Research on cloud storage security in the environment of Internet of things
The Internet of Things (IOT) is a kind of network which uses computer technology, Internet technology, communication technology, sensor technology and other technologies to connect goods with the Internet in order to realize the functions of information transmission, intelligent identification, goods management and so on.
With the extensive attention of cloud computing technology, cloud storage technology has also received extensive attention. Cloud storage can integrate a variety of storage devices ...
1. >base.ldifFiles, DC and configuration files in the same consistency.
dn: dc=dc,dc=com
o: ldap
objectclass: dcObject
objectclass: organization
2）Then execute the command to import the database.
ldapadd -f base.ldif -x -D cn=root,dc=dc,dc=com -W
It will prompt you to enter the password. If you add it, you will be prompted to add a new node.
Enter LDAP Password:
adding new entry “dc=dc,dc=com”
3）
According to the tutorial, it was wrong to add and save quest.
1.models.pyThere is no mistake in naming it.
2.Check INSTALLED_APPS under mysite-> settiongs settings are correct.
3.Using Python manage.py makemigrations polls has no modified content.
4.Check 0001_***.py normal
Resolvent:
1.Delete all files except __init__.py under migrations.
2.python manage.py makemigrations polls
3.python manage.py migration
4.View database has generated corresponding table
Cross-compiler tool chain is a comprehensive development environment composed of compiler, connector and interpreter. Cross-compiler tool chain is mainly composed of binutils, GCC and glibc.
The free version is currently available from three mainstream vendors: GNU, Codesourcery and Linora.
1、aarch64-linux-gnu-gcc：It is a ARM cross compilation tool launched by Linaro company based on GCC. It can be used to cross-compile bare computer programs, u-boot, Linux kernel, filesystem, and App applications in ARM V8 64-bit targets.
2、arm-none-linux-gnueabi-gcc：Codesourcery (now acquired b...
Download udev-126.tar.xz
The download address is: https://mirrors.edge.kernel.org/pub/linux/utils/kernel/hotplug/
Decompress files and compile them
#tar -xvf udev-126.tar.xz
# cd udev-126
# mkdir build
# vim config.sub
case $basic_machine in
# Recognize the basic CPU types without company name.
# Some are omitted here because they have special meanings below.
1750a | 580 \
| a29k \
| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
| am33_2.0 \
| arc | arm | arm[bl]e | arme[lb] | armv[2345] | ar...
Excerpts: https://www.linuxidc.com/Linux/2012-06/62894.htm
case when The conditional then condition is true when the value of else is false and the value is end.
--Query the number of times a unified field is equal to a value.
select count(m.underwriteflag) from prpcmain m where m.underwriteflag='1' ; --720407
select count(m.nationflag) from prpcmain m where m.nationflag='1' --720422
--Merge querySelectcount(case when m.underwriteflag='1' then 1 end)Field 1, count (case when m.nationflag='1'then 1 end) field 2 from prpcmain m;
Session Add Host Name example:
dxc@123.206.*.* port:0000Saved Sessions:Tunnels
SSH Medium Tunnels add channel:Source port :7001Destination:localhost:8080Auto RemoteAdd Add, select Open on both sides.Open PuTTY and enter your password.exit Sign out
The final operation diagram (procedure is shown in ordinal number 2):
#!/usr/bin/env python
# -*- coding:utf-8 -*-
# ------------------------------------------------------------
#
# Reference material:Python and Tkinter make simple window windows - NetEase cloud classroomHttps://study.163.com/course/courseLearn.htm? CourseId=1003216011#/learn/video? LessonId=1003650349& courseId=1003216011BePython:tkinter to change pictures regularly - CSDN blogHttps://blog.csdn.net/ztchun/article/details/69524485BeGUI Programming with Python: ButtonsIn TkinterHttps://www.python-course.eu/tkin...
