eeengineer

IT Engineer living in Japan.
Speciality : Linux/VMware/vSAN/Oracle/Postgres/JBoss/Tomcat/Apache/AWS/Azure
Interest : Tech/Business/Book/Blog
Enjoy Learning ☺️

[eeengineer @eeengineer777]

Illustrated guide to HTTPS & TLS 1.3 — follow the full handshake flow live with packet captures using Wireshark. Unlock insights into encryption & secure connections.
https://t.co/tsmEjqSvJE #HTTPS #TLS13 #Wireshark #Security

[eeengineer @eeengineer777]

Understanding Oracle execution plans is essential for solving SQL performance issues.

This practical guide covers:
• How to read execution plans
• Join methods & join order
• Real execution data analysis for SQL tuning
https://t.co/6AbhNCe8xX
#Oracle #SQLTuning #ExecutionPlan

[eeengineer @eeengineer777]

Diagnosing Oracle performance issues that don’t show up clearly in AWR?

This practical guide explains how to use ASH to identify CPU bottlenecks, I/O waits, and lock contention with real analysis techniques.

https://t.co/jX2mFUjGuF

#Oracle #Performance #Database #SQL #ASH #DBA

[eeengineer @eeengineer777]

Struggling with high Datadog costs? Learn how to reduce data transfer and optimize your monitoring setup efficiently. 🚀

Read more: https://t.co/0lML7oxmDK

#Datadog #CloudCost #Monitoring #DevOps #FinOps

[eeengineer @eeengineer777]

🚨 Linux High Memory Usage in Production?

Learn the causes, how to identify memory-hungry processes, analyze logs, apply temporary workarounds, and implement permanent fixes.

Practical, step-by-step troubleshooting guide 👇
https://t.co/wiOb8TcLwq
#Linux #SRE #Troubleshooting

[eeengineer @eeengineer777]

Want to learn Linux crash dump analysis?
This guide shows how to collect memory dumps with kdump, analyze vmcore using crash, and troubleshoot kernel panics step by step.
Perfect for beginners and sysadmins.
👉 https://t.co/CVSMGQ5Tqk
#Linux #kdump #vmcore #CrashAnalysis

[eeengineer @eeengineer777]

🚀 Learn how to effectively use Apache JMeter for load testing! This guide covers setup, test creation, and result analysis. Perfect for developers and testers.

🔗 https://t.co/s5gt5jSaOw

#JMeter #LoadTesting #PerformanceTesting

[eeengineer @eeengineer777]

Linux server CPU at 100%?
Learn how to analyze high CPU usage using top, ps, and pidstat, apply quick mitigations, and implement long-term fixes for stable production systems.

https://t.co/9hvc8ALkt1

#Linux #SRE #Ops #IncidentResponse

[eeengineer @eeengineer777]

Debugging Java performance problems?

This guide walks through thread dumps, heap dumps, and core dumps, explaining when to use each and how to analyze them to find memory leaks, deadlocks, and JVM crashes.

👉 https://t.co/D5zxDshRQF

#Java #JVM #PerformanceEngineering #SRE

[eeengineer @eeengineer777]

🔐 Secure Tomcat Monitoring
Learn how to enable JMX on Tomcat with SSL and authentication for safe production monitoring.
Step-by-step config & key points included 👇
https://t.co/p0TynWUpXh
#Tomcat #JMX #Java #Monitoring #Security #DevOps

[eeengineer @eeengineer777]

📊 Want deeper insight into Linux performance?

Learn how to monitor CPU, memory, I/O & network with sar — real-time & historical metrics for smarter troubleshooting.

🔗 https://t.co/3s2R325R0R

#Linux #DevOps #SysAdmin #Monitoring #Performance

[eeengineer @eeengineer777]

Struggling because project progress docs aren’t being updated at all… Thinking of setting a deadline the day before the meeting and checking in with anyone who hasn’t updated their items. 😅

[eeengineer @eeengineer777]

Learn the difference between monitoring and observability and get step-by-step guidance to set up Datadog! Perfect for beginners. 🚀
https://t.co/FiazBqvfXH
#Datadog #Monitoring #Observability #DevOps #Cloud

[eeengineer @eeengineer777]

Enable JMX on Tomcat with SSL, authentication & remote monitoring! Learn how to monitor memory, threads & GC safely. 🔗 https://t.co/p0TynWUpXh #Tomcat #JMX #JavaMonitoring #DevOps #SysAdmin

[eeengineer @eeengineer777]

🚀 Learn how to effectively use Apache JMeter for load testing! This guide covers setup, test creation, and result analysis. Perfect for developers and testers.

🔗 https://t.co/s5gt5jSaOw

#JMeter #LoadTesting #PerformanceTesting

[eeengineer @eeengineer777]

Explore the essentials of Linux file systems in this engineer-friendly guide! 🖥️ Learn how storage, hierarchies, and permissions work.
🔗 https://t.co/A5ANSF2XDs
#Linux #FileSystem #Engineering #TechGuide

[eeengineer @eeengineer777]

🚀 What is Oracle RAC Cache Fusion? It ensures data consistency across multiple instances while enabling high-speed DML operations. This article explains the mechanism and block transfer process in detail. 📷 https://t.co/zb9q2C166P #OracleRAC #CacheFusion #Database #DBA

[eeengineer @eeengineer777]

🔄 Master Oracle GoldenGate! This guide covers data replication fundamentals, helping you ensure real-time data integration across systems.

🔗 https://t.co/kghv0LU4r2

#OracleGoldenGate #DataReplication

[eeengineer @eeengineer777]

🚀 Dive into Oracle RAC! This beginner-friendly guide explains Clusterware & ASM fundamentals, helping you boost database availability and scalability.

🔗 https://t.co/5wSmO9ylfa

#OracleRAC #Clusterware #ASM #HighAvailability #Scalability #Database

[eeengineer @eeengineer777]

New to TLS 1.3? 🔐 Learn how to decrypt HTTPS traffic step-by-step with Wireshark. From session keys to sslkey logging, this guide has you covered 👉 https://t.co/lCnpiAoTyc
#Wireshark #TLS13 #Cybersecurity

[eeengineer @eeengineer777]

Linux Memory: Beginner-friendly guide to virtual memory in Linux.
Learn how paging, MMU, and process isolation improve efficiency, stability, and security.
Read here 👉 https://t.co/QMdODilMOo

#Linux #MemoryManagement #VirtualMemory