# ifconfig

4. konfigurasi resolver
   siswa@debian:~# nano /etc/resolv.conf
   
    nameserver 202.134.1.10
nameserver 202.134.2.5
nameserver 8.8.8.8

5. Konfigurasi nama system (hostname)
   siswa@debian:~/# nano /etc/hostname

  debian<tambahkan no.urut siswa> --> contoh : debian01

   siswa@debian:~# reboot (restart system)
   siswa@debian01:~#

6. Konfigurasi ip routing


7. Konfigurasi daftar host (manual DNS)
   siswa@debian01:~# nano /etc/hosts

127.0.0.1           localhost
192.168.10.1 ansori.net           debian01
......

*simpan konfig

8. test koneksi / ping ke IP eth0, eth1, namadomain
siswa@debian01:~#ping 192.168.30.1 (ping eth0)
siswa@debian01:~#ping 192.168.10.1 (ping eth1)
        siswa@debian01:~#ping ansori.net (ping domain name)
siswa@debian01:~#ping debian01 (ping hostname)
 


9. Konfigurasi fungsi PC Debian 8.5 sebagai ROUTER

   a. IPTABLES
      siswa@debian01:~#iptables -t nat -A POSTROUTING -s 192.168.10.0/30 -j MASQUERADE
      siswa@debian01:~#iptables-save > /etc/iptables
      siswa@debian01:~#echo "up command iptables-restore < /etc/iptables" > /etc/network/interfaces

      -------------------------------------- atau -----------------------------------------------------

      siswa@debian01:~# nano /etc/rc.local

      ......
      iptables -t nat -A POSTROUTING -s 192.168.10.0/30 -j MASQUERADE
      exit

   b. IP FORWARDING
siswa@debian01:~# nano /etc/sysctl.conf

........
#uncomment the next line to enable packet forwarding for IPV4
net.ipv4.ip_forward=1 line : 28
#........


   c. restart System
siswa@debian01:~#reboot

10. Test koneksi LAPTOP ke INTERNET via Router debian 8.5
    hubungklan Laptop ke system via eth1 jgn lupa di beri IP
    IP : 192.168.10.2
    netmask 255.255.255.252
    gateway : 192.168.10.1
    dns1 : 192.168.10.1
    dns2 : 202.134.1.10

    C:>ping smkassalaam.sch.id