How to cofigure Cisco Time Based ACL Router(config)#time-range work-hour Router(config-time-range)#  absolute start 12:50 29 December 2011 end 14:05 29 December 2011 (Here start time 12:50 29 December 2011 and end time 14:05 29 December 2011.) OR Router(config-time-range)# periodic Monday Tuesday Wednesday…

How to Install or Upgade Cisco IOS with Consol connection From Hyper Terminal When boot the IOS just hit kebord “Ctrl+Break”. You will see you are in Rommon Mode. rommon 1 > confreg do you wish to change the configuration? y/n…

Password Break of Cisco Router Create a consol connection with the default setting When its booting the IOS then hit “Ctrl+Break” Then it will go to the ROMON Mode. it looks like Romon>help You need to change the register value. to…

Backup an IOS File from a Cisco Router Before Starting procedure you need to download and install a TFTP server on your PC There are many Free TFTP server just download one and install your PC. Step 1 Create a…

First thing to note is that this procedure requires an IMG file, not an ISO. So the first thing we will be doing is converting the ISO file to the accepted DMG format. 1. Download the desired .iso file 2.…

Below are the equivalent of “Page Up” and “Page Down” shortcut key. Also few more options. 1. FN+(Arrow up/down) = Page up / down 2. FN+(Arrow left/right) = go to top or bottom of a page 3. COMMAND+(Arrow up/down) =…

Command for last reboot and shutdown. Last Rebbot, Shutdown and login information with date and time. $ last Last Rebbot Information with date and time $ last reboot  Last Shutdoan Information with date and time $ last shutdown Last Rebbot…

How to take screenshoot or printscreen on MAC OS x To take full Desktop Screenshoot type: command+shift+3 To take scpecific Screenshoot type: command+shift+4 It will apear scissor/cutsor and you can crop your chosen portion.

Command Line for vi in MAC While in command mode (case sensitive) move the cursor with arrow keys; if there aren’t any arrow keys, use j,k,h,l i – change to insert mode (before cursor) a – change to insert mode…

How to Reset Forgotten Password in Ubuntu When the computer starts booting, press the [Esc] key. This will show you the boot menu. Use the Up/Down arrow keys to select Recovery Mode, then wait for the computer to completely boot…

What Version of Ubuntu You are Running Its real easy to find out which version Ubuntu you are running. Just open up a terminal window, and type the following: #cat /etc/issue You will get something like this: Ubuntu 9.10 \n…

How to Install and Configure Webmail Squirrelmail in CentOS [root@www ~]# yum -y install squirrelmail [root@www ~]# cd /usr/share/squirrelmail/plugins/ [root@www plugins]# wget http://www.squirrelmail.org/plugins/compatibility-2.0.14-1.0.tar.gz [root@www plugins]# wget http://www.squirrelmail.org/plugins/empty_trash-1.4-1.2.2.tar.gz [root@www plugins]# wget http://www.squirrelmail.org/plugins/secure_login-1.4-1.2.8.tar.gz [root@www plugins]# tar zxvf compatibility-2.0.14-1.0.tar.gz [root@www plugins]# tar zxvf empty_trash-1.4-1.2.2.tar.gz [root@www plugins]#…

Installing and Configuring PowerDNS with PowerAdmin from Source Pre-requisites # yum group install ‘Development Tools’ # yum install libxml2-devel gd gd-devel libmcrypt-devel libmcrypt libmhash curl curl-devel libtool-ltdl-devel libtool-ltdl libpng-devel imagemagick ncurses ncurses-devel pce-devel zlib-devel bzip2-devel Apache 2.2.15 # cd /usr/local/src…

introduction: Cacti is a complete frontend to RRDTool, it stores all of the necessary information to create graphs and populate them with data in a MySQL database. The frontend is completely PHP driven. Along with being able to maintain Graphs,…

Configure FTP Own Directory in CentOS FTP user to Permit his own/specific directory then: And FTP Users with Only Read Access to a Shared Directory In this example, anonymous FTP is not desired, but a group of trusted users need…