Linux将磁盘格式从MBR转换到GPT
利用gdisk工具进行分区转换：
[root@localhost /]# yum install -y gdisk
转换/dev/sda2分区，sda1分区为系统启动分区，不需要转换。
[root@localhost /]# gdisk /dev/sda2
GPT fdisk (gdisk) version 0.8.10
Partition table scan:
MBR: not present
BSD: not present
APM: not present
GPT: not present
Creating new GPT entries.
Command (? for help): w
Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!
Do you want to proceed? (Y/N):
输入y,开始：
OK; writing new GUID partition table (GPT) to /dev/sda2.
Warning: The kernel is still using the old partition table.
The new table will be used at the next reboot.
The operation has completed successfully.
[root@localhost /]#
查看分区类型：
[root@localhost /]# fdisk -l /dev/sda2
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
磁盘 /dev/sda2：298.4 GB, 298364960768 字节，582744064...
Python的requests模块忽略SSL证书验证警告
报错信息如下：
requests.exceptions.SSLError: HTTPSConnectionPool(host='59.197.228.154', port=443): Max retries exceeded with url: /api/datetime (Caused by SSLError(SSLCertVerificationError("hostname '59.197.228.154' doesn't match '124.95.133.232'")))
解决办法如下：
创建一个 requests 会话对象，并在该会话中全局禁用 SSL 证书验证警告。
import requests
from requests.packages.urllib3.exceptions import InsecureRequestWarning
# 禁用 InsecureRequestWarning
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
# 创建一个会话对象
session = requests.Session()
session.verify = False
response = session.get('https://127.0.0.1')
print(response.text)
获取内网时间服务器时间并设置本机时间
脚本如下：
import requests
import json
import os
import datetime
#写日志函数
def errorlog(message):
fileName='/opt/error.log'
with open(fileName,'a')as file:
file.write(datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")+message+'\n')
#从内网时间服务器获取时间
url='http://59.197.228.154/api/datetime'
ret= requests.get(url)
rs = json.loads (ret.text)['result']['datetime']
#格式化时间
settime = datetime.datetime.strptime(rs, "%Y-%m-%d %H:%M:%S")
nowtime = datetime.datetime.strptime(datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S"), "%Y-%m-%d %H:%M:%S")
print (settime,nowtime)
#时间差小于10就同步时间
if (abs(nowtime - settime)).seconds 10:
try:
os.system("date -s '%s'"%(str(rs)))
except:
errorlog('时间设置失败!')
errorlog('成功！')
else:
errorlog('时间超限！')
Python3 运行测试成功。
循环检测服务器某个端口是否开放
脚本如下：
import socket
import datetime
import time
def check_port(host, port):
try:
socket.create_connection((host, port), timeout=1).close()
return True
except socket.error as e:
return False
host = '166.166.166.24'
port = 5236
while True:
with open('test.log', 'a') as file:
if check_port(host, port):
file.write(str(datetime.datetime.now()) + f" Port {port} on {host} is open.\n")
else:
file.write(str(datetime.datetime.now()) + f" Port {port} on {host} is closed or unreachable.\n")
file.close()
time.sleep(10)
站长已经使用python3.6验证通过。
解决：sqlalchemy.orm.exc.UnmappedInstance...
错误的语句为：
message = Message.query.filter(message_id == Message.id)
db.session.delete(message)
db.session.commit()
更改为：
message = Message.query.get(message_id)
db.session.delete(message)
db.session.commit()
重新执行删除，成功。
关闭笔记本自带键盘
左下角搜索栏中搜索cmd，以管理员身份运行，在弹出的窗口中将下面这段代码输入进去，并回车。
sc config i8042prt start= disabled
重启，笔记本自带键盘关闭如果想恢复，只要外置键盘以同样方法输入下面这个代码，重启即可。
sc config i8042prt start= auto
