Iptables vs nftables: Difference between revisions
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(Created page with "== iptables vs [https://netfilter.org/ nftables]<ref>https://tuxcare.com/blog/iptables-vs-nftables-in-linux-what-is-the-difference/</ref> == iptables is a generic firewalling software that allows you to define rulesets. Each rule within an IP table consists of a number of classifiers (iptables matches) and one connected action (iptables target). iptables has been a core component of Linux firewall solutions, offering flexibility and robust control ove...") |
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== | {{Status | ||
|status=Draft | |||
|owner=Knowledge Agent | |||
|last_update=2026-07-16 | |||
|review=Pending | |||
}} | |||
{{TOC}} | |||
== Overview == | |||
Iptables vs nftables에 대한 기술 문서입니다. | |||
=== Summary === | |||
* 무엇인가? - Iptables vs nftables | |||
* 왜 필요한가? - HPC 및 서버 환경에서 필수 개념 | |||
* 언제 사용하는가? - 서버 구성, 성능 튜닝, 문제 해결 시 | |||
== Purpose == | |||
이 문서가 존재하는 이유 | |||
* Goal: Iptables vs nftables에 대한 기술 정보 제공 | |||
* Scope: Iptables vs nftables의 개념, 사용법, 설정 | |||
* Non-goals: 다른 주제로의 확장 | |||
== Key Concepts == | |||
{| class="wikitable" | |||
! Concept | |||
! Description | |||
! Related | |||
|- | |||
| Iptables vs nftables | |||
| HPC/서버 환경에서 중요한 기술 개념 | |||
| [[Linux]], [[Server]] | |||
|} | |||
== Detailed Explanation == | |||
[[Linux iptables|iptables]] is a generic firewalling software that allows you to define rulesets. Each rule within an IP table consists of a number of classifiers (iptables matches) and one connected action (iptables target). iptables has been a core component of [[Linux]] firewall solutions, offering flexibility and robust control over [[network traffic]]. However, its complex syntax can be intimidating. | [[Linux iptables|iptables]] is a generic firewalling software that allows you to define rulesets. Each rule within an IP table consists of a number of classifiers (iptables matches) and one connected action (iptables target). iptables has been a core component of [[Linux]] firewall solutions, offering flexibility and robust control over [[network traffic]]. However, its complex syntax can be intimidating. | ||
[[nftables]] is the successor of iptables, it designed to address some of the limitations seen in iptables with Linux [[kernel]] 3.13 in 2014, it allows for much more flexible, scalable and performance packet classification. This is where all the fancy new features are developed. | |||
[[nftables]] is the successor of iptables, it designed to address some of the limitations seen in iptables with Linux kernel 3.13 in 2014, it allows for much more flexible, scalable and performance packet classification. This is where all the fancy new features are developed. | |||
{| class="wikitable" | {| class="wikitable" | ||
|+ | |+ | ||
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| | | | ||
iptables -P INPUT DROP | iptables -P INPUT DROP | ||
iptables -P FORWARD DROP | iptables -P FORWARD DROP | ||
iptables -P OUTPUT ACCEPT | iptables -P OUTPUT ACCEPT | ||
iptables -A INPUT -p tcp --dport 80 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT | iptables -A INPUT -p tcp --dport 80 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT | ||
iptables -A INPUT -p tcp --dport 443 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT | iptables -A INPUT -p tcp --dport 443 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT | ||
iptables -A INPUT -i lo -j ACCEPT | iptables -A INPUT -i lo -j ACCEPT | ||
== Best Practices == | |||
* 최신 버전 사용 권장 | |||
* 공식 문서 참고 | |||
* 테스트 환경에서 먼저 검증 | |||
== References == | == References == | ||
* [https://wiki.hpcmate.com Iptables vs nftables] | |||
== Related Pages == | |||
* [[Linux]] | |||
* [[Server]] | |||
* [[Hardware]] | |||
* [[Network]] | |||
[[Category:Linux]] | |||
== Knowledge Graph == | |||
Related | |||
→ [[Linux]] | |||
→ [[Server]] | |||
→ [[Hardware]] | |||
→ [[Network]] | |||
[[Category:Configuration]] | |||
Latest revision as of 11:29, 17 July 2026
Overview
Iptables vs nftables에 대한 기술 문서입니다.
Summary
- 무엇인가? - Iptables vs nftables
- 왜 필요한가? - HPC 및 서버 환경에서 필수 개념
- 언제 사용하는가? - 서버 구성, 성능 튜닝, 문제 해결 시
Purpose
이 문서가 존재하는 이유
- Goal: Iptables vs nftables에 대한 기술 정보 제공
- Scope: Iptables vs nftables의 개념, 사용법, 설정
- Non-goals: 다른 주제로의 확장
Key Concepts
| Concept | Description | Related |
|---|---|---|
| Iptables vs nftables | HPC/서버 환경에서 중요한 기술 개념 | Linux, Server |
Detailed Explanation
iptables is a generic firewalling software that allows you to define rulesets. Each rule within an IP table consists of a number of classifiers (iptables matches) and one connected action (iptables target). iptables has been a core component of Linux firewall solutions, offering flexibility and robust control over network traffic. However, its complex syntax can be intimidating. nftables is the successor of iptables, it designed to address some of the limitations seen in iptables with Linux kernel 3.13 in 2014, it allows for much more flexible, scalable and performance packet classification. This is where all the fancy new features are developed.
| iptables | nftables | |
|---|---|---|
| allows incoming SSH traffic on port 22 | iptables -A INPUT -p tcp --dport 22 -j ACCEPT | nft add rule ip filter input tcp dport 22 accept |
| Allow incomming traffics on port 80 and 443 |
iptables -P INPUT DROP iptables -P FORWARD DROP iptables -P OUTPUT ACCEPT iptables -A INPUT -p tcp --dport 80 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT iptables -A INPUT -p tcp --dport 443 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT iptables -A INPUT -i lo -j ACCEPT
Best Practices
References
Related PagesKnowledge GraphRelated |