try{ IPHostEntry hostInfo = Dns.GetHostByName(hostName);// Get the IP address list that resolves to the host names contained in the// Alias property.IPAddress[] address = hostInfo.AddressList;// Get the alias names of the addresses in the IP address list.String[]alias= hostInfo.Aliases; ...
try{ IPHostEntry hostInfo = Dns.GetHostByName(hostName);// Get the IP address list that resolves to the host names contained in the// Alias property.IPAddress[] address = hostInfo.AddressList;// Get the alias names of the addresses in the IP address list.String[]alias= hostInfo.Aliases; ...
DIY一个DNS查询器:了解DNS协议 每当我们在浏览器上敲入任何一个域名访问某个网站的时候,我们都要使用Dns协议进行一次”域名:IP”的查询;作为命令行使用者,与dns有关用的最多的就是Nslookup 命令吧;作为程序员,以c#程序员为例,要得到一个域名的ip大概也是这么一行“System.Net.Dns.GetHostByName(string UriHostNam...
import socket def test_dns_resolution(domain): try: ip_address = socket.gethostbyname(domain) print(f"The IP address of {domain} is {ip_address}") except socket.gaierror as e: print(f"DNS resolution failed for {domain}: {e}") # 测试example.com的DNS解析 test_dns_resolution("example....
import socket def resolve_dns(domain): try: ip = socket.gethostbyname(domain) print(f"The IP address of {domain} is {ip}") except socket.gaierror as e: print(f"Failed to resolve {domain}: {e}") # 测试DNS解析 resolve_dns("www.example.com") ...
DNS协议报⽂格式 请求部分:分为5个部分，分别为Header、Question、Answer、Authority、Additional。其中头部的⼤⼩是固定的为12字节。这5个部分不是全部都是必须的，在向服务器发送查询请求的时候，只需要前2个。回复的时候也不⼀定包含5个（按查询的内容和返回的信息⽽定）。Header 部分：header头部分是必须...
int my_gethostbyname(char *domain, char *nameserver){int ret;char sendbuff[1500] = {0};int sendlength = 0;char recvbuff[1500] = {0};char addrbuff[1500] = {0};int addrlen = sizeof(struct sockaddr_in);unsigned int addr = 0;int sockfd; struct sockaddr_in server;//.服务端memset(...
gethostbyname*（），gethostbyaddr*（），[...]函数已过时。应用程序应该使用getaddrinfo（3），...
try{ IPHostEntry hostInfo = Dns.GetHostByName(hostName);// Get the IP address list that resolves to the host names contained in the// Alias property.IPAddress[] address = hostInfo.AddressList;// Get the alias names of the addresses in the IP address list.String[]alias= hostInfo.Aliases; ...
GetHostByName has been deprecated. Use GetHostEntry instead. Gets the DNS information for the specified DNS host name. C# 复制 [System.Obsolete("GetHostByName has been deprecated. Use GetHostEntry instead.")] public static System.Net.IPHostEntry GetHostByName (string hostName); Parameters hostName St...