در این کتاب چه میخوانیم :
• ضرورت استفاده از Siem و بخش soc , noc
• بررسی عنوان IDS و IPS ها
• معماری ossec
• معماری wazuh
• نصب ossec
• نحوه مهاجرت از ossec به Wazuh
• نصب آفلاین wazuh
• ویژگیهای wazuh و امکانات آن
Raid(redundant array of independent disks).ali torabi
RAID in persian.In this PowerPoint you will be familiar with the concept of Hardware and software RAID, you will also be able to get familiars with it's shortcoming and strong points in a small time
HA به این معنی است که وقتی یک سرور فیزیکی مشکلی پیدا کرد تمام ماشینهای مجازی آن به سرور دیگر منتقل می شوند. باید یادآور شد که بخش عمدهای از این قابلیتها هماکنون در PVM پیادهسازی شده است. در این مستند به بررسی HA و FT در VMware می پردازد.
در این کتاب چه میخوانیم :
• ضرورت استفاده از Siem و بخش soc , noc
• بررسی عنوان IDS و IPS ها
• معماری ossec
• معماری wazuh
• نصب ossec
• نحوه مهاجرت از ossec به Wazuh
• نصب آفلاین wazuh
• ویژگیهای wazuh و امکانات آن
Raid(redundant array of independent disks).ali torabi
RAID in persian.In this PowerPoint you will be familiar with the concept of Hardware and software RAID, you will also be able to get familiars with it's shortcoming and strong points in a small time
HA به این معنی است که وقتی یک سرور فیزیکی مشکلی پیدا کرد تمام ماشینهای مجازی آن به سرور دیگر منتقل می شوند. باید یادآور شد که بخش عمدهای از این قابلیتها هماکنون در PVM پیادهسازی شده است. در این مستند به بررسی HA و FT در VMware می پردازد.
راهنماي راه اندازی سرویس Golden Gate MicroservicesMojtaba Khandan
Oracle GoldenGate supports two architectures, the Classic Architecture and the
Microservices Architecture (MA).
Oracle GoldenGate can be configured for the following purposes:
• A static extraction of data records from one database and the loading of those
records to another database.
• Continuous extraction and replication of transactional Data Manipulation Language
(DML) operations and data definition language (DDL) changes (for supported
databases) to keep source and target data consistent.
• Extraction from a database and replication to a file outside the database.
رایانش ابری یک مدل معماری برای گسترش و دسترسی به امکانات رایانه از طریق خطوط اینترنت است. یک سرویس دهنده ی ابری قادر است دسترسی همه جایی به سرویس های نرم افزاری که در مرکز داده ابری اجرا می شوند، را از طریق مرورگرهای اینترنتی عرضه کند. این نرم افزار نیاز های مصرف کنندگان و کسب و کار ها را تامین خواهد کرد“
Ceph: A Powerful, Scalable, and Flexible Storage SolutionYashar Esmaildokht
## Ceph: A Powerful, Scalable, and Flexible Storage Solution
Ceph is an open-source, distributed storage platform that offers a range of features, including object storage, block storage, and file systems. It provides a highly scalable, reliable, and flexible solution for managing your data.
Ceph's Key Components:
* RADOS (Reliable Autonomic Distributed Object Storage): Ceph's core storage component. It provides object storage capabilities and forms the basis for other services.
* RBD (RADOS Block Device): Ceph's block storage service. Allows you to create and manage block devices that can be attached to virtual machines or containers.
* CephFS (Ceph File System): Ceph's distributed file system. Offers scalable and reliable shared file system access for applications and users.
Ceph Backfill:
Backfill is a process used to repopulate data onto newly added OSDs (Object Storage Devices) in a Ceph cluster. Here's how it works:
1. Data Imbalance: When new OSDs are added, the cluster may have an imbalance in data distribution. Some OSDs might have more data than others.
2. Backfill Process: Ceph identifies the underutilized OSDs and starts copying data from overloaded OSDs to these new OSDs.
3. Data Balancing: The backfill process aims to achieve an even distribution of data across all OSDs in the cluster.
Ceph Scrub:
Scrubbing is a data integrity check that Ceph performs to detect and repair errors in stored data. Here's the process:
1. Data Verification: Ceph compares the data stored on different OSDs that hold replicas of the same object.
2. Error Detection: Any discrepancies between the data replicas are flagged as errors.
3. Data Repair: Ceph attempts to repair the errors by copying the correct data from another OSD.
Ceph Erasure Coding (EC):
Erasure coding is a technique used to increase data resilience and reduce storage overhead in a Ceph cluster.
* Data Chunking: Data is divided into smaller chunks, and a parity chunk is generated.
* Data Distribution: These chunks and parity chunks are distributed across multiple OSDs in the cluster.
* Data Recovery: Even if some OSDs fail, the lost data can be recovered from the remaining chunks and parity chunks.
Benefits of EC:
* Increased Data Resilience: Can tolerate more OSD failures without losing data.
* Reduced Storage Overhead: Reduces the total storage capacity required for storing data replicas.
* Improved Performance: Can enhance performance by spreading the data load across more OSDs.
Understanding Ceph, backfill, scrub, and EC is crucial for efficient operation and maintenance of a Ceph cluster. These mechanisms ensure data integrity, availability, and scalability, making Ceph a robust and powerful solution for storage management.
راهنماي راه اندازی سرویس Golden Gate MicroservicesMojtaba Khandan
Oracle GoldenGate supports two architectures, the Classic Architecture and the
Microservices Architecture (MA).
Oracle GoldenGate can be configured for the following purposes:
• A static extraction of data records from one database and the loading of those
records to another database.
• Continuous extraction and replication of transactional Data Manipulation Language
(DML) operations and data definition language (DDL) changes (for supported
databases) to keep source and target data consistent.
• Extraction from a database and replication to a file outside the database.
رایانش ابری یک مدل معماری برای گسترش و دسترسی به امکانات رایانه از طریق خطوط اینترنت است. یک سرویس دهنده ی ابری قادر است دسترسی همه جایی به سرویس های نرم افزاری که در مرکز داده ابری اجرا می شوند، را از طریق مرورگرهای اینترنتی عرضه کند. این نرم افزار نیاز های مصرف کنندگان و کسب و کار ها را تامین خواهد کرد“
Ceph: A Powerful, Scalable, and Flexible Storage SolutionYashar Esmaildokht
## Ceph: A Powerful, Scalable, and Flexible Storage Solution
Ceph is an open-source, distributed storage platform that offers a range of features, including object storage, block storage, and file systems. It provides a highly scalable, reliable, and flexible solution for managing your data.
Ceph's Key Components:
* RADOS (Reliable Autonomic Distributed Object Storage): Ceph's core storage component. It provides object storage capabilities and forms the basis for other services.
* RBD (RADOS Block Device): Ceph's block storage service. Allows you to create and manage block devices that can be attached to virtual machines or containers.
* CephFS (Ceph File System): Ceph's distributed file system. Offers scalable and reliable shared file system access for applications and users.
Ceph Backfill:
Backfill is a process used to repopulate data onto newly added OSDs (Object Storage Devices) in a Ceph cluster. Here's how it works:
1. Data Imbalance: When new OSDs are added, the cluster may have an imbalance in data distribution. Some OSDs might have more data than others.
2. Backfill Process: Ceph identifies the underutilized OSDs and starts copying data from overloaded OSDs to these new OSDs.
3. Data Balancing: The backfill process aims to achieve an even distribution of data across all OSDs in the cluster.
Ceph Scrub:
Scrubbing is a data integrity check that Ceph performs to detect and repair errors in stored data. Here's the process:
1. Data Verification: Ceph compares the data stored on different OSDs that hold replicas of the same object.
2. Error Detection: Any discrepancies between the data replicas are flagged as errors.
3. Data Repair: Ceph attempts to repair the errors by copying the correct data from another OSD.
Ceph Erasure Coding (EC):
Erasure coding is a technique used to increase data resilience and reduce storage overhead in a Ceph cluster.
* Data Chunking: Data is divided into smaller chunks, and a parity chunk is generated.
* Data Distribution: These chunks and parity chunks are distributed across multiple OSDs in the cluster.
* Data Recovery: Even if some OSDs fail, the lost data can be recovered from the remaining chunks and parity chunks.
Benefits of EC:
* Increased Data Resilience: Can tolerate more OSD failures without losing data.
* Reduced Storage Overhead: Reduces the total storage capacity required for storing data replicas.
* Improved Performance: Can enhance performance by spreading the data load across more OSDs.
Understanding Ceph, backfill, scrub, and EC is crucial for efficient operation and maintenance of a Ceph cluster. These mechanisms ensure data integrity, availability, and scalability, making Ceph a robust and powerful solution for storage management.