Linux remote SSH uses certificate-secured login (what do you do-zgbn)

Linux Remote SSH Using Certificate Secure Login Server: Ali Cloud Server Operating System: CentOS 7 (Linux) Remote client: Xshell5 (SSH certificate) Logged in user: root Create public and private keys on the server side Log in to the system using the root user and be in the default directory for the current root ...

Posted on Sun, 19 Jul 2020 12:17:54 -0400 by romilbm

An example of ASM disk not found in DBCA Library

Environmental Information red hat linux64  gi 11.2.0.4  oracle 11.2.0.4 Problem Phenomena After installing gi software and oralce database software, the database is built through the dbca user interface. It is found that the database can be built normally on node1, not on node2. The dbca library building process errors on node2. Figur ...

Posted on Sun, 05 Jul 2020 11:45:40 -0400 by dannybrazil

Django studies a love poem

   Django is one of the most representative frameworks for Web development in Python. This article will give you a brief introduction to Django development.    first make sure that the django module is installed on your linux system. Open Python 3 and use the following command to find the directory where django is located: & ...

Posted on Wed, 01 Jul 2020 12:05:46 -0400 by mtrp

Django studies a love poem

   Django is one of the most representative frameworks for Web development in Python. This article will give you a brief introduction to Django development.    first make sure that the django module is installed on your linux system. Open Python 3 and use the following command to find the directory where django is located: & ...

Posted on Wed, 01 Jul 2020 12:04:11 -0400 by plehmurof

Record of Jenkins' step hole installation with container

In order to facilitate the start command of the management container, the docker compose command is used together with docker-compose.yml File start container. Basic use can Refer here. About how to install Jenkins in Docker, Reference here. If you just want to see the final docker-compose.yml ...

Posted on Sun, 28 Jun 2020 22:41:11 -0400 by deadlyp99

Implementation of Prometheus alarm through Alertmanager

Prometheus does not support the alarm function, mainly through the plug-in alertmanager to achieve alarm. Alertmanager is used to receive the alarm information sent by Prometheus, process the alarm and send it to the specified user or group. The process of Prometheus triggering an alarm is as follows: p ...

Posted on Sun, 28 Jun 2020 22:35:57 -0400 by flamtech

Percona MySQL View Tables Not Accessed

It's really hard to find out if a table in an instance has access.( A common method is to open a tcpdump or tshark persistent packet to filter suspected table names.( However, if we were using MySQL from the Percona branch, this would be much easier. Under Percona MySQL, we can open the userstat parameter and query the system statistics tabl ...

Posted on Sun, 28 Jun 2020 12:51:50 -0400 by Sno

Differences between docker save and docker export

This article talks about the difference between docker save and docker export. Both docker save and docker export can export image packages. What are the functions of docker save and docker export? What application scenarios are applicable? The tested version of docker in this article is as follows. It ...

Posted on Sat, 27 Jun 2020 23:43:41 -0400 by NewBob

Dirty_COW_Race_Condition_Attack

Article catalog preface 1. Summary & & summary 2. Preparations 2.1 mmap function 2.1.1 application of MMAP function 2.2.2 difference between MMAP and normal file operation 2.2 copy on write mechanism 2.2.1 mmap function MAP_PRIVATE parameter 2.2.2 madwise function 3. Dirty COW 4. Result ...

Posted on Sat, 27 Jun 2020 22:04:03 -0400 by AceE

mongoDB and pymongo learning

Contents of this article The foregoing install linux Installation docker container deployment Windows setup use GUI viewer Differences between mongoDB and relational database mongoDB basic syntax pymongo module usage The foregoing mongoDB should be a non relational database according to the ...

Posted on Fri, 26 Jun 2020 04:24:11 -0400 by vertmonkee