ResolvConf

java.lang.Object
- io.netty.resolver.dns.ResolvConf

```
final class ResolvConf
extends java.lang.Object
```
Looks up the nameservers from the /etc/resolv.conf file, intended for Linux and macOS.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

private static class ResolvConf.ResolvConfLazy

Field Summary

Fields
Modifier and Type Field Description

private java.util.List<java.net.InetSocketAddress> nameservers

Constructor Summary

Constructors
Modifier Constructor Description

private ResolvConf(java.io.BufferedReader reader)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) static ResolvConf`	`fromFile(java.lang.String file)`	Reads the given file and extracts the `nameserver`s using the syntax of the `/etc/resolv.conf` file, see `man resolv.conf`.
`(package private) static ResolvConf`	`fromReader(java.io.BufferedReader reader)`	Reads from the given reader and extracts the `nameserver`s using the syntax of the `/etc/resolv.conf` file, see `man resolv.conf`.
`(package private) java.util.List<java.net.InetSocketAddress>`	`getNameservers()`
`(package private) static ResolvConf`	`system()`	Returns the `nameserver`s from the `/etc/resolv.conf` file.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - nameservers
```
private final java.util.List<java.net.InetSocketAddress> nameservers
```
- Constructor Detail
  - ResolvConf
```
private ResolvConf(java.io.BufferedReader reader)
            throws java.io.IOException
```
    Throws:
    
    java.io.IOException
- Method Detail
  - fromReader
```
static ResolvConf fromReader(java.io.BufferedReader reader)
                      throws java.io.IOException
```
    Reads from the given reader and extracts the nameservers using the syntax of the /etc/resolv.conf file, see man resolv.conf.
    
    Parameters:
    
    reader - contents of resolv.conf are read from this BufferedReader, up to the caller to close it
    
    Throws:
    
    java.io.IOException
  - fromFile
```
static ResolvConf fromFile(java.lang.String file)
                    throws java.io.IOException
```
    Reads the given file and extracts the nameservers using the syntax of the /etc/resolv.conf file, see man resolv.conf.
    
    Throws:
    
    java.io.IOException
  - system
```
static ResolvConf system()
```
    Returns the nameservers from the /etc/resolv.conf file. The file is only read once during the lifetime of this class.
  - getNameservers
```
java.util.List<java.net.InetSocketAddress> getNameservers()
```