本文实例讲述了Python实现根据指定端口探测服务器/模块部署的方法，非常具有实用价值。分享给大家供大家参考借鉴。
有些时候，在维护过程中，服务器数量非常多。应用模块部署在不同服务器上。有时维护人员做了模块迁移，而未及时同步至手册中。查找比较困难。于是，产生Python根据应用端口进行探测，获取模块部署。
设想非常简单：通过简单的tcp链接，如果能够成功的建立，立即断开，防止影响业务。表示模块在某服务器上有部署。
具体功能代码如下：
#!/bin/env python
#
import socket
import time
from threading import Thread
hostList=["10.10.126.170","10.10.126.173","10.10.126.177","10.10.126.170","10.10.126.173","10.10.126.177"]
onLine=[]
offLine=[]
gathered=[]
hostDict={"onLine":[],"offLine":[]}
class detect(Thread):
def __init__(self,ip, port=22):
Thread.__init__(self)
self.ip=ip
self.port=port
def run(self):
address=(self.ip,self.port)
sock=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
sock.connect(address)
buff=sock.recv(1024)
if(len(buff)):
print("detect Host %s Online" % self.ip)
onLine.append(self.ip)
except:
print("detect Host %s OffLine" % self.ip)
offLine.append(self.ip)
sock.close
def sigle_detect(ip):
p=detect(ip)
p.start()
p.join(60)
def multi_detect(host):
T_thread=[]
for ip in set(host):
t=detect(ip)
t.name=ip
t.start()
T_thread.append(t)
for t in T_thread:
t.join(15)
def filter_gather(hlist):
gather=[]
for t in set(hlist):
gather.append(t)
return gather
def mak_hostList_byip3(iplist):
global hostList
hostList=[]
for ip in set(iplist):
tmp=ip.split('.')
if(len(tmp)==3):
for i in range(2,254):
hostList.append('%s.%d' % (ip, i))
elif(len(tmp)==4):
hostList.append(ip)
else:
continue
return hostList
def update_hostDict(onLine, offLine):
hostDict["onLine"]=onLine
hostDict["offLine"]=offLine
def make_pickle_fileName():
import time
fileName=""
for s in time.localtime()[:5]:
fileName=fileName+str(s)
fileName="Host_%s.pkl" % fileName
return fileName
def save_gathered(fileName, hostDict):
import pickle
F=open(fileName,'wb')
pickle.dump(hostDict,F)
F.close()
def recovery_gathered(fileName, keyList):
import pickle
try:
F=open(fileName,'rb')
E=pickle.load(F)
keyList.append(E)
except:
F.close()
return
while E:
try:
E=pickle.load(F)
keyList.append(E)
except:
F.close()
break
if __name__=='__main__':
sigle_detect(hostList[0])
#---------------
mak_hostList_byip3(hostList)
multi_detect(hostList)
onLine=filter_gather(onLine)
print(onLine)
offLine=filter_gather(offLine)
print(offLine)
gathered=onLine+offLine
print(gathered)
update_hostDict(onLine, offLine)
print(hostDict)
fN=make_pickle_fileName()
save_gathered(fN,hostDict)
keyList=[]
recovery_gathered(fN,keyList)
print(keyList)
希望本文讲述的方法对大家的Python程序设计有所帮助。
