قبل كل شيء: ممّ تتكوّن الشبكة. المضيفون، والوصلات بينهم، والعناوين التي تتيح لجهاز أن يجد آخر.
المضيفون والوصلات والعناوين
باختصار
الأهداف
- تعريف المضيف والوصلة والعنوان
- ذكر المعرّفات الثلاثة لكل مضيف
A network is nothing more than a set of machines that agree on how to exchange data. Each machine is a host; the paths between them are links; and every host needs an address so the others can reach it.
Think of it like the postal system. A host is a building, a link is a road, and an address is what lets a letter find one specific door among millions. Without addressing, there is no network — only noise.
Three things every host has
| Identifier | Scope | Example |
|---|---|---|
| MAC address | The local link | a4:83:e7:2b:11:9c |
| IP address | The whole network | 192.168.1.42 |
| Hostname | Human-friendly | laptop.local |
Note
A host can have several addresses at once — one per network it is attached to. Your laptop has a different address on Wi-Fi than on a cabled connection.
للمراجعة
- الشبكة مضيفون تربطهم وصلات
- العنونة تُميّز الشبكة عن الضجيج
- قد يحمل المضيف عدّة عناوين