使用Python方法

比用各種命令方便，可以設定超時時間，到底通不通，埠是否開放一眼能看出來。

命令和返回

完整許可權，可以ping通，埠開放，結果如下：

無root許可權（省略了ping），埠開放，結果如下：

完整許可權，可以ping通，遠端埠關閉，結果如下：

完整許可權，可以ping通，本地埠關閉，結果如下：

完整許可權，不能ping通（埠自然也無法訪問），結果如下：

pnp.py程式碼

#!/usr/bin/python
#name pnp.py
#ping and port
#coding:utf-8

import os,sys,socket,struct,select,time
ICMP_ECHO_REQUEST = 8 # Seems to be the same on Solaris.
socket.setdefaulttimeout(4)

#first argument
host=sys.argv[1]

#second argument
port=int(sys.argv[2])

#socket try connect

def PortOpen(ip,port):
 print( '\033[1m*Port\033[0m %s:%d' %(ip,port)),s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)

 try:
  s.connect((ip,port))
  s.shutdown(2)
  print( '\033[1;32m.... is OK.\033[0m' ) 
  return True

 except socket.timeout:
  print( '\033[1;33m.... is down or network time out!!!\033[0m' ) 
  return False
  			
 except:

  print( '\033[1;31m.... is down!!!\033[0m' ) 
  return False

def checksum(source_string):
 """
 I'm not too confident that this is right but testing seems
 to suggest that it gives the same answers as in_cksum in ping.c
 """
 sum = 0
 countTo = (len(source_string)/2)*2
 count = 0
 while count<countTo:
 thisVal = ord(source_string[count + 1])*256 + ord(source_string[count])
 sum = sum + thisVal
 sum = sum & 0xffffffff # Necessary?
 count = count + 2
 if countTo<len(source_string):
 sum = sum + ord(source_string[len(source_string) - 1])
 sum = sum & 0xffffffff # Necessary?
 sum = (sum >> 16) + (sum & 0xffff)
 sum = sum + (sum >> 16)
 answer = ~sum
 answer = answer & 0xffff
 # Swap bytes. Bugger me if I know why.
 answer = answer >> 8 | (answer << 8 & 0xff00)
 return answer
def receive_one_ping(my_socket,ID,timeout):
 """
 receive the ping from the socket.
 """
 timeLeft = timeout
 while True:
 startedSelect = time.time()
 whatReady = select.select([my_socket],[],timeLeft)
 howLongInSelect = (time.time() - startedSelect)
 if whatReady[0] == []: # Timeout
  return
 timeReceived = time.time()
 recPacket,addr = my_socket.recvfrom(1024)
 icmpHeader = recPacket[20:28]
 type,code,checksum,packetID,sequence = struct.unpack(
  "bbHHh",icmpHeader
 )
 if packetID == ID:
  bytesInDouble = struct.calcsize("d")
  timeSent = struct.unpack("d",recPacket[28:28 + bytesInDouble])[0]
  return timeReceived - timeSent
 timeLeft = timeLeft - howLongInSelect
 if timeLeft <= 0:
  return
def send_one_ping(my_socket,dest_addr,ID):
 """
 Send one ping to the given >dest_addr<.
 """
 dest_addr = socket.gethostbyname(dest_addr)
 # Header is type (8),code (8),checksum (16),id (16),sequence (16)
 my_checksum = 0
 # Make a dummy heder with a 0 checksum.
 header = struct.pack("bbHHh",ICMP_ECHO_REQUEST,my_checksum,1) 
 #a1 = struct.unpack("bbHHh",header) #my test
 bytesInDouble = struct.calcsize("d")
 data = (192 - bytesInDouble) * "Q"
 data = struct.pack("d",time.time()) + data
 # Calculate the checksum on the data and the dummy header.
 my_checksum = checksum(header + data)
 # Now that we have the right checksum,we put that in. It's just easier
 # to make up a new header than to stuff it into the dummy.
 header = struct.pack("bbHHh",socket.htons(my_checksum),1)
 packet = header + data
 my_socket.sendto(packet,(dest_addr,1)) # Don't know about the 1
def do_one(dest_addr,timeout):
 """
 Returns either the delay (in seconds) or none on timeout.
 """
 delay=None
 icmp = socket.getprotobyname("icmp")
 try:
 my_socket = socket.socket(socket.AF_INET,socket.SOCK_RAW,icmp)
 my_ID = os.getpid() & 0xFFFF
 send_one_ping(my_socket,my_ID)
 delay = receive_one_ping(my_socket,my_ID,timeout)
 my_socket.close()
 except socket.error,(errno,msg):
 if errno == 1:
  # Operation not permitted
  msg = msg + (
  " - not root."
  )
  raise socket.error(msg)
 #raise # raise the original error
 return delay
def verbose_ping(dest_addr,timeout = 2,count = 100):
 """
 Send >count< ping to >dest_addr< with the given >timeout< and display
 the result.
 """
 for i in xrange(count):
 print "\033[1m*Ping\033[0m %s ..." % dest_addr,try:
  delay = do_one(dest_addr,timeout)
 except socket.error,e:
  print "\033[1;31m... failed. (%s)" % e
  break
 if delay == None:
  print "\033[1;31m... failed. (timeout within %ssec.)\033[0m" % timeout
 else:
  delay = delay * 1000
  print "\033[1;32m... get ping in %0.4fms\033[0m" % delay

if __name__ == '__main__':
 if os.geteuid() == 0:
 verbose_ping(host,2,3)
 else:
 	print "\033[1m*Ping\033[0m test must be sudo or root..."
 PortOpen(host,port)
 print( 'Job finished.')

使用命令方法

使用命令ping就不說了，埠可以用下面的命令。

當時目前telnet基本不用，可能沒有telnet客戶端了。

測試通常連線不上會等很久，埠連上了也需要通過反饋內容自行判斷。

telnet

telnet ip port

$telnet 192.168.234.1
Trying 192.168.234.1...
Connected to 192.168.234.1.
Escape character is '^]'.
......

wget

wget ip:port

$wget 192.168.234.1:21
--2019-03-22 15:42:27-- http://192.168.234.1:21/
正在連線 192.168.234.1:21... 已連線。
已發出 HTTP 請求，正在等待迴應... 200 沒有 HTTP 頭，嘗試 HTTP/0.9
長度：未指定
正在儲存至: “index.html”
......

SSH

ssh -v ip -p port

$ssh -v 192.168.234.1 -p 21
OpenSSH_7.4p1,OpenSSL 1.0.2k-fips 26 Jan 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 58: Applying options for *
debug1: Connecting to 192.168.234.1 [192.168.234.1] port 21.
debug1: Connection established.
......

curl

culr ip:port

$curl 192.168.234.1:21
220 Serv-U FTP Server v15.1 ready...
530 Not logged in.
......

以上這篇使用Python測試Ping主機IP和某埠是否開放的例項就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支援我們。