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Too many Open files
Nginx access log rotate
ndc
OpenToFu Proxmox bpg/proxmox provider
Proxmox VM Provisioning with OpenTofu
Coolify Deployment & Storage Box Backup Integration
Frappe Production Stack
Check PDB/CDB
IN dbever SELECT SYS_CONTEXT('USERENV', 'CON_NAME') AS container FROM dual; In root ALTER SESSION SET CONTAINER=CDB$ROOT; SHOW CON_NAME; Run on PDB on sqlplus Docker exec and run ALTER SESSION SET CONTAINER=ORCLPDB1; sqlplus -L 'sys/StrongPass123...
Test CDC
STEP 1 — Create a Test Table (Inside PDB) Connect to Oracle inside the container: docker exec -it oracle19c sqlplus PDBZIUM/StrongPassword@ORCLPDB1 Or: docker exec -it oracle19c bash sqlplus pdbzium/StrongPassword@ORCLPDB1 ...
MongoDB 8 Installation Guide for CentOS 8
Install MongoDB 8 on CentOS 8 This guide provides the correct steps to install MongoDB 8.0 on CentOS 8 / RHEL 8 / Rocky Linux 8 / AlmaLinux 8. 1. Add MongoDB YUM Repository Create a repo file: sudo nano /etc/yum.repos.d/mongodb-org-8.0.repo Paste: [mongodb-o...
Install PostgreSQL 16.9 on CentOS 8
Install PostgreSQL 16.9 on CentOS 8 / CentOS Stream 8 1. Disable Built‑in PostgreSQL Module sudo dnf -qy module disable postgresql 2. Add Official PostgreSQL (PGDG) Repo sudo dnf install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pg...
PostgreSQL 16 + Debezium CDC Setup Guide
PostgreSQL 16 + Debezium CDC Setup Guide (Step-by-Step) This document explains: Enabling PostgreSQL password login Creating database + users Setting replication permissions Configuring PostgreSQL for Debezium Installing Debezium PostgreSQL Kafka plugin Creati...
Create table and test
Connect to PostgreSQL If your DB name is mydb: psql -U postgres -W -d mydb OR using the Debezium user (read-only but good for testing SELECT): psql -U debezium -W -d mydb ✅ 2. Create a table Inside psql: CR...
CDC streaming pipeline from PostgreSQL → Kafka → Flink → ClickHouse.
sudo wget https://repo1.maven.org/maven2/com/clickhouse/flink/flink-connector-clickhouse-2.0.0/0.1.1/flink-connector-clickhouse-2.0.0-0.1.1-all.jar wget https://repo1.maven.org/maven2/org/apache/flink/flink-connector-kafka/3.1.0-1.18/flink-connector-kafka-3...
Jar create
mvn clean package -DskipTests mvn clean install
Test Grpc
First run the grpcurl docker run --rm -v $(pwd):/proto fullstorydev/grpcurl \ -plaintext \ -import-path /proto \ -proto myservice.proto \ 172.16.2.82:30490 list Output: election.ElectionScheduleService Then List all RPC methods docker run --rm -v $(pw...
New Page
nscache 65536nserver 8.8.8.8nserver 8.8.4.4 config /conf/3proxy.cfgmonitor /conf/3proxy.cfg log /logs/3proxy-%y%m%d.log Drotate 60counter /count/3proxy.3cf users $/conf/passwd include /conf/countersinclude /conf/bandlimiters auth strongdeny * * 127.0.0.1a...
squid
Based on the project structure, this is a Laravel 10 PHP application for managing Squid proxy users. Here's how to run it: Quick Start 1. Install Dependencies composer install npm install 2. Configure Environment Since you have .env open, make ...
Some Essential checks
Check keeper : echo ruok | nc 127.0.0.1 9181 sudo systemctl restart clickhouse-keeper Check cluster SELECT * FROM system.clusters WHERE cluster='default'; Additional Keeper tests Cluster monitoring echo mntr | nc 127.0.0.1 918...
Create db and replicated tables
Build Replicated ClickHouse Tables Keeper is fully working.Now you can create replicated database + replicated tables that sync across all 3 servers. 🚀 Step-by-step instructions (copy/paste) 1. Create database on all nodes: CREATE DATABASE re...
New Page
CREATE TABLE my_table ON CLUSTER default ( `id` UInt64, `name` String, `created_at` String ) ENGINE = MergeTree ORDER BY id INSERT INTO demo.my_table (id, name, created_at) VALUES(0, '228', ''); select * from my_table INSERT INTO demo.my_tab...
Too many open files debug in k8s
ulimit -n Output : 1048576 kubelet limit systemctl show kubelet | grep NOFILE Output : LimitNOFILE=524288 LimitNOFILESoft=1024 systemd global systemctl show --property=DefaultLimitNOFILE Output: DefaultLimitNOFILE=524288 container runtime systemctl show con...
Log raoted policy enforcement
Final logrotate config for access.json Create / edit: sudo nano /etc/logrotate.d/nginx-access-json Paste exactly this: /var/log/nginx/access.json { daily rotate 30 maxsize 30G missingok notifempty c...
Clarification Required on Resource Allocation and Migration Plan
Asslamulaikum, As per our initial requirement, we requested infrastructure resources for the BEZA OSS environment, and we appreciate the resources provisioned by NDC, including the compute and storage allocation across DC and DR, which appear sufficient for o...
Network Static
network: ethernets: ens18: addresses: - 172.16.10.26/24 nameservers: addresses: - 8.8.8.8 search: [] routes: - to: default via: 172.16.10.254 version: 2
Proxmox VM Provisioning with OpenTofu
Proxmox VM Provisioning with OpenTofu Automated VM provisioning on Proxmox VE using OpenTofu (Terraform-compatible), Ubuntu cloud images, and cloud-init. VMs are cloned from a template and configured with a static IP, SSH access, and a Hetzner Storage Box CIFS...
Coolify Deployment & Storage Box Backup Integration
Coolify Deployment & Storage Box Backup Integration Task 2.1 -- Install Coolify (Management Engine) Coolify was successfully installed on the Ubuntu VM using the official installation script. Installation curl -fsSL https://cdn.coollabs.io/coolify/install.sh |...