Recently I have been experimenting with different kinds of servers in my home environment, and it was starting to get old having to reload the software onto the machines that I use for my testing and experimentation. If I suddenly wanted to try something else, I would have to wipe and reload the machine every single time I wanted to do something. Eventually this started getting old so I started to look into different opensource ways to virtualise my servers. It was during my searching that i ran across ProxMox. It is an opensource platform that allows you to create many virtual machines in the virtual environment, and allows you to start, stop, and replace them without having to touch the machine. Because it is open source, you can download it from their web site, however if you want any kind of personal support you have to pay for a licence. Installing ProxMox was pretty simple, and was just like installing any other kind of operating system on a machine. However once in the software, the graphical user interface is simple to use and is easier to learn. Accessing each of the virtual environments screens is simple with the built in console viewer on
If you tried to access the site recently, you may have noticed that the site was either, completely down, database was corrupted, or the site was missing content. All of that was because recently I decided to switch my hosting providers. I used to host this site on my own network, but when I renewed my email subscription on my domain, I ended up getting some hosting along with it. Currently, I am hosting this site on GoDaddy servers through C Panel. It seemed to take me a week of after-works to get hopefully all of the content moved over, and hopefully I did it correctly and got everything.
Please let me know if I missed anything!
Good afternoon my fellow party members,
I don’t know if everyone has been watching the news recently, but there has been a rash of large companies that have been brought to their knees due to large scale network outages. Some of the most noticeable is the recent South West and Delta Airlines outages. South West’s computers where down for almost three days, all because of a failed router. And Delta was down for almost an entire day due to a failed power switch, but in Deltas case, even once the power switch was replaced, it took them almost the entire day to restart their computer systems. And the fact that it effected their global business as a whole, shows that they haven’t prepared their systems for a major failure. From what reports say, Delta Airlines’ computer system is based off of a legacy system that is so old, It most likely loads its data off of original Floppy Disks, and tape cassettes. (I’m thinking more in the tune of the computer system from Captain America Winter soldier) But what is the most shocking to see, is the fact that their entire company has that one critical failure point. Their network is a hub and spoke network, that can’t function without the central hub. There is no interconnects between the spokes, and there is no backup datacenter that can take over the system load in case the main hub goes down.
For any company to make a data system that can be so unreliable in the event of a failure, must not really be concerned about their company’s ability to operate efficiently and smoothly in the event of failures. In the matter of failures that could plague a data operation, there are many things that could take a datacenter down. anything from power failures to fiber cuts, if it affects the connection to your datacenter connecting to the outer spokes of the business, it will effect the bottom line. There are however ways around this. To prevent your company from feeling the effects of a datacenter failure, a full mesh network is recommended. Mainly by using multiple slightly smaller data centers. By having multiple datacenters that replicate data across the network, you can ensure that the spokes of your network will always have a place to connect to.
So what’s better? Spend the money now to make the profits later? Or save the money now to loose money later?
Just some random stuff this time,
First, if you were wondering and you can’t tell, this sight is a WordPress site. I chose a WordPress site, because of its ease of operation, and the fact that I could get a ready to run image up and running to run the site in a matter of an hour.
Second, WordPress is running off of a Turnkey Linux core. Part of the reason I could get it up and running so quickly!
Lastly, for hosting, I decided to go with a hosting solution that I could trust. A hosting provider that if there was any down time, I would know exactly what is wrong, and would know exactly how long it will take to repair the issues. And that hosting provider? None other than myself!
I figured if anyone was wondering, this is how everything goes together. I figure why should I pay for hosting, when I can do it all myself!
First of all, sorry for the delay in posting. As usual I travel on the weekends to remote locations that don’t have any kind of connections what so ever. I did take some photos, those of which, I will upload later on once I get them off of my camera and sorted out. But this weekend, I left my Samsung Galaxy Note 5 out in the sun while it was in its case, and when I retrieved it (off the dashboard of the boat), I checked the internal temperatures using an app called CPU-Z. One thing I found interesting, was that the Snapdragon Octacore processor was still able to perform reasonably well even though its temperatures had peaked past one hundred seventy five degrees Fahrenheit. Parts of the battery where at one hundred and fifty degrees, and the overall core of the battery was just past one hundred and thirty. However, despite the extreme temperatures, the phone still played music without skipping a beat. But those temps got me to thinking about what powers the phone and how delicate that one component actually is.
The lithium ion batteries that power our devices, if they are anything similar to the batteries that power RC cars and drones, seem to not like sharp impacts or extreme heat. And when you charge these batteries, you are told to put them into bags that are made out of a puncture resistant, fire resistant materiel, in case the battery decides to “do other things.” And on that point, I have been seeing more and more reports about phones “exploding” in the pockets of their users. As just a few days ago, an Australian man’s iPhone exploded after he fell on top of his iPhone and received third degree burns because of the resulting fire.
So what are the phone manufacturers not telling us about these phones? Is your phone a potential ticking time bomb? Will it randomly explode the next time you make a phone call? Probably not. As for what are the manufacturers not telling us about our phones? They have nothing else they should need to say. As in every box that a new phone comes in, there is an instruction manual that warns about the potential dangers of lithium ion batteries. But those warnings mainly focus on “Do not puncture” or “Do not put in fire” or “Do not expose to extreme heat.”
In the case of the Australian man’s exploding phone, the reason for the explosion was very simple. When he fell on his iPhone that was in his back pocket, the battery suffered from some sort of trauma, and had the internal structure of the battery damaged. And depending on the previous damage and the age of the battery, the forces that where acting upon the phone during the accident, could have been just enough to send the battery over the edge.
So what is causing these lithium batteries to explode? It’s a process called thermal runaway. When a lithium cell is damaged and causes a short circuit, the cell will start producing more heat than what can be expelled. As more of the internals of the battery start to melt down, the more heat that is produced. Finally, enough heat is being produced, the electrolyte inside will combust, causing a fire. The “exploding part is caused by the pressures built up inside of the battery will cause the surrounding packaging to pop, thus releasing the burning electrolyte.
Now there are hundreds of millions or more lithium batteries being produced every year, and billions of lithium batteries being used currently. And the number of reported cases of lithium batteries exploding are still surprisingly low. However, a number of cases involve E-cigarettes, which work by creating a short circuit and heating a coil that vaporizes the liquid in the chamber. Mind you the key word here is short circuit, and what happens when a lithium battery short circuits? It goes poof.
But exploding batteries can also be caused by improperly charging them at the wrong current and voltage, physical damage to the cell, and extreme heat.
But all in all, there is no reason to panic, your phone is not going to randomly explode. As long as you don’t leave your phone in the sun, or smash it. Plus, try to refrain from dollar store chargers, as they usually are missing all of the safety circuits that are present in the stock chargers. And the chances your phone are going to explode? Probably won’t happen to you ever.
Today at work, I ran across the issue of trying to find my computers Service Tag, without undocking the computer and flipping it over, mainly because that would take to long waiting for the computer to get its network connection back, plus the excel sheet i was adding the Tag into was open on the laptop.
After a quick lookup on the internet, I found the solution to my problem!
wmic bios get serialnumber
Running this simple command, I can get the Service tag that is stored in the BIOS.
WMIC extends WMI for operation from several command-line interfaces and through batch scripts. Before WMIC, you used WMI-based applications (such as SMS), the WMI Scripting API, or tools such as CIM Studio to manage WMI-enabled computers. Without a firm grasp on a programming language such as C++ or a scripting language such as VBScript and a basic understanding of the WMI namespace, do-it-yourself systems management with WMI was difficult. WMIC changes this situation by giving you a powerful, user-friendly interface to the WMI namespace.
WMI has been around since about the beginning of windows, and WMIC has been around since Server 2000 and Windows XP
Hey all! I’m sorry for the down time! I was making some DNS changes for one of my other domains that I own and I somehow ended up changing the wrong domains DNS settings!
Sorry bout that!
Multi-protocol Label Switching (MPLS) is a type of data-carrying technique for high-performance telecommunications networks that directs data from one network node to the next based on short path labels rather than long network addresses, avoiding complex lookup’s in a routing table. The labels identify virtual links (paths) between distant nodes rather than endpoints. MPLS can encapsulate packets of various network protocols, hence its name “multi-protocol”. MPLS supports a range of access technologies, including T1/E1, ATM, Frame Relay, and DSL
MPLS is a network setup that I use at work on a day to day basis. The company work for pays another company that provides the MPLS layer to us. This Network As a Service company helps get the internet connections for each of our stores, and connects them into the MPLS network, providing secure communications between the stores and the data center. This new MPLS layer will replace the older aging VPN tunnels that link the stores to the data center.
One of the great beauties of MPLS, is the fact that it essentially makes your connections between locations, into a full mesh network. And if each site is configured with a backup connection, there will essentially be zero down time.
MPLS operates at a layer that is generally considered to lie between traditional definitions of OSI Layer 2 (data link layer) and Layer 3 (network layer), and thus is often referred to as a layer 2.5 protocol. It was designed to provide a unified data-carrying service for both circuit-based clients and packet-switching clients which provide a datagram service model. It can be used to carry many different kinds of traffic, including IP packets, as well as native ATM, SONET, and Ethernet frames.
So the other day I came across a problem, that I couldn’t quite figure out. I wanted to be able to self host this WordPress blog, and also have my media server still be able to be connected to from the outside. So I figured that the easiest way to do this would to contact my provider (Comcast) and try to get two external IP addresses. I figured, heck if I do it at work all the time, why cant I do it here? Well according to Comcast, each device can only have one IP address on it at a time, and that having two external IP addresses is not allowed. They did not tell me how I can obtain a second IP address, or even try to figure out what they can do for me. I figure though, I may just have to break down, and get a Comcast Business account so i can have as many IP addresses as i want.
Also, currently this page is accessible from vpn.lbit.us, but i will be changing that soon, to probably either the default lbit.us or to www.lbit.us. However, no one will relay notice, as I believe I am the only one who uses this right now.
Another thought just occurred to me, why not get a second provider to handle the lighter workloads? I could get a cheap DSL line for about $30 where I am at, and that could handle this WordPress site? I have the modems and routers to handle the connection, so i don’t believe that would be a problem at all!
I have figured out a way to segregate my posts into different areas! If you click on the tabs on the left hand side of the screen, you should be able to see all of just that one category! I will only be putting up the major categories there though!