Blog Archives

Introduction to VLAN

Virtual Local Area Networks 1.0 Introduction A Local Area Network (LAN) was originally defined as a network of computers located within the same area. Today, Local Area Networks are defined as a single broadcast domain. This means that if a user

Posted in Networking

Konfigurasi VNC Server Linux RHEL

Di asumsikan vnc server sudah terinstal dengan baik, jika vnc belum terinstall silahkan download di sini: rpmfind.net. 1. Setelah paket di download lakukan instalasi   rpm -ivh vnc-server-3.3.3r2-47.i386.rpm, kemudian aktifkan service vncserver dan jalankan 2. Untuk mengatifkan GUI, edit file

Posted in Linux

Instalasi Squid proxy

Cek squid sudah terinstall atau belum dengan perintah berikut: # rpm -qa |grep squid squid-2.5.STABLE Jika belum terinstall, silahkan install terlebih dahulu dengan menggunakan cd RedHatnya sendiri atau download dari sini. Kemudian copy file squid.conf sebelum melakukan konfigurasi. # cp

Posted in Linux

Setting TFTP address on Cisco IP Phone 7961/7941

1. Press the Settings button on your phone. 2. Using the blue scroll button, press the down arrow until Option #2 ‘Network Configuration’ and press the ‘Select’ Softkey, or press the number 2 on your dial pad. 3. Press *

Posted in Cisco

Extract file on linux

To extract a tar.bz2 file, use the command (note the j option) Code: tar -jxvf filename.tar.bz2 To extract a tar.gz file, the the command (note the z option) Code: tar -zxvf filename.tar.gz z is to handle files that were compressed

Posted in Linux

Setting Squid Transparent Proxy

*Edit IPTABLEs: iptables -t nat -A PREROUTING -i eth0 -p tcp –dport 80 -j REDIRECT –to-port 3128 * Edit file /etc/squid/squid.conf, tambah opsi ‘transparent’ pada tag http_port http_port 3128 transparent * httpd_accel_host virtual * httpd_accel_port 80 * httpd_accel_with_proxy on *

Posted in Linux

Blok ICMP dengan iptables

disable outgoing ICMP request? Use the following rules: iptables -A OUTPUT -p icmp –icmp-type echo-request -j DROP OR iptables -A OUTPUT -p icmp –icmp-type 8 -j DROP Enable ICMP: To enable ICMP ping outgoing request use following iptables rule: SERVER_IP=”202.54.10.20″

Posted in Linux, Uncategorized

Add Remove applications in Linux

As explained earlier, the best way to install an application in Linux is to compile its source. Linux sources are available as compressed tar gzipped or bzipped files. To install application through its source, copy or download the source in

Posted in Linux, Uncategorized