Well-known TCP/UDP ports are the standard port numbers from 0 to 1023, assigned by IANA so common network services can be found consistently across systems.

Here at a list of well-known TCP/UDP port numbers and their applications πŸ˜ŽπŸ‘‡

Find high-res pdf ebooks with all my networking related infographics at https://study-notes.org

#networking #networkengineer #devops #technology #ccna

Pass your Cisco CCNA with David

#CCNA #Devnet #Cisco #CCNP

Pass your Cisco CCNA with David

#CCNA #Devnet #Cisco #CCNP

Pass your Cisco CCNA with David

#CCNA #Devnet #Cisco #CCNP

Currently in the middle of my #CCNA revisions. Finally got my hands on a #Cisco 2960 to have some fun with real equipment and move away from Packet Tracer.

I just rebuilt my homelab architecture. It's a classic but effective setup: #OPNsense firewall, managed switch, and multiple VLANs

I documented the whole topology, IPAM, and some troubleshooting steps on my personal wiki.

https://wiki.unclereaton.dev/doku.php?id=network:homelab_architecture (watch out - it's in French :D)

#Homelab #Networking #NetworkEngineering

I am not a network engineer. I have done a lot of network engineering things in my time.

It sure seems like a majority of the difficulty with things like the #CCNA (and other industry certs) is mostly just memorizing the non-standard marketing term for a very standard feature.

What the hell is EtherChannel? Is it different than link aggregation? No not really. So just call it friggin lagg or lacp like everyone else?

#NerdRage #Standards #Cisco #Networking

Pass your Cisco CCNA with David

#CCNA #Devnet #Cisco #CCNP

Switchlab.dev – Learn switching and routing through interactive labs

Switchlab.dev은 Cisco IOS, Juniper JunOS λ“± μ‹€μ œ λ„€νŠΈμ›Œν¬ μž₯λΉ„ CLI ν™˜κ²½μ„ λΈŒλΌμš°μ €μ—μ„œ μ‹€μ‹œκ°„μœΌλ‘œ μ²΄ν—˜ν•˜λ©° μŠ€μœ„μΉ­κ³Ό λΌμš°νŒ…μ„ ν•™μŠ΅ν•  수 μžˆλŠ” μΈν„°λž™ν‹°λΈŒ 랩 ν”Œλž«νΌμž…λ‹ˆλ‹€. VLAN, 트렁크, κ²Œμ΄νŠΈμ›¨μ΄ ꡬ성뢀터 문제 ν•΄κ²°κΉŒμ§€ μ‹€μ œ λͺ…령어와 μœ μ‚¬ν•œ 좜λ ₯κ³Ό ν† ν΄λ‘œμ§€ μ‹œκ°ν™”λ₯Ό μ œκ³΅ν•˜λ©°, AI 기반의 도움말 Tinkyκ°€ ν•™μŠ΅μ„ μ§€μ›ν•©λ‹ˆλ‹€. CCNA, JNCIA λ“± λ„€νŠΈμ›Œν¬ 자격증 쀀비에 μ΅œμ ν™”λœ 단계별 μ»€λ¦¬ν˜λŸΌλ„ ν¬ν•¨λ˜μ–΄ μžˆμ–΄ 싀무 λŠ₯λ ₯ ν–₯상에 μ¦‰μ‹œ ν™œμš© κ°€λŠ₯ν•©λ‹ˆλ‹€.

https://switchlab.dev/

#networking #interactivelearning #cli #ccna #juniper

SwitchLab: Learn Networking in Your Browser

Pass your Cisco CCNA with David

#CCNA #Devnet #Cisco #CCNP

Pass your Cisco CCNA with David

#CCNA #Devnet #Cisco #CCNP