When you are networking computers, wireless access points, printers and other nodes in multiple rooms, try to avoid daisy-chaining switches or using small 4-8 port switches when you are in a hurry. Replace any hubs on your network as soon as you can.
With a hub, collisions can be >20% and utilization can stand at >50%. By replacing a hub alone, you can reduce collisions to 5% on switches in rooms and <1% in the server room. Switches help to isolate traffic, relieve congestion, separate collision domains (reduce collisions), segment and restart distance/repeater rules.
Daisy Chaining Switches -what not to do
Real world scenarios may require you to temporarily daisy chain switches. If you do, test the network and run additional backbones or replace core switches to accommodate more nodes as soon as you can. (remember, replace any hubs in your network)
One of many solutions is to run independent lines to the core switch
This is the very basics behind network switch infrastructure. Managing switches and using the IEEE standards above along with optimizing your network and managing the network infrastructure is important.
You can set a program that may use only one of your processors to use more than one. How? Open the Task Manager by right clicking on the taskbar. Next click on Details, sort the programs and right click on your program. Next select processor Affinity. Select all of the processors you want.
When you reboot, any changes you made will return to the default.
What you can do in order to always have processor affinity when a program starts-
Thank you Andrew for finding this! Many forums will tell you to re-install windows or to mess with the HAL in order to show multiple cores after changing processors. Kasey (one of our students) changed his quad-core processor to a hexacore processor. Once he booted up he only saw four cores. Andrew discovered an easy fix by using EasyBCD. Here’s what you do. Download EasyBCD
Install the Software
On the menu, Click on Advanced Settings
Limit Windows to (Change the CPUs to 0 Zero) – Yes this is correct
Once you reboot the task manager will show all of your cores.
EasyBCD is a boodloader that does so much more than fix the number of CPUs seen by your taskmanager. It allows you backup and restore your BCD settings, allows you to setup your MBR (Master Boot Record), repair boot files, helps you to diagnose boot problems, limit CPU or memory usage for older programs.
While NTFS is a reliable file system, Windows 10 can have ReFS enabled for data drives and some external drives. What exactly is ReFS?
ReFS is Resilient File System. ReFS insures data availability, supports large file systems without a performance hit and has a Scrubber that supports Acute Error Correction. It supports up to a Max. Volume size of 1 yobibyte (280 bytes) and a Max. file size of 16 exbibytes (264−1 bytes).
So how do you enable it? (Caution- Perform these steps at your own risk)
FIRST – make a backup and create a restore point. Then – right click on the menu and select run. Type regedit. Navigate to –
Next create a DWORD and name it –
RefsDisableLastAccessUpdate and set its value to 1
Next navigate to –
(Note: You may have to create this Key)
Under this key, create AllowRefsFormatOverNonmirrorVolume and set it to 1 (its value)
Unlike Fat32, you cannot use the convert command to convert to ReFS. You must backup your data first. You also cannot use it on your system drive and boot with ReFS.
The great thing about vocational and technical education is usually the cost, instructor(s) who have worked in the industry, true hands on, a quick classroom to career time and a higher than average placement rate. So once you graduate are you done with education? No.
Today education comes in every format you can think of and with Information Technology, you can’t stop learning or your career can grow stagnant. With seminars, webinars, MOCCs, supplemental college courses and more, every topic imaginable can be found at colleges and universities worldwide.
While MOCCs are sometimes controversial, many employers are taking the certificates offered by these institutions. If you have never taken one, I challenge you to do just that. They are excellent learning tools and the standards are becoming higher.
Several months ago I took a course at Coursera from the Royal Holloway: University of London – Malicious Software…
Since the mid 90’s I’ve worked in a full-time class and I’ve taught a night class in information technology. It’s an arduous job working 70 hours a week. But there’s something I can always count on. I can always count on a visit from one of our best students.
Several years ago a graduate, Avondale Hutson-Fowler, was in our class. She worked a full-time job and went to school while being a mom. Avondale is an Air Force veteran who now works in information technology.
Avondale graduated in the spring of 2011. Since her graduation, she’s worked help desk and was promoted quickly into her current position as a IT Security Account Administrator with a major contractor near Nashville, Tennessee. Avondale has unconditionally supported our program. She’s been a cornerstone in the promotion of technology and IT news while promoting the CIT program through social media. She’s one of the…
That’s right, you’ve earned your way through technical school or college only to land at a help desk job. Take a second and look at the logic behind this. IT professionals over the years have landed at help desk and the successful ones deliver quality service to the end users. IT Managers, Directors or CIOs just can’t put someone in their server room without adequate experience troubleshooting computers. An understanding of the operations of your organization starts by being exposed to all of the software and inner workings of the company. Can you land that job in the server room or as a network admin? Sure. Reality is that it is rare. It takes time, trust and experience.
When surveyed, IT professionals have a deeper respect for that manager that has done their time at help desk. Many professionals do their time in this role and elect it as a career. If you do your time and continue your education by getting more certifications, going to seminars and electe to attend a higher educational institution, you can work your way up the IT ladder.
The stress of help desk is different than any other stress. While you have to put on your happy face and deliver quality service to your clients, it all starts at this level. The redundancy of calls, end-users who are frequent callers and the general grind of problems coming at you that appears to never end causes this stress.
IT managers and upper management in this field take notice of the people who excel at customer service. IT is a service based career and help desk is your starting point for your career. Ironically problems in this field go up to the higher level IT professional and solutions have to be pushed down in order to keep everyone happy.
Being positive and upbeat while you do your time in the trenches will bring that recognition to you. It also allows you to place this experience on a resume for future jobs and positions in your organization or with different companies.
After decades in this career, I can point out hundreds of students who kept this attitude and later in their careers became more successful in IT. There seems to be a sense of entitlement going through the IT field. See help desk as a starting point to move up. What about an example of someone who worked their way up?
One such example is Eric Canneer. Eric started his career in IT as level I help desk and performed well while keeping a positive outlook. During his career he never stopped learning and later was hired by one of the world’s largest logistics company and now manages their wireless globally. While Eric is one example, hundreds of more examples come to mind. I’ve had students who 95% of the time start help desk and over a period of one or two years worked their way to higher level positions in some of the country’s Fortune 500 companies and in every type of business and industry you can think of.
Are you truly ever out of a help desk position? No. You may not have that grind of answering phones daily but you are trying to please the end user and the problems never go away. With a society that thrives on technology, you have to accept that innovation and new technology brings on new problems and headaches.
Handling the stress of help desk and continuing your career in IT-
Accept the fact that you are in customer service regardless of your position
Obtain higher level certifications
Continue your education with a higher-ed institution – Don’t take an IT job too soon and don’t leave school before getting your diplomas and certifications.
Realize that the customer is venting at the situation and not you
Help other IT personnel and work as a team
Ignore any negative personnel who bring you down
IT is in the top ten growing industries and the opportunities are greater than any other career
Find ways after hours to relax and get away
Information Technology will continue to grow and positions will continually be added in this field. Less than five years ago, we didn’t truly have mobile computing experts that took care of a field that is growing at an unprecedented rate. Become an expert in several fields and prove yourself not only to your managers and company but prove yourself to you.
Windows has scanned the file system and found no problems.
No further action is required.
210265706 KB total disk space.
85477192 KB in 194156 files.
164792 KB in 45090 indexes.
4 KB in bad sectors.
628894 KB in use by the system.
65536 KB occupied by the log file.
123994824 KB available on disk.
4096 bytes in each allocation unit.
52566426 total allocation units on disk.
30998706 allocation units available on disk.
Over the next several months we plan on interviewing technical experts and leaders across the globe to find out how they got started in the technology industry, what their favorite operating systems are, information security trends and more.
This month we reached out (by email) to Shannon Morse, a leading technical expert in consumer technology, internet security and just about anything technical you can imagine. Check out her website and don’t forget to go over to Hak5 for information security videos, how-tos and a whole lot more.
Steve-. How long have you been in technology and what got you interested in pursuing tech as a career?
Shannon -I started becoming interested in technology as a hobby when I was a small child. My father would take me to local computer shops and he would let me watch him build computers and install software. In my early teenage years, my dad allowed me to build my first personal computer with his help, which really got me interested in learning more about the internals of PC technology and understanding it as a whole. As I grew older, I developed other interests such as working in theater as an actor and working in the service industry, but I always had an inclination towards technology. When I went to college I focused on another passion of mine – running a hospitality or restaurant business – so it wasn’t until I met the Hak5 crew in 2006 or 2007 that I really saw the ability to mold not only my love for theater and entertaining but also my love for technology into a real life job, and this job didn’t exist when I started college several years prior. I’ve been with Hak5 for almost a decade, and over that course of time I’ve also worked with many other podcast networks such as Discovery Digital Networks (an online subset of the Discovery Channel company), TWiT, and Sony. I’m grateful that I’m able to do what I do now as an online media presenter as it gives me the chance to continually learn and develop my own education.
Steve– You are very proficient and an expert on nearly all operating systems. What is your favorite OS and why?
Shannon-First off, thank you for saying that! I’ve worked hard not to monopolize myself into one operating system or mobile OS, because I think it’s important to understand them all. My current favorite desktop operating system is Linux because of it’s wide use in smaller devices and availability. I am currently using Ubuntu, but am proficient with Kali, Mint, and some other Linux distros. I find it fascinating that Linux OS’s are used to operate important infrastructure as well as run tiny Raspberry Pi-like PC’s for home use. I love a Linux distro’s ability to be customized to a users preference but still be user friendly as well, while still being free to run. For mobile, I prefer Android. I enjoy the flexibility of Android OS and it’s usefulness for OTG testing (such as the ability to use it with an external radio adapter for software defined radio).
Steve– With security being a ‘hot’ topic in today’s world, what applications and skills do you see as being needed for IT personnel with medium and large companies?
Shannon-Security should always be a hot topic, not just a fad that shows up because it hits a few news articles online. I feel that security should be a leading focus of any business that works with users on a day-to-day basis, specially when user data is a part of that business entity. I think that it’s important for IT personnel to get proper training in logical security and privacy when first joining a company because a human being is the first and most often point of failure when it comes to breaches in a network. Having an understanding of networking, simple reconnaissance and ability to recognize attack vectors would be extremely useful as they would be the first people in a company to notice something and report it to an Information Security professional. Specific tools an IT professional would use would vary depending on their company, but I’ve found some such as Wireshark, Netcat, NMap, and the WiFi Pineapple (a Hak5 branded device) would be crucial, and surprisingly simple to use even for newcomers.
Steve– What do you recommend for girls/women in tech to stay ahead of the curve and on-track for a technical career?
Shannon -First and foremost would be to not let yourself be singled out in the work force as “the woman”, as if that is your only bargaining chip. Being a woman in a technical field is definitely tough, because we are often judged on things that do not actually matter for the job (like our makeup, hair, intonations of voice, etc). For the first five years or so with Hak5, I did not speak up for myself very much when being criticized for things that didn’t necessarily matter. But as I’ve become more confident in my own job as an influencer in the infosec community and as someone who believes everyone should be treated fairly, I’ve learned that a part of that job is speaking out against discrimination and being a voice of reason when another voice may not be heard. Bringing ideas to meetings and showing that you have a passion for your job is very important when trying to stay ahead. For anyone, ongoing education in the ever-changing market should be seriously considered.
Here is the list of fixes offered by FixWin 10 for Windows 10.
– Recycle Bin icon is missing from Desktop
– WerMgr.exe or WerFault.exe Application Error
– Folder Options is missing from Control Panel or has been disabled by administrator or malware
– Fix Recycle Bin when its icon doesn’t refresh automatically
– Explorer doesn’t start on startup in Windows
– Thumbnails not showing in File Explorer
– Reset Recycle Bin. Recycle Bin is corrupted.
– CD drive or DVD drive isn’t recognised by Windows or other programs
– “Class not registered” error in File Explorer or Internet Explorer
– “Show hidden files, folders and drives” option isn’t shown in Folder Options
Internet & Connectivity
– Right Click Context Menu of Internet Explorer is disabled
– Cannot connect to internet. There’s some problem in Internet Protocol (TCP/IP)
– Problem regarding DNS resolution. Fix it by clearing DNS resolver cache
– Long list of failed and installed updates. Clear Windows Update History
– Problem with Windows Firewall settings. Reset Windows Firewall Configuration
– Reset Internet Explorer To Default Configuration.
– Runtime errors are appearing in Internet Explorer while surfing
– Optimize Internet Explorer maximum connections per server to download more than two files at the same time
– Internet Options are missing in Settings under “Advanced” tab of “Internet Options” dialog box
– Repair Winsock (Reset Catalog)
– Having problem downloading Apps from Store. Clear and reset Store cache
– The Application wasn’t installed from Windows Store. Error Code: 0x8024001e
– Windows Store apps not opening. Re-register all apps
– Reset Settings app. Settings doesn’t launch z
– Disable OneDrive. OneDrive runs in background and syncs huge amount of files.
– Repair corrupt Windows Component Store z
– Start Menu doesn’t work or doesn’t open in Windows 10
– Wi-fi doesn’t work after upgrading to Windows 10
– Windows Updates stuck downloading updates after upgrading
– “Task Manager has been disabled by your administrator” or Task Manager Option is disabled
– “Command Prompt has been disabled by your administrator” and can’t run any cmd or batch file
– “Registry Editor has been disabled by your administrator”
– Enable MMC Snap-ins. Some viruses disable Snap-ins which prevents Group Policy (gpedit.msc) and similar services to run
– Reset Windows Search to defaults. This will fix issues related to Windows Search
– “System Restore has been disabled by your administrator. Please contact your system administrator.”
– Device Manager isn’t working properly and not showing any devices.
– Repair Windows Defender. Reset all Windows Defender settings to default.
– Action Center and Windows Security Center don’t recognise installed AntiVirus or Firewall or still identifies old AV as installed.
– Reset Windows Security settings
– Under a seperate Advanced System Information tab, you can seee specifications of your system like number of threads in processor, number of logical processors, maximum display resolution, maximum refresh rate, etc.
The following built-in Windows troubleshooters can be launched directly from FixWin:
– Playing Audio
– Recording Audio
– Shared Folders
– Internet Explorer Performance
– Internet Explorer Safety
– Windows Media Player Settings
– Windows Media Player Library
– Windows Media Player DVD
– Internet Connections
– Hardware and Devices
– Incoming Connections
– System Maintenance
– Network Adapter
– Windows Update
– Search & Indexing
Plus: Links to troubleshooters that fix:
Mail & Calendar apps crashes
Settings app does not launch
Windows 10 Printer troubleshooter
Windows 10 Store apps troubleshooter
– Enable Hibernate. Hibernate option is missing from Shutdown options
– Restore the Sticky Notes delete warning dialog box
– Aero Snap, Aero Peek or Aero Shake isn’t working
– Fix Corrupted Desktop Icons. Fix and rebuild corrupted icon cache.
– Taskbar jump list is missing or doesn’t store MRU file list
– Notifications have been disabled
– Windows Script Host access is disabled on this machine
– Office documents do not open after upgrading to Windows 10
– The recovery image cannot be written. Error code – 0x8004230c
– Windows Media Player shows following error: “An internal application error has occurred.”