NMAP Security Scanner on Linux Rumi, August 21, 2015February 11, 2017 First of all, you should get the “nmap” package installed in your system. On CentOS yum install nmap On Debian apt-get install nmap On Ubuntu sudo apt-get install nmap NMAP Commands: sudo nmap -sS [IP address] or [website address] sudo nmap -O –osscan-guess [IP address] or [website address] sudo nmap… Continue Reading
PEN: HTTP Load Balancer Rumi, August 15, 2015August 15, 2015 This is performed on a CentOS 6.x 64 bit machine Install pen which is lightweight simple Load Balancing software. It is TCP protocol based, so it’s possible to balance not only HTTP but SMTP, FTP, LDAP and so on. This example is based on the environment like follows. Configure Pen… Continue Reading
User management in Nebula Rumi, July 31, 2015July 31, 2015 Adding and Deleting Users User accounts within the OpenNebula system are managed by oneadmin with the oneuser create and oneuser delete commands. This section will show you how to create the different account types supported in OpenNebula Administrators Administrators can be easily added to the system like this: $ oneuser… Continue Reading
Reset Oneadmin password Rumi, July 31, 2015 In case of lost password you can use another user in oneadmin group to change the lost password: $ oneuser passwd –sha1 oneadmin ‘newpassword’ Or Change the password directly in the database: Stop OpenNebula daemons (this is needed as some data is cached). Connect to the database and get the… Continue Reading
How to login OpenNebula VM using Putty by public key exchanging Rumi, July 31, 2015July 31, 2015 Generating OpenSSH-compatible Keys for Use with PuTTY To generate a set of RSA keys with PuTTYgen: Start the PuTTYgen utility, by double-clicking on its .exe file; For Type of key to generate, select SSH-2 RSA; In the Number of bits in a generated key field, specify either 2048 or 4096… Continue Reading
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 Continue Reading
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. Continue Reading
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… Continue Reading
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 : Continue Reading
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,… Continue Reading