mshv

Introduction

Windows Server 2012 has a new version of SMB which makes it possible to store virtual machine files on a Windows Server file share. This can make your virtualization infrastructure design less complex as it is in case of iSCSI and MPIO usage for example.
There is also one great feature in SMB since version 2.2 – SMB Multichannel. Together with NIC teaming it aggregates NICs making them redundant and dynamically creates multiply connections making it possible to split one network stream between several network interfaces. As the result the connection is not limited by a speed of one network interface anymore, but a summary of NICs in the team.

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Openfire: Certificates

Posted: 28/04/2015 in Linux

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After you install Openfire it’s shipped with self-signed certificates, which you can use or replace with your own certificates. Why actually you need certificates? First thing is you admin panel, second is the client-server communication. There is no problem for one or couple Openfire admins to accept once the self-signed certificated, but second part is more difficult. Spark doesn’t complain meeting a self-signed server certificate, but Jitsi for example does. So, it’s better to use your own signed certificates.

You have to install additional packages before to start:

# yum install –y java-devel openssl

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Connection Manager is an Openfire module which scales your Openfire and can handle up to 5000 client connections. The good usage of it can be a publishing into Internet for external connectivity. Putting this into a DMZ network provides additional layer of security and scalability to your enterprise. Connection managers have the same 5222 and 5223 incoming TCP ports and one additional outcoming 5262 for connection to Openfire server.

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“Openfire is a real time collaboration (RTC) server licensed under the Open Source Apache License. It uses the only widely adopted open protocol for instant messaging, XMPP (also called Jabber). Openfire is incredibly easy to setup and administer, but offers rock-solid security and performance.”

Ignite Realtime community

It’s a great opensource Instant Messenging system roughly saying and  here I’d like to share my experience of Openfire 3.10.0 installation and basic configuration on Linux Centos 7.
In this example Openfire stores all its settings in a MySQL database and users are taken from Microsoft Active Directory.

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This simple script can be used for the case when you have to create a bunch of home folders for domain users on a file server and to grant them necessary permissions on corresponding folders. It’s also possible to create just personal folders on a server without assigning them as home folders. It can be executed directly on a server or remotely through network for shares using UNC paths.

First example is for the case when users reside an OU in Active Directory. It creates folders, sets permissions for their owners ans setup home drives for user accounts to connect.

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This script was created to get network adapter’s information from remote machines. It connects to machines defined in a text file using WMI query, looks for enabled network adapters and shows their settings. Simply can be adapted using Quest snap-in to get settings for all domain machines or for computers from a defined OU. Some of NIC’s settings comes up as objects, so, to make possible csv extraction I put [string] before those settings and used Join with coma separator.

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