Let's Share Knowledge And Make A Difference

  • Data Center Solution

    A data centre is a facility where companies can keep and operate most of the ICT infrastructure that supports their business. IT host the most critical systems that are vital to the continuity of daily operations...

    Read More
  • Monitor your network and systems like a hawk

    There are some perfact open souce solution for monitoing your Network devices and server system's health. Nagios, Cacti, WhatsUpGold and Smokeping are the leading monitoring tools among them...

    Read More
  • Email service and Security

    Now a days life without email service is unthinkable and E-mail service is quite expensive. As always linux gives us the answer with a strong mail service named postfix...

    Read More
  • Data Center Solution

    A data centre is a facility where companies can keep and operate most of the ICT infrastructure that supports their business. IT host the most critical systems that are vital to the continuity of daily operations...

    Read More
  • Monitor your network and systems like a hawk

    There are some perfact open souce solution for monitoing your Network devices and server system's health. Nagios, Cacti, WhatsUpGold and Smokeping are the leading monitoring tools among them...

    Read More

Monday, May 27, 2013

How to enable port forwarding in debian 7 wheezy

Basic Static Routing Part #1 (Port forwarding) My network diagram: Here host#1 is our gateway server. And host#2, host#3 are workstations. Lets, Set ip addresses to the interfaces at host#1, root@host1:~# nano /etc/network/interfaces # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth1 allow-hotplug eth1 iface eth1 inet static         address 192.168.1.11        ...

Monday, May 20, 2013

How to configure Quota on debian 7 wheezy

How to configure Quota on debian 7 wheezy Topics:  Quotas, Hard quota, Soft quota, Inode, Grace period, dump, tcpdump, Mount, Mount point CONCEPT: Generally we user two types of quota. One is based on folder/directory and the other one is based on the user/group. . user & group quota . folder quota . quota with webmin . warnquota Configuration: Please follow the below two configuration for the user/group and for folder quota. And follow the explanation at the end of the document. Virtual Directory/Folder Quota Now, If you...

Sunday, May 19, 2013

How to configure windows 7 VPN client to connect with a VPN server (l2tp+ipsec)

How to configure windows 7 VPN client to connect with a VPN server (l2tp+ipsec) 1. Set a new connection or network in Control Panel >> Network and Sharing Center. 2. Select Connect to a workplace, and click Next 3. Select create a new connection, and click Next.  4. Select Use my Internet Connection.  5. Type the WAN IP address: 123.123.123.123 of the VPN server, Destination name: mahidulVPN and...

How to configure VPN with l2tp and ipsec using Mikrotik router

How to configure VPN with l2tp and ipsec using Mikrotik router: For a long time in my life I have a fear with the name VPN. :( . In my absence mind I thought that VPN    is some kinds of alien technology. :-D. I know you are laughing to know that. But when I understood them I was relief and also shameful that I was afraid of it. So, here I am going to share the concept and also the configuration of VPN server. Stick with me. :-D Concept: VPN...

Saturday, May 18, 2013

Very essential Debian commands

Very essential Debian commands Update the debian package list:                 root@mahidul:~root@mahidul:~# apt-get update Upgrade your debian packages:     root@mahidul:~# apt-get upgrade Upgrade debian to newer version,     root@mahidul:~# apt-get dist-upgrade caution: this may also corrupt your system if you don't have a deeper understanding in Linux don't use it. Setting the date and time:         root@mahidul:~# date          ...

Friday, May 17, 2013

How to install and configure Debian 7 wheezy

How to install and configure Debian 7 wheezy I know for a new beginner Linux installation is not easy.  Specially if you come from windows background. In Linux you need to understand some basic info regarding partitioning and Linux data structure for going forward. But don't worry everyone has started from zero. So, If you are a new bee in Linux, don't worry at all. Guys like us always here to help at your journey to the Linux world. :-D Introduction: In this document I have used the following settings as an example: Real IP                                     ...

How to install and configure POP server Dovecot in Debian 7 wheezy

How to install and configure POP server Dovecot in Debian 7 wheezy Concept: As a pop packages there are major qpoppor and dovecot. Here, we are going to discuss basic installation and configuration regarding dovecot. Dovecot installation: mahidul@mahidul:~# apt-get install dovecot* mahidul@mahidul:~# vim /etc/dovecot/dovecot.conf disable_plaintext_auth = no log_timestamp = "%Y-%m-%d %H:%M:%S " mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_privileged_group = mail managesieve_notify_capability = mailto managesieve_sieve_capability ...

Thursday, May 16, 2013

Basic concept for Linux beginner

Basic concept for Linux beginnerLinux basics:1.   Create a file2.   Create a folder3.   Copy a file4.   Copy a folder with its subfolders and files5.   Move a file6.   Move a folder with its subfolders and files7.   Copy a folder with its subfolders and files from one workstation to another workstation8.    move a folder with its subfolders and files from one workstation to another workstation9.    Rename a file or folder10.  Delete/Remove...