Some times when creating bulk users, admins are forced to create complex passwords. But how to do it? How many you can set manually? Let me put it in this way. For one or two users we can think for a random password and assign to them. But if its 100 users? Naaa.. I cannot think for 100 passwds.
So leave this job to Linux to create random passwords.
you use below command to generate … Continue Reading
How to use IPtables to block ICMP (Internet Control Message Protocol) requests?
Ans : To do this we have understand why we require this thing should be done.
When Hackers try to hack in to any machine first thing they will do is a basic ping test.
Code :
#ping target-machine
If this is succeed they will come to a conclusion that system is up and they can go forward and they can do … Continue Reading
#ping target-machine
If this is succeed they will come to a conclusion that system is up and they can go forward and they can do … Continue Reading
Lets start how to install SNORT which is An Intrusion detection system (IDS) and an Intrusion Prevention System (IPS). We tested installation of SNORT on RHEL5.
Step1 : Download following packages
libpcap-1.0.0.tar.gz
pcre-8.00.tar.gz
libnet-1.0.2a.tar.gz (This is optional package if you want SMB popup alerts on window’s machines.)
snort-2.8.5.1.tar.gz
acid-0.9.6b23.tar.gz
libpcap-1.0.0.tar.gz
pcre-8.00.tar.gz
libnet-1.0.2a.tar.gz (This is optional package if you want SMB popup alerts on window’s machines.)
snort-2.8.5.1.tar.gz
acid-0.9.6b23.tar.gz
Note : Don’t try to install SNORT through rpm packages, try to install them from source packages because there will be so many dependencies. And … Continue Reading
1.How to take the backup and restore MBR? Why do you require to take the backup of your MBR?
Ans : MBR (Master Boot Recorder) is a vital part of your hard disk which contains booting information, without it its difficult to boot the system. Suppose you have windows and Linux duel boot on your machine and as you know windows is more prone to virus attacks. So it’s always better to backup your MBR … Continue Reading
There are so many tools to monitor network such as MRTG, now I am going to explain such tool which monitors bandwidth for a system, ie vnstat(view network statistics). Its very much easy to install and configure.
This tool can give you full details about how much bandwidth used on the basics of,
Per month.
Per week.
Per day.
Per hour.
Per second.
Even we can see live traffic. This is awesome tool .… Continue Reading
This is a guest post by Praveen
10 COMMANDMENTS !! U LIKE IT FOR SURE !!
=1 People are illogical, unreasonable, and self-centered. Love them anyway.
=2 If you do good, people will accuse you of selfish, ulterior motives. Do good anyway.
=3 If you are successful, you will win false friends and true enemies. Succeed anyway.
=4 The good you do today, will be forgotten tomorrow. Do good anyway.
=… Continue Reading
