Python网络编程测试－DNS

DNS就是传说中的域名解析，完成域名和IP之间的转换过程，值得注意的是：反向DNS是由IP到域名，这需要和逆向相区别。

Python(2.6以下版本，3.2还没试过，有了解的同学请指教)并没有“原生”的提供DNS相关功能的module，PyDNS（在sourcerage上可以直接搜索到，或者有使用BSD的同学可以使用SVN直接安装）就是一个提供了DNS相关功能的module。

[python] #test of getting infomation of some addr

import sys , socket , time , traceback , DNS

def getAddr(xhost):
try:
    host = str(xhost)
except ValueError:
    print(e)

try :
    res = socket.getaddrinfo(host , None)
except socket.herror , e:
    print(e)
print(res[0][4])

def getDNS(servername):
DNS.DiscoverNameServers()

req = DNS.Request()
ans = req.req(name = servername , qtype = DNS.Type.ANY)

print(ans.answers)
#test of getting infomation of some addr

import sys , socket , time , traceback , DNS

def getAddr(xhost):
try:
host = str(xhost)
except ValueError:
print(e)

try :
res = socket.getaddrinfo(host , None)
except socket.herror , e:
print(e)
print(res[0][4])

def getDNS(servername):
DNS.DiscoverNameServers()

req = DNS.Request()
ans = req.req(name = servername , qtype = DNS.Type.ANY)

print(ans.answers)

简单的测试code

摘自 FishinLab的专栏

补充：Web开发 , Python ,