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Category: Configurations (Linux)

Understanding Linux CPU Load

Rumi, November 10, 2012

You might be familiar with Linux load averages already. Load averages are the three numbers shown with the uptime and top commands – they look like this: load average: 0.09, 0.05, 0.01 Most people have an inkling of what the load averages mean: the three numbers represent averages over progressively…

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Reset root Password for Redhat/CentOS/Sl Linux 5.x

Rumi, November 1, 2012November 1, 2012

You can log in using single-user mode and create a new root password. To enter single-user mode, reboot your computer. If you use the default boot loader, GRUB, you can enter single user mode by performing the following: At the boot loader menu, use the arrow keys to highlight the…

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Create Customer Linux Distribution

Rumi, October 27, 2012October 27, 2012

Remastersys We’ve previously covered Remastersys. It’s one of a group of tools that create your ISO files using the filesystem on which it’s being run. You essentially clone your current Debian/Ubuntu install and make it into a live CD. This makes it extremely easy to customize every little thing about…

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zimbra admin password reset

Rumi, October 4, 2012

To reset the administrative password: su – zimbra zmprov sp <admin email address> <new password> To get a list of all administrators: su – zimbra zmprov gaaa To access the admin console: https://YOURHOST:7071 Remember that the administrative console (sometimes) requires a full email address as the login name, so you…

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XRDP in OpenSuse 11.0/11.2/11.3

Rumi, September 28, 2012

This tutorial is for advanced users who prefer to skate all the detail that attaches to a "new user" Tutorial. The details (wherein lies the devil) are here: Windows Linux RDP Remote Desktop Connections using openSUSE as Client or Server (terminal server) FWIW there's also an 11.1 version there. Tested…

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Zimbra 8 Community edition on Scientific Linux 6 (64 Bit)

Rumi, September 15, 2012September 15, 2012

Install SL 6.3 (64 bit) Installing SL6.3 (64bit)  with 'minimal' installation mode Post installing, fix with the Static IP Address (Public IP and I assume the system is not behind firewall) Double check with /etc/resolv.conf file parameters Prerequisites for ZImbra installation Let's firsy update- yum update Let's install some pckages…

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Install nginx on virtualmin (GPL) server

Rumi, August 26, 2012

Installing Nginx Support Switching a system from the Apache webserver (installed by default by Virtualmin to Nginx should only be done if no virtual servers with websites have been created yet. Ideally the change should be done on a freshly installed system, running RHEL 6.0, CentOS 6.0 or Debian 6.0…

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Redhat/CentOS install PHP on NginX server as fastcgi

Rumi, August 26, 2012

tep # 1: Enable EPEL repo ngnix is not included in the base system. Turn on EPEL repo to install nginx stable release: # rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/$(uname -m)/epel-release-5-3.noarch.rpm Step # 2: Install ngnix Type the following command at a shell prompt: # yum install nginx Sample output: Loaded plugins: downloadonly,…

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Network Configuration on Debian or Ubuntu

Rumi, August 24, 2012

  Setting up an Ethernet Interface The majority of network setup can be done via the interfaces configuration file at /etc/network/interfaces. Here, you can give your network card an IP address (or use dhcp), set up routing information, configure IP masquerading, set default routes and much more. Remember to add…

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Install Zimbra on Centos 5 Step by step

Rumi, August 24, 2012August 24, 2012

Zimbra is a suite of tools for Unix/Linux/MacOS systems, which includes a secure mail server, web mail, anti-spam/anti-virus controls, a Web management interface, integrated calendaring, mobile device sync, and more. In many ways, Zimbra is the Unix equivalent to Microsoft Exchange.   In this post, I will be installing Zimbra…

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Myself…

Hi, I am Hasan T. Emdad Rumi, an IT Project Manager & Consultant, Virtualization & Cloud Savvyfrom Dhaka, Bangladesh. I have prior experience in managing numerous local and international projects in the area of Telco VAS & NMC, National Data Center & PKI Naitonal Root and CA Infrastructure. Also engaged with several Offshore Software Development Team.

Worked with Orascom Telecom-Banglalink, Network Elites as VAS partner, BTRC, BTT (Turkey) , Mango Teleservices Limited and Access to Informaiton (A2I-UNDP)

Currently working at Oracle Corporation as Principal Technology Solution and Cloud Architect.

You can reach me [h.t.emdad at gmail.com] and I will be delighted to exchange my views.

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