Darryl | NetEng

I’m documenting my journey as an IT student learning networking in real life. If you want to understand networking without confusion, follow me. Let’s grow together.

An ATM card uses cryptographic keys stored inside the EMV chip. So when you insert the card, the ATM and the bank performs an encrypted verification before allowing access to your account. So it’s not magic. #kalyjay #rebirthcreativestudios

@dev_concept @NITAGhana Personally I think you don’t grow a digital economy by licensing “the keyboard”. You rather grow it by scaling access to opportunities. I think these regulations should rather raise standards, not restrict entry into the field itself.

DID YOU KNOW IF THE @NITAGhana BILL 2025 IS PASSED INTO LAW, YOU CANNOT BUILD A SIMPLE TO-DO APP and EXPERIMENT UNLESS THE GOVERNMENT authorizes YOU? think about it🤣

@kwekutech @NITAGhana Personally I think you don’t grow a digital economy by licensing “the keyboard”. You rather grow it by scaling access to opportunities. I think these regulations should rather raise standards, not restrict entry into the field itself.

@NITAGhana genuine question. how does the bill apply to ai agents? does sam altman need to sit for a certification exam before ai agents can provide “ICT Services” to ghanaian organizations and individuals?

Sometimes, our Wi-Fi and internet sources might be working properly but the problem might be interference by our home appliances that disrupt the efficiency of the Wi-Fi. #kalyjay #rebirthcreativestudios

A mobile phone is able to communicate with another device through Bluetooth using short range radio waves. And what makes that happen is that there’s an embedded Bluetooth radio chip and a small antenna in every eligible device where they send and receive radio signals.

Did you know that without cellular modem, tiny antennas and network protocols, a phone would just be a small computer with no internet access? #kalyjay #rebirthcreativestudios

If everything fails, just reset your network and you’ll be good to go . #kalyjay. #rebirthcreativestudios

Just ping 8.8.8.8 using the respective apps. If you get a feedback that “replies received “ then it’s working. If you get “request timed out” then it’s an issue from the ISP. #kalyjay #rebirthcreativestudios

If after all these processes, the internet still refuses to work, we then run a ping test where we use apps like “ping tools network utilities “ on an android and “H.E Net network tools” on an iPhone . #kalyjay #rebirthcreativestudios

How to know if it worked after changing the DNS, turn airplane mode on and off and then try opening your social media applications to see if they’re working. If they are, the issue was likely your ISP’s DNS server. #kalyjay #rebirthcreativestudios

Changing mobile data DNS on an android phone. Open settings > tap on network & internet > tap on private DNS > choose : private DNS provider host name > enter 1.1.1.1> save #kalyjay #rebirthcreativestudios

Changing Wi-Fi DNS settings on an android. Open settings> tap on Wi-Fi > long hold your Wi-Fi device> modify/edit network > advanced options> change ip settings to static> enter DNS as 1.1.1.1 and 1.0.0.1 respectively > save. #kalyjay #rebirthcreativestudios

If you are using your mobile data on an iPhone, they(iPhones) normally don’t allow direct changes so unless you change in through a VPN app or a DNS app. #kalyjay #rebirthcreativestudios

If you are using your Wi-Fi and you want to change your DNS; On an iPhone, open settings > tap on Wi-Fi > tap ℹ️> scroll down to configure your DNS> change from automatic to manual> Tap add server > enter 1.1.1.1 or 1.0.0.1 > Delete old DNS entries > Tap save. #kalyjay

So if the problem isn’t from the IP address, test if the DNS is the problem. To do this, open your web browser and try 1.1.1.1 or 8.8.8.8 in the search bar. If either of them opens but google doesn’t still open, your DNS might be failing

On android; Open settings> Wi-Fi > connected network > Advanced/details Now check your IP Address. If it’s 169.254.x.x, then the phone also has an IP problem. #kalyjay #rebirthcreativestudios

On an iPhone; settings > Wi-Fi > tap on the more info ℹ️ icon Look for : IP Address, router and subnet mask If the IP looks like: 169.254.x.x, meaning your phone failed to get an IP from the router( which might be a DHCP issue) #kalyjay #rebirthcreativestudios

Check if your phone actually has an IP address. An IP address is Whats makes a device eligible to be connected to the internet or known by the internet. #kalyjay #rebirthcreativestudios

If you have a network problem on your mobile phone but you have internet bundle and you don’t want to call your telecommunication network, here are some ways you can troubleshoot your own network for it to start working ; #kalyjay #rebirthcreativestudios

Research also says, they have those two significant colors so that they’ll be noticed by airlines mostly at night and during bad weather conditions. #kalyjay #rebirthcreativestudios