dnsmasq怎么ack包怎么新增option
时间: 2024-10-18 09:18:49 浏览: 3
Dnsmasq是一款小型的DNS缓存服务器,常用于小型网络环境作为本地域名解析服务。它提供动态更新功能,允许客户端(如DHCP服务器)通过UDP协议向dnsmasq发送DNS记录的添加或删除请求,即所谓的"DNS动态更新"。
如果你想让dnsmasq回应ACK(确认)消息,你需要配置`server=your-dns-server-address`选项,指定一个DNS服务器地址,这样当接收到更新请求时,dnsmasq会把这个请求转发给这个服务器,同时在响应中包含ACK信息确认已接收请求。
对于新增option,例如添加一个AAAA记录的TTL(生存时间),你可以使用`addn-hosts`配置项。这个配置项可以接受一个文件路径,文件内容格式通常是每行一条记录,例如:
```
example.com A 192.0.2.1
example.com AAAA 2001:db8::1 ttl=600
```
这里的`ttl=600`就是新增的一个option,指定了该记录的有效期为600秒。每次dnsmasq读取到这个文件并处理新内容时,就会增加相应的DNS条目。
相关问题
dnsmasq option6
Dnsmasq is a lightweight DNS and DHCP server software that can be used to provide DNS and DHCP services to a small network. The "option6" in Dnsmasq refers to DHCPv6 options, which are used to provide additional configuration information to DHCPv6 clients.
DHCPv6 options are similar to DHCP options in IPv4, but they are used to provide IPv6-specific configuration information. Some common DHCPv6 options include:
- DNS Server: Specifies the IP address of the DNS server that the client should use.
- Domain Name: Specifies the DNS domain name that the client should use.
- NTP Server: Specifies the IP address of the NTP server that the client should use.
- SIP Server: Specifies the IP address of the SIP server that the client should use.
To configure DHCPv6 options in Dnsmasq, you can use the "dhcp-option" directive in the dnsmasq.conf file. For example, to specify the DNS server address, you can add the following line to your dnsmasq.conf file:
dhcp-option=option6:dns-server,2001:db8::1
This will instruct Dnsmasq to provide the DNS server address "2001:db8::1" to DHCPv6 clients. You can also specify multiple DHCPv6 options by adding multiple "dhcp-option" directives to your dnsmasq.conf file.
dnsmasq option6 mac
`option6` 是一个 DHCPv6 协议中的选项,它允许 DHCPv6 服务器向客户端提供一些配置参数。其中,`mac` 参数是指客户端的 MAC 地址。
在 dnsmasq 中,可以通过在配置文件中添加类似以下的行来为 DHCPv6 客户端提供 `mac` 选项:
```
dhcp-option=option6:mac, 00:11:22:33:44:55;
```
这个例子中,`00:11:22:33:44:55` 是一个虚构的 MAC 地址,你需要将它替换成你实际的客户端 MAC 地址。然后,当客户端向 dnsmasq 发起 DHCPv6 请求时,dnsmasq 会在响应中包含一个 `mac` 选项,其值为客户端的 MAC 地址。
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