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Introduction Oracle expands Oracle Linux KVM server virtualization solution with Oracle Linux 8 support Oracle Linux Virtualization Manager    

Terms & Concepts Queue prefetch: Consumer 的參數。當 consumer 接收訊息是採 PUSH 模式，且發送端會有大量訊息寫入，由於 consumer 的 PUSH 模式，會一次接收大量(一次幾百或幾千)的訊息，假使 consumer 未能及時處理所有訊息，那些待處理的訊息會處於 Unacked 狀態，一旦 Unacked 的訊息量過多，主機就會終止連線。要解決這個問題，consumer 必須使用 prefetch 限制主機每次推送至 consumer 的訊息量。 ...

Uncomplicated Firewall，簡稱 UFW，是 Ubuntu 系統上預設的防火牆組件。UFW 是為輕量化組態 iptables 而開發的一款工具。UFW 提供一個非常友好的介面用於建立基於 IPV4，IPV6的防火牆規則。UFW 在 Ubuntu 8.04 LTS 後的所有發行版中預設可用。 Tutorials Linux Firewalls: Uncomplicated Firewall (ufw) Using Firewall With UFW in Ubuntu Linux [Beg...

Web UI Overview Ready: 已經發佈到 Queue 的訊息量 Unacked: 消費端已接收但尚未 Ack 的訊息量 Total: Ready + Unacked CLI rabbitmq-diagnostics Online Resource Utilization rabbitmq-diagnostics observer RabbitMQ Version [root@tpeeaprmq98 ~]# rabbitmq-diagnostics server_versi...

maxmind_db_ip_geolocator.py Original Post: Python Basics for Hackers, Part 4: How to Find the Exact Location of any IP Address   #! /usr/bin/python #Hello fellow hackers! My name is Defalt #I built a very basic version of this tool a long time ago and re...

Clustering Guide — RabbitMQ RabbitMQ Learning III: RabbitMQ Clustering and Load Balancing How to Set Up the RabbitMQ Cluster on Ubuntu/Debian Linux Clustering Guide (vmware.com) RabbitMQ 集群搭建 (with HAProxy) RabbitMQ集群架构模式 | guaosi的博客 For Windows only...

Tutorials [GitHub] AMQP.Net Lite RedHat AMQ .Net Client C# 連線至 RabbitMQ Cluster - 使用 RabbitMQ .Net Client 及 EasyNetQ [GitHub] EasyNetQ Case: Console RabbitMQ Client ConsoleRabbitMQ.zip Package Required: RabbitMQ.Client Target Framework: net...

Q: 無法啟動 node 服務 Application rabbit exited with reason: {{could_not_write_file,"/var/lib/rabbitmq/mnesia/rabbit@tpeeaprmq982/cluster_nodes.config",enospc},{rabbit,start,[normal,[]]}} Solution: 可能是磁碟空間使用爆了，移除目錄 /var/lib/rabbitmq/mnesia 底下 node 資料子目錄。 [r...

Git 檔案狀態 狀態 2 與 3 的檔案已經由 Git 控管內容變更。  Modified/Untracked: 檔案已修改，尚未執行 git add  Staged: 檔案已經 git add，尚未執行 git commit  Commited: 檔案已經 git commit  全域設定檔 # Using git to edit the configuration git config global --edit # List the global configurations ...

Open Source/Freeware Zoiper - Branding for your business, Freeware, Support mobile and desktop (Linux/Windows/macOS) Linphone - Open Source, Support mobile and desktop (Linux/Windows/macOS) MicroSIP - Open Source, based on PJSIP for Windows OS PhonerLite...

編碼 UTF-8 宣告 #!/usr/bin/python # -*- coding: utf-8 -*- Find all installed modules help("modules"); 目前環境的模組安裝路徑 import powerline powerline.__path__ # Return ['/home/alang/.local/lib/python3.10/site-packages/powerline'] Print print( ... , end=" ") 輸...

Password Password Generator: https://passwrd.in  Modemly : Find the default password of the routers Linux VPS Benchmark yabs.sh curl -sL https://yabs.sh | bashwget -qO- yabs.sh | bash bench.sh wget -qO- bench.sh | bashcurl -Lso- bench.sh | bash ...

Tutorials Create a deb package How to create a .deb file (tutorial) 如何製作「deb檔(Debian Package)」 How to Create DEB Packages for Debian/Ubuntu How to Create a Simple Debian Package How to Create a Simple (.deb) Debian Package On Building a Debian Package...

[GitHub] 無法 git push 錯誤訊息 remote: Support for password authentication was removed on August 13, 2021.remote: Please see https://docs.github.com/en/get-started/getting-started-with-git/about-remote-repositories#cloning-with-https-urls for information on cur...

Ubuntu Pro is a set of features that you can enable for your Ubuntu system. Here is a list of what Ubuntu Pro includes: Security patches for common vulnerabilities and exposures (CVEs) Security guarantee for 23,000 packages in Ubuntu’s repos 10 years of e...

如何確認 /dev/sda 是 Local Disk 還是 SAN DIsk Solution: #> lsscsi [2:0:0:0] cd/dvd hp DVD-ROM DTA0N WBD0 /dev/sr0 state=running queue_depth=1 scsi_level=6 type=5 device_blocked=0 timeout=0 [3:0:0:0] tape IBM ULT3580-HH5 D2AD /dev...

存取 Container 網路 有個 Container 服務只需要與同個 Docker Network 的其他 Container 做通訊，平常不需要對外開放通訊埠，只有在開發或 Debug 時才需要從外部存取這個 Container 的網路，但又不想每次都要重啟 container 來開啟關閉需要的 port。 使用一個 socat 的 forwarder container，將外部 port 導入內部目的 container 的 port。 # 以 Nginx Web 為例 $ docker ru...

Create new project dotnet new console --output my-app dotnet run --project my-app Add Package from NuGet # The internet is required cd /path/to/your/project dotnet add package MySql.Data # Without the internet # Download the package from https://www....