近由于工作需要，经常需要修改Bind的域名解析配置文件。由于最近一直在学Python所以就用Python写了一个脚本。具体实现功能如下：
1，可以在正向解析和反向解析配置文件中，自动添加’IN A’ 和 ‘IN PTR’ 记录；
2，可以删除指定的记录，包括正向解析和反向解析；
3，可以查看正向解析记录和反向解析记录；
4，在修改配置文件后可以自动更新同步串码（Serial）；
5，每项操作均配置有菜单选项和相关提示。
全部脚本如下：
#/usr/bin/env python
#Language: Python
#Author:CMZSteven
#Last Change:2017-03-06
#Version:1.1
#Bug fix:CMZSteven
import time
import sys
#配置解析文件所在的目录
config_path = "/var/named/"
#配置正向查找配置文件
forward_resolution_conf = config_path + "named.abc.com"
#配置反向查找配置文件
reverse_parsing_conf = config_path + "named.10.0.0"
#配置IP网段
prefix_of_ip = "10.0.0."
#配置域名，最后面一定要有一个‘.’
postfix_of_host = ".abc.com."
def update_single_sn(conf_file):
date = time.strftime('%Y%m%d',time.localtime(time.time()))
file=open(conf_file,"r+")
file.next()
old_sn = file.next().split()[6]
new_sn = ""
if str(int(old_sn)/100) == date:
new_sn = str(int(old_sn) - int(date) * 100 + int(date) * 100 + 1)
else:
new_sn = str(int(date) * 100 + 1)
file.seek(0,0)
f = file.read()
f = f.replace(old_sn, new_sn)
file.seek(0,0)
file.write(f)
file.close()
print '\033[36;1mThe current\033[33;1m%s\033[36;1m \'sn is:\033[31;1m %s\033[0m' % (conf_file,new_sn)
def append_single_record(conf_file,record):
conf = open(conf_file,"a")
conf.write(record)
conf.close()
print '\033[36;1mThe record which append into \033[33;1m%s\033[36;1m is \033[32;1msuccessful!\033[0m' % conf_file
def get_host():
while True:
host = raw_input("\033[32;1mPlease input the host name(input 'exit' to quit):\033[0m").strip()
if host.isalnum() == False:
print "\033[31;1mThe name you input is contained illegal characters!\033[0m"
continue
else:
return host
def get_IP():
while True:
ip = raw_input("\033[32;1mPlease input the last part of host IP(input 'exit' to quit):\033[0m").strip()
if ip == "exit":
return ip
elif ip.isdigit():
if int(ip)>0 and int(ip)<255:
return ip
else:
print "\033[31;1mThe number you input is out of IP's range!\033[0m"
continue
else:
print "\033[31;1mThe number you input is not a number!\033[0m"
continue
def is_confirm(confirm_message):
continue_input = raw_input("\033[36;1m" + confirm_message +"\033[31;1m(y/n, yes/no)\033[0m").strip().lower()
if continue_input == 'y' or continue_input == 'yes':
return True
else:
return False
def get_full_records(host,ip):
full_ip = prefix_of_ip + ip
full_host = host + postfix_of_host
print '\033[36;1mThe DNS record info is:\033[0m'
print '\033[31;1mHost:\033[33;1m%s\033[0m' % full_host
print '\033[31;1mIP:\033[33;1m%s\033[0m' % full_ip
forward_resolution_record = host + "\t"*4 + "IN A \t" + full_ip + "\n"
reverse_parsing_record = ip + "\tIN PTR\t \t" + full_host + "\n"
records = {"forward_resolution":forward_resolution_record, "reverse_parsing":reverse_parsing_record}
return records
def append_process(host, ip):
records = get_full_records(host,ip)
append_single_record(forward_resolution_conf, records['forward_resolution'])
append_single_record(reverse_parsing_conf, records['reverse_parsing'])
def update_sn_process():
update_single_sn(forward_resolution_conf)
update_single_sn(reverse_parsing_conf)