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Branding the Sunstone Portal

Rumi, July 31, 2015July 31, 2015

You can easily add you logos to the login and main screens by updating the logo: attribute as follows: The login screen is defined in the /etc/one/sunstone-views.yaml. The logo of the main UI screen is defined for each view in the view file. Find more on: http://docs.opennebula.org/4.8/administration/sunstone_gui/suns_views.html

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perl(Net::SSLeay) is needed by webmin

Rumi, July 16, 2015

So the Webmin on Redhat/CentOS is now requiring this particular perl module to be pre-installed before the RPM installer begins. A very short cut to install this module by using yum- yum install -y perl-Net-SSLeay Voila! your done.

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Mustafizur stars in landmark series win- Bangladesh v India, 2nd ODI, Mirpur

Rumi, June 22, 2015June 22, 2015

Bangladesh 200 for 4 (Shakib 51*, Ashwin 1-32) beat India 200 in 45 overs (Dhawan 53, Mustafizur 6-43) by six wickets (D/L method) Mustafizur Rahman was the hero in Mirpur again, (off)cutting through India’s batting with a six-wicket haul to add to his five-for on ODI debut, and launching Bangladesh…

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Zimbra Domain Administration (Multi-tenant)

Rumi, June 4, 2015

In order to create a multi tenancy in zimbra OSA, can be acheived through a bash script below. Thanks to Ahmad Imanuddin (http://www.imanudin.com) for sharing this very useful script. cd /srv/ vi admin-delegate.sh Fill with the following line :

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Zimbra Increasing Attachment Size works for 8.5

Rumi, June 4, 2015

Through zimbraGUI didn’t find it how to do it, but through console it appeared to be working with the following set of commands to modify postfix actually- su zimbra zmprov mcf zimbraMtaMaxMessageSize 20971520 zmprov mcf zimbraFileUploadMaxSize 20971520 zmprov mcf zimbraMailContentMaxSize 52428800 zmprov modifyConfig zimbraMtaMaxMessageSize 52428800 postfix reload Once theyre executed,…

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Two Default Gateways on One System

Rumi, May 21, 2015

Problem Description You have built two or more network cards into one Linux system and each of these cards has its own default gateway. By default, you can only have one default gateway on a system. The case described would lead to asynchronous routing, whereby the router would reject the…

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2 Gateways or Multiple Gateway on a single CentOS box

Rumi, May 21, 2015

Scenerio- eth0- 172.30.0.100 | Gateway- 172.30.0.97 eth1- 192.168.2.247 | Gateway- 192.168.2.1 Need to connect to SIP BOX destination (fictitious)- 202.140.1.1 eth0 has not internet access but it uses the mentioned (172.30.0.97) as gateway to reach 202.140.1.1 server eth0 has internet access by using 192.168.2.1 gateway. Here goes the configuration on /etc/sysconfig/network-scripts/ifcfg-eth0

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Proxmox VM path

Rumi, May 7, 2015

Backups /var/lib/vz/dump ISOs /var/lib/vz/template/iso Images /var/lib/vz/images Templates /var/lib/vz/template/cache

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Pf vs Iptables- a Great comparative article

Rumi, May 3, 2015

I enjoyed reading the following article, though would worth keeping a copy on my blog. Happy Reading- Today I will be talking a lot about OpenBSD, FreeBSD and other Unix-like operating systems from the Berkeley Software Distribution. I thought that would be appropriate being my first document on Unixmen. I…

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Cacti on Debian (Updated)

Rumi, April 19, 2015April 19, 2015

Downloading Cacti You can download the newest version of Cacti from its website. wget http://www.cacti.net/downloads/cacti-0.8.7b.tar.gz Installing Cacti Install apache webserver with php support, mysql database server, snmp, some php modules and rrdtool. apt-get install apache2 libapache2-mod-php5 php5 php5-cli php5-mysql php5-gd php5-snmp mysql-client mysql-server libmysqlclient15-dev snmp snmpd rrdtool Add a user…

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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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