MongoServerError: Plan executor error during findAndModify :: caused by :: E11000 duplicate key error collection [Solved]
Tips for “MongoServerError: Plan executor error during findAndModify :: caused by :: E11000 duplicate key error collection“. Mongo duplicate when findAndModify(), same for findOneAndUpdate() Don’t try to query the dynamic field with the upsert option! The same problem will occur when querying multiple conditions (include some not unique fields), while turn on option upsert=true. This…
[Full install] Streaming HLS with Nginx & FFMPEG
This guide for Centos/ RHEL/ Rocky Linux,… So, you can use for other Linux. Install some required packages Install NGINX from source Download some required packages: ZLIB: Find lastest version here: https://zlib.net/ My version is https://zlib.net/zlib-1.2.12.tar.gz PCRE Find lastest version here: https://www.pcre.org/ or https://sourceforge.net/projects/pcre/files/pcre2/ My version is pcre2-10.37.tar.gz OPEN SSL Find lastest version here: https://www.openssl.org/source/…
MariaDB / MySQL write and read Log files on Centos / Rocky Linux
By default, mariaDB never write logs hers for you. Sure, it’s her privacy that she doesn’t want others to know. However, you can enable her logging like this: Make your logs folder and change permission: Edit this file /etc/my.cnf.d/server.conf or /etc/my.cnf.d like as below: Restart your mariadb: Now, you have three file: /var/log/mariadb/error.log /var/log/mariadb/mysql.log /var/log/mariadb/slow.log…
Kafka CLI library- most Apache Kafka & Zookeeper commands in Linux OS
Make sure that you are in Kafka folder: Bellow example is Localhost, but you can do with any server if the true port is opened. Default Kafka port is 9092. You can change port number in config/server.properties. 1- Topics Kafka command 1.1- Create new topic more options: If replication-factor > 1 and partitions > 1,…
Cyberpanel: Unable to download OWASP ModSecurity Core Rules and COMODO ModSecurity 3.0
Cyberpanel: Unable to download OWASP ModSecurity Core Rules and COMODO ModSecurity 3.0 Edit this file: change the mirrorpath from “cyberpanel.net” to “cyberpanel.sh” mirrorPath = “cyberpanel.sh” Now, you redo install MODSECURITY RULES PACKAGES!
Send (publish, produce) a KAFKA message from a server to another server
Send (publish, produce) a message from a server to another server. In destination Kafka server, add this config to server.properties (my file is: /home/kafka/kafka/config/server.properties): Your IP is exactly which you set in producer… Or replace with domain. If you want to delete a KAFKA topic: So, it’s easy to send a KAFKA message to another…
NestJS (NodeJS) sending message to Kafka topic is easy
NestJS (NodeJS) send message to Kafka topic easily in this quick trick: Create a new NestJS test project: Paste this code in main.ts: Install package: Make sure topic: ‘test-server’ was created on target Kafka server, and you are subscribing on that topic to watch the result. Run script: Note: Your script only runs if you…