Question

利用python如何远程服务器，获取其基本信息

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Answer 1

#!/usr/bin/python
#coding:utf-8

from subprocess import Popen,PIPE
import re
import os,sys
import paramiko


class GetLinuxMessage:
#登录远程Linux系统
def session(self, host, port, username, password):

try:
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(host, int(port), username, password)
print "Login %s is successful" % host
return ssh
except Exception as e:
print e.message

#获取Linux主机名

def get_hostname(self, host, port=22, username="root", password="baicells"):
cmd_hostname = "hostname"
client = self.session(host, port, username, password)
stdin, stdout, stderr = client.exec_command(cmd_hostname)
hostname = stdout.read()
return hostname


#获取Linux网络ipv4信息

def get_ifconfig(self, host, port=22, username="root", password="baicells"):
client = self.session(host, port, username, password)
stdin, stdout, stderr = client.exec_command("ifconfig")
data = stdout.read()
#ret = re.compile('((?:1[0-9][0-9]\.)|(?:25[0-5]\.)|(?:2[0-4][0-9]\.)|(?:[1-9][0-9]\.)|(?:[0-9]\.)){3}((1[0-9][0-9])|(2[0-4][0-9])|(25[0-5])|([1-9][0-9])|([0-9]))')
ret = re.compile('(?:19[0-9]\.)((?:1[0-9][0-9]\.)|(?:25[0-5]\.)|(?:2[0-4][0-9]\.)|(?:[1-9][0-9]\.)|(?:[0-9]\.)){2}((1[0-9][0-9])|(2[0-4][0-9])|(25[0-5])|([1-9][0-9])|([0-9]))')
match = ret.search(data).group()
return match      


#获取Linux系统版本信息

def get_version(self, host, port=22, username="root", password="baicells"):

client = self.session(host, port, username, password)
stdin, stdout, stderr = client.exec_command("cat /etc/redhat-release")
data = stdout.read()
return data
#获取Linux系统CPU信息
def get_cpu(self, host, port=22, username="root", password="baicells"):

cpunum = 0
processor = 0
client = self.session(host, port, username, password)
stdin, stdout, stderr = client.exec_command("cat /proc/cpuinfo")
cpuinfo = stdout.readlines()
#with stdout.read() as cpuinfo:
for i in cpuinfo:
if i.startswith('physical id'):
cpunum = i.split(":")[1]
if i.startswith('processor'):
processor = processor + 1
if i.startswith('model name'):
cpumode = i.split(":")[1]
return int(cpunum)+1, processor,cpumode

#获取Linux系统memory信息
def get_memory(self, host, port=22, username="root", password="baicells"):

client = self.session(host, port, username, password)
stdin, stdout, stderr = client.exec_command("cat /proc/meminfo")
meminfo = stdout.readlines()
#with open('/proc/meminfo') as meminfo:
for i in meminfo:
if i.startswith('MemTotal'):
memory = int(i.split()[1].strip())
memory = '%.f' %(memory / 1024.0) + 'MB'
else:
pass
return memory


#获取Linux系统网卡信息
def get_ethernet(self, host, port=22, username="root", password="baicells"):

client = self.session(host, port, username, password)
stdin, stdout, stderr = client.exec_command("lspci")
data = stdout.read()
ret = re.compile('Eth[^\d].*')
eth = ret.search(data).group()
return eth



if __name__ == '__main__':

host = raw_input("please input the hostname: ")
result = GetLinuxMessage()
result1 = result.get_hostname(host)
print ('主机名：%s' %result1)
result2 = result.get_ifconfig(host)
print ('主机IP：%s' %result2)
result3 = result.get_version(host)
print ('版本信息：%s' %result3)
result4,result5,result6 = result.get_cpu(host)
print ('物理CPU数量：%s' %result4)
print ('逻辑CPU数量：%s' %result5)
print ('物理CPU型号：%s' %result6)
result7 = result.get_memory(host)
print ('物理内存：%s' %result7)
result8 = result.get_ethernet(host)
print ('网卡型号：%s' %result8)