'/%3e%3cpath%20d='M4%206L17%206L23%2016L17%2022L4%206Z'%20fill='url(%23g)'/%3e%3cpath%20d='M4%206L17%206L20.2%2011.3L15.6%209.9L4%206Z'%20fill='%23fff'%20opacity='0.28'/%3e%3cpath%20d='M44%206H31L19%2024V44H28V26L44%206Z'%20fill='url(%23b)'/%3e%3cpath%20d='M44%206H31L19%2024V44H28V26L44%206Z'%20fill='url(%23g)'/%3e%3cpath%20d='M44%206H31L20.4%2021.8L23.2%2022.9L34.2%208.6H41.6L44%206Z'%20fill='%23fff'%20opacity='0.26'/%3e%3c/svg%3e)
- `ip addr`, `ip route`, `ip link set eth0 up`: Modern routing and interface management. - `ss -tulpn`: Socket statistics (inspecting listening TCP/UDP ports and PIDs). - `ethtool eth0`: Link speed, duplex status, and NIC ring buffer offloading. - `nftables` (`nft`): Modern Linux kernel packet filtering and NAT table engine.
← Network Scripting theorytheory 0/3 · 0%
level 1
Curious · 0 XP
streak
0d
perfect
0
badges
0
100 XP to Apprentice
Linux Networking · easy
1. Linux Network CLI: ip, ss, ethtool & nftables
Modern replacements for ifconfig, netstat, and iptables.
1 min read2 questionsup to 50 XPtopic 1/3
Read in another language
AI translates the explanation and quiz text while preserving code and answer scoring.
How to study this topic
- 1. Read the explanation once end to end, skipping the code.
- 2. Re-read the code snippets and say out loud what each line does.
- 3. Answer the quiz without scrolling back — that is the real check.
- 4. Read every explanation, even for the answers you got right.
Scoring
- · Up to 30 XP from quiz accuracy.
- · +15 XP for a perfect first attempt.
- · +5 XP while a 3-day streak is running.
- · 75% or higher marks the topic complete.
Check your understanding
1. Which modern command replaces netstat for querying listening sockets and open ports in Linux?
2. Which command inspects physical Ethernet link speed and hardware offloading on a NIC?
Badges
First light
Pass your first topic
Sharp shooter
3 perfect first-try quizzes
On a roll
Study 3 days in a row
Week warrior
Study 7 days in a row
Grinder
Earn 500 XP
Deep diver
Earn 1500 XP