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Endian Router Blocking IP on Public Interface

Rumi, November 20, 2016

You can make a general IP ban list. You need to go to Port forwarding / Destination NAT Create a new rule Click on the advanced mode Incoming IP: Type: Zone/VPN/Upllink. Select Uplink main – IP:All known. Incoming service port, Service: Any, Port: Any. In the Translate To section set…

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How to update Debian 6 Squeeze

Rumi, November 6, 2016

After a Debian version has reached EOL (end of life), its repositories go to the Debian archive. Therefore we can use this archive to get packags for our distribution. The syntax for our /etc/apt/sources.list is as follows: deb http://archive.debian.org/debian/ <version> main non-free contrib deb-src http://archive.debian.org/debian/ <version> main non-free contrib deb…

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Install Varnish Cache On Debian 7

Rumi, November 6, 2016

Normally Varnish Cache is available on Debian default repositories. But i suggest you to use Varnish Cache repositories to get latest version of Varnish Cache. Run the following commands as root user to install Varnish Cache. # curl http://repo.varnish-cache.org/debian/GPG-key.txt | apt-key add – # echo “deb http://repo.varnish-cache.org/debian/ wheezy varnish-3.0” >>…

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Understandign CHMOD- the basics

Rumi, September 22, 2016

There are four OCTAL (0..7) digits, which control the file permissions. But often, only three are used. If you use 600 it equals 0600. The missing digit is appended at the beginning of the number. Each of three digits described permissions. Position in the number defines to which group permissions…

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OpenDKIM Postfix SMTP Relay Server on Debian -7

Rumi, September 11, 2016February 26, 2024

Install OpenDKIM Before starting the installation, a system update is recommended: sudo apt-get update sudo apt-get dist-upgrade Install OpenDKIM and it’s dependencies: sudo apt-get install opendkim opendkim-tools Additional packages will be listed as dependencies, type yes and press Enter to continue. Configure OpenDKIM A couple of files must be created…

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Perfect way to reset MySQL Root Password on Debian/Ubuntu

Rumi, August 9, 2016

If you forgot your MySQL root password, you can reset it by following these steps. 1. Stop the MySQL service. service mysql stop 2. Start MySQL without password and permission checks. mysqld_safe –skip-grant-tables & 3. Press [ENTER] again if your output is halted. 4. Connect to MySQL. mysql -u root…

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How to install Legacy Photoshop 7 on windows 10

Rumi, July 30, 2016

Regarding the OP’s problem, it appears the installer exe requires to use resources held by other processes. For me it was Skype and Logitech wireless mouse software. To work out what is “blocking” the installer: start  task manager, you’ll see setup.exe running as a background process but consuming no CPU…

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Reset a MySQL root password for Debian

Rumi, July 14, 2016

Use the following steps to reset a MySQL root password by using the command line interface. Stop the MySQL service (Ubuntu and Debian) Run the following command: sudo /etc/init.d/mysql stop (CentOS, Fedora, and Red Hat Enterprise Linux) Run the following command: sudo /etc/init.d/mysqld stop Start MySQL without a password Run…

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Install ioncube on Linux server

Rumi, July 14, 2016

Begin by downloading the latest loaders to your computer from http://www.ioncube.com/loaders.php Extract the contents of the archived file on your local PC to a folder of your choice. Upload the folder IONCUBE via FTP to your domain webspace Now establish an SSH connection with server using a suitable client (e.g….

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ip_conntrack table full, dropping packet

Rumi, July 3, 2016

Last week, I found myself with a server under low load, but it couldn’t make or receive network connections. When I ran dmesg, I found the following line repeating over and over: ip_conntrack: table full, dropping packet I’d seen this message before, but I headed over to Red Hat’s site…

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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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