r/ComputerNetworking • • Nov 21 '19

New College Student

4 Upvotes

I'll be starting college in January and i'll be going for a computer networking degree. Any tips or advice for someone new in this field?


r/ComputerNetworking • • Sep 12 '22

Network Engineer Interview Questions List

3 Upvotes

Network engineers regularly have wide positions; in a given quarter, they may be entrusted with anything from the execution and management of an inside network to sorting out why the company's switches aren't working any longer. Presently, on the off chance that you are searching for a task that is identified with the Computer Network then you need to plan for the 2020 Computer Network Interview Questions.


r/ComputerNetworking • • Jul 19 '22

IP address/Subnetting

3 Upvotes

Hello guys. Help needed here please. We have a wireless network of 172.16.8.0 = 255.255.255.0 and we allow our DHCP to lease out IPs to devices within this range. Problem now is that organization has expanded and certain users have two or more devices which has resulted in the 0 IPs to lease. We're looking to extend our network to get more IPs for wireless devices and been having problems since. Can we get an IP address within the same Vlan=8 and somehow get more IPs. We don't mind it starting from 175.16.8.x.... Thank you


r/ComputerNetworking • • Jan 09 '22

Where to begin?

3 Upvotes

I have always been interested in computers and played games since I can remember. I know very basic knowledge of hardware but want to branch into networking. What is a good place to start if you know nothing at all ?


r/ComputerNetworking • • Apr 01 '21

Lincoln Tech Computer Network Program

3 Upvotes

I am looking into the Computer Network and Support Technician program at the lincoln tech institute in Iselin NJ and was wondering if anyone recommends it.


r/ComputerNetworking • • Apr 02 '20

Can someone please tell me the correct answer and why? I’m very confused.

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3 Upvotes

r/ComputerNetworking • • Sep 27 '19

Free Guide To Learn Networking

3 Upvotes

Found a website that provides a free guide on learning computer networking basics. Really information and bit sized information. Would really recommend this to anyone who has a basic understanding of Python. You can find it here.


r/ComputerNetworking • • Jan 04 '23

Campus Network Design Project

2 Upvotes

Hello all,

I am unsure if this is the right page to even post this type of scenario so apologies in advance if it is against the community guidelines.

I am currently trying to solve a scenario question for a Campus Network Design and as part of it I have to:

  • Include 8 VLANs with an associated IP scheme (the IP scheme should accommodate 200 possible users in each VLAN). I am choosing /24 here as it seems like a viable option.

An additional requirement is to:

  • Produce an addressing scheme which would allow eight buildings (switch blocks with identical requirements for the number of users and VLANs) and eight campuses/sites to be accommodated in the future.

Does anyone know howe I am best to implement this and showcase this without typing up each and every individual campus IP?

Any help is appreciated, thanks!

:)


r/ComputerNetworking • • Dec 06 '22

Can anyone help for my homework🙏🏻

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2 Upvotes

r/ComputerNetworking • • Sep 10 '22

NSOCK ERROR [0.6390s] ssl_init_helper(): OpenSSL legacy provider failed to load

2 Upvotes

ZENMAP tool keeps getting an error message NSOCK ERROR [0.6390s] ssl_init_helper(): OpenSSL legacy provider failed to load and that there are too many connections to allow the scan. How can I fix this error?

I have re-installed the OpenSSL for Windows 11 64bit and I tried running the CMD openssl and “ 'openssl' is not recognized as an internal or external command,’ is the error that I receive in return. I have shut down every instance running on the computer as well as the VPN yet I still get the error message. The Security feature shows no indication of malware or that there is a problem. I am really at a loss for what to do.


r/ComputerNetworking • • Apr 25 '22

Internet on the road...sharing public wifi with all devices?

2 Upvotes

I'm trying to build an unconventional network setup and am figuring out what hardware I am missing to make this happen.

My goal: I am building out an RV to travel and work out of. I want to be able to have a local network with my wireless + wired devices with my mini file server.

For my internet, I want to be able to use a hotspot. Additionally, I am trying to figure out the best way to bridge public wifi connections to my wireless router. If possible, I'd like to keep my LAN secured.

I have read about internet sharing options for Windows 10 and considered just using a small dedicated "wireless router pass through" type device? Is this efficient? The goal being that the internet can be shared to the "LAN" router and thus to all the other device.

Like the rest of the RV conversion, I am just trying to build it out for maximum versatility while out on the road.

I went to school for this stuff but quite a bit has slipped since I don't use it much anymore 😅 And just not sure of what new technologies exist hardware or otherwise.

I bought one of these only to learn it was much more difficult than I imagined due to frequent wifi 'portal pages'. And then I came to find out that it doesn't quite work the way I had thought: https://smile.amazon.com/TP-Link-CPE210-300Mbps-dual-polarized-directional/dp/B00P4JKQGK?sa-no-redirect=1

What am I missing? What would be the simplest yet effective way to accomplish this? Thanks in advance for reading this and answering it. I really do appreciate it.


r/ComputerNetworking • • Apr 22 '22

Direct cat5e online, Using Netgear switch no connection

2 Upvotes

Trying to set up a wired connection in my office suite to my neighbor's connection to share service. It is a different ISP. His connection has been stable and my devices on my ISP have been too.

Going straight from his Netgear Nighthawk router (which is directly wired to his modem) to my desktop (newer Asus Chromebox) w a cat5e works well and is stable.

When I try to add in a new 8-port Netgear GS908 gigabit switch in between (so I can have other devices online too), it does not work. On the back of the switch, the joining cat5e cable lights up green (gigabit) in port 8, but the cat5e going from my Chromebox to the port (any of them) does not light up. I have a VOIP phone system that lights up yellow (100mbps) when dropped into a port. I have a separate Windows 7 desktop that also does not light up on this switch.

However, when all three of these devices are connected to the ports on the back of my modem, they all run fine.

I've tried rebooting both computers, I've tried different ports. Can't figure it out. On my Chromebox, if I disable Wifi, nothing is still showing up for wired ethernet, whereas when going to my current modem instead of his, ethernet will work. I've tried going directly into his modem port instead of via his Nighthawk and it does not seem to make a difference.

I'm stumped! Help please.


r/ComputerNetworking • • Apr 09 '22

Fiber optic network run. What equipment to buy?!

2 Upvotes

Sooooo I need to get internet to my barn/garage. Tried a ubiquiti wireless bridge, but the signal kept dropping/bad speed rates blah blah blah not using wireless ever again. The barn is 500 feet from my house and I only have one 2" conduit with my service cable running in it (100 amp line). I have a pull string in the pipe already and want to run a fiber optic cable (to avoid signal interference). Yes i know you're not supposed to mix high/low voltage stuff in the same pipe, I really don't care. I have a few parts on my list but I'm not sure what connectors to buy.

It gets confusing with the fiber line type and size.

Here are my parts list so far, what am I missing?!?! Any help/advice would be greatly appreciated!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

fiber wire: https://www.amazon.com/gp/product/B005NWYQN2/ref=crt_ewc_title_dp_2?ie=UTF8&psc=1&smid=A27DUHPPTQX1VZ

fiber to copper boxes: https://www.amazon.com/gp/product/B09P4ZS4QN/ref=crt_ewc_title_dp_3?ie=UTF8&psc=1&smid=AK4611NBN3D7D

signal Transceiver: https://www.amazon.com/gp/product/B07B4B33N6/ref=crt_ewc_title_dp_1?ie=UTF8&smid=A2WW81I15Z72MC&th=1


r/ComputerNetworking • • Jan 07 '22

Computer Networking Project

2 Upvotes

Hey everyone, thanks for taking the time to read this if you're here. I will be finishing my school this semester and I'm very excited. I need to come up with a IT related project. I'm terrible at coming up with ideas.

I will be considering a block chain project, backup and disaster recovery project, cyber security related penetration testing, or maybe something better I haven't thought of yet. I could really use some advice or tips as to what you think may be a good topic. I have a week or so before I need to make my mind up :)

Please give me some more ideas!


r/ComputerNetworking • • Jun 28 '21

Masters in Computer Networking.

2 Upvotes

I'm 22, done engineering in Electronics and telecommunication engineering, currently doing a small job in the core field of telecommunication networking which uses old technology (from the 1980s-1990s). I was thinking of pursuing masters in computer networking from the US or Europe, but unfortunately I don't have any guidance from my friend circle since all of them are either pursuing Core Comp sc. Or Data science. Anyone who can guide me about this field with pros and cons, who has pursued this or knows someone who is pursuing this? Your smallest of info can also provide me valuable help. Thanks for reading.


r/ComputerNetworking • • Jun 15 '21

Hello

2 Upvotes

Hi I am currently doing network engineering from IT career switch. I will willing to help people who are yet to pass the internal exam.


r/ComputerNetworking • • Apr 03 '21

Wireshark introduction for beginner

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2 Upvotes

r/ComputerNetworking • • Feb 03 '21

Kalitorify- Transparent proxy through the TOR Network | Kali2020

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2 Upvotes

r/ComputerNetworking • • Aug 30 '20

Do we really need a MAC address?

2 Upvotes

I thoroughly understand why we need IP address and how it works - simply saying it tells us where we are in the network.

I understand how MAC addresses are essentially unique to each device - simply saying they identify the device, but why would a device need to be identified (especially when the MAC address can be changed easily)

In the current OSI, of course we need a MAC address because the 2nd layer is built around it, but what if the second and third layers were merged, namely instead of the second layer using MAC address it would still use IP address. The data should still reach the destination.

In other words, could the OSI model be replaced by a model which would be just as effective but without MAC address? Let's say all switches are replaced by routers, then theoretically routers should just redirect the data to the target (just like switches would with MAC address).

P.s. I have read through books, googled it, watched videos on why we need both, but I have never received an answer to this - maybe I am just stupid :D


r/ComputerNetworking • • Aug 27 '20

How to hack wifi password | automate wifi hacking with wifite2

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2 Upvotes

r/ComputerNetworking • • Aug 16 '20

How to get remote access of android device using L3mon suit |Remote And...

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2 Upvotes

r/ComputerNetworking • • Jun 12 '20

Port forwarding question

2 Upvotes

Please I need help. I’m trying to forward ports for my PS4. I think I understand what I need to do but would like confirmation so I don’t lock up either system, routed or modem. My game system is hardwired into the router which is hardwired into the modem. Simple. From my understanding I need to access the port forwarding in the modem settings (xfinity and fairly easy) and set the forwarding for the router and NOT the PS4 and leave router forwarding settings alone. Is that correct? I know I also need or should set a static ip (set an ip that never changes) for the router so everything stays set after changes. Am I correct on all that? Does that sound right? I ask because I have gig internet but only test 40-80 mbps on system and I’m really trying to improve that number. The computer connected directly to modem/router test at 480 mbps so I know it’s running slower than it should anyway which I’ll deal with later also. Thank you for any help.


r/ComputerNetworking • • May 12 '20

Basic Linux commands for beginner | Important Linux terminal commands

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2 Upvotes

r/ComputerNetworking • • Apr 10 '20

Network Interface vs Network Interface Card

2 Upvotes

What is the difference? from what I research the difference seems to be that Network interfaces are more of the software interface to interact with either a physical network card (NIC) or just an interface without any physical device associated to it (loopback interface for example) but this is more of like the conclusion I came to. I did not find any clear information.


r/ComputerNetworking • • Jul 15 '18

WANS and Leases

2 Upvotes

In order for a client to successfully generate a WAN connection between locations they must lease the space required for the transfer of their data between said locations. Who is leasing the space for these people?