求：机房、线上有多台主机，为了保障安全，需要定期修改密码。若手动修改，费时费力易出错。

程序应该满足如下需求 ：

1、在现有的excel密码表格，在最后一个字段后面生成新的密码，另存为一个新的excel密码文件

2、根据新的excel密码文件，更新服务器密码，将更新后的结果保存到另外一个excel文件。

a、原始excel文件字段格式，最后一个字段为原始密码

IP USER PORT pwd

b、生成新的密码文件字段格式，最后一个字段为更新密码

IP USER PORT pwd pwd20180929

c、生成新的密码文件字段格式，最后一个字段为更新是否成功的标识

IP PORT USERNAME OLDPASS NEWPASS FLAG

按照面向对象编程的思想，可以设计2个类，excelhandler和ChangePassword

excelhandler主要负责excel文件的读取，写入，增加一个生成密码文件

ChangePassword主要利用paramiko登陆服务器进行密码更新

excelhandler类

#_*_ coding: utf-8 _*_'''@author liaogs'''import jsonimport xlrdimport xlwtimport timeimport datetimeimport base64import randomfrom xlutils.copy import copyclass excelhandler(): def __init__(self,path): self.path = path self.workbook = None self.rows = 0 self.cols = 0 self.serverlist = [] def read_excel(self): self.workbook = xlrd.open_workbook(self.path) sh1 = self.workbook.sheet_by_index(0) self.rows = sh1.nrows self.cols = sh1.ncols for row in range(1,sh1.nrows): server = [] for col in [0,1,2,sh1.ncols-2,sh1.ncols-1]: server.append(sh1.cell(row,col).value) self.serverlist.append(server) def gen_new_password_excel(self): old_excel = xlrd.open_workbook(self.path) new_excel = copy(old_excel) ws = new_excel.get_sheet(0) coldt = "pass"+ str(datetime.date.today()) ws.write(0,self.cols,coldt) for row in range(1,self.rows): ws.write(row,self.cols,self.gen_key()) dt = time.strftime("%Y%m%d%H%M%S",time.localtime()) new_excel.save(dt+self.path) def write_excel(self,serverlist): wb = xlwt.Workbook() ws = wb.add_sheet(u'sheet1',cell_overwrite_ok=True) header = ["IP","PORT","USERNAME","OLDPASS","NEWPASS","FLAG"] for col in range(0,6): ws.write(0,col,header[col]) for row in range(len(serverlist)): for col in range(0,6): ws.write(row+1,col,serverlist[row][col]) dt = time.strftime("%Y%m%d%H%M%S", time.localtime()) wb.save(dt+".xlsx") def get_server_list(self): return self.serverlist def get_rows(self): return self.rows def get_cols(self): return self.cols def gen_key(self): pool = "1234567890abcdefghijklmnopqrstuvwxyzQWERTYUIOPASDFGHJKLZXCVBNM" length = len(pool) key = "" for i in range(28): c = random.randint(0,length) key += pool[c:c+1] return key

ChangePassword类

#_*_ coding: utf-8 _*_'''@author liaogs'''import paramikoimport sysclass ChangePassword(): def __init__(self,hostip,port,username,oldpass,newpass): self.hostip = hostip self.port = port self.username = username self.oldpass = oldpass self.newpass = newpass self.updateflag = False def run_change(self): s = paramiko.SSHClient() s.set_missing_host_key_policy(paramiko.AutoAddPolicy()) tasklist = [] try: s.connect(hostname=self.hostip, port=self.port, username=self.username, password=self.oldpass) print ('"%s" is updating password' % self.hostip) stdin, stdout, stderr = s.exec_command('echo %s |passwd --stdin root' % self.newpass) r_message = stdout.read() if "successfully" in r_message: self.updateflag = True print('%s is successful' %self.hostip) else: print('%s is failed' %self.hostip) self.updateflag = False s.close() except Exception: self.updateflag = False print("connection error") tasklist = [self.hostip, self.port, self.username, self.oldpass, self.newpass, self.updateflag] return tasklist

main

#_*_ coding: utf-8 _*_'''@author liaogs'''import reimport sysfrom excelhandler import excelhandlerfrom changepassword import ChangePasswordif __name__ == '__main__': if len(sys.argv) == 1: eh = excelhandler("pass.xlsx") else: eh = excelhandler(sys.argv[1]) eh.read_excel() def updatepassword(): ret = eh.get_server_list() tasklist = [] for i in range(len(ret)): print(ret[i][0],ret[i][2],ret[i][1],ret[i][3],ret[i][4]) cp = ChangePassword(hostip=ret[i][0],port=int(ret[i][2]),username=ret[i][1],oldpass=ret[i][3],newpass=ret[i][4]) task = cp.run_change() tasklist.append(task) print(tasklist) eh.write_excel(tasklist) while True: inp = input("1、生成密码 2、更新密码>>") if str(inp) == "1": eh.gen_new_password_excel() elif str(inp) == "2": updatepassword() elif inp == "exit": exit() else: continue

代码下载：https://github.com/liaogs/changepassword.git

总结

以上所述是小编给大家介绍的python实现批量修改服务器密码的方法,希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！
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