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Linux Administration

NFS 遠端目錄無法卸載 Umount a NFS directory with the error: device is busy 當遭遇某些異常情況時,原先的 NFS 目錄可能無...

Updated 1 year ago by Admin

Systemd

Linux Administration

簡介 Linux 的各項服務管理一直都是用 SysV Init Script,Systemd 是新的管理工具,在 CentOS 7 開始已經有支援。 設定上比 SysV Init 簡單許多,...

Updated 1 year ago by Admin

Patch Set Update (PSU)

Oracle Database

安裝 PSU 10.2.0.5.4 (p12419392_10205_Linux-x86_64.zip) 教學參考:Zip 檔解壓後 Readme.html 事前準備  Oracle ...

Updated 1 year ago by Admin

Install: DB2 v11 on CentOS

IBM DB2 Database

DB2 Database Server v11.1.4fp5 主程式安裝 # RedHat/CentOS 6/7 yum install libaio ksh rsh-server sg3...

Updated 1 year ago by Admin

Linux Bonding Network

Linux Administration 網路管理

RedHat 7/8 with nmtui nmtui > Edit a connection > Add > New Connection > Select Bond > Create ...

Updated 1 year ago by Admin

Rsync

Linux Administration

限制頻寬 限制傳檔的網路頻寬 --bwlimit=30000 30000 = 30000 KB/ps = 30 MB/ps Dry Run rsync -avh -n <sou...

Updated 1 year ago by Admin

TrueNAS CORE

NAS

Links Official: https://www.truenas.com/  Doc: https://www.truenas.com/docs/  GUI Text Co...

Updated 1 year ago by Admin

管理與操作

SHELL

查出目前使用哪種 SHELL ps -p $$ echo $0 echo $SHELL 執行 SHELL 的方式 sh file . file source file 常用鍵盤...

Updated 1 year ago by Admin

Ansible GUI

Ansible

簡介 Ansible是一套軟體工具,其可實現基礎架構即程式碼。它是開源的,並且該套件包括軟體供應、組態管理和應用程式部署等功能。 Ansible 最初由 Michael DeHaan 編寫,並...

Updated 1 year ago by Admin

Tips

FreeBSD

系統資訊 檢查系統是 32 或 64 bit uname -a getconf LONG_BIT 檢查 freebsd 版本 uname -mrs freebsd-version...

Updated 1 year ago by Admin

Learning ML

Machine Learning

Free Course ML for Developers

Updated 1 year ago by Admin

Tips

Nginx

FAQ Fix: Too Many Open Files How to Fix 'Too Many Open Files' Error in Nginx

Updated 1 year ago by Admin

SSL 常用技巧

SSL 與 CA

Check TLS/SSL certificate expiration date from a website) # NOTE: openssl requires at least 1.1...

Updated 1 year ago by Admin

SQL

MySQL

Online Tutorials MySQL Cheat Sheet WHERE SELECT name, wins FROM golfers WHERE wins = 1; ...

Updated 1 year ago by Admin

patch & diff

Linux Administration

單一檔案 # 建立更新檔 diff -uN old.code new.code > patch.file # 套用更新檔 patch < patch.file # 回復更新前 ...

Updated 1 year ago by Admin

Learning

FreeBSD

Tutorials FreeBSD 6.0架設管理與應用 The FreeBSD Project BSD vs Linux

Updated 1 year ago by Admin

iptables

Linux Administration

基本指令 列出現有規則 iptables -L -n -v iptables -L -n -v --line-numbers iptables -L INPUT -n -v --line...

Updated 1 year ago by Admin

Makefile

Linux Administration

何謂 Makefile make 命令雖有很多內建的功能,但它也無法知道如何建立應用程式。故必須提供一個檔案,即 Makefile,告訴 make 如何建立應用程式。 Makefile ...

Updated 1 year ago by Admin

Git 進階使用

Git

使用 rev-parse # Getting the top-level directory git rev-parse --show-toplevel # Find your way...

Updated 1 year ago by Admin

phpIPAM

Open Source Software

Introduction phpIPAM - Open source IP address management. phpipam is an open-source web IP addr...

Updated 1 year ago by Admin