installation process of VirtualBox on a fresh centos5.5 server. The installation of VirtualBox will require the building of kernel modules. If the development environment and kernel source are not already installed: Step-1: Install the necessary tools, just issue the following command from command prompt, you must have root privilege for this. #yum groupinstall “Development Tools” […]
Category Archives: Linux
Install Logwatch : Issue the following command to install Logwatch along with Postfix: apt-get install postfix logwatch Be sure to select the “Internet Site” configuration when installing Postfix. Configure Logwatch Link Once you have installed Logwatch, you will need to configure it to email you the reports it generates. You are encouraged to look through […]
Installing and Using Fail2ban On Debian and Ubuntu system Make sure your package repositories and installed programs are up to date by issuing the following commands: kartook@K:~$ sudo apt-get update [sudo] password for kartook: kartook@K:~$ sudo apt-get upgrade –show-upgraded kartook@K:~$ sudo apt-get install python kartook@K:~$ sudo apt-get install fail2ban kartook@K:~$ Afterwards, you will find all […]
In this method we are going to use IpTables . make sure its installed .. Method 2: run this to disable ping response: iptables -I INPUT -i ech0 -p icmp -s 0/0 -d 0/0 -j DROP and this to allow […]
How do I disable the ping response? Add the following line to your init script for the network (the name depends on the distribution you use): echo 1 >/proc/sys/net/ipv4/icmp_echo_ignore_all This disables ping responses. To reenable, use the following command: echo 0 >/proc/sys/net/ipv4/icmp_echo_ignore_all To make this permanent set the following into /etc/sysctl.conf (if you have such […]
Loopback tap installation on Ubuntu Mostly i like to practice on GNS3 . SO i need to create multiple look back on my ubuntu Box .. Here is the way user@K:~$ sudo —i root@ K:~#apt-get install uml-utilities Reading package lists… Done Building dependency tree Reading state information… Done The following extra packages will be installed: […]
TELNET (TELetype NETwork) is a network protocol used on the Internet or local area network LAN connections. The telnetd program (telnet server) is a server which supports the DARPA telnet interactive communication protocol. Telnetd is normally invoked by the internet server inetd or xinetd for requests to connect to the telnet port as indicated by […]
how to get free – to see swap space information in linux Command : cat /proc/meminfo ( or ) free out put from my system kartook@K:~$ cat /proc/meminfo; free MemTotal: 12320084 kB MemFree: 3508632 kB Buffers: 121068 kB Cached: 5832992 kB SwapCached: 1616 kB Active: 4625864 kB Inactive: 3571736 kB Active(anon): 1689308 kB Inactive(anon): 584088 […]
I like to learn how to burn through command line .Finally found 🙂 Here is it . [root@K ~]# burn_cd -d cd0 iso_image_file Running readcd … Capacity: 2236704 Blocks = 4473408 kBytes = 4368 MBytes = 4580 prMB Sectorsize: 2048 Bytes burn_cd was successful.