域名批量转IP是指通过程序化的方式,将一个或多个域名解析为对应的IP地址。这个过程通常涉及到DNS(Domain Name System)查询,即向DNS服务器发送请求,获取域名的IP地址。
nslookup
、dig
等命令行工具,以及一些第三方库如Python的dnspython
。原因:DNS服务器响应缓慢或网络连接不稳定。
解决方法:
import dns.resolver
def resolve_domain(domain):
try:
answers = dns.resolver.resolve(domain, 'A', timeout=5)
return [rdata.address for rdata in answers]
except dns.resolver.Timeout:
print(f"Timeout for {domain}")
return None
domains = ['example1.com', 'example2.com']
for domain in domains:
ips = resolve_domain(domain)
if ips:
print(f"{domain}: {ips}")
原因:域名不存在、DNS服务器配置错误或网络问题。
解决方法:
import dns.resolver
def resolve_domain(domain):
try:
answers = dns.resolver.resolve(domain, 'A')
return [rdata.address for rdata in answers]
except dns.resolver.NXDOMAIN:
print(f"Domain {domain} does not exist")
return None
except dns.resolver.NoAnswer:
print(f"No answer for {domain}")
return None
except dns.resolver.NoNameservers:
print(f"No nameservers for {domain}")
return None
domains = ['example1.com', 'nonexistentdomain.com']
for domain in domains:
ips = resolve_domain(domain)
if ips:
print(f"{domain}: {ips}")
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