Posts

Let’s talk about Virtualization !

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  One car, one driver Look at the traditional datacenter infrastructure where single application runs on a single server so if you need to run 100 applications then you will be required to implement 100 physical servers, now just think about the cost of hardware, maintenance, electricity or power consumption and day to day operations for all these applications running on single physical servers. This is analogous to a single car, single driver, where the car helps get the person from "point A" to "point B" and the single driver represents the driver and sole passenger of the vehicle. If this were a single driver on a energy-efficient motorcycle or scooter, than would be reasonable, but people often drive alone much bigger vehicles,what Jeff would call "over-provisioning". Computer Chips have increased in processing power much faster than individual applications have increased their requirements, so as a result,you have over-provisioning. Carpooling - one b...

How to scan SMB V1 vulnerability in windows servers by scanning with nma...

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How to scan SMB V1 vulnerability in windows servers by scanning with nma...

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Installation & Configuration of IMAPSync Tool on Linux for IMAP Email Mi...

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Initialization & Configuration of Lenovo V3700 V2 SAN Storage Box - Part 1

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How to prevent sending external e-mail, but allow internal e-mail in Microsoft Exchange Server.

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Sometime may be you have internal & external domains configured in your organization and you don't want allow internal users to send emails outside the organization or to the public domains. You can achieve this using Microsoft Exchange Transport rules. Suppose you have all internal users in OU name "InternalMail" create a distribution group in the OU and add all internal users as member. Open up Exchange admin console " https://yourexchangeserver/ecp " and navigate to "mail flow" -> "Rules" Click the + button -> " Restrict messages by sender or recipient " In this example " extblk " is a distribution group. Added two conditions first is " the recipient is located " second is " the sender is a member of " Review the Rule mode is set to "Enforce" and leave other settings default and save the rule. You are done !

Installation & Configuration of IMAPSync Tool on Linux for IMAP Email Migration

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Step 1: Install Prerequisites sudo apt-get install makepasswd rcs perl-doc libio-tee-perl git libmail-imapclient-perl libdigest-md5-file-perl libterm-readkey-perl libfile-copy-recursive-perl build-essential make automake libunicode-string-perl libauthen-ntlm-perl libcrypt-ssleay-perl libdigest-hmac-perl libfile-copy-recursive-perl libio-compress-perl libio-socket-inet6-perl libio-socket-ssl-perl libio-tee-perl libmodule-scandeps-perl libnet-ssleay-perl libpar-packer-perl libreadonly-perl libterm-readkey-perl libtest-pod-perl libtest-simple-perl libunicode-string-perl liburi-perl cpanminus Sudo apt-get install libssl-dev Step 2: Install Perl Modules sudo cpanm JSON::WebToken Test::MockObject Unicode::String Data::Uniqid Step 3: Download IMAPSYNC Tool git clone git://github.com/imapsync/imapsync.git Step 4: cd imapsync Step 5: mkdir dist Step 6: sudo make install Note: May be you find the following error while compiling the tool; What you have to do before using imapsync: Install Perl mo...