Author Archives: George Valentin Voina

Private cloud is a must not a failure

By | February 9, 2017

I keep reading this scare-ware articles from a lot of technical sites about the private cloud model being a failure.  Like this one http://www.techrepublic.com/article/private-clouds-very-public-failure/?tag=nl.e101&s_cid=e101&ttag=e101&ftag=TRE684d531. What a load of BS. Private cloud fails only when the organization has no idea how to manage it. This is valid for any IT related operation. Trusting the data of… Read More »

Disable WebRTC to hide real IP when on a VPN

By | February 9, 2017

According to Daniel Roesler there is a privacy issue even if on VPN due to WebRTC. Your real IP can be disclosed by WebRTC. He made also a test page for this WebRTC test page. There is already a fix for your browsers : Firefox: Disable WebRTC Chrome: ScriptSafe    

Backup setup for two HP Microserver Gen8 NAS servers – part2

By | February 10, 2015

This is a followup of the first post Backup setup for two HP Microserver Gen8 NAS servers . The new HBA arrived , an HP LSI 9217-4i4e 8-port SAS 6Gb/s RAID Card which is in fact the HP OEM version of the LSI 9207. The positive: it came with three different SAS to 4xSATA cables. The negative: it came only… Read More »

Mixed DIMMs in HP MicroServer Gen8

By | February 8, 2015

Idea is that I have 2x8GB Kingston in one MicroServer and 2x2GB HP the original memories in the second. I was wondering how the 1x2GB+1x8GB= 10GB combination for both servers will work. I know that Intel Pentium G2020T is Dual-Core: “Ivy Bridge” and has Fast Memory Access, Flex Memory Access.  so should be OK. Actually… Read More »

voina.org Internet Speed

By | February 9, 2017

The standard connection from UPC Romania with my subscription 200Mbps/6Mbps. Good download crappy upload. I just found out there is a new 500Mbps/25Mbps plan in my city , Cluj-Napoca. I am going to try it asap. I am wondering how will my router cope with that. Linksys E4200 has a tested WAN to LAN Throughput… Read More »

Monitoring Fedora servers with NAGIOS

By | February 15, 2017

This is a description of the installation process of NAGIOS monitoring on two Fedora21 based servers. Choose one server as the main nagios host. Lets call it nas1. Add nagios users , group and add apache as member in the nagios group: # useradd nagios # groupadd nagcmd # usermod -a -G nagcmd nagios #… Read More »

Time Server Setup for a Fedora/RedHat Linux environment

By | February 7, 2015

Having several machines based on Fedora/Redhat, to ensure a smooth functioning of the environment a time server has to be set-up to make sure that all the servers are on the same time. We are going to use the Fedora/RedHat available time server ntp. On all the servers install the server binaries: # yum install… Read More »

Strong SSL Security on OwnCloud

By | May 29, 2017

Having an OwnCloud installation on the home network is very useful but to use it at the maximum potential you got to open it to the world. One of the best tutorials to install OwnCloud on Fedora 20+ is the online tutorial from BitFresh. By following all the steps you get a nice secure OwnCloud… Read More »

How to backup a NFS resource with Barracuda Yosemite Basic Server

By | February 6, 2015

In a discussion from the Barracuda Yosemite support forum initially talking about the compression (or lack of ) for LTO-4 backup, I obtained the answer to the additional issue of backing up NFS resources across the network. Bellow the required configuration exactly how it was posted by one of the forum moderators Matt Orme.  … Read More »

Backup setup for two HP Microserver Gen8 NAS servers

By | February 8, 2017

I am using two HP MicroServer GEN8 as NAS servers with the following setup: NAS1 (Linux Fedora 21): LSI SAS 9207-4i4e Host Bus Adapter Kit (4 Port Internal, 4 Port External, 6Gb/s SATA+ SAS, PCIe3.0 HBA) RAID1 : 2x WD Red 5GB on the LSI HBA – RAID1 data read speed is around 145MB/s so… Read More »