As on Debian 7.0 Node.js is not included in standard repositories, if you want to install it login to server as a root and issue following commands:

apt-get install curl
curl -sL https://deb.nodesource.com/setup | bash -
apt-get install -y nodejs

If you use CentOS and want to add some extra packages you can use EPEL.

Extra Packages for Enterprise Linux is project created by Fedora.

In order to use repositories on CentOS first download and install RPM appropriate for your version of CentOS from here:

Method 1

http://dl.fedoraproject.org/pub/epel/

• epel-release-latest-5.noarch.rpm – CentOS 5.x
• epel-release-latest-6.noarch.rpm – CentOS 6.x
• epel-release-latest-7.noarch.rpm – CentOS 7.x

Then install it and enjoy more packages from new repo.

Method 2

[root@localhost ~]# yum install epel-release

Here is example from CenOS 7 how to add EPEL repositories:

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In order to create new Forest and promote Windows Server 2012 Core to be Domain Controller for that Forest, first Active Directory Services Role has to be added:

Install-WindowsFeature AD-Domain-Services –IncludeManagementTools

Once Active Directory DOmain Services role is installed we can promote server to be first Domain Controller in the Forest.

Install-ADDSForest -DomainName "lab.corp" -DomainNetbiosName "LAB" -DomainMode Win2008R2 -ForestMode Win2008R2 -InstallDns -Force

And after some time new Forest and Domain Controller is ready to use.

Here is one from friend of mine, very skilled Senior IT Engineer, Tomasz Jagiello. Some bugs he identified while working with VMware ESX 6.

Symptoms

VM running Windows 10 (x64) as the Guest OS is automatically reset after some hours (roughly a day). Reoccurs daily.

The thread said it also applied to Windows Server 2016 VMs.

There is an unrecoverable error that cause the VMkernel to shut down / restart / crash the virtual machine.

VMware ESX unrecoverable error: (vcpu-0) NOT_REACHED bora/devices/ahci/ahci_user.c:1530

Check if you’re using a para-virtual SATA adapter in the settings of the VM.

Cause

There is a VMware bug where if the SATA adapter receives SMART communications on a non-SMART device the CPU bus locks up and ESX reboots the VM.

I was using SCSI for the VM disks and SATA for the VM CD-ROM.

Workaround

1. Edit VM Hardware settings
   • Remove CD/ROM
   • OK
2. Edit VM Hardware settings
   • Remove SATA Controller
   • OK
3. Edit VM Hardware settings
   • Add CD/ROM
   • Change to IDE
   • Remove SATA Controller
   • OK

When you need to connect to ShoreTel ShoreGear via console cable (MAINT port on devices) set PuTTY Serial Line setting as follows:

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After installing Windows Hyper-V 2012 sometimes there might be some issues with remote management (even if enabled via sconfig).

In that case few firewall rules might have to be enabled on Hyper-V machine using PowerShell:

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When trying to recover my Lumia 820 from unsuccessful OS upgrade, phone went completely dead.

I was not able to turn it on or see any sign of activity in the device (boot manager damage happened probably).

At that stage I decided to look for tool which can recover my boot manager and then OS on Lumia.

Tool I found is available on Microsoft web site:

• Windows Phone Recovery Tool – http://go.microsoft.com/fwlink/?LinkID=525569

…and here is how it recovered my phone…

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Little issue with OpenSSL for Windows came out recently when I tried to create certificate request. Just after installation when tried to generate cert request got error message:

WARNING: can't open config file: /usr/local/ssl/openssl.cnf
Unable to load config info from /usr/local/ssl/openssl.cnf

Reason was that by default OpenSSL couldn’t find configuration file (even if it was located in same folder as excutable file).

So, to fix it just set environmental variable with information where openssl.cfg file is located:

set OPENSSL_CONF=c:\OpenSSL-Win32\bin\openssl.cfg

You can consider adding this to system environmental variables.

If you need to identify your public IP and have no possibility to run web browser of any kind you can use telnet.

In order to identify public IPv4:

telnet v4address.com

In order to identify public IPv6:

telnet v6address.com

Once connection is established autoresponder will show your public IP address:

This is the telnet autoresponder at v6address.com.
You have connected over IPv4.
Your IP address is 5.10.15.20

This might be helpful when using console on some *NIX systems or on the routers.

If you interested in cryptocurrency and want to support certain coin and community as well as earn some money, you might be interested in running MasterNode for chosen coins.

In this article I put together some quick guide how to setup ArcticCoin MasterNode. I have this MasterNode setup and running on dedicated VPS with Ubuntu Linux 14.04 64-bit.

So, once you identified hosting provider of your choice, check if you can deploy VPS with that operating system.

Once you have server deployed you can SSH to it as root and follow commands below…

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