How to implement the addition, deletion, search and modification operations of Linux iptables linked list in Golang?

Golang efficiently manages Linux iptables rules

Linux system administrators often use iptables to manage network traffic and security policies. This article will guide you on how to efficiently manipulate iptables rules in Golang, including adding, deleting, querying, and modifying.

Similar to Python's python-iptables library, Golang also provides corresponding libraries to simplify iptables operations. The following are two commonly used libraries:

Recommended libraries: go-iptables and iptables-go

1. go-iptables library: This library provides a clean set of APIs for performing common operations of iptables, such as adding, deleting, and querying rules.

   For example, use the go-iptables library to add an iptables rule:

    package main
   
   import (
       "fmt"
       "github.com/coreos/go-iptables/iptables"
   )
   
   func main() {
       ipt, err := iptables.New()
       if err != nil {
           panic(err)
       }
       err = ipt.Append("filter", "INPUT", []string{"-p", "tcp", "--dport", "80", "-j", "ACCEPT"})
       if err != nil {
           panic(err)
       }
       fmt.Println("Rules added successfully")
   }

2. iptables-go library: The iptables-go library provides more advanced features that allow more flexibility in manipulating iptables tables, chains and rules.

   For example, use the iptables-go library to add an iptables rule:

    package main
   
   import (
       "fmt"
       "github.com/corestone/iptables-go"
   )
   
   func main() {
       ipt := iptables.New()
       err := ipt.Append("filter", "INPUT", []string{"-p", "tcp", "-m", "tcp", "--dport", "80", "-j", "ACCEPT"})
       if err != nil {
           panic(err)
       }
       fmt.Println("Rules added successfully")
   }

Both libraries provide rich functionality, and you can choose the right one based on your project needs. Through these libraries, you can easily implement the addition, deletion, and correction of Linux iptables linked lists in Golang, thereby better managing your network security policies.

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